hemostatic instruments

Abstract

The hemostatic device (10) comprises: a first cylindrical member (8C); a positioning member (8A) having a first engaging portion (82) capable of engaging with the opening of a blood vessel; a hemostatic agent (S) disposed at a position closer to the base end than the first engaging portion (82) of the first positioning member (8A); an extrusion member (8B) capable of extruding the hemostatic agent (S) from the front end of the first cylindrical member when it moves relative to the front end of the first cylindrical member (8C); a housing (71); a first operating part (510) for performing a first front-end action that moves the first cylindrical member and the extrusion member (8B) relative to the front end, and a second front-end action that moves the extrusion member relative to the front end; and a switching mechanism that restricts the second front-end action until the first front-end action ends, and releases the restriction on the second front-end action to perform the second front-end action when the first front-end action ends.

Description

[0001] This application is a divisional application of the invention patent application with application number 201880070998.9, application date December 25, 2018, and invention title "Hemostatic Device". Technical Field

[0002] This invention relates to a hemostatic device for sealing off openings in blood vessels to stop bleeding. Background Technology

[0003] Medical procedures are known to be performed by entering a blood vessel through a puncture site. One example of such a procedure is the use of a balloon catheter to dilate the narrowed portion of the blood vessel. After the procedure, the opening created by the puncture in the blood vessel needs to be sealed to stop the bleeding.

[0004] Patent Document 1 discloses an instrument for sealing vascular punctures. The instrument includes a positioning member comprising a positioning element, a propulsion member, a delivery sheath, and a plug device (also referred to as a "hemostatic agent"). The method of using the instrument is as follows: First, the positioning member, with the positioning element folded, passes through a puncture hole formed in the skin by the puncture (first step). Next, the positioning element expands in a position within the blood vessel (second step). Next, the positioning member moves in a direction pulled out of the puncture hole, and the positioning element contacts the inner wall of the blood vessel (third step). Next, the propulsion member, the delivery sheath, and the hemostatic agent pass through the puncture hole along the positioning element (fourth step). Next, the hemostatic agent is pressed from the base side towards the positioning element by moving the propulsion member relative to the delivery sheath towards the front end (fifth step). The hemostatic agent is left near the blood vessel. Thus, the hemostatic agent can achieve hemostasis by sealing the opening of the blood vessel.

[0005] Prior art literature

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2015-231542 Summary of the Invention

[0008] In the aforementioned apparatus, if the procedures are not performed sequentially, there is a possibility that the opening of the blood vessel cannot be properly sealed with a hemostatic agent. In particular, if the fifth procedure is performed before the fourth procedure is completed, the hemostatic agent may protrude from the transfer sleeve before approaching the positioning element, which is undesirable. Therefore, an apparatus is particularly needed that allows even users unfamiliar with the apparatus to easily and reliably perform the prescribed actions sequentially.

[0009] The purpose of this invention is to provide a hemostatic device that allows a user to easily and appropriately perform the operation of sealing the opening of a blood vessel with a hemostatic agent to achieve hemostasis.

[0010] The first aspect of the present invention relates to a hemostatic device for sealing a puncture hole extending from an opening formed in a blood vessel to the skin, characterized in that it comprises: a first cylindrical member extending in an extending direction; a positioning member, at least a portion of which is disposed inside the first cylindrical member and has an extension portion extending in the extending direction and an engaging portion disposed at the front end of the extension portion and capable of engaging with the opening; a hemostatic agent disposed at a position closer to its base end than the engaging portion of the positioning member; and an extrusion member having an extrusion tip located closer to the base end of the hemostatic agent, wherein, when moved relative to the first cylindrical member toward the tip end, the extrusion tip can expel the hemostatic agent from the tip end of the first cylindrical member. The device comprises: a casing housing at least a portion of the first cylindrical member, the positioning member, and the extrusion member; a first operating unit operable to perform a first front-end action and a second front-end action, wherein the first front-end action causes the first cylindrical member and the extrusion member to move relative to the casing and the positioning member toward the front-end side, and the second front-end action causes the extrusion member to move relative to the casing and the positioning member toward the front-end side; and a switching mechanism that restricts the second front-end action at least until the first front-end action ends, and releases the restriction on the second front-end action upon the end of the first front-end action to enable the execution of the second front-end action.

[0011] In the first front-end action, the first cylindrical member and the extrusion member move relative to each other towards the front end. Therefore, the extrusion member allows the hemostatic agent, held within the first cylindrical member, to move towards the front end and approach the engaging portion of the positioning member. Furthermore, in the second front-end action, the extrusion member moves relative to each other towards the front end. Therefore, the extrusion member can extrude the hemostatic agent from within the first cylindrical member towards the front end, thereby sealing the opening of the blood vessel with the hemostatic agent. Here, in the hemostatic device, the second front-end action is restricted until the first front-end action ends. Thus, the hemostatic device restricts the execution of the second front-end action until the first front-end action ends. Therefore, even if the hemostatic device is misoperated, it is possible to prevent the hemostatic agent from being extruded from the first cylindrical member before approaching the engaging portion. Therefore, the user can easily and reliably operate the hemostatic device for sealing the opening of a blood vessel with a hemostatic agent to achieve hemostasis.

[0012] Alternatively, based on the first scheme, the switching mechanism has a first switching part connected to the first cylindrical member and a second switching part connected to the extrusion member. During the first front-end action, the first switching part and the second switching part, which are in contact with each other, move relative to each other according to the operation of the first operating part, thereby causing the first cylindrical member and the extrusion member to move relative to each other towards the front end. During the second front-end action, the second switching part, which is separated from the first switching part, moves relative to each other according to the operation of the first operating part, thereby causing the extrusion member to move relative to each other towards the front end. The hemostatic device can easily implement, through the first switching part and the second switching part, a structure for limiting the second front-end action until the first front-end action is completed, and a structure for releasing the restriction of the second front-end action after the first front-end action is completed.

[0013] Alternatively, based on the first embodiment, the first operating part can be moved relative to the housing along the extending direction. The first front-end action is performed by moving relative to the housing to one side in the extending direction, and the second front-end action is performed by moving further relative to the housing to one side in the extending direction. The user can perform both the first and second front-end actions of the hemostatic device simply by moving the first operating part to one side in the extending direction. Therefore, the user can easily operate the hemostatic device to perform both the first and second front-end actions.

[0014] Alternatively, based on the first scheme, the first operating unit is further operated to perform a base-end action, which moves the first cylindrical member relative to the housing, the positioning member, and the extrusion member toward the base-end side. In the second front-end action, in addition to the extrusion member, the first cylindrical member is further moved relative to the front-end side. The switching mechanism restricts the base-end action until the first front-end action ends, and releases the restriction on the base-end action upon the end of the first front-end action, thus enabling the execution of the base-end action. Similarly, it restricts the second front-end action until the end of the base-end action, and releases the restriction on the second front-end action upon the end of the base-end action, thus enabling the execution of the second front-end action. The hemostatic device moves the hemostatic agent, held within the first cylindrical member, toward the front-end side by sequentially performing the first front-end action, the base-end action, and the second front-end action. Next, the hemostatic device can extrude the hemostatic agent from the first cylindrical member toward the front-end side to seal the opening of the blood vessel. Here, the hemostatic device restricts the movement of the base of the tube until the first tip movement ends, and also restricts the movement of the second tip until the base of the tube movement ends. Thus, the hemostatic device restricts the execution of the second tip movement until the first tip movement ends. Therefore, the user can easily operate the hemostatic device in the order of the first and second tip movements.

[0015] Alternatively, based on the first scheme, the switching mechanism has a first switching part connected to the first cylindrical member and a second switching part connected to the extrusion member. During the first front-end action and the second front-end action, the first switching part and the second switching part, which are in contact with each other, move relative to each other according to the operation of the first operating part, thereby causing the first cylindrical member and the extrusion member to move relative to each other towards the front end side. During the base-end action, the first switching part, which is separated from the second switching part, moves relative to each other according to the operation of the first operating part, thereby causing the first cylindrical member to move relative to each other towards the base-end side. The hemostatic device can easily implement, through the first switching part and the second switching part, a structure for limiting the base-end action until the first front-end action is completed and a structure for limiting the second front-end action until the base-end action is completed.

[0016] Alternatively, based on the first scheme, the first operating part can move relative to the housing along the extending direction, and perform the first front end action by moving relative to the housing by a predetermined amount to one side of the extending direction, perform the tube base end action by moving relative to the housing by the predetermined amount to the other side of the extending direction, and perform the second front end action by moving relative to the housing by the predetermined amount to one side of the extending direction. The user can perform the first front end action, the tube base end action, and the second front end action by simply reciprocating the first operating part along the extending direction by a predetermined amount.

[0017] Alternatively, based on the first embodiment, it may further include: a connecting portion connected to a second cylindrical member, the second cylindrical member internally penetrating at least a portion of each of the first cylindrical member, the positioning member, and the extrusion member; and a second operating portion operable to perform a connecting base end action, the connecting base end action causing the connecting portion to move relative to the housing, the first cylindrical member, the positioning member, and the extrusion member toward the base end side. The switching mechanism further restricts the connecting base end action until the second front end action ends, and releases the restriction on the connecting base end action upon the end of the second front end action, enabling the connecting base end action to be performed. After the hemostatic device seals the opening of the blood vessel with a hemostatic agent during the second front end action, it can move the second cylindrical member relative to the base end side. Through this action, the hemostatic agent can be detached from the front end of the second cylindrical member. Therefore, the hemostatic device can pull the second cylindrical member out of the puncture hole while the hemostatic agent is detached from the front end of the second cylindrical member.

[0018] Alternatively, based on the first solution, a limiting part can be provided. This limiting part is not positioned in the moving area of ​​the connecting part when the connecting part can move, but is positioned in the moving area when the connecting part cannot move. As the extrusion member moves relative to the front end during the second front-end action, the switching mechanism switches the limiting part from being positioned in the moving area to not being positioned in the moving area. By changing the state from where the connecting part cannot move to where it can move towards the base end, the restriction on the movement of the connecting base end is released, allowing the connecting base end action to be performed. The hemostatic device can release the state of restricted movement of the connecting part through a simple operation by the user via the second front-end action.

[0019] Alternatively, in addition to the first embodiment, a third operating unit is provided. This third operating unit is operated to further perform a positioning base end action, which causes the positioning member to move relative to the housing, the first cylindrical member, and the extrusion member toward the base end side. The hemostatic device can easily allow the positioning member to move relative to the first cylindrical member, the second cylindrical member, and the extrusion member independently.

[0020] Alternatively, based on the first scheme, one side of the extension direction is the base end side, and the other side of the extension direction is the front end side. When performing the second front end action, the user pulls the housing towards the base end side to ensure the engaging portion of the positioning member fits tightly against the opening, while simultaneously moving the first operating part relative to the base end side, squeezing the hemostatic agent into the opening of the blood vessel. In other words, when performing both the first and second front end actions, the hemostatic device ensures that the direction of the force acting on the housing is the same as the operating direction of the first operating part. Therefore, the hemostatic device facilitates user operation when performing the second front end action.

[0021] Alternatively, based on the first embodiment, the engaging portion can be a balloon capable of switching between an inflated and a deflated state, with the balloon engaging the opening in the inflated state. The hemostatic device can insert the deflated balloon into the blood vessel through the opening. On the other hand, the hemostatic device can inflate the balloon inserted into the blood vessel, causing the balloon to engage with the opening from the inside of the blood vessel.

[0022] Furthermore, based on the usage of the aforementioned device, if the operation of moving the positioning member in the direction of pulling out from the puncture hole is insufficient in the third step, there is a possibility that the hemostatic agent may be pressed by the positioning element due to the fifth step. In this case, a gap may form between the blood vessel and the positioning element. Therefore, if the hemostatic agent is pressed by the positioning element in the fifth step, there is a possibility that the hemostatic agent may flow into the blood vessel through the gap between the blood vessel and the positioning element.

[0023] Another object of the present invention is to provide a hemostatic device capable of preventing hemostatic agents from flowing into blood vessels.

[0024] The second aspect of the present invention provides a hemostatic device for sealing a puncture hole extending from an opening in a blood vessel to the skin. This hemostatic device is characterized by comprising: a positioning member having an extension portion extending in an extending direction and a first engaging portion disposed at the front end of the extension portion and capable of engaging with the opening; a hemostatic agent disposed at a position closer to its base than the first engaging portion of the positioning member; an extrusion member having an extrusion tip located closer to the base of the hemostatic agent, which, when moved relative to the positioning member towards the tip, allows the hemostatic agent to move towards the tip via the extrusion tip; and a limiting member capable of limiting the extrusion member from moving towards the tip relative to the positioning member. The relative movement of the limiting member; a switching member capable of switching the state of the limiting member to a restricted state that restricts the relative movement of the extrusion member and an allowed state that does not restrict the relative movement of the extrusion member; and a housing that houses at least a portion of the positioning member, the extrusion member, the limiting member, and the switching member, wherein the switching member switches the limiting member to the allowed state when the limiting member is in the restricted state and the positioning member moves relative to the housing toward the front end side, and the limiting member remains in the allowed state after switching from the restricted state to the allowed state, regardless of whether the positioning member moves relative to the housing.

[0025] With the first engaging portion of the positioning part of the hemostatic device engaged at the opening of the blood vessel, the hemostatic agent is moved towards the vicinity of the first engaging portion by moving the extrusion member towards the front end. This seals the puncture hole, including the opening engaged by the first engaging portion, with the hemostatic agent, thereby achieving hemostasis. The limiting member can be switched between a restricted state that restricts the movement of the extrusion member towards the front end and a permitted state that does not restrict movement towards the front end.

[0026] With the first engaging portion of the positioning part engaged with the opening of the blood vessel, and the positioning part moving towards the base of the blood vessel, the first engaging portion adheres tightly to the opening from the inside of the blood vessel. Furthermore, in response to a force acting relative to the positioning member in the direction towards the front end, the positioning member moves relative to the housing towards the front end. When the positioning member moves relative to the housing towards the front end while the limiting member is in a limiting state, the switching member switches the limiting member to an allowing state. In other words, the movement of the extrusion member towards the front end can be achieved with the first engaging portion tightly against the opening. Therefore, in this state, when the extrusion member moves towards the front end and the hemostatic agent moves towards the front end, the hemostatic agent can appropriately seal the puncture hole to achieve hemostasis. Moreover, since the first engaging portion is tightly against the opening, the hemostatic device can prevent the hemostatic agent from flowing into the blood vessel through the gap between the first engaging portion and the opening.

[0027] It should be noted that after the limiting member switches from the limiting state to the allowing state, it remains in the allowing state regardless of whether the positioning member moves relative to the housing. Therefore, the hemostatic device can prevent the limiting member from returning to its initial limiting state after switching from the limiting state to the allowing state. Thus, the user can reliably perform the operation of moving the extrusion member towards the front end after moving the housing relative to the positioning member towards the base end to bring the first engaging portion into contact with the opening. Therefore, the hemostatic device can appropriately perform the operation of moving the extrusion member towards the front end.

[0028] Alternatively, based on the second solution, a first moving member is provided. This first moving member moves relative to the restricting member within a first moving region according to the relative movement of the extrusion member relative to the positioning member. The restricting member has a restricting portion, which is disposed in the first moving region in the restricted state and not disposed in the first moving region in the permitted state. The switching member switches the restricting portion from being disposed in the first moving region to being not disposed in the first moving region, thereby switching the restricting member from the restricted state to the permitted state. In this case, the restricting member can appropriately restrict the relative movement of the extrusion member relative to the housing towards the front end with a simple structure. On the other hand, the switching member can easily switch from the state where the restricting portion is disposed in the first moving region to the state where it is not disposed in the first moving region, corresponding to the case where the positioning member has moved relative to the housing towards the front end. Therefore, the switching member can easily switch the restricting member from the restricted state to the permitted state.

[0029] Alternatively, based on the second scheme, the first moving member includes a second engaging portion that engages with the limiting portion when the limiting portion is positioned in the first moving region, and does not engage with the limiting portion when the limiting portion is not positioned in the first moving region. The limiting member also includes a force-applying portion that applies force to the limiting portion from the state where the limiting portion is engaged with the second engaging portion toward the state where the limiting portion is not engaged with the second engaging portion. The switching member switches from the limiting state to the allowing state by switching from the state where the limiting portion is engaged with the second engaging portion to the state where it is not engaged. In this case, the hemostatic device can switch from the state where the limiting portion is positioned in the first moving region to the state where the limiting portion is not positioned in the first moving region using the force of the force-applying portion. Therefore, the switching member can easily switch the limiting member from the limiting state to the allowing state using the force of the force-applying portion. In addition, the hemostatic device can easily achieve a structure that does not revert to the initial limiting state after switching from the limiting state to the allowing state using the force-applying portion of the limiting member.

[0030] Alternatively, based on the second scheme, the switching member moves relative to the first moving member toward the front end according to the relative movement of the positioning member relative to the housing toward the front end, thereby switching from the state where the limiting part is engaged with the second engaging part to the state where it is not engaged. In this case, the switching member can appropriately perform the switching from the state where the limiting part is engaged with the second engaging part to the state where it is not engaged with the second engaging part in response to the relative movement of the positioning part.

[0031] Alternatively, based on the second scheme, the force-applying part can be a spring. In this case, the force-applying part can easily apply force to the limiting part from the state where the limiting part is engaged with the second engaging part to the state where it is not engaged.

[0032] Alternatively, based on the second scheme, a notification unit can be added, which notifies the configuration corresponding to the amount of relative movement of the positioning member relative to the housing towards the front end. In this case, the hemostatic device can notify the user of the magnitude of the force acting on the positioning member in response to the relative movement of the housing relative to the positioning member towards the base end.

[0033] Alternatively, based on the second solution, a second movable member can be added. This second movable member moves relative to the housing towards the front end side according to the relative movement of the positioning member relative to the housing towards the front end side. The notification unit notifies the configuration corresponding to the amount of movement of the second movable member. In this case, the hemostatic device can achieve the function of notifying the magnitude of the force acting on the positioning unit with a simple structure.

[0034] Alternatively, based on the second solution, a third moving member can be provided. This third moving member moves relative to the housing towards the front end depending on whether the positioning member moves relative to the housing towards the front end. The third moving member has a first magnet, and the housing has a second magnet. The second magnet is opposed to the first magnet when the switching member sets the restricting member to the permitted state. In this case, when the switching member switches the restricting member from the restricted state to the permitted state, the movement of the third moving member is inhibited by the magnetic force acting between the first and second magnets. Therefore, the user can recognize the state where the restricting member has changed to the permitted state and the extrusion member can move relative to the front end.

[0035] Alternatively, based on the second embodiment, the housing may further include a third magnet disposed on the front end side relative to the second magnet, wherein the magnetic force between the first and second magnets when the first and second magnets are facing each other is greater than the magnetic force between the first and third magnets when the first and third magnets are facing each other. In this case, the hemostatic device can prevent the housing from moving excessively towards the base end relative to the positioning member after the extrusion member can move. Therefore, for example, it is possible to prevent the force causing the housing to move towards the base end relative to the positioning member from being too large, thus preventing the first engaging portion from deviating from the opening of the blood vessel.

[0036] Alternatively, based on the second embodiment, the first engaging portion can be a balloon capable of switching between an inflated and a deflated state, with the balloon engaging the opening in the inflated state. In this case, the hemostatic device can insert the deflated balloon into the blood vessel through the opening. On the other hand, the hemostatic device can also engage the balloon with the opening from the inside of the blood vessel by setting the balloon inserted into the blood vessel to an inflated state. Attached Figure Description

[0037] Figure 1 This is a three-dimensional diagram of hemostatic device 10.

[0038] Figure 2 This is a perspective view showing the internal structure of the hemostatic device 10.

[0039] Figure 3 This is a perspective view showing the internal structure of the hemostatic device 10.

[0040] Figure 4 This is a 3D view of the switching component 72B.

[0041] Figure 5 This is a perspective view showing the periphery of the restraint member 72A in the restraint state.

[0042] Figure 6 This is a perspective view showing the periphery of the limiting member 72A in the permitted state.

[0043] Figure 7 This is an exploded perspective view of rod assembly 51.

[0044] Figure 8 Viewed from the direction of the arrow Figure 7 A cross-sectional view along line AA.

[0045] Figure 9 This is a three-dimensional view of the movable component 73A.

[0046] Figure 10 This is a three-dimensional view of the limiting component 72A.

[0047] Figure 11 This is a three-dimensional view of the movable component 73B.

[0048] Figure 12 This is a three-dimensional view of the movable component 74B.

[0049] Figure 13 This is a three-dimensional view of the connecting structural component 71C.

[0050] Figure 14 It is a three-dimensional diagram showing the initial state of a hemostasis operation.

[0051] Figure 15 It is shown Figure 14 A three-dimensional diagram showing the state of each moving component in the given state.

[0052] Figure 16 This is a perspective view showing the case where the limiting member 72A is set to the allowed state.

[0053] Figure 17 This is a three-dimensional diagram showing the first front-end action.

[0054] Figure 18 It is shown Figure 17 A three-dimensional diagram showing the state of each moving component in the given state.

[0055] Figure 19 This is a three-dimensional diagram showing the action of the second front end.

[0056] Figure 20 It is shown Figure 19 A three-dimensional diagram showing the state of each moving component in the given state.

[0057] Figure 21 This is a three-dimensional diagram showing the action of connecting the base end.

[0058] Figure 22 This is a three-dimensional diagram showing the movement of the positioning base.

[0059] Figure 23 This is a three-dimensional diagram of hemostatic device 20.

[0060] Figure 24 This is a perspective view showing the internal structure of the hemostatic device 20.

[0061] Figure 25 This is a perspective view showing the internal structure of the hemostatic device 20.

[0062] Figure 26 This is a 3D view of the switching component 2B.

[0063] Figure 27 This is a three-dimensional view of the second moving component 4A.

[0064] Figure 28This is a three-dimensional view of the first moving component 3A.

[0065] Figure 29 This is a three-dimensional view of the limiting component 2A.

[0066] Figure 30 This is a three-dimensional view of the fourth moving component 3B.

[0067] Figure 31 This is a three-dimensional view of the fifth moving component, 3C.

[0068] Figure 32 This is a three-dimensional view of the connecting part 1C.

[0069] Figure 33 This is a three-dimensional view of the sixth moving component 4B.

[0070] Figure 34 This is a side view of the limiting mechanism 4C in the limiting state.

[0071] Figure 35 This is a side view of the restriction mechanism 4C in the permitted state.

[0072] Figure 36 It is a three-dimensional diagram showing the initial state of a hemostasis operation.

[0073] Figure 37 It is shown Figure 36 A three-dimensional diagram showing the state of each moving component in the given state.

[0074] Figure 38 This is a perspective view showing the case where the limiting member 2A is set to the allowed state.

[0075] Figure 39 It is shown Figure 38 A three-dimensional diagram showing the state of each moving component in the given state.

[0076] Figure 40 This is a three-dimensional diagram showing the first front-end action.

[0077] Figure 41 It is shown Figure 40 A three-dimensional diagram showing the state of each moving component in the given state.

[0078] Figure 42 This is a three-dimensional diagram showing the movement of the cylinder base end.

[0079] Figure 43 It is shown Figure 42 A three-dimensional diagram showing the state of each moving component in the given state.

[0080] Figure 44 This is a three-dimensional diagram showing the action of the second front end.

[0081] Figure 45 It is shown Figure 44 A three-dimensional diagram showing the state of each moving component in the given state.

[0082] Figure 46 This is a three-dimensional diagram showing the action of connecting the base end.

[0083] Figure 47 This is a three-dimensional diagram showing the movement of the positioning base. Detailed Implementation

[0084] Referring to the accompanying drawings, a hemostatic device 10 according to an embodiment of the present invention (first embodiment, see attached drawings) is described below. Figures 1 to 22 ), hemostatic device 20 (second embodiment, see reference) Figures 23 to 47 Hemostatic devices 10 and 20 use a hemostatic agent S to seal the puncture site. The puncture site is formed in the wrist or groin using a specialized needle, for example, in cases where treatment is performed using a known catheter. The puncture site extends from the skin surface to the opening of the blood vessel. Hemostatic devices 10 and 20 prevent blood from flowing from the opening of the blood vessel through the puncture site to the outside of the skin by sealing the puncture site with the hemostatic agent S.

[0085] In the following explanation, Figure 1 The upper, lower, upper left, lower right, lower left, and upper right sides are respectively defined as the upper, lower, left, right, front end, and base side of the hemostatic device 10. Figure 23 The upper, lower, upper left, lower right, lower left, and upper right sides are defined as the upper, lower, left, right, front end, and base end sides of the hemostatic device 20, respectively. The direction in which the hemostatic device 10 or 20 extends between its front end and base end is called the extension direction.

[0086] <First Implementation Method>

[0087] like Figure 2 As shown, the hemostatic device 10 includes a housing 71, a positioning member 8A, an extrusion member 8B, a first cylindrical member 8C, a second cylindrical member 8D, a hemostatic agent S, a limiting member 72A, a switching member 72B, moving members 73A, 73B, and 74B, a connecting part 71C, a limiting mechanism 74C, and a rod assembly 51. Unless otherwise specified, the terms "movement in the extension direction," "movement towards the base end," and "movement towards the front end" for each member refer to the relative movement relative to the housing 71.

[0088] <Shell 71>

[0089] like Figure 1As shown, the housing 71 has a generally box-shaped shape that extends relatively long in its extending direction. The housing 71 is formed by combining a left housing 71A corresponding to the left half and a right housing 71B corresponding to the right half. The housing 71 has protrusions 711A and 711B. Protrusion 711A protrudes upward from the upper side near the base end of the housing 71, and protrusion 711B protrudes downward from the lower side at the center of the housing 71 in its extending direction. Figure 2 As shown, at least a portion of each of the following components are housed within the housing 71: positioning member 8A, extrusion member 8B, first cylindrical member 8C, limiting member 72A, switching member 72B, moving members 73A, 73B, 74B, limiting mechanism 74C, and rod assembly 51.

[0090] like Figure 1 As shown, a first operating part 510 is provided on the upper surface of the housing 71, at a position closer to the front end of the protrusion 711A. The first operating part 510 is a sliding rod operated by the user's finger. The first operating part 510 can move along the extension direction according to the user's operation. The first operating part 510 moves the moving members 51B, 73A, 73B, and 74B (described later) along the extension direction. In addition, the first operating part 510 moves the extrusion member 8B connected to the moving member 51B and the first cylindrical member 8C connected to the moving member 73B along the extension direction.

[0091] A second operating part 520 is provided on the right side of the housing 71, extending in the direction of extension, closer to the base end of the first operating part 510. The second operating part 520 is a sliding rod operated by the user's finger. The second operating part 520 can move in the extension direction according to the user's operation. The second operating part 520 causes the connecting part 71C (described later) and the second cylindrical member 8D connected to the connecting part 71C to move in the extension direction.

[0092] A third operating section 530 is provided at the base end of the housing 71. The third operating section 530 is a handle for the user to hold and operate. The third operating section 530 can move along the extension direction according to the user's operation. The third operating section 530 causes the switching member 72B (described later) and the positioning member 8A connected to the switching member 72B to move along the extension direction.

[0093] <Positioning component 8A>

[0094] Positioning component 8A is used to position the various parts of the hemostatic device 10 relative to the puncture site. Positioning component 8A is a so-called balloon catheter. Figures 1-3 As shown, the positioning member 8A has an extension 81 and a first engaging portion 82. The extension 81 is a cylindrical member extending in the extension direction, corresponding to the conduit. The base end of the extension 81 engages with the switching member 72B described later (see reference). Figure 4The extension 81 extends from the switching member 72B through the interior of the housing 71 toward the front end side and protrudes from the front end of the housing 71 toward the front end side. The extension 81 is movable in the extension direction.

[0095] The first engaging portion 82 is provided on the outer peripheral surface of the front end of the extension 81. The first engaging portion 82 corresponds to the balloon. When compressed fluid is injected into the inner cavity of the extension 81 from a needle hub (not shown) connected to the switching member 72B, the first engaging portion 82 switches from a contracted state to an inflated state. Figures 1-3 The first engaging portion 82 is shown in its expanded state.

[0096] <Extruded Component 8B>

[0097] The extrusion member 8B extrudes the hemostatic agent S (described later) from the first cylindrical member 8C and the second cylindrical member 8D by moving the hemostatic agent S towards the front end. For example... Figures 1-3 As shown, the extrusion member 8B is a cylindrical member extending in the extension direction. The inner diameter of the extrusion member 8B is larger than the outer diameter of the extension 81 of the positioning member 8A. The base end of the extrusion member 8B is connected to the moving member 51B (described later) (see reference). Figure 7 The extrusion member 8B is movable in the extension direction. The extrusion member 8B extends from the moving member 51B through the interior of the housing 71 towards the front end, and protrudes from the front end of the housing 71 towards the front end. The extension 81 of the positioning member 8A (see reference) passes through the inner cavity of the extrusion member 8B. Figure 4 ).

[0098] An extension 81 of the positioning member 8A protrudes from the front end ("extrusion front end 84") of the extrusion member 8B toward the front end side. A first engaging portion 82 of the positioning member 8A is disposed on the front end side of the extrusion front end 84 of the extrusion member 8B.

[0099] <First cylindrical component 8C>

[0100] The first cylindrical component 8C is a sheath that houses the hemostatic agent S, which will be described later. For example... Figures 1-3 As shown, the first cylindrical member 8C is a cylindrical member extending along the extension direction. The inner diameter of the first cylindrical member 8C is slightly larger than the outer diameter of the extrusion member 8B. The base end of the first cylindrical member 8C is connected to the moving member 73B (described later) (see reference). Figure 11The first cylindrical member 8C is movable in the extending direction. The first cylindrical member 8C extends from the moving member 73B through the interior of the housing 71 towards the front end, protruding from the front end of the housing 71 towards the front end. The extension 81 of the positioning member 8A and the extrusion member 8B pass through the inner cavity of the first cylindrical member 8C. That is, a portion of each of the positioning member 8A and the extrusion member 8B is disposed inside the first cylindrical member 8C. The extension 81 of the positioning member 8A protrudes from the front end of the first cylindrical member 8C (referred to as the "first front end 85") towards the front end. The first engaging portion 82 of the positioning member 8A is disposed further towards the front end than the first front end 85 of the first cylindrical member 8C.

[0101] The position of the extrusion tip 84 of the extrusion member 8B relative to the first tip 85 of the first cylindrical member 8C is switched to a state where it is positioned on the base end side as the extrusion member 8B moves relative to the first cylindrical member 8C along the extension direction (see reference). Figures 1-3 ) and the state configured on the front end.

[0102] <Second cylindrical member 8D>

[0103] The second cylindrical member 8D is an insertion sleeve used to insert the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C into the puncture hole. The second cylindrical member 8D is a cylindrical member extending in the extension direction. The inner diameter of the second cylindrical member 8D is larger than the outer diameter of the first cylindrical member 8C. The base end of the second cylindrical member 8D is connected to the connecting portion 71C, which will be described later. The second cylindrical member 8D is movable in the extension direction.

[0104] The extension 81 of the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C pass through the inner cavity of the second cylindrical member 8D. That is, a portion of each of the positioning member 8A's extension 81, the extrusion member 8B, and the first cylindrical member 8C is disposed inside the second cylindrical member 8D. The extrusion tip 84 of the extrusion member 8B and the first tip 85 of the first cylindrical member 8C are disposed closer to the base end than the front end of the second cylindrical member 8D (referred to as the "second tip 86"). The first engaging portion 82 of the positioning member 8A is disposed closer to the front end than the second tip 86 of the second cylindrical member 8D.

[0105] <Hemostatic Agent S>

[0106] A hemostatic agent S remains in the puncture site to seal the opening of the blood vessel. Gel-like polyethylene glycol (PEG), gelatin, collagen, etc., are used as materials for the hemostatic agent S. The hemostatic agent S is disposed inside the first cylindrical member 8C with the extrusion tip 84 of the extrusion member 8B positioned at the base end relative to the first tip 85 of the first cylindrical member 8C. In this case, the hemostatic agent S is disposed in a portion closer to the base end than the first engaging portion 82 of the positioning member 8A and closer to the front end than the extrusion tip 84 of the extrusion member 8B. The hemostatic agent S adheres to the outer peripheral surface of the extension 81 of the positioning member 8A. When the extrusion member 8B moves relative to the first cylindrical member 8C towards the front end, the hemostatic agent S moves towards the front end via the extrusion tip 84. Thus, the hemostatic agent S is extruded from inside the first cylindrical member 8C to the outside via the first tip 85.

[0107] <Switching Component 72B>

[0108] like Figure 3 As shown, a switching member 72B is disposed near the base end inside the housing 71. The switching member 72B switches the limiting member 72A (described later) (see Figure 72B). Figure 10 The switching member 72B moves along the extension direction when the positioning member 8A is applied forcefully. Furthermore, the switching member 72B moves along the extension direction according to the operation of the third operation unit 530, causing the positioning member 8A to move along the extension direction. Figure 4 As shown, the switching member 72B has a base 725 and extension parts 726 and 727.

[0109] The base 725 is generally cuboid in shape. The base 725 has a through hole 725A extending through between the front end face and the base end face in the extending direction. The base end of the extension 81 of the positioning member 8A is connected to the front end face of the base 725. The inner cavity of the extension 81 communicates with the through hole 725A of the base 725.

[0110] The extension portions 726 and 727 are each plate-shaped. The extension portion 726 extends from the upper end of the base 725 toward the front end. Hereinafter, the end of the extension portion 726 at the front end will be referred to as the "front end of the extension portion 726". The extension portion 727 has a first portion 727A, a second portion 727B, a third portion 727C, and a protrusion 727D. The first portion 727A extends from the upper end of the base 725 toward the base end. The second portion 727B extends upward from the base end of the first portion 727A. The third portion 727C extends from the upper end of the second portion 727B toward the front end. The first portion 727A and the third portion 727C are spaced apart vertically. The protrusion 727D protrudes upward from the front end of the third portion 727C. The front end of the extension portion 726 passes through the second engaging portion 730 of the moving member 73A (described later) from the base end. Figure 9 ).

[0111] The third operating part 530 is connected to the base end side surface of the base 725. The third operating part 530 is cylindrical and extends from the base end side surface of the base 725 to the base end side. The inner cavity of the third operating part 530 communicates with the through hole 725A of the base 725. Figures 1-3 As shown, the third operating part 530 protrudes from the base end of the housing 71 towards the base end side. A needle hub (not shown) is connected to the base end of the third operating part 530 via a tube (not shown). Compressed fluid is injected into the inner cavity of the extension 81 of the positioning member 8A through the inner cavity of the third operating part 530 and the through hole 725A of the base 725. The compressed fluid injected into the extension 81 causes the first engaging part 82 of the positioning member 8A to expand, switching the first engaging part 82 from a contracted state to an expanded state.

[0112] The switching component 72B is capable of moving between different positions in the extending direction: a first base position, a first front position, and a first intermediate position. For example... Figure 5 , Figure 6 As shown, when the switching member 72B is positioned in the first intermediate position, the limiting wall 710A formed on the inner wall of the housing 71 near the base end of the protrusion 711A contacts the protrusion 727D of the switching member 72B from the base end side. The first front end position is a position closer to the front end side than the first intermediate position. When the switching member 72B is positioned in the first front end position, the front end of the extension portion 734 of the moving member 73A (described later) contacts the second portion 727B of the switching member 72B from the front end side. The first base end position is a position closer to the base end side than the first intermediate position. When the switching member 72B is positioned in the first base end position, the base end wall 710B on the inner wall of the housing 71 corresponding to the base end contact the base portion 725 of the switching member 72B from the base end side. It should be noted that the switching member 72B is positioned in the first intermediate position in the initial state when the hemostatic device 10 is not in use.

[0113] <Pole Assembly 51>

[0114] like Figure 2 , Figure 3 As shown, a rod assembly 51 is disposed near the upper end of the interior of the housing 71. The rod assembly 51 includes moving members 51A and 51B and a pinion 51C. Moving members 51A and 51B are each approximately rod-shaped with a longer extension in the extending direction and are arranged vertically. Moving member 51B is disposed below moving member 51A. Moving members 51A and 51B extend parallel to each other. The pinion 51C is clamped into the moving members 51A and 51B from the upper and lower sides. The rotation axis of the pinion 51C extends horizontally.

[0115] like Figure 7As shown, a slit-shaped through hole 511 extending vertically is formed in the portion of the moving member 51A near the front end in the extension direction. Figure 8 As shown, a rack 512 is provided inside the through hole 511. Figure 7 As shown, a first operating portion 510 is provided at the upper end of the movable member 51A, closer to the base end side than the through hole 511. The portion of the movable member 51A extending closer to the base end than the first operating portion 510 is referred to as the "base end portion 518". A groove 513 extending in the extending direction is provided on the upper surface of the movable member 51B. Figure 8 As shown, a rack 514 is provided inside the groove 513.

[0116] The pinion 51C is disposed inside the through hole 511 of the movable member 51A and the slot 513 of the movable member 51B. The rotating shaft 519 of the pinion 51C is clamped into the movable members 51A and 51B from the vertical direction and supported in a rotatable manner (see reference). Figure 2 , Figure 3 The teeth of pinion 51C mesh with racks 512 and 514. Moving member 51A moves along the extending direction according to the operation of the first operating part 510, thereby rotating pinion 51C. Corresponding to the rotation of pinion 51C, moving member 51B moves along the extending direction in the opposite direction to moving member 51A. Therefore, when the operation of moving the first operating part 510 towards the front end is performed, moving member 51B moves towards the base end. When the operation of moving the first operating part 510 towards the base end is performed, moving member 51B moves towards the front end.

[0117] A downwardly protruding portion 517 is provided near the base end of the lower surface of the moving member 51B. A through hole 517A extending in the extending direction is formed in the protrusion 517. The base end of the extrusion member 8B is connected to the periphery of the through hole 517A in the front end side surface of the protrusion 517. The extrusion member 8B extends from the protrusion 517 toward the front end side. From the switching member 72B (refer to...) Figure 6 The extension 81 of the positioning member 8A extending towards the front end passes through the through hole 517A from the base end side. The positioning member 8A extends towards the front end relative to the protrusion 517 through the through hole 517A and passes through the inner cavity of the extrusion member 8B.

[0118] When the moving member 51B moves in the extension direction according to the operation of the first operating part 510, the extrusion member 8B also moves in the extension direction. Hereinafter, the position of the moving member 51B that has moved to the side closest to the base end will be referred to as the "second base end position" (see reference). Figures 14-16 (described later), the position of the moving member 51B that is moved to the frontmost side is called the "second front position" (refer to...). Figures 19-22(To be discussed later). The intermediate position between the second base position and the second front position is called the "second intermediate position" (see reference). Figure 17 , Figure 18 (To be described later). The movable component 51B is positioned at the second base end in the initial state without the use of the hemostatic device 10.

[0119] like Figure 7 As shown, a protrusion 515 protruding to the right is provided approximately at the center of the right-side extension direction of the movable member 51B. A protrusion 516 protruding to the left is provided approximately at the center of the left-side extension direction of the movable member 51B (see reference). Figure 20 The protrusion 515 contains a magnet 515A (see reference). Figure 7 The protrusion 516 contains a magnet 516A (see reference). Figure 20 ).

[0120] <Moving Component 73A>

[0121] like Figure 2 , Figure 3 As shown, the movable member 73A is disposed at the front end of the switching member 72B inside the housing 71. The movable member 73A is connected to the end of the movable member 51B of the rod assembly 51 at the base end. The movable member 73A moves in conjunction with the movable member 51B in the extending direction when the movable member 51B moves in the extending direction according to the operation of the first operating part 510.

[0122] The position of the moving member 73A when the moving member 51B is positioned at the second base end position will be referred to as the "third base end position" (see below). Figures 14-16 (described later), the position of the moving member 73A when the moving member 51B is positioned at the second front end position is referred to as the "third front end position" (see reference). Figures 19-22 (To be discussed later). The intermediate position between the third base position and the third front position is called the "third intermediate position" (see reference). Figures 17-18 (To be described later). The movable member 73A is positioned at the third base end in the initial state when the hemostatic device 10 is not in use. The area traversed when the movable member 73A is moved along the extension direction is called the "first moving area".

[0123] like Figure 9 As shown, the movable component 73A has bases 731 and 732, a mounting portion 733, and an extension portion 734.

[0124] Bases 731 and 732 each have a shape formed by connecting multiple cuboids. Base 731 has a second engaging portion 730 at its upper end, which serves as a through hole extending between the front end face and the base end face in the extending direction. A plate-shaped extending portion 734 extends from the upper side of the second engaging portion 730 in base 731 toward the base end face. Base 732 is disposed separately from base 731 toward the front end face. The upper end of base 732 is connected to the lower surface of the base end face of the moving member 51B of the rod assembly 51 (see reference). Figure 5 The mounting portion 733 is plate-shaped and extends in the extending direction. The base end of the mounting portion 733 is connected to the front end side surface of the base portion 731. The front end of the mounting portion 733 is connected to the base end side surface of the base portion 732.

[0125] like Figure 5 As shown, with the moving member 73A positioned at the third base end position, the extension portion 726 of the switching member 72B, positioned at the first intermediate position, passes through the second engaging portion 730 from the base end side. Furthermore, the limiting portion 723 of the limiting member 72A, described later, can pass through the second engaging portion 730 from the front end side and engage. Additionally, the extension portion 734 of the moving member 73A passes through the gap between the first portion 727A and the third portion 727C of the extension portion 727 of the switching member 72B from the front end side. It should be noted that the switching member 72B moves from the first intermediate position toward the front end side until the second portion 727B contacts the front end of the extension portion 734 of the moving member 73A, thereby switching from the first intermediate position to the first front end position.

[0126] like Figure 6 As shown, in the moving component 73A (refer to...) Figure 5 In the state of being positioned at the third front end, the moving member 73A separates from the switching member 72B towards the front end. In this case, the extension portion 726 of the switching member 72B does not penetrate the second engaging portion 730 of the moving member 73A. Furthermore, the extension portion 734 of the moving member 73A (see...) Figure 5 The gap between the first portion 727A and the third portion 727C of the extension 727 of the switching member 72B is not penetrated. The switching member 72B elastically deforms in this state such that the gap between the first portion 727A and the third portion 727C decreases, allowing the protrusion 727D to disengage from the limiting wall 710A. With the protrusion 727D disengaged from the limiting wall 710A, the switching member 72B moves from the first intermediate position toward the base end side until the base 725 contacts the base end wall 710B of the housing 71. Thus, the switching member 72B switches from the first intermediate position to the first base end position.

[0127] <Restriction Component 72A>

[0128] like Figure 2 , Figure 3 As shown, a limiting member 72A is disposed below the protrusion 711A of the housing 71. The limiting member 72A is subject to the force-applying part 724 described later (see reference). Figure 10 It moves in the vertical direction due to the force of the action of the force. For example Figure 10 As shown, the limiting member 72A has a base 721, an extension portion 722, a limiting portion 723, and a force-applying portion 724.

[0129] The base 721 has a first portion 721A, a second portion 721B, 721C, and a third portion 721D. The first portion 721A has a surface orthogonal to the extending direction on its base end side. The second portion 721B extends from the right end of the first portion 721A towards the front end side, and has a surface orthogonal to the left-right direction on its right side. The second portion 721C extends from the left end of the first portion 721A towards the front end side, and has a surface orthogonal to the left-right direction on its right side. The third portion 721D is disposed between the front ends of the second portions 721B and 721C respectively. The force-applying portion 724 is a tension coil spring. The lower end of the force-applying portion 724 is connected to the base 721 inside a hole formed by the surfaces of the first portion 721A, the second portion 721B, 721C, and the third portion 721D respectively. The upper end of the force-applying portion 724 is connected to the protrusion 711A of the housing 71 (see reference). Figures 1-3 The upper inner wall is connected to the limiting member 72A. An upward force is applied to the limiting member 72A according to the elastic force of the force-applying part 724. The extension part 722 extends downward from the base 721. The limiting part 723 is plate-shaped and protrudes from the lower end of the extension part 722 toward the base end.

[0130] like Figure 5 As shown, the limiting part 723 is disposed in the first moving region of the moving member 73A in a state where the base 721 has moved downward against the force applied by ... Figure 7 The movement of the moving member 51B is also restricted. Hereinafter, the state in which the restricting part 723 engages with the second engaging part 730 of the moving member 73A to restrict the movement of the moving member 51B is referred to as the "restricted state".

[0131] When the limiting member 72A is in the limiting state, and the switching member 72B moves towards the front end from the first intermediate position toward the first front end position, the extension portion 726 of the switching member 72B protrudes towards the front end from the second engaging portion 730 of the moving member 73A. This releases the engagement state of the limiting portion 723 with respect to the second engaging portion 730 of the moving member 73A. In this case, the base 721 of the limiting member 72A moves upward under the force of the force-applying portion 724 (see reference). Figure 6 Therefore, the limiting part 723 of the limiting member 72A is not disposed in the first moving area of ​​the moving member 73A. In this state, the movement of the moving member 73A is not limited by the limiting part 723, so the moving member 73A can move in the extending direction in the first moving area. As a result, the moving member 51B connected to the moving member 73A can also move in the extending direction. Hereinafter, the state in which the limiting part 723 is not engaged with the second engaging part 730 of the moving member 73A and the movement of the moving member 51B is not limited is referred to as the "allowed state".

[0132] <Moving Component 73B>

[0133] like Figure 3 As shown, a moving member 73B is disposed on the lower side of the rod assembly 51 inside the housing 71. The moving member 73B moves in the extending direction according to the operation of the first operating part 510, causing the first cylindrical member 8C to move in the extending direction. The position of the moving member 73B that has moved to the side closest to the base end will be referred to as the "fourth base end position" (see reference). Figures 14-16 The position of the moving component 73B, which is moved to the frontmost side, is called the "fourth front position" (see reference). Figures 17-22 The movable component 73B is positioned at the fourth base position in the initial state when the hemostatic device 10 is not in use. Figure 11 As shown, the movable member 73B has a base 736 and extended portions 737 and 738.

[0134] The base 736 is a generally rectangular parallelepiped that is longer in the left-right direction. An extension portion 737 protrudes upwards from the center of the upper end of the base 736 in the left-right direction. An extension portion 738 protrudes downwards from the center of the lower end of the base 736 in the left-right direction. The extension portion 738 is disposed on the protrusion 711B of the housing 71 (see reference). Figures 1-3The extension portion 738 is located at the base end of the protrusion 711B and moves along the extension direction within the internal space of the protrusion 711B. When the moving member 73B is located at the fourth base end position, the extension portion 738 is located at the front end of the internal space of the protrusion 711B. A magnet 739A is built into the base 736 in the portion 736A to the right of the extension portions 737 and 738, and a magnet 739B is built into the portion 736B to the left of the extension portions 737 and 738.

[0135] A through hole 736C extending in the extension direction is formed at the center of the base 736. The base end of the first cylindrical member 8C is connected to the periphery of the through hole 736C in the front end side face of the base 736. The first cylindrical member 8C extends from the base 736 toward the front end side. From the switching member 72B (refer to...) Figure 6 The extension 81 of the positioning member 8A extending towards the front end and the extension of the moving member 51B (see reference) Figure 7 The extrusion member 8B, extending towards the front end, passes through the through hole 736C from the base end side. The extension 81 of the positioning member 8A and the extrusion member 8B pass through the through hole 736C and extend towards the front end compared to the base 736, and pass through the inner cavity of the first cylindrical member 8C.

[0136] <Moving Component 74B>

[0137] like Figure 2 , Figure 3 As shown, the movable member 74B is disposed inside the housing 71 at a position closer to the front end than the movable member 73B. The movable member 74B moves in the extending direction according to the operation of the first operating unit 510, switching the limiting mechanism 74C (described later) (see reference). Figure 13 The position of the moving member 74B, which is moved to the side closest to the base end, will be referred to as the "fifth base end position" (see reference). Figures 14-18 The position of the moving component 74B, which is moved to the frontmost side, is called the "fifth front position" (see reference). Figures 19-22 The movable component 74B is positioned at the fifth base position in the initial state when the hemostatic device 10 is not in use (see reference). Figures 14-18 ).like Figure 12 As shown, the movable member 74B has a base 745 and an extension 746.

[0138] The base 745 is a generally rectangular parallelepiped that is longer in the left-right direction. A downwardly recessed portion is provided at the center of the upper end of the base 745 in the left-right direction. A magnet 740A is housed in the portion 745A to the right of the recess, and a magnet 740B is housed in the portion 745B to the left of the recess. The extension 746 is plate-shaped and extends from the left end of the base 745 towards the front end. The upper end of the extension 746 has a first portion 746A, a second portion 746B, and a third portion 746C. The first portion 746A extends from the front end of the extension 746 toward the base end in the extending direction. The second portion 746B extends obliquely upward from the base end of the first portion 746A toward the base end. The third portion 746C extends from the base end of the second portion 746B toward the base end in the extending direction.

[0139] A through hole 745C extending in the extension direction is formed on the lower side of the recess in the base 745. From the switching member 72B (refer to...) Figure 6 The extension 81 of the positioning member 8A extending towards the front end, and the extension of the moving member 51B (see reference) Figure 7 The extrusion member 8B extends towards the front end and the moving member 73B (see reference) Figure 11 The first cylindrical member 8C, extending towards the front end, passes through the through hole 745C from the base end side. The extension 81 of the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C pass through the through hole 745C and extend towards the front end side compared to the base 745.

[0140] <Connector 71C>

[0141] like Figure 3 As shown, a connecting portion 71C is provided at the front end of the housing 71. The connecting portion 71C moves according to the operation of the second operating portion 520, causing the second cylindrical member 8D to move along the extending direction. Hereinafter, the position where the connecting portion 71C moves to the side closest to the base end will be referred to as the "sixth base end position" (see reference). Figures 14-20 The position of the connecting part 71C, which is moved to the frontmost side, is called the "sixth front position" (see reference). Figure 21 , Figure 22 The movement of the connecting part 71C can be achieved by the limiting mechanism 74C described later (see reference). Figure 13 (Restrictions.) Figure 3 As shown, the connecting part 71C has a cylindrical part 716, an extended part 717, and a protrusion 718.

[0142] The cylindrical portion 716 is a cylindrical member having an inner cavity extending in the extending direction. The cylindrical portion 716 has a front cylindrical portion 716A and a base cylindrical portion 716B arranged in the extending direction. The front cylindrical portion 716A is disposed on the front end side relative to the base cylindrical portion 716B. The diameter of the front cylindrical portion 716A is larger than the diameter of the base cylindrical portion 716B. A connector 88 (see reference) is used at the front end of the front cylindrical portion 716A. Figure 14 The second cylindrical member 8D is connected in a detachable manner. The extension 81 of the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C extend toward the front end through the inner cavity of the second cylindrical member 8D.

[0143] The extension portion 717 is elongated and plate-shaped. It extends from the upper end of the front end cylindrical portion 716A towards the base end. A protrusion 718 protrudes to the right from the base end of the base end cylindrical portion 716B. The base end of the extension portion 717 connects to the protrusion 718. The base ends of both the base end cylindrical portion 716B and the extension portion 717 pass through a through hole provided at the front end of the housing 71 from the front end. When the connecting portion 71C moves towards the front end, the protrusion 718 hooks onto the inner wall of the housing 71. This prevents the connecting portion 71C from detaching from the housing 71.

[0144] like Figure 2 As shown, a plate-shaped mounting portion 52 is connected to the right end of the protrusion 718. The mounting portion 52 extends from the protrusion 718 toward the base end. A second operating portion 520 is connected to the base end of the mounting portion 52. The force corresponding to the operation of the second operating portion 520 is transmitted to the connecting portion 71C via the mounting portion 52, causing the connecting portion 71C to move in the extending direction.

[0145] <Restricted Agency 74C>

[0146] like Figure 13 As shown, the limiting mechanism 74C is disposed inside the housing 71 at the base end cylindrical portion 716B of the connecting portion 71C (see reference). Figures 1-3 On the left side and in the extension 746 of the moving member 74B (see reference) Figure 12 The upper side of the housing 747. The limiting mechanism 74C has a limiting part 747 and a force-applying part 748. The limiting part 747 is generally rectangular. The force-applying part 748 is disposed on the upper side of the limiting part 747. The force-applying part 748 is a compression coil spring. The upper end of the force-applying part 748 is connected to the inner wall of the housing 71. The lower end of the force-applying part 748 is connected to the upper end of the limiting part 747. A downward force acts on the limiting part 747 according to the elastic force of the force-applying part 748.

[0147] Figure 13The diagram shows the state where the movable member 74B is positioned at the fifth base end position. In this state, the limiting portion 747 of the limiting mechanism 74C contacts the first portion 746A of the extension 746 of the movable member 74B. The limiting portion 747 presses against the first portion 746A of the extension 746 from above by the force applied by the force-applying portion 748. Hereinafter, the vertical position of the limiting portion 747 in contact with the first portion 746A of the extension 746 of the movable member 74B will be referred to as the "limiting position". The limiting portion 747, positioned in the limiting position, contacts the base end side surface of the protrusion 718 of the connecting portion 71C, which is positioned at the sixth front end position. In this case, the limiting portion 747 is positioned in the moving area (hereinafter referred to as the "second moving area") in the extending direction of the protrusion 718 of the connecting portion 71C, thus limiting the movement of the connecting portion 71C towards the base end side. It should be noted that the limiting part 747 is configured in the limiting position in the initial state when the hemostatic device 10 is not in use.

[0148] During the movement of the movable member 74B from the fifth base position to the fifth front position, the limiting part 747 of the limiting mechanism 74C sequentially contacts the first part 746A, the second part 746B, and the third part 746C of the extension 746 of the movable member 74B, and moves upward against the force of the force-applying part 748. When the movable member 74B is positioned at the fifth front position, the limiting part 747 of the limiting mechanism 74C contacts the third part 746C of the extension 746 of the movable member 74B. The vertical position of the limiting part 747 in contact with the third part 746C of the extension 746 of the movable member 74B will be referred to as the "allowed position". The limiting part 747 positioned in the allowed position is positioned higher than the limiting part 747 positioned in the restricted position. The limiting part 747 in the allowed position is positioned higher than the second moving area. In this case, the movement of the connecting part 71C in the extending direction is not limited by the limiting part 747.

[0149] <Hemostasis Techniques>

[0150] Reference Figures 14-22 This describes the action of using hemostatic instrument 10 and hemostatic agent S to stop bleeding at the puncture site. This is done through puncture site 61 (refer to...). Figure 14 During treatment (etc.), the guidewire passes through the puncture port 61 into the blood vessel 6 (refer to...). Figure 14 (etc.) inside. Next, the second cylindrical member 8D passes through the puncture hole 61 along the guide wire. The second front end 86 of the second cylindrical member 8D passes through the opening 6A formed on the blood vessel 6 (refer to Figure 14 (etc.) are placed inside blood vessel 6.

[0151] After treatment, if Figure 14 , Figure 15As shown, a hemostatic device 10 is prepared as follows: the limiting member 72A is in a limiting state and the switching member 72B is arranged in the first intermediate position; the moving member 51B of the rod assembly 51 is arranged in the second base position; the moving member 73A is arranged in the third base position; the moving member 73B is arranged in the fourth base position; the moving member 74B is arranged in the fifth base position; and the connecting part 71C is arranged in the sixth front end position.

[0152] A portion 736A of the moving member 73B is disposed below the protrusion 515 of the moving member 51B of the rod assembly 51. A magnet 515A (see reference) is built into the protrusion 515. Figure 7 ) and the magnet 739A built into part of 736A (refer to Figure 11 The magnetic forces acting between them attract each other. Similarly, although not shown, a portion 736B of the moving member 73B is disposed on the protrusion 516 of the moving member 51B of the rod assembly 51 (see reference). Figure 20 The lower side of (refer to) Figure 11 Magnet 516A (see reference) is built into protrusion 516. Figure 20 ) and the magnet 739B built into part of 736B (refer to Figure 11 The magnetic force between them is the force that attracts each other in the direction of attraction.

[0153] like Figure 15 As shown, when the hemostatic device 10 is in the above-described state, the limiting member 72A becomes a limiting state, therefore the limiting part 723 of the limiting member 72A (refer to...) Figure 10 The second engaging portion 730 (see reference) engages with the moving member 73A from the front end side. Figure 9 The extrusion member 8B (see reference 723) is positioned in the first moving region of the moving member 73A. Therefore, the movement of the moving member 73A in the extending direction is restricted by the limiting part 723. Thus, the extrusion member 8B (see reference 723) connected to the moving member 51B via the moving member 73A... Figure 7 The movement of the connecting part 71C, which is located at the fifth base end position, is also restricted. Furthermore, since the moving member 74B is positioned at the fifth base end position, the restricting part 747 of the restricting mechanism 74C is positioned in a restricted position. Therefore, the movement of the connecting part 71C, located at the sixth front end position, towards the base end is restricted by the restricting mechanism 74C.

[0154] <Pre-action>

[0155] like Figure 14As shown, the positioning member 8A, hemostatic agent S, extrusion member 8B, and first cylindrical member 8C of the hemostatic device 10 pass through the second cylindrical member 8D, which is disposed in the puncture hole 61. Then, the connector 88 of the second cylindrical member 8D is connected to the connecting portion 71C of the hemostatic device 10. The first engaging portion 82 of the positioning member 8A protrudes from the second front end 86 of the second cylindrical member 8D towards the front end and is disposed within the blood vessel 6. The hemostatic agent S, extrusion member 8B, and first cylindrical member 8C are disposed within the second cylindrical member 8D. From the first engaging portion 82 of the positioning member 8A toward the base end, the second front end 86 of the second cylindrical member 8D, the first front end 85 of the first cylindrical member 8C, the hemostatic agent S, and the extrusion front end 84 of the extrusion member 8B are arranged sequentially.

[0156] Next, as compressed fluid is supplied from the needle hub, the first engaging portion 82 of the positioning member 8A expands within the blood vessel 6. In this state, the user grasps the housing 71 of the hemostatic device 10 and applies force, causing the housing 71 to move towards the side (base end side) where the second cylindrical member 8D is pulled out from the puncture hole 61. As a result, the first engaging portion 82, which expands within the blood vessel 6, engages from the inside with the opening 6A formed on the blood vessel 6. The user further moves the housing 71 towards the base end side. This causes the positioning member 8A to move towards the front end side relative to the housing 71, as... Figure 14 , Figure 15 As shown, the switching member 72B, which is connected to the positioning member 8A, also moves towards the front end relative to the moving member 73A (see reference). Figure 14 , Figure 15 Arrow Y11).

[0157] When the switching member 72B moves from the first intermediate position to the first front position, the extension part 726 of the switching member 72B (see reference) Figure 4 From the second engaging part 730 of the moving member 73A (refer to) Figure 9 It protrudes towards the front end. As a result, the engagement of the limiting part 723 with the second engaging part 730 of the moving member 73A is released. In this case, as... Figure 16 As shown, the limiting member 72A is based on the force-applying part 724 (see reference). Figure 10 The moving member 72A moves upward under the force of the moving member 73A (refer to arrow Y12), and the limiting member 72A switches from the limiting state to the allowing state. The limiting part 723 is not disposed in the first moving area of ​​the moving member 73A, and the moving member 73A becomes capable of moving in the first moving area.

[0158] It should be noted that after the position of the limiting member 72A is temporarily switched from the limiting state to the allowing state, it will not return to the initial limiting state even if the force applied by the user to the housing 71 is released. That is, when the engagement between the limiting part 723 and the moving member 73A is temporarily released and the limiting member 72A becomes the allowing state, the limiting member 72A remains in the allowing state and will not return to the initial limiting state.

[0159] <First Front-End Action>

[0160] In the hemostatic device 10, when the restricting member 72A is in the permitted state, the movable member 73A can move along the extension direction. For example... Figure 17 As shown, in this state, the user moves the first operating part 510 towards the base end (refer to arrow Y13). As the pinion 51C of the lever assembly 51 rotates, the moving member 51B moves from the second base end position to the second intermediate position towards the front end (refer to arrow Y14). Additionally, the magnet 515A (refer to...) Figure 7 ), 739A (reference) Figure 11 Between and magnet 516A (refer to) Figure 20 ), 739B (reference) Figure 11 The magnetic forces acting between the two components in the direction of mutual attraction. Therefore, the moving component 73B moves from the fourth base position to the fourth front position (refer to arrow Y15) while in contact with the moving component 51B, according to the movement of the moving component 51B.

[0161] The movable member 51B moves towards the front end, and the protrusion 517 (see reference) Figure 7 The extrusion member 8B, which is connected to the front end, moves towards the front end. Additionally, as the moving member 73B moves towards the front end, the base 736 (see reference)... Figure 11 The first cylindrical member 8C, connected to the first operating part 725, moves towards the front end. It should be noted that since the switching member 72B remains in the first front end position, the positioning member 8A connected to the base 725 does not move even when the first operating part 510 is operated. That is, the extrusion member 8B and the first cylindrical member 8C move relative to the housing 71 and the positioning member 8A towards the front end. The above-mentioned action occurring with the operation of the first operating part 510 will be referred to as the "first front end action." During the first front end action, the disengagement of the moving members 51B and 73B is restricted by magnets 515A, 516A, 739A, and 739B, thus restricting only the positioning member 8A from moving towards the front end. Through the first front end action, the hemostatic agent S, positioned near the first front end 85 within the first cylindrical member 8C, is pressed towards the front end by the extrusion member 8B and moves towards the second front end 86 of the second cylindrical member 8D.

[0162] Corresponding to the movement of the movable member 73B from the fourth base end position toward the front end side, the extension portion 738 moves along the internal space of the protrusion 711B of the housing 71 from near the base end position toward the front end side. When the movable member 73B moves to the fourth front end position, the extension portion 738 is positioned near the front end of the internal space of the protrusion 711B. Figure 18 As shown, the protrusions 515 and 516 of the moving member 51B and the moving member 73B contact the base end side of the moving member 74B disposed at the fifth base end position. It should be noted that further movement of the moving member 73B towards the front end side is suppressed by the extending portion 738 contacting the front end of the inner wall of the protrusion 711B from the base end side (see reference). Figure 17 ).

[0163] The base end portion 518 of the moving member 51A of the lever assembly 51, which is located on the base end side of the first operating part 510, is disposed below the restricting member 72A in the permitted state. The base end portion 518 prevents the restricting member 72A from moving downward from the permitted state and returning to the initial restricted state.

[0164] The movable member 73A moves from the third base position to the third intermediate position according to the movement of the movable member 51B. The extension portion 734 of the movable member 73A switches from a state in which it passes through the gap between the first portion 727A and the third portion 727C of the extension portion 727 of the switching member 72B to a state where it does not pass through. The second portion 727B of the extension portion 727 of the switching member 72B can elastically deform in such a way that the gap between the first portion 727A and the third portion 727C becomes smaller.

[0165] <Second Front-End Action>

[0166] like Figure 19 As shown, the user then moves the first operating unit 510 further towards the base end (refer to arrow Y16). Due to the rotation of the pinion 51C of the lever assembly 51, the moving member 51B moves from the second intermediate position to the second front end position (refer to arrow Y17). It should be noted that the movement of the moving member 73B towards the front end is suppressed by the extension portion 738 contacting the inner wall of the protrusion 711B from the base end side. The moving member 73B is maintained at the fourth front end position. Therefore, the moving member 51B separates from the moving member 73B and moves towards the front end according to the operation of the first operating unit 510. Furthermore, according to the movement of the moving member 51B, the moving member 73A connected to the moving member 51B also moves from the third intermediate position to the third front end position.

[0167] The movable member 51B moves towards the front end, and the protrusion 517 (see reference) Figure 7The extrusion member 8B, which is connected to the moving member 73B, moves towards the front end. Meanwhile, the base 736 (see reference 73B) of the moving member 73B... Figure 11 The first cylindrical member 8C, which is connected to the front end, does not move towards the front end. Furthermore, since the switching member 72B is maintained in the first front end position, it is connected to the base 725 (see reference 725). Figure 4 The positioning member 8A connected to the first operating unit 510 does not move towards the front end. That is, the extrusion member 8B moves relative to the housing 71, the positioning member 8A, and the first cylindrical member 8C towards the front end. Hereinafter, the above-described action occurring with the operation of the first operating unit 510 will be referred to as the "second front end action." In the second front end action, since the moving members 51B and 73B are allowed to disengage, only the positioning member 8A can move towards the front end. That is, the moving members 51B and 73B restrict the second front end action until the first front end action ends, and the restriction on the second front end action is lifted upon the end of the first front end action, allowing the second front end action to be performed.

[0168] Through the second front-end action, the hemostatic agent S is extruded through the extrusion front end 84 of the extrusion member 8B toward the front end 85 of the first cylindrical member 8C. The hemostatic agent S is pressed from the base end side against the first engaging portion 82 of the positioning member 8A near the second front end 86 of the second cylindrical member 8D. Thus, the hemostatic agent S seals the opening 6A of the blood vessel 6 that is engaged by the first engaging portion 82.

[0169] like Figure 20 As shown, according to the movement of the moving member 51B towards the second front end position via the second front end action, the moving member 74B presses towards the front end side via the protrusions 515 and 516 of the moving member 51B, moving from the fifth base end position towards the front end position to the fifth front end position (refer to arrow Y18). Figure 19 Therefore, the limiting part 747 of the limiting mechanism 74C moves from the limiting position (see reference). Figure 13 To the permitted location (refer to) Figure 20 The limiting part 747 changes from being disposed in the second moving area to not being disposed in the second moving area. Therefore, the connecting part 71C can move from the sixth front end position toward the sixth base end position. That is, depending on the case that the extrusion member 8B moves toward the front end side during the second front end operation, the connecting part 71C becomes a state in which it can move relative to the housing 71, the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C toward the base end side.

[0170] <Connecting base actions>

[0171] like Figure 21As shown, the user then moves the second operation unit 520 towards the base end (refer to arrow Y19). It should be noted that the second operation unit 520 is connected to the connecting unit 71C via the mounting unit 52. Furthermore, the connecting unit 71C can be moved towards the base end from the sixth front end position to the sixth base end position by the second front end movement. Therefore, according to the operation of the second operation unit 520, the connecting unit 71C moves from the sixth front end position to the sixth base end position (refer to arrow Y20). Hereinafter, the above-mentioned movement accompanying the operation of the second operation unit 520 will be referred to as the "connecting base end movement." That is, the connecting base end movement is restricted by the restriction unit 747 being positioned in a restricted position until the second front end movement ends. On the other hand, when the restriction unit 747 is switched to the permitted position upon the end of the second front end movement, the connecting base end movement is unrestricted and can be performed.

[0172] By connecting the base end, the second cylindrical member 8D, connected to the connecting part 71C, moves towards the base end. On the other hand, the positioning member 8A connected to the switching member 72B, the extrusion member 8B connected to the moving member 51B, and the first cylindrical member 8C connected to the moving member 73B do not move. That is, the second cylindrical member 8D moves relative to the housing 71, the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C towards the base end. In this case, the second tip 86 of the second cylindrical member 8D separates from the hemostatic agent S, which is in a state of blocking the opening 6A of the blood vessel 6, towards the base end.

[0173] <Location Baseline Action>

[0174] Next, the user draws the compressed fluid supplied to the first engaging portion 82 through the needle seat, causing the first engaging portion 82 to contract. Then, the user... Figure 22 The operation shown is to move the third operating part 530 towards the base end side with respect to the housing 71 (refer to arrow Y21). It should be noted that the third operating part 530 is connected to the switching member 72B. The extension portion 734 of the moving member 73A is positioned so as not to penetrate the gap between the first portion 727A and the third portion 727C of the switching member 72B. Therefore, depending on the operation of the third operating part 530, the switching member 72B elastically deforms such that the gap between the first portion 727A and the third portion 727C decreases, and the protrusion 727D (refer to...) Figure 5 , Figure 6 It can be removed from the limiting wall 710A (refer to) Figure 5 , Figure 6The switching member 72B moves from the first intermediate position toward the base end side at the protrusion 727D in a state of disengagement from the restricting wall 710A until the base 725 contacts the base end wall 710B of the housing 71. As a result, the switching member 72B moves from the first intermediate position toward the base end position, and the positioning member 8A connected to the switching member 72B also moves toward the base end side. On the other hand, the extrusion member 8B connected to the moving member 51B, the first cylindrical member 8C connected to the moving member 73B, and the second cylindrical member 8D connected to the connecting portion 71C do not move. That is, the positioning member 8A moves relative to the housing 71, the extrusion member 8B, the first cylindrical member 8C, and the second cylindrical member 8D toward the base end side. Hereinafter, the above-described action accompanying the operation of the third operating unit 530 will be referred to as the "positioning base end action".

[0175] By locating the base end, the first engaging portion 82 of the positioning member 8A moves toward the base end side of the extrusion front end 84 of the extrusion member 8B and is positioned within the extrusion member 8B. Afterwards, the positioning member 8A, the hemostatic agent S, the extrusion member 8B, the first cylindrical member 8C, and the second cylindrical member 8D are pulled out from the puncture hole 61.

[0176] <Function and Effects of the First Embodiment>

[0177] As shown above, in the hemostatic device 10, the first front-end action is performed with the first engaging portion 82 of the positioning member 8A engaged with the opening 6A of the blood vessel 6. During the first front-end action, the first cylindrical member 8C and the extrusion member 8B move relative to the housing 71 towards the front end. This allows the hemostatic device 10 to move the hemostatic agent S towards the front end while it is held within the first cylindrical member 8C, and to approach the first engaging portion 82 of the positioning member 8A. During the second front-end action, the extrusion member 8B moves relative to the housing 71 and the first cylindrical member 8C towards the front end. This allows the hemostatic device 10 to extrude the hemostatic agent S from the first cylindrical member 8C via the extrusion member 8B, exposing it near the first engaging portion 82. Furthermore, during the second front-end action, the hemostatic agent S is advanced by the extrusion member 8B to a position contacting the first engaging portion 82, and the hemostatic agent S seals the puncture hole 61, including the opening 6A of the blood vessel 6.

[0178] In the hemostatic device 10, the second front-end action is restricted until the first front-end action ends. Thus, the hemostatic device 10 restricts the execution of the second front-end action before the first front-end action ends. Therefore, even in the event of misoperation, the hemostatic device 10 can prevent the hemostatic agent S from being squeezed out of the first cylindrical member 8C before it approaches the first engaging portion 82. Therefore, the user can easily and reliably perform the operation of the hemostatic device 10, which uses the hemostatic agent S to seal the opening 6A of the blood vessel 6 to achieve hemostasis.

[0179] The hemostatic device 10 has a movable member 73B connected to a first cylindrical member 8C and a movable member 51B connected to an extrusion member 8B. During a first front-end action, the movable members 51B and 73B move towards the front end while in contact with each other. This causes the extrusion member 8B and the first cylindrical member 8C to also move towards the front end. Conversely, during a second front-end action, the movable member 51B moves towards the front end while separated from the movable member 73B. This causes the extrusion member 8B to move towards the front end. Therefore, the hemostatic device 10 can easily achieve the following structure using the movable members 51B and 73B: a structure for limiting the second front-end action until the first front-end action is completed, and a structure for releasing the limitation of the second front-end action after the first front-end action is completed.

[0180] In the hemostatic device 10, a first front-end action is performed by moving the first operating part 510 to one side (base end side) in the extending direction. Furthermore, in the hemostatic device 10, a second front-end action is performed by further moving the first operating part 510 to one side (base end side) in the extending direction. Therefore, the user can perform both the first and second front-end actions of the hemostatic device 10 simply by moving the first operating part 510 in the common direction (one side (base end side) in the extending direction). Thus, the user can easily operate the hemostatic device 10 to perform both the first and second front-end actions.

[0181] The second cylindrical member 8D is connected to a connecting portion 71C provided at the front end of the housing 71. The positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C pass through the interior of the second cylindrical member 8D. When the second front-end action is performed, the opening 6A of the blood vessel 6 is sealed by the hemostatic agent S. Simultaneously, the connecting portion 71C becomes movable relative to the housing 71, the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C towards the base end. In this case, the hemostatic device 10 can move the second cylindrical member 8D towards the base end by performing the subsequent base-end connection action. It should be noted that the hemostatic agent S is disengaged from the second front end 86 of the second cylindrical member 8D by the base-end connection action. Therefore, the hemostatic device 10 can pull the second cylindrical member 8D out of the puncture hole 61 while the hemostatic agent S is disengaged from the second front end 86 of the second cylindrical member 8D.

[0182] The limiting part 747 of the limiting mechanism 74C restricts the movement of the connecting part 71C when it is positioned in the second moving region of the connecting part 71C. The limiting part 747 of the limiting mechanism 74C also allows the connecting part 71C to move when it is not positioned in the second moving region of the connecting part 71C. When the extrusion member 8B moves towards the front end during the second front-end operation, the limiting mechanism 74C switches the limiting part 747 from being positioned in the second moving region to not being positioned in the second moving region. As a result, the connecting part 71C changes from a state where it cannot move towards the base end to a state where it can move towards the base end. Therefore, the hemostatic device 10 can be linked to the second front-end operation used to move the extrusion member 8B, releasing the movement restriction of the connecting part 71C.

[0183] During the positioning base action performed according to the operation of the third operating part 530, the hemostatic device 10 moves the positioning member 8A relative to the first cylindrical member 8C, the second cylindrical member 8D, and the extrusion member 8B towards the base end. Therefore, after the opening 6A of the blood vessel 6 is sealed with the hemostatic agent S, the first engaging portion 82 of the positioning member 8A moves towards the base end relative to the hemostatic agent S. The hemostatic device 10 allows the positioning member 8A to move towards the base end independently of the first cylindrical member 8C, the second cylindrical member 8D, and the extrusion member 8B. Therefore, the hemostatic device 10 can easily pull the first engaging portion 82 out of the blood vessel 6.

[0184] When performing the first and second front-end actions, the first operating part 510 moves towards the base end. Therefore, when performing the second front-end action, the user pulls the housing 71 towards the base end while simultaneously moving the first operating part 510 towards the base end to ensure that the first engaging portion 82 of the positioning member 8A is tightly against the opening 6A of the blood vessel 6, thereby squeezing the hemostatic agent S into the opening 6A. In other words, the hemostatic device 10 ensures that the direction of the force acting on the housing 71 is the same as the operating direction of the first operating part 510 in order to ensure that the positioning member 8A is tightly against the blood vessel 6. Therefore, the hemostatic device 10 simplifies the user's operation when performing the first and second front-end actions.

[0185] The first engaging portion 82 of the positioning member 8A is a balloon that can be switched between an inflated state and a deflated state. The balloon engages with the opening 6A in the inflated state. In this case, the hemostatic device 10 can insert the deflated balloon into the blood vessel 6 through the opening 6A. The hemostatic device 10 can also engage the balloon with the opening 6A from the inside of the blood vessel 6 by inflating the balloon inserted into the blood vessel 6.

[0186] <Second Implementation Method>

[0187] The hemostatic device 20 according to one embodiment of the present invention is described with reference to the accompanying drawings. Descriptions of structures common to the first embodiment (positioning member 8A, extrusion member 8B) are omitted or simplified.

[0188] <Shell 1>

[0189] like Figure 23 As shown, the housing 1 has a generally box-shaped extension that is relatively long in the extending direction. The housing 1 is formed by combining a left housing 1A corresponding to the left half and a right housing 1B corresponding to the right half. The housing 1 has a protrusion 11A that projects upward from the upper side near the base end. Figure 24 As shown, the following components are housed within the housing 1: positioning member 8A, extrusion member 8B, first cylindrical member 8C, limiting member 2A, switching member 2B, first moving member 3A, second moving member 4A, fourth moving member 3B, fifth moving member 3C, sixth moving member 4B, and limiting mechanism 4C (see reference). Figure 34 , Figure 35 At least a part of each.

[0190] like Figure 23 As shown, a first operating part 12 is provided on the upper surface of the housing 1, near the front end of the protrusion 11A. The first operating part 12 is a sliding rod operated by a user's finger. The first operating part 12 can move along the extension direction according to the user's operation. The first operating part 12 causes the first moving member 3A (described later) to move (see...) Figure 28 ), fourth moving component 3B (refer to) Figure 30 ), fifth moving component 3C (refer to) Figure 31 ) and the sixth moving component 4B (refer to Figure 33 The first operating unit 12 moves the extrusion member 8B connected to the first moving member 3A and the first cylindrical member 8C connected to the fourth moving member 3B in the extension direction.

[0191] A third operating part 13 is provided on the right side of the housing 1, extending in the same direction as the first operating part 12. The third operating part 13 is a sliding rod operated by the user's finger. The third operating part 13 can move in the extending direction according to the user's operation. The third operating part 13 connects to the connecting part 1C (see reference 1C) described later. Figure 32 The second cylindrical member 8D, which is connected to the connecting part 1C, moves along the extending direction.

[0192] A second operating section 14 is provided at the base end of the housing 1. The second operating section 14 is a handle for the user to hold and operate. The second operating section 14 can move along the extension direction according to the user's operation. The second operating section 14 enables the switching member 2B (described later) to be switched. Figure 26The positioning member 8A connected to the switching member 2B moves along the extension direction.

[0193] The housing 1 has a notification section 15 on the upper surface of the portion forward of the first operating section 12. The notification section 15 is an opening provided on the upper surface of the housing 1. The user can view the interior of the housing 1 through the notification section 15.

[0194] A downwardly protruding portion 11B is provided on the lower side near the base end of the housing 1. For example... Figure 24 As shown, receiving portions 14A to 14C are formed inside the protrusion 11B. Receiving portions 14A to 14C are generally rectangular parallelepiped spaces. Receiving portions 14A to 14C are arranged sequentially along the extending direction. Receiving portions 14A and 14B are adjacent in the extending direction, while receiving portions 14B and 14C are separated in the extending direction. Furthermore, the thickness of the wall separating each receiving portion 14A to 14C from the internal space of the housing 1 (hereinafter referred to as "partition wall") is different. Specifically, the thickness of the partition wall on the upper side of receiving portion 14A is larger than the thickness of the partition wall on the upper side of each of receiving portions 14B and 14C. Figure 25 As shown, magnet 141 is housed in housing section 14A. Magnet 142 is housed in housing section 14B. Magnet 143 is housed in housing section 14C. Magnets 141 to 143 are magnetically controlled by switching member 2B (described later). Figure 26 The movement in the direction of extension of ). It should be noted that, in Figure 24 Magnets 141-143 are omitted.

[0195] <Positioning component 8A, extrusion component 8B, first cylindrical component 8C, second cylindrical component 8D>

[0196] like Figures 23-25 As shown, the base end of the extension 81 of the positioning member 8A is connected to the switching member 2B described later (see reference). Figure 26 The extension 81 extends from the switching member 2B through the interior of the housing 1 toward the front end, and protrudes from the front end of the housing 1 toward the front end. The base end of the extrusion member 8B connects with the first moving member 3A (described later) Figure 28 The extrusion member 8B extends from the first moving member 3A through the interior of the housing 1 toward the front end, and protrudes from the front end of the housing 1 toward the front end. The extension 81 of the positioning member 8A passes through the inner cavity of the extrusion member 8B. The base end of the first cylindrical member 8C connects with the fourth moving member 3B (described later) (see reference). Figure 30The first cylindrical member 8C extends from the fourth moving member 3B through the interior of the housing 1 toward the front end, and protrudes from the front end of the housing 1 toward the front end. The extension 81 of the positioning member 8A and the extrusion member 8B pass through the inner cavity of the first cylindrical member 8C. The base end of the second cylindrical member 8D connects to the connecting portion 1C (described later) (see...). Figure 32 The second cylindrical member 8D is connected to the first cylindrical member 8C. The extension 81 of the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C pass through the inner cavity of the second cylindrical member 8D.

[0197] <Switching Component 2B>

[0198] like Figure 25 As shown, a switching member 2B is disposed on the upper side of the protrusion 11B inside the housing 1. The switching member 2B switches the limiting member 2A (described later) Figure 29 The switching member 2B moves along the extension direction according to the operation of the second operation unit 14, so that the positioning member 8A moves along the extension direction. Figure 26 As shown, the switching member 2B has a base 25, protrusions 26A and 26B, a connecting part 27, and a cylindrical part 28.

[0199] The base 25 is generally rectangular. The base 25 has a through hole (not shown) extending along the extension direction between the front end face and the base end face. The base end of the extension 81 of the positioning member 8A is connected to the front end face of the base 25. The inner cavity of the extension 81 communicates with the through hole of the base 25. A magnet 25 is built into the lower end of the base 25. The magnet 25A moves along the extension direction according to the switching member 2B and is relative to the magnets 141-143 (see reference) of the housing 1. Figure 25 One of the magnets 25A of the base 25 is positioned opposite the upper side of the magnet 141 of the housing 1. The position of the switching member 2B when the magnet 25A of the base 25 is opposite the upper side of the magnet 142 of the housing 1 is referred to as the "first switching position". The position of the switching member 2B when the magnet 25A of the base 25 is opposite the upper side of the magnet 142 of the housing 1 is referred to as the "second switching position". The position of the switching member 2B when the magnet 25A of the base 25 is opposite the upper side of the magnet 143 of the housing 1 is referred to as the "third switching position". The position of the switching member 2B when the magnet 25A of the base 25 is opposite the upper side of the separated portion between the magnets 142 and 143 of the housing 1 is referred to as the "initial switching position". The switching member 2B is positioned in the initial switching position (refer to the initial state when the hemostatic device 20 is not in use) in the initial switching position. Figure 36 , Figure 37 ).

[0200] It should be noted that, as referred to Figure 24 , Figure 25As explained, the thickness of the upper partition wall of the housing portions 14B and 14C of the housing 1 that houses magnets 142 and 143 is less than the thickness of the upper partition wall of the housing portion 14A that houses magnet 141. Therefore, when the switching member 2B is positioned in the second or third switching position, the magnetic force acting between the magnet 25A of the switching member 2B and the magnets 142 and 143 of the housing 1 is relatively larger. On the other hand, when the switching member 2B is positioned in the first switching position, the magnetic force acting between the magnet 25A of the switching member 2B and the magnet 141 of the housing 1 is relatively smaller.

[0201] like Figure 26 As shown, protrusions 26A and 26B are each rod-shaped, protruding from the front end face of the base 25 towards the front end. Protrusions 26A and 26B are arranged in a left-right direction. Protrusion 26A is positioned on the left side relative to protrusion 26B. Figure 25 As shown, protrusions 26A and 26B penetrate from the base end side into the second engaging portions 311 and 312 of the first moving member 3A (see reference). Figure 28 ).

[0202] like Figure 26 As shown, the connecting portion 27 has a plate-shaped first extending portion 27A extending to the right from the right side of the base 25, and two rod-shaped second extending portions 27B extending upward from the first extending portion 27A. The two second extending portions 27B are arranged along the extending direction. Figure 24 As shown, the second movable member 4A, described later, is connected to the connecting part 27. (As...) Figure 26 As shown, the cylindrical portion 28 is cylindrical and protrudes from the base end side of the base portion 25. The inner cavity of the cylindrical portion 28 communicates with a through hole (not shown) in the base portion 25. The second operating portion 14 is connected to the base end of the cylindrical portion 28.

[0203] like Figures 23-25 As shown, the cylindrical portion 28 protrudes from the base end of the housing 1 towards the base end side. A needle hub (not shown) is connected to the base end of the cylindrical portion 28 via a tube (not shown). Compressed fluid is injected into the inner cavity of the extension 81 of the positioning member 8A through the inner cavity of the cylindrical portion 28 and a through hole (not shown) in the base 25. The compressed fluid injected into the extension 81 switches from a contracted state to an expanded state by expanding the first engaging portion 82 of the positioning member 8A.

[0204] <Second Moving Component 4A>

[0205] like Figure 24 As shown, in the connecting part 27 of the switching component 2B (refer to...) Figure 26 The second moving member 4A is connected to the housing 1. The second moving member 4A switches the relative position of the switching member 2B with respect to the housing 1 via the notification part 15 of the housing 1 (see reference). Figure 23 Notify the user. (e.g.) Figure 27 As shown, the second moving member 4A has a rod portion 41, a connecting portion 42, and an exposed portion 43.

[0206] The rod portion 41 is generally rod-shaped and extends in the extending direction. The connecting portion 42 is provided at the base end of the rod portion 41 and has two through holes extending in the vertical direction. The two second extension portions 27B of the connecting portion 27 of the switching member 2B (see reference) Figure 26 Two through holes penetrate the connecting portion 42 from below. Thus, the second moving member 4A is connected to the switching member 2B at its base end. With the second moving member 4A connected to the switching member 2B, the rod portion 41 extends from the switching member 2B towards its front end. The second moving member 4A can move along its extension direction as the switching member 2B moves.

[0207] The exposed portion 43 is connected to the front end of the rod portion 41 and extends to the left. When the switching member 2B is configured in the initial switching position or the third switching position, the exposed portion 43 is positioned on the side closer to the base end of the notification portion 15 of the housing 1. In this case, the user cannot visually view the exposed portion 43 through the notification portion 15. When the switching member 2B is configured in the second switching position, the exposed portion 43 is positioned below the notification portion 15 of the housing 1. In this case, the user can visually view the exposed portion 43 through the notification portion 15. When the switching member 2B is configured in the first switching position, the exposed portion 43 is positioned on the side closer to the front end of the notification portion 15 of the housing 1. In this case, the user cannot visually view the exposed portion 43 through the notification portion 15. Thus, the hemostatic device 20 switches between a state where the exposed portion 43 can be viewed through the notification portion 15 and a state where it cannot be viewed, depending on the relative position of the second moving member 4A relative to the housing 1.

[0208] <First Moving Component 3A>

[0209] like Figure 25 As shown, a first moving member 3A is disposed on the front end side of the switching member 2B inside the housing 1. The first moving member 3A moves along the extension direction according to the operation of the first operating part 12. Hereinafter, the position of the first moving member 3A that has moved to the side closest to the base end will be referred to as the "first base end position" (see reference). Figures 36-39 (described later), the position of the first moving member 3A, which is moved to the frontmost side, is called the "first front position" (refer to...). Figures 44-47 (To be discussed later). The intermediate position between the first base position and the first front position is referred to as the "first intermediate position" (see reference). Figures 40-43 (To be described later). The first movable component 3A is positioned at the first base end in the initial state where the hemostatic device 20 is not in use (see reference). Figure 36 , Figure 37The area traversed when the first moving member 3A moves along the extending direction is called the "first moving area". For example... Figure 8 As shown, the first movable component 3A has a first base 31, a second base 32, and a mounting part 33.

[0210] The first base 31 is generally cuboid in shape. The first base 31 has second engaging portions 311 and 312, which extend through the front end face and the base end face in the extending direction, forming a through hole. The second engaging portions 311 and 312 are located at the upper end of the first base 31 and are arranged in the left-right direction. The second engaging portion 311 is positioned on the left side relative to the second engaging portion 312. Figure 25 As shown, with the first moving member 3A positioned at the first base end, the protrusion 26A of the switching member 2B positioned at the initial switching position (refer to...) Figure 26 The protrusion 26B of the switching member 2B (refer to) extends from the base end side through the second engaging portion 311. Figure 26 It extends from the base end side through the second engaging portion 312. Additionally, the limiting portions 23A and 23B of the limiting member 2A described later (see...) Figure 29 It can penetrate through the second engaging parts 311 and 312 from the front end and engage.

[0211] like Figure 28 As shown, the through hole 313 is provided on the lower side of the second engaging portions 311 and 312 in the first base 31. From the switching member 2B (refer to...) Figure 26 The extension 81 of the positioning member 8A, extending towards the front end, passes through the through hole 313 from the base end to the front end. The base end of the extrusion member 8B is connected to the front end face of the first base 31. The inner cavity of the extrusion member 8B communicates with the through hole 313. The extension 81 of the positioning member 8A extends from the through hole 313 towards the front end and passes through the inner cavity of the extrusion member 8B. A magnet 31A is built into the left end of the first base 31.

[0212] The second base 32 is disposed separately from the first base 31 towards its front end. The second base 32 is generally cuboid in shape with a downwardly recessed portion 32B. The extension 81 of the positioning member 8A and the extrusion member 8B pass through the inside of the recess 32B. The mounting portion 33 is plate-shaped and extends in the extending direction. The base end of the mounting portion 33 is connected to the lower end of the first base 31. The front end of the mounting portion 33 is connected to the lower end of the second base 32.

[0213] <Restriction Component 2A>

[0214] like Figure 25 As shown, a limiting member 2A is disposed inside the protrusion 11A of the housing 1. The limiting member 2A is adjusted according to the force-applying part 24 described later (see reference). Figure 29The force exerted by the object causes the protrusion 11A to move vertically within it. For example... Figure 29 As shown, the limiting member 2A has a base 21, extension parts 22A and 22B, limiting parts 23A and 23B, and a force-applying part 24.

[0215] The base 21 has a first portion 21A, a second portion 21B, 21C, and a third portion 21D. The first portion 21A has a surface orthogonal to the extending direction on its base end side. The second portion 21B extends from the right end of the first portion 21A towards the front end side and has a surface orthogonal to the left-right direction on its left side. The second portion 21C extends from the left end of the first portion 21A towards the front end side and has a surface orthogonal to the left-right direction on its right side. The third portion 21D extends from the lower end of the first portion 21A towards the front end side and has a surface orthogonal to the up-down direction on its upper side. The force-applying portion 24 is disposed in a recess formed by the surfaces of the first portion 21A, the second portion 21B, 21C, and the third portion 21D. The force-applying portion 24 is a tension coil spring. The upper end of the force-applying portion 24 is connected to the protrusion 11A of the housing 1 (see reference). Figures 23-25 The upper inner wall of the limiting member 2A is connected. The lower end of the force-applying part 24 is connected to the upper surface of the third part 21D of the base 21 of the limiting member 2A. The limiting member 2A is subjected to an upward force due to the elastic force of the force-applying part 24.

[0216] The extension portion 22A extends downward from the left end of the third portion 21D of the base 21. The limiting portion 23A protrudes from the lower end of the extension portion 22A toward the base end. The extension portion 22B extends downward from the right end of the third portion 21D of the base 21. The limiting portion 23B protrudes from the lower end of the extension portion 22B toward the base end.

[0217] The limiting parts 23A and 23B are in a state where the base 21 moves downward against the force applied by the force-applying part 24 (see reference). Figure 25 The first moving member 3A is disposed in the first moving region. In this state, the limiting parts 23A and 23B pass through the second engaging parts 311 and 312 (see reference) of the first moving member 3A disposed at the first base end position from the front end side. Figure 28 When the limiting parts 23A and 23B are engaged with the first moving member 3A, the upward movement of the limiting member 2A corresponding to the force applied by the force part 24 is restricted. Furthermore, in this state, the movement of the first moving member 3A from the first base position toward the first front position is restricted by the limiting parts 23A and 23B. Therefore, the movement of the extrusion member 8B connected to the first moving member 3A is also restricted. Hereinafter, the state in which the limiting parts 23A and 23B are engaged with the second engaging parts 311 and 312 of the first moving member 3A to restrict the movement of the first moving member 3A is referred to as the "restricted state".

[0218] When the limiting component 2A is in the limiting state, switch component 2B (refer to...) Figure 26 When the switching member 2B has moved from its initial switching position toward the front end, the protrusions 26A and 26B (refer to...) Figure 26 From the second engaging portions 311, 312 of the first moving member 3A (refer to...) Figure 28 The first moving member 3A protrudes towards the front end. This releases the engagement of the restricting portions 23A and 23B with respect to the second engaging portions 311 and 312 of the first moving member 3A. In this state, the base 21 moves upward under the force of the applying force 24. Consequently, the restricting portions 23A and 23B of the restricting member 2A are no longer positioned in the first moving region of the first moving member 3A. In this state, the movement of the first moving member 3A is not restricted by the restricting portions 23A and 23B, and therefore the first moving member 3A can move in the extending direction within the first moving region. The state in which the restricting portions 23A and 23B are not engaged with the second engaging portions 311 and 312 of the first moving member 3A and the movement of the first moving member 3A is not restricted is referred to as the "permitted state."

[0219] Fourth moving component 3B

[0220] like Figure 25 As shown, a fourth moving member 3B is disposed inside the housing 1 at the front end of the first moving member 3A and below the first operating part 12. The fourth moving member 3B moves in the extending direction according to the operation of the first operating part 12, causing the first cylindrical member 8C to move in the extending direction. The position of the fourth moving member 3B at its base end will be referred to as the "fourth base end position" (see reference). Figures 36-39 , Figure 42 , Figure 43 The position of the fourth moving member 3B, which is moved to the frontmost side, is called the "fourth front position" (refer to...). Figure 40 , Figure 41 , Figures 44-47 The fourth movable component 3B is positioned at the fourth base position in the initial state where the hemostatic device 20 is not in use (see reference). Figure 36 , Figure 37 ).like Figure 30 As shown, the fourth moving component 3B has a first base 34, a second base 35, and a mounting part 36.

[0221] The first base 34 is a generally rectangular parallelepiped that is longer in the vertical direction. A magnet 34A is built into the upper end of the first base 34, and a magnet 34B is built into the lower end. The second base 35 is disposed separately from the first base 34 towards its base end. The second base 35 is a generally rectangular parallelepiped that is longer in the horizontal direction. A magnet 35A is built into the left end of the second base 35. A mounting portion 36 extends along the extending direction and connects the first base 34 and the second base 35. The front end of the mounting portion 36 is connected to the center of the vertical direction of the base end side surface of the first base 34. The base end of the mounting portion 36 is connected to the right side of the front end side surface of the second base 35.

[0222] A through hole 34C extending in the extending direction is formed within the area of ​​the first base 34, the mounting portion 36, and the second base 35. The base end of the first cylindrical member 8C is connected to the base end side of the second base 35. The first cylindrical member 8C extends from the base end towards the front end through the through hole 34C and extends towards the front end side compared to the first base 34. From the switching member 2B (refer to...) Figure 26 The extension 81 of the positioning member 8A extending towards the front end and the extension portion 81 of the first moving member 3A (refer to) Figure 28 The extrusion member 8B, extending towards the front end, passes through the through hole 34C from the base end side. The extension 81 of the positioning member 8A and the extrusion member 8B pass through the inner cavity of the first cylindrical member 8C and extend towards the front end relative to the first base 34. The cylindrical portion 38B of the fifth moving member (described later) Figure 31 It penetrates through the through hole 34C from the base end side.

[0223] A groove 36A extending in the extending direction is provided on the upper surface of the mounting part 36. A rack 36B is formed on the bottom surface of the groove 36A. Figure 25 As shown, a pinion 12A, located inside the housing 1 and below the first operating part 12, meshes with a rack 36B. The pinion 12A rotates according to the operation of the first operating part 12. The fourth moving member 3B moves in the extending direction according to the rotation of the pinion 12A. More specifically, when the first operating part 12 is moved towards the front end, the fourth moving member 3B moves towards the base end. When the first operating part 12 is moved towards the base end, the fourth moving member 3B moves towards the front end.

[0224] like Figure 25 As shown, the second base 35 of the fourth moving member 3B is positioned closer to the base end than the second base 32 of the first moving member 3A. The mounting portion 36 of the fourth moving member 3B is inserted from above into the recess 32B provided in the second base 32 of the first moving member 3A (see reference). Figure 28 ).

[0225] Fifth moving component 3C>

[0226] like Figure 25 As shown, a fifth moving member 3C is disposed at the front end of the fourth moving member 3B inside the housing 1. The fifth moving member 3C moves along the extension direction according to the operation of the first operating part 12. Hereinafter, the position of the fifth moving member 3C that has moved to the side closest to the base end will be referred to as the "fifth base end position" (see reference). Figure 42 , Figure 43 The position of the fifth moving component 3C, which is moved to the frontmost side, is called the "fifth front position" (refer to...). Figures 36-41 , Figures 44-47 The fifth movable component 3C is positioned at the fifth front end in the initial state where the hemostatic device 20 is not in use (see reference). Figure 36 , Figure 37 ).like Figure 31 As shown, the fifth moving member 3C has a base 37 and cylindrical portions 38A and 38B.

[0227] The base 37 is a generally rectangular parallelepiped shape that is longer in the vertical direction. The base 37 has a protrusion 371 that projects to the left from the center in the vertical direction. A magnet 37A is built into the upper end of the base 37, and a magnet 37B is built into the lower end. A magnet 37C is built into the protrusion 371 in the base 37. The base 37 has a through hole (not shown) extending in the extending direction from the center in the vertical direction. A cylindrical portion 38A extends from the portion of the front end side of the base 37 where the through hole is formed towards the front end side. A cylindrical portion 38B extends from the portion of the base end side of the base 37 where the through hole is formed towards the base end side. The inner cavities of each of the cylindrical portions 38A and 38B communicate with the through hole of the base 37.

[0228] like Figure 25 As shown, the cylindrical portion 38B passes through the through hole 34C of the fourth moving member 3B from the front end side (refer to...). Figure 30 ).like Figure 31 As shown, from switching component 2B (refer to...) Figure 26 The extension 81 of the positioning member 8A extending towards the front end, and the extension portion 81 of the first moving member 3A (refer to) Figure 29 The extrusion member 8B extending towards the front end and the fourth moving member 3B (see reference) Figure 30 The first cylindrical member 8C, extending towards the front end, passes through the cylindrical portion 38B from the base end side. The extension 81 of the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C pass through the inner cavities of the cylindrical portions 38A and 38B and extend from the front end of the cylindrical portion 38A towards the front end side.

[0229] Interconnection part 1C>

[0230] like Figure 25 As shown, a connecting portion 1C is provided at the front end of the housing 1. The connecting portion 1C is configured to operate the third operating portion 13 (see reference 13). Figure 23The second cylindrical member 8D moves along the extension direction due to the operation of the second cylindrical member 8D. The position where the connecting part 1C is moved to the side closest to the base end will be referred to as the "connecting base end position" (see reference). Figure 35 , Figure 46 , Figure 47 The position of the connecting part 1C, which is moved to the frontmost side, is called the "connecting front end position" (see reference). Figure 34 , Figures 36-45 The movement of the connecting part 1C can be restricted by the limiting mechanism 4C described later (see reference). Figure 34 , Figure 35 (Restrictions.) Figure 32 As shown, the connecting part 1C has a cylindrical part 16, extended parts 17A and 17B, and a protrusion 18.

[0231] The cylindrical portion 16 is a cylindrical member having an inner cavity extending in the extending direction. The cylindrical portion 16 has a front cylindrical portion 16A and a base cylindrical portion 16B arranged in the extending direction. The front cylindrical portion 16A is positioned at the front relative to the base cylindrical portion 16B. The diameter of the front cylindrical portion 16A is larger than the diameter of the base cylindrical portion 16B. A second cylindrical member 8D is detachably connected to the front end of the front cylindrical portion 16A via a connector 88. The extension 81 of the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C extend towards the front end through the inner cavity of the second cylindrical member 8D.

[0232] The extension portions 17A and 17B are elongated plates. Extension portion 17A extends from the upper end of the front end cylindrical portion 16A toward the base end. A wide portion 171 is connected to the base end of extension portion 17A. The width of the wide portion 171 in the left-right direction is greater than that of extension portion 17A. Extension portion 17B extends from the lower end of the base end cylindrical portion 16B toward the base end. A protrusion 18 protrudes to the left from the base end of the base end cylindrical portion 16B.

[0233] like Figure 25 As shown, the base end portion 16B and the extended portions 17A and 17B each extend through a through hole provided at the front end of the housing 1 from the front end side. When the connecting portion 1C moves towards the front end side, the wide portion 171 hooks onto the inner wall of the housing 1. This prevents the connecting portion 1C from detaching from the housing 1.

[0234] like Figure 24 As shown, a plate-shaped mounting portion 13B is connected to the right end of the protrusion 18. The mounting portion 13B extends from the protrusion 18 toward the base end. A third operating portion 13 is connected to the base end of the mounting portion 13B. The force corresponding to the operation of the third operating portion 13 is transmitted to the connecting portion 1C via the mounting portion 13B, causing the connecting portion 1C to move in the extending direction.

[0235] <Sixth Moving Component 4B>

[0236] like Figures 23-25 As shown, the sixth moving member 4B is disposed to the left of the fifth moving member 3C and the connecting part 1C inside the housing 1. The sixth moving member 4B moves along the extending direction according to the operation of the first operating part 12, switching the limiting mechanism 4C (described later) (see reference). Figure 34 , Figure 35 The position of the sixth moving member 4B, which has moved to the side closest to the base end, will be referred to as the "sixth base end position" (see reference). Figures 36-43 The position of the sixth moving member 4B, which is moved to the frontmost side, is called the "sixth front position" (refer to...). Figures 44-47 The sixth movable component 4B is positioned at the sixth base position in the initial state when the hemostatic device 20 is not in use (see reference). Figure 36 , Figure 37 ).like Figure 33 As shown, the sixth moving member 4B has a base 45 and an extension 46.

[0237] The base 45 is a roughly rectangular parallelepiped shape, longer in the left-right direction. The base 45 is positioned relative to the protrusion 371 of the fifth moving member 3C (see reference). Figure 31 ) Configured on the base side (refer to Figure 37 , Figure 39 , Figure 41 , Figure 43 , Figure 45 A magnet 45A is built into the base 45. The extension 46 is plate-shaped and extends from the left end of the base 45 toward the front end. The upper end of the extension 46 has a first portion 461, a second portion 462, and a third portion 463. The first portion 461 extends from the front end of the extension 46 toward the base end side in the extending direction. The second portion 462 extends obliquely upward from the base end of the first portion 461 toward the base end side. The third portion 463 extends from the base end of the second portion 462 toward the base end side in the extending direction.

[0238] <Restricted Agency 4C>

[0239] like Figure 34 , Figure 35 As shown, the limiting mechanism 4C is located inside the housing 1, to the left of the base end cylinder 16B of the connecting part 1C, and above the extension 46 of the sixth moving member 4B. The limiting mechanism 4C has a limiting part 47 and a force-applying part 48. The limiting part 47 is generally cuboid in shape. The force-applying part 48 is located above the limiting part 47. The force-applying part 48 is a compression coil spring. The upper end of the force-applying part 48 is connected to the inner wall of the housing 1. The lower end of the force-applying part 48 is connected to the upper end of the limiting part 47. A downward force is applied to the limiting part 47 according to the elastic force of the force-applying part 48.

[0240] Figure 34The diagram shows the sixth moving member 4B positioned at the sixth base end position. In this position, the limiting portion 47 of the limiting mechanism 4C contacts the first portion 461 of the extension 46 of the sixth moving member 4B. The limiting portion 47 is pressed against the first portion 461 of the extension 46 from above by the force applied by the force-applying portion 48. The vertical position of the limiting portion 47 in contact with the first portion 461 of the extension 46 of the sixth moving member 4B will be referred to as the "limiting position." The limiting portion 47 in the limiting position contacts the base end side of the protrusion 18 of the connecting portion 1C, which is positioned at the connecting front end position. In this case, the limiting portion 47 is positioned in the moving area (hereinafter referred to as the "second moving area") in the extending direction of the protrusion 18 of the connecting portion 1C, thus limiting the movement of the connecting portion 1C towards the base end. It should be noted that the limiting portion 47 is positioned in the limiting position in the initial state when the hemostatic device 20 is not in use.

[0241] During the movement of the sixth moving member 4B from the sixth base position to the sixth front position, the limiting part 47 of the limiting mechanism 4C sequentially contacts the first part 461, the second part 462, and the third part 463 of the extension part 46 of the sixth moving member 4B, and moves upward against the force applied by the force-applying part 48. Figure 35 As shown, when the sixth moving member 4B is positioned at the sixth front end, the limiting part 47 of the limiting mechanism 4C contacts the third portion 463 of the extension 46 of the sixth moving member 4B. Hereinafter, the vertical position of the limiting part 47 in the state where the extension 46 of the sixth moving member 4B contacts the third portion 463 will be referred to as the "allowed position". The limiting part 47 positioned in the allowed position is positioned higher than the limiting part 47 positioned in the restricted position. The limiting part 47 in the allowed position is positioned higher than the second moving area. In this case, the movement of the connecting part 1C in the extending direction is not limited by the limiting part 47.

[0242] <Hemostasis Techniques>

[0243] Reference Figures 36-47 The procedure of using hemostatic device 20 and hemostatic agent S to stop bleeding at the puncture site is described. Procedures identical to those in the first embodiment are omitted or simplified.

[0244] After treatment via puncture port 61, as Figure 36 , Figure 37 As shown, a hemostatic device 20 is prepared as follows: the limiting member 2A is in a limiting state, the switching member 2B is configured in the initial switching position, the first moving member 3A is configured in the first base position, the fourth moving member 3B is configured in the fourth base position, the fifth moving member 3C is configured in the fifth front position, the sixth moving member 4B is configured in the sixth base position, and the connecting part 1C is configured in the connecting front position.

[0245] like Figure 37 As shown, when the hemostatic device 20 is in the above-described state, the restricting member 2A is in a restricted state. Therefore, the restricting portions 23A and 23B of the restricting member 2A engage with the second engaging portions 311 and 312 of the first moving member 3A from the front end side (see reference). Figure 28 The first moving member 3A is engaged and positioned in the first moving region of the first moving member 3A. Therefore, the movement of the first moving member 3A in its extending direction is restricted by the restricting portions 23A and 23B, and thus the movement of the extrusion member 8B connected to the first moving member 3A is also restricted. Since the sixth moving member 4B is positioned at the sixth base end, the restricting portion 47 of the restricting mechanism 4C (refer to...) Figure 34 The connector 1C, positioned at the front end of the connector, is positioned in a restricted position. Therefore, the movement of the connector 1C towards the base end is restricted by the restricting mechanism 4C (see reference 4C). Figure 34 ).

[0246] Perform the same preliminary actions as in the first implementation method. For example... Figure 36 As shown, during the initial action, the first engaging portion 82 of the positioning member 8A expands within the blood vessel 6 due to the supply of compressed fluid from the needle hub. In this state, the user grips the housing 1 of the hemostatic device 20 and applies force, causing the housing 1 to move towards the side (base end side) where the second cylindrical member 8D is pulled out from the puncture hole 61. Consequently, the first engaging portion 82, which expands within the blood vessel 6, engages from the inside with the opening 6A formed on the blood vessel 6. The user then moves the housing 1 towards the base end side. This causes the positioning member 8A to move towards the front end side relative to the housing 1. Figure 37 As shown, the switching component 2B connected to the positioning component 8A also moves towards the front end relative to the first moving component 3A (see reference). Figure 37 Arrow Y31).

[0247] When the switching member 2B moves from the initial switching position to the second switching position, the protrusions 26A and 26B of the switching member 2B engage with the second engaging portions 311 and 312 of the first moving member 3A (see reference). Figure 28 The first moving member 3A protrudes towards the front end. This releases the engagement between the limiting parts 23A and 23B and the second engaging parts 311 and 312 of the first moving member 3A. In this case, as... Figure 38 As shown, the limiting member 2A moves upward according to the force applied by the force-applying part 24 (refer to arrow Y32), and the limiting member 2A switches from the limiting state to the allowing state. Figure 39 As shown, the limiting parts 23A and 23B are not disposed in the first moving region of the first moving member 3A, so that the first moving member 3A is in a state where it can move in the first moving region.

[0248] After the position of the limiting member 2A changes from a temporarily restricted state to an allowed state, it will not return to the initial restricted state even if the force applied by the user to the housing 1 is released. That is, when the engagement of the limiting parts 23A and 23B with respect to the first moving member 3A is temporarily released and the limiting member 2A becomes allowed, the limiting member 2A remains in the allowed state and will not return to the initial restricted state.

[0249] like Figure 39 As shown, when the switching member 2B moves from the initial switching position to the second switching position as the user moves the housing 1 of the hemostatic device 20 towards the base end, the magnet 25A built into the switching member 2B connects with the magnet 142 of the housing 1 from above (see reference). Figure 38 Opposite. Here, as Figure 38 As shown, the housing sections 14B and 14C that house magnets 142 and 143 (refer to...) Figure 24 The thickness of the upper partition wall is less than that of the containment section 14A (see reference). Figure 24 The thickness of the upper isolation wall of the switching member 2B. Therefore, when the switching member 2B is positioned in the second switching position, the magnetic force acting between the magnet 25A of the switching member 2B and the magnet 142 of the housing 1 is relatively greater than when the switching member 2B is positioned in the first switching position. Therefore, the magnetic force acting between the magnets 25A and 142 is also relatively greater, and thus the movement of the switching member 2B towards the front end is suppressed by the magnetic force. Therefore, after the user moves the housing 1 towards the base end to restrict the member 2A from the restricted state to the permitted state, further movement of the switching member 2B from the second switching position towards the front end is restricted by the magnet 142.

[0250] With the switching member 2B positioned in the second switching position, the exposed portion 43 of the second moving member 4A is located below the notification portion 15 of the housing 1. In this case, the user can visually view the exposed portion 43 via the notification portion 15. Therefore, the user can recognize, by visually viewing the exposed portion 43 via the notification portion 15, that the restricting member 2A has switched from a restricted state to a permitted state as the switching member 2B moves to the second switching position.

[0251] If the user applies a large force to move the housing 1 further towards the base end, there is a possibility that the switching member 2B may move past the second switching position and towards the front end to the first switching position. In this case, the magnet 25A of the switching member 2B will contact the magnet 141 of the housing 1 from above (see reference). Figure 38The switching member 2B is counterbalanced. Movement towards the front end is suppressed by the magnetic force between magnets 25A and 141. When the switching member 2B moves to the first switching position, the exposed portion 43 of the second moving member 4A is no longer exposed from the notification portion 15 of the housing 1. Therefore, the user can recognize that the force causing the housing 1 to move towards the base end is too large by not being able to identify the exposed portion 43 via the notification portion 15.

[0252] <First Front-End Action>

[0253] In the hemostatic device 20, when the restricting member 2A is in the allowable state, the first moving member 3A can move along the extension direction. For example... Figure 40 As shown, in this state, the user moves the first operating unit 12 towards the base end by a predetermined amount L (refer to arrow Y33). The pinion 12A, located below the first operating unit 12, rotates, causing the fourth moving member 3B to move from the fourth base end position to the fourth front end position (refer to arrow Y34). Figure 41 ).

[0254] like Figure 41 As shown, as the fourth moving member 3B moves towards the front end, the first base 34 of the fourth moving member 3B contacts the base 37 of the fifth moving member 3C, which is positioned at the fifth front end. Under the magnetic force between the magnets 34A and 34B of the fourth moving member 3B and the magnets 37A and 37B of the fifth moving member 3C, the fourth moving member 3B and the fifth moving member 3C are attracted together. Furthermore, the second base 32 of the first moving member 3A is contacted at the front end of the second base 35 of the fourth moving member 3B. Based on the magnetic force between the magnet 35A of the fourth moving member 3B and the magnet 31A of the first moving member 3A, the first moving member 3A moves towards the front end according to the movement of the fourth moving member 3B. Thus, the first moving member 3A moves from the first base end position to the first intermediate position (refer to arrow Y35). In other words, the first moving member 3A and the fourth moving member 3B move towards the front end in a contacting state through the operation of the first operating unit 12. Hereinafter, the above-described action accompanying the operation of the first operating unit 12 will be referred to as the "first front end action".

[0255] like Figure 40As shown, the extrusion member 8B connected to the first moving member 3A and the first cylindrical member 8C connected to the fourth moving member 3B move towards the front end via the first front end action. On the other hand, the positioning member 8A connected to the switching member 2B and the second cylindrical member 8D connected to the connecting part 1C do not move. That is, the extrusion member 8B and the first cylindrical member 8C move relative to the housing 1, the positioning member 8A, and the second cylindrical member 8D towards the front end. As a result, the hemostatic agent S is pressed towards the front end by the extrusion member 8B in a state disposed near the first front end 85 within the first cylindrical member 8C, and moves towards the second front end 86 within the second cylindrical member 8D.

[0256] <Cylinder base end action>

[0257] like Figure 42 As shown, the user then moves the first operating unit 12 a predetermined amount L towards the front end (refer to arrow Y36). The pinion 12A, located below the first operating unit 12, rotates, and the fourth moving member 3B moves from the fourth front end position to the fourth base end position (refer to arrow Y37). Figure 43 ).

[0258] like Figure 43 As shown, the base 37 of the fifth moving member 3C, attracted by the magnetic force between magnets 34A, 34B and magnets 37A, 37B, contacts the first base 34 of the fourth moving member 3B. As the fourth moving member 3B moves towards the base end, the fifth moving member 3C moves from the fifth front end position to the fifth base end position (refer to arrow Y38). The protrusion 371 of the fifth moving member 3C contacts the base 45 of the sixth moving member 4B from the front end side. The magnet 37C of the fifth moving member 3C contacts the magnet 45A of the sixth moving member 4B (refer to...). Figure 33 The magnetic force between the fifth moving component 3C and the sixth moving component 4B causes them to attract each other.

[0259] On the other hand, even when the fourth moving member 3B moves towards the base end, the first moving member 3A remains stationary at the first intermediate position. Therefore, corresponding to the movement of the fourth moving member 3B, the second base 35 of the fourth moving member 3B separates from the second base 32 of the first moving member 3A. The first base 34 of the fourth moving member 3B contacts the second base 32 of the first moving member 3A from the front end, and the second base 35 of the fourth moving member 3B contacts the first base 31 of the first moving member 3A from the front end. Under the magnetic force between the magnet 35A of the fourth moving member 3B and the magnet 31A of the first moving member 3A, the fourth moving member 3B and the first moving member 3A are attracted together. Hereinafter, the above-described action occurring with the operation of the first operating unit 12 will be referred to as "cylinder base end action." The first moving member 3A and the fourth moving member 3B can restrict the cylindrical base end action until the first front end action ends, and upon the end of the first front end action, the restriction on the cylindrical base end action is released, and the cylindrical base end action is performed.

[0260] like Figure 42 As shown, by moving the base end of the cylinder, the fourth moving member 3B moves towards the base end side in a state separated from the first moving member 3A. Consequently, the first cylindrical member 8C connected to the fourth moving member 3B moves towards the base end side. On the other hand, the positioning member 8A connected to the switching member 2B, the extrusion member 8B connected to the first moving member 3A, and the second cylindrical member 8D connected to the connecting portion 1C do not move. That is, the first cylindrical member 8C moves relative to the housing 1, the extrusion member 8B, the positioning member 8A, and the second cylindrical member 8D towards the base end side. Consequently, with the extrusion tip 84 of the extrusion member 8B maintaining the position of the hemostatic agent S at the base end side, the first cylindrical member 8C moves until the first tip 85 is positioned closer to the base end side than the hemostatic agent S. Thus, the hemostatic agent S is exposed from the first cylindrical member 8C. The hemostatic agent S is positioned closer to the front end side than the extrusion tip 84 of the extrusion member 8B and the first tip 85 of the first cylindrical member 8C, and is disposed within the second cylindrical member 8D.

[0261] <Second Front-End Action>

[0262] like Figure 44 As shown, the user then moves the first operating unit 12 towards the base end by a predetermined amount L (refer to arrow Y39). Corresponding to the rotation of the pinion 12A provided on the lower side of the first operating unit 12, the fourth moving member 3B moves from the fourth base end position towards the base end to the fourth front end position (refer to arrow Y40). Figure 45 ).

[0263] like Figure 45As shown, the first base 31 of the first moving member 3A, attracted by the magnetic force between magnets 31A and 35A, comes into contact with the second base 35 of the fourth moving member 3B. As the fourth moving member 3B moves toward the front end, the first moving member 3A moves from the first intermediate position to the first front end position (refer to arrow Y41).

[0264] The base 37 of the fifth moving member 3C, attracted by the magnetic force between magnets 34A and 34B and magnets 37A and 37B, contacts the first base 34 of the fourth moving member 3B. As the fourth moving member 3B moves towards the front end, the fifth moving member 3C moves from the fifth base end position to the left end position to the fifth front end position (refer to arrow Y42). The base 45 of the sixth moving member 4B, attracted by the magnetic force between magnets 37A and 45A, contacts the protrusion 371 of the fifth moving member 3C. As the fifth moving member 3C moves towards the front end, the sixth moving member 4B moves from the sixth base end position to the front end position to the sixth front end position (refer to arrow Y43). Hereinafter, the above-described actions occurring with the operation of the first operating unit 12 will be referred to as the "second front end action". The first moving member 3A, the fourth moving member 3B, and the sixth moving member 4B can restrict the second front end action until the cylindrical base end action ends, and release the restriction on the second front end action and perform the second front end action upon the end of the cylindrical base end action.

[0265] like Figure 44 As shown, the first cylindrical member 8C connected to the fourth moving member 3B and the extrusion member 8B connected to the first moving member 3A move towards the front end through the action of the second front end. On the other hand, the positioning member 8A connected to the switching member 2B and the second cylindrical member 8D connected to the connecting part 1C do not move. That is, the first cylindrical member 8C and the extrusion member 8B move relative to the housing 1, the positioning member 8A, and the second cylindrical member 8D towards the front end. As a result, the hemostatic agent S, positioned closer to the front end than the extrusion front end 84 of the extrusion member 8B and the first front end 85 of the first cylindrical member 8C, moves towards the front end through the action of the extrusion member 8B. The hemostatic agent S is pressed from the base end to the first engaging part 82 of the positioning member 8A near the second front end 86 of the second cylindrical member 8D. As a result, the hemostatic agent S blocks the opening 6A of the blood vessel 6 engaged by the first engaging part 82.

[0266] According to the movement of the sixth moving member 4B to the sixth front end position by the action of the second front end, the limiting part 47 of the limiting mechanism 4C (see reference) Figure 34 , Figure 35 From the restricted position (refer to) Figure 34 To the permitted location (refer to) Figure 35The limiting part 47 changes from being disposed in the second moving area to not being disposed in the second moving area. Therefore, the connecting part 1C can move from the connecting front end position toward the connecting base end position. That is, the connecting part 1C becomes a state in which it can move relative to the housing 1, the positioning member 8A, the extrusion member 8B and the first cylindrical member 8C toward the base end position according to the movement of the extrusion member 8B toward the front end side during the second front end operation.

[0267] <Connecting base actions>

[0268] like Figure 46 As shown, the user then moves the third operation unit 13 towards the base end (refer to arrow Y44). The third operation unit 13 is connected to the connecting unit 1C via the mounting unit 13B. The connecting unit 1C is able to move towards the base end from the connecting front end position to the connecting base end position by the second front end operation. Therefore, corresponding to the operation on the third operation unit 13, the connecting unit 1C moves from the connecting front end position to the connecting base end position (refer to arrow Y45). Hereinafter, the above-mentioned operation that occurs with the operation of the third operation unit 13 will be referred to as the "connecting base end operation". That is, the connecting base end operation is restricted by the limiting unit 47 being positioned in the restricted position until the second front end operation ends. On the other hand, the connecting base operation is unrestricted and can be performed when the limiting unit 47 is positioned in the allowed position after the second front end operation ends.

[0269] By connecting the base end, the second cylindrical member 8D, connected to the connecting part 1C, moves towards the base end. On the other hand, the positioning member 8A connected to the switching member 2B, the extrusion member 8B connected to the first moving member 3A, and the first cylindrical member 8C connected to the fourth moving member 3B do not move. That is, the second cylindrical member 8D moves relative to the housing 1, the positioning member 8A, the extrusion member 8B, and the first cylindrical member 8C towards the base end. In this case, the second front end 86 of the second cylindrical member 8D separates from the hemostatic agent S, which is in a state of blocking the opening 6A of the blood vessel 6, towards the base end.

[0270] <Location Baseline Action>

[0271] Next, the user draws the compressed fluid supplied to the first engaging portion 82 through the needle seat, causing the first engaging portion 82 to contract. Then, the user... Figure 47The operation shown involves moving the second operating unit 14 towards the base end (refer to arrow Y46). The second operating unit 14 is connected to the switching member 2B. Therefore, when the switching member 2B moves towards the base end according to the operation of the second operating unit 14, the positioning member 8A connected to the switching member 2B also moves towards the base end. On the other hand, the extrusion member 8B connected to the first moving member 3A, the first cylindrical member 8C connected to the fourth moving member 3B, and the second cylindrical member 8D connected to the connecting part 1C do not move. That is, the positioning member 8A moves relative to the extrusion member 8B, the first cylindrical member 8C, and the second cylindrical member 8D towards the base end. Hereinafter, the above-mentioned operation with the operation of the second operating unit 14 will be referred to as the "positioning base end operation".

[0272] By locating the base end action, the first engaging portion 82 of the positioning member 8A moves towards the base end side compared to the extrusion front end 84 of the extrusion member 8B, and is positioned within the extrusion member 8B. Subsequently, the positioning member 8A, the hemostatic agent S, the extrusion member 8B, the first cylindrical member 8C, and the second cylindrical member 8D are pulled out from the puncture hole 61.

[0273] It should be noted that, in response to the user moving the second operating part 14 towards the base end, the switching member 2B moves to the third switching position. The magnet 25A (see reference) is built into the switching member 2B. Figure 39 From the top, the magnet 143 of the housing 1 (refer to) Figure 38 Opposite. The magnetic force suppression switching member 2B acting between magnets 25A and 143 moves towards the base end side compared to the third switching position.

[0274] <Function and Effects of the Second Embodiment>

[0275] It has the same effects as the first embodiment. In addition, it has the following effects unique to the second embodiment. In the hemostatic device 20, the first front-end action is performed with the first engaging portion 82 of the positioning member 8A engaged with the opening 6A of the blood vessel 6. During the first front-end action, the first cylindrical member 8C and the extrusion member 8B move relative to the housing 1 towards the front end. As a result, the hemostatic device 20 can move towards the front end while holding the hemostatic agent S within the first cylindrical member 8C, bringing it close to the first engaging portion 82 of the positioning member 8A. Furthermore, during the cylindrical base-end action, the first cylindrical member 8C moves relative to the housing 1 towards the base end. As a result, the hemostatic agent S is extruded from the first cylindrical member 8C by the extrusion member 8B and exposed near the first engaging portion 82. Furthermore, during the second front-end action, the extrusion member 8B moves relative to the housing 1 towards the front end. As a result, the extrusion member 8B pushes the hemostatic agent S, exposed from the first cylindrical member 8C, to the position where it contacts the first engaging portion 82. The hemostatic device 20 uses a hemostatic agent S to seal the puncture hole 61, including the opening 6A of the blood vessel 6.

[0276] The hemostatic device 20 restricts the movement of its base end until the first tip movement ends. Furthermore, the hemostatic device 20 restricts the movement of its second tip until the base end movement ends. Thus, the hemostatic device 20 restricts the execution of the second tip movement until the first tip movement ends. Therefore, even if the hemostatic device 20 is accidentally operated, the hemostatic agent S can be prevented from being squeezed out of the first cylindrical member 8C before approaching the first engaging portion 82. Therefore, the user can easily operate the hemostatic device in the sequence of the first tip movement and the second tip movement.

[0277] The hemostatic device 20 includes a fourth moving member 3B connected to the first cylindrical member 8C and a first moving member 3A connected to the extrusion member 8B. During the first and second front-end movements, the first moving member 3A and the fourth moving member 3B move towards the front end in a contacting state according to the operation of the first operating part 12, causing the first cylindrical member 8C and the extrusion member 8B to move towards the front end. During the base-end movement, the fourth moving member 3B separates from the first moving member 3A and moves relative to the base-end according to the operation of the first operating part 12, thereby causing the first cylindrical member 8C to move towards the base-end. Therefore, the hemostatic device 20 can easily implement, through the first cylindrical member 8C and the extrusion member 8B, a structure for limiting the base-end movement until the first front-end movement is completed, and a structure for limiting the second front-end movement until the base-end movement is completed.

[0278] The first and second front-end actions are performed by moving the first operating unit 12 towards the base end in accordance with a predetermined amount L. Conversely, the base end action is performed by moving the first operating unit 12 towards the front end in accordance with a predetermined amount L. Therefore, by simply moving the first operating unit 12 back and forth along the extension direction by a predetermined amount L, the user can cause the hemostatic device 20 to perform the first front-end action, the base end action, and the second front-end action.

[0279] For the hemostatic device 20, with the first engaging portion 82 of the positioning member 8A engaged with the opening 6A of the blood vessel 6, the hemostatic agent S moves towards the vicinity of the first engaging portion 82 by moving the extrusion member 8B relative to the front end. This allows hemostasis to be achieved by sealing the puncture hole 61, including the opening 6A engaged with the first engaging portion 82, with the hemostatic agent S. The limiting member 2A can be switched to a limiting state that restricts the relative movement of the extrusion member 8B towards the front end (see reference). Figure 36 , Figure 37 ) and the permitted state that does not restrict relative movement toward the front end (see reference) Figure 38 , Figure 39 ).

[0280] With the first engaging portion 82 of the positioning member 8A engaged with the opening 6A of the blood vessel 6, the user moves the housing 1 towards the base end. In this case, the positioning member 8A moves towards the base end relative to the opening 6A, and the first engaging portion 82 comes into close contact with the opening 6A from the inside of the blood vessel 6. Furthermore, in this case, the positioning member 8A moves relative to the front end due to a force acting on it in the direction of the front end. The switching member 2B is in the case where the limiting member 2A is in the limiting state and the positioning member 8A moves relative to the front end (see reference). Figure 36 , Figure 37 Switch the restricted component 2A to the permitted state (see reference). Figure 38 , Figure 39 In other words, with the first engaging portion 82 tightly pressed against the opening 6A from the inside, the extrusion member 8B can move towards the front end. Therefore, in this state, when the extrusion member 8B moves towards the front end and the hemostatic agent S moves towards the front end, the hemostatic agent S can properly seal the puncture hole 61 to achieve hemostasis. Furthermore, since the first engaging portion 82 is in close contact with the opening 6A, it is possible to prevent the hemostatic agent S from flowing into the blood vessel 6 through the gap between the first engaging portion 82 and the opening 6A.

[0281] After the limiting member 2A switches from the limiting state to the allowing state, it remains in the allowing state regardless of whether the positioning member 8A moves relative to it. In other words, the limiting member 2A does not return to its initial limiting state after temporarily switching to the allowing state. Therefore, after releasing the operation of moving the housing 1 relative to the positioning member 8A towards the base end to engage the first engaging part 82 with the opening 6A, the user can perform the operation of moving the extrusion member 8B relative to the front end. Thus, the user can easily perform the operation of moving the extrusion member 8B relative to the front end.

[0282] The first moving member 3A moves relative to the first moving region. The limiting portions 23A and 23B of the limiting member 2A are disposed in the first moving region in a restricted state. In this case, the limiting member 2A in the restricted state can inhibit the movement of the first moving member 3A in the first moving region using the limiting portions 23A and 23B. Therefore, the limiting member 2A can appropriately restrict the relative movement of the extrusion member 8B towards the front end to extrude the hemostatic agent S with a simple structure. On the other hand, the switching member 2B switches from a restricted state where the limiting portions 23A and 23B of the limiting member 2A are disposed in the first moving region to a permitted state where they are not disposed in the first moving region, depending on the relative movement of the positioning member 8A towards the front end. Therefore, the switching member 2B can easily perform the action of switching from a state where the first moving member 3A can move in the first moving region to a state where it cannot move by moving the limiting portions 23A and 23B of the limiting member 2A.

[0283] The first moving member 3A includes second engaging portions 311 and 312. The limiting portions 23A and 23B of the limiting member 2A, when positioned in the first moving area, engage with the second engaging portions 311 and 312 to enter a limiting state. The switching member 2B switches from a state where the limiting portions 23A and 23B are engaged with the second engaging portions 311 and 312 to a state where they are not engaged. When the engagement of the limiting portions 23A and 23B with respect to the second engaging portions 311 and 312 is released, the force-applying portion 24 of the limiting member 2A moves the limiting portions 23A and 23B by applying force, thus setting the limiting member 2A to an enabling state. In this way, the hemostatic device 20 can switch the limiting member 2A from a limiting state to an enabling state using the force of the force-applying portion 24. Furthermore, the hemostatic device 20 can easily achieve a structure where the limiting member 2A does not return to its initial limiting state after being switched from a limiting state to an enabling state using the force-applying portion 24.

[0284] The switching member 2B moves relative to the first moving member 3A towards the front end as the positioning member 8A moves relative to the front end. This switches the switching member 2B from a state where the limiting portions 23A and 23B of the limiting member 2A are engaged with the second engaging portions 311 and 312 of the first moving member 3A to a state where they are not engaged. In this case, the switching member 2B can switch the engagement state of the limiting portions 23A and 23B relative to the second engaging portions 311 and 312 based on the relative movement of the positioning member 8A. Furthermore, by equipping the force-applying portion 24 of the limiting member 2A with a spring, it is easy to apply a force to move the limiting member 2A from a restricted state to a permitted state.

[0285] The exposed portion 43 of the second moving member 4A can switch its exposure state from the notification portion 15 according to the relative position of the switching member 2B relative to the housing 1. Therefore, the hemostatic device 20 can notify the user via the notification portion 15 of the magnitude of the force acting on the positioning member 8A connected to the switching member 2B.

[0286] When the switching member 2B is in the second switching position, the exposed portion 43 is positioned below the notification portion 15 of the housing 1. In this case, the user can visually view the exposed portion 43 through the notification portion 15. On the other hand, when the switching member 2B is in the first switching position, the exposed portion 43 is positioned further forward than the notification portion 15 of the housing 1. In this case, the user cannot visually view the exposed portion 43 through the notification portion 15. In other words, the hemostatic device 20 switches between a state where the exposed portion 43 can be identified through the notification portion 15 and a state where it cannot be visually viewed, depending on the magnitude of the force acting on the positioning member 8A when the user moves the housing 1 towards the base. Therefore, the notification portion 15 can easily communicate information indicating the magnitude of the force acting on the positioning member 8A.

[0287] The switching member 2B includes a magnet 25A. The housing 1 has a magnet 142 that faces the magnet 25A when the switching member 2B is positioned in the second switching position. In this case, the state in which the switching member 2B is positioned in the second switching position can be stabilized based on the magnetic force acting between the magnets 25A and 142. Therefore, when the switching member 2B moves relative to the front end side according to the force acting on the positioning member 8A, the hemostatic device 20 can appropriately switch the restricting member 2A from the restricted state to the permitted state. In addition, the hemostatic device 20 can suppress the switching member 2B from moving from the initial switching position to the first switching position via the second switching position by the magnetic force acting between the magnets 25A and 142.

[0288] When the switching member 2B is positioned in the second switching position, the magnetic force between magnets 25A and 142 is greater than the magnetic force between magnets 25A and 141 when the switching member 2B is positioned in the first switching position. Therefore, the hemostatic device 20 can further effectively suppress the switching member 2B from the initial switching position to the first switching position via the second switching position by utilizing the magnetic force acting between magnets 25A and 142.

[0289] The housing 1 also includes a magnet 141 disposed on the front side opposite to the magnet 142. When the switching member 2B is disposed in the first switching position, the magnets 25A and 141 are opposite each other. In this case, after the switching member 2B switches the restricting member 2A from the restricting state to the allowing state, the hemostatic device 20 suppresses the excessive movement of the switching member 2B towards the front end by the magnetic force acting between the magnets 25A and 141. Therefore, it is possible to suppress the situation where the force exerted by the positioning member 8A on the opening 6A of the blood vessel 6 is too large and the first engaging part 82 disengages from the opening 6A of the blood vessel 6 due to the excessive movement of the switching member 2B towards the front end.

[0290] <Variation Example>

[0291] This invention is not limited to the above-described embodiments and various modifications can be implemented. In the hemostatic device 10, the mechanism for restricting the second front-end movement until the first front-end movement ends and releasing the restriction of the second front-end movement upon the end of the first front-end movement may not be implemented by the moving members 51B and 73B, but may be executed by other mechanisms. Alternatively, the hemostatic device 10 may be operated by the first operating part 510 to move towards the front end to perform the first front-end movement and the second front-end movement. In addition, the hemostatic device 10 may be operated by the first operating part 510 to move towards the front end to perform the first front-end movement, and then operated by the first operating part 510 to move towards the base end to perform the second front-end movement.

[0292] In the hemostatic device 20, the mechanisms for restricting the movement of the base end of the cylinder during the period until the first front end movement ends and releasing the restriction of the base end movement upon the end of the first front end movement, and the mechanisms for restricting the movement of the second front end during the period until the end of the base end movement and releasing the restriction of the second front end movement upon the end of the base end movement, may be executed by other mechanisms instead of the first moving member 3A and the fourth moving member 3B. The hemostatic device 20 can also be operated to move the first operating part 12 towards the base end side to execute the first front end movement, the base end movement, and the second front end movement. Alternatively, the hemostatic device 20 can also be operated to move the first operating part 12 towards the front end side to execute the first front end movement, to execute the base end movement by moving the first operating part 12 towards the base end side, and to execute the second front end movement by moving the first operating part 12 towards the front end side.

[0293] The connecting part 71C of the hemostatic device 10 can always move toward the housing 71, or conversely, it can always remain stationary. The connecting part 71C can also switch between a movable state and a non-movable state, depending on whether a first or second front-end action is required, depending on the user's operation. The second cylindrical member 8D can also be directly connected to the housing 71 without being connected to the second cylindrical member 8D via the connecting part 71C. The same applies to the hemostatic device 20.

[0294] The connecting part 1C of the hemostatic device 10 can also be switched from a state where it cannot move along the extension direction to a state where it can move by the action of the first front end. The connecting part 1C of the hemostatic device 20 can also be switched from a state where it cannot move along the extension direction to a state where it can move by the action of the base end.

[0295] The first operating units 510, 12 and the third operating units 530, 13 are not limited to sliders. For example, the first operating units 510, 12 and the third operating units 530, 13 may also be composed of buttons, and each action is performed by pressing them. Alternatively, the first operating units 510, 12 and the third operating units 530, 13 may also be composed of dials, and each action is performed by rotating the dials. The operating units (sliders, buttons, dials, etc.) used to perform the first front-end action and the second front-end action, respectively, may also be provided independently.

[0296] In hemostatic device 10, the connecting part 71C can also be restricted from moving from the sixth front end position to the sixth base end position by a mechanism different from the restricting mechanism 74C. Similarly, in hemostatic device 20, the connecting part 1C can also be restricted from moving from the connecting front end position to the connecting base end position by a mechanism different from the restricting mechanism 74C. For example, hemostatic devices 10 and 20 may also have an operating part (e.g., a button) that can be operated according to the action of the second front end. The connecting part 71C can also be allowed to move from the sixth front end position to the sixth base end position according to the operation of the operating part. The connecting part 1C can also be allowed to move from the connecting front end position to the connecting base end position according to the operation of the operating part.

[0297] The hemostatic device 10 may also be without the second operating part 520. Similarly, the hemostatic device 20 may also be without the second operating part 14. For example, the hemostatic devices 10 and 20 may also move the positioning member 8A relative to the base end side according to the operation of the first operating parts 510 and 12 during the positioning base end action.

[0298] The pinions 51C and 12A can also be composed of multiple gears. The gear ratios of each gear can also be different. In this case, a small operation on the first operating part 510 can cause the moving member 51B to move significantly along the extending direction. Alternatively, a small operation on the first operating part 12 can cause the fourth moving member 3B to move significantly along the extending direction. The first operating part 510 and the moving member 51B can also be directly connected. The first operating part 12 and the fourth moving member 3B can also be directly connected. In this case, the moving directions of the first operating parts 510 and 12 can be aligned with the moving directions of the moving members 51B and 3B. Therefore, the user can easily identify the operation of the hemostatic devices 10 and 20 from the operation on the first operating parts 510 and 12.

[0299] The first engaging portion 82 is not limited to the balloon, but can also be other components capable of engaging with the opening 6A of the blood vessel 6.

[0300] The switching member 2B of the hemostatic device 20 switches from a state where the restricting portions 23A and 23B of the restricting member 2A are disposed in the first moving region of the first moving member 3A to a state where they are not disposed in the first moving region, thereby switching the restricting member 2A from a restricting state to a permissive state. For example, the restricting member 2A may also engage with the first moving member 3A from the base end side, thereby restricting the movement of the first moving member 3A. The switching member 2B may also allow the movement of the extrusion member 8B connected to the first moving member 3A by releasing the engaging state of the restricting member 2A relative to the first moving member 3A. In this case, the restricting member 2A may also not be disposed in the first moving region of the first moving member 3A in the restricted state. The restricting member 2A may also be a structure capable of directly restricting the movement of the extrusion member 8B. In this case, the hemostatic device 20 may not have the first moving member 3A.

[0301] The force-applying part 24 of the hemostatic device 20 can also be a compression spring that applies downward force to the limiting parts 23A and 23B. The switching member 2B can also have an end face cam. The end face cam can also switch the limiting member 2A from a limiting state to an allowing state by moving the limiting member 2A upward against the force of the force-applying part 24 according to the movement of the switching member 2B. The force-applying part 24 is not limited to a spring, and can also be other components (elastic rubber, etc.) capable of applying force to the limiting parts 23A and 23B.

[0302] When the switching member 2B of the hemostatic device 20 is positioned in the initial switching position, the exposed portion 43 may be positioned below the notification portion 15 of the housing 1. When the switching member 2B is positioned in the first switching position or the second switching position, the exposed portion 43 may be positioned further forward than the notification portion 15. In this case, the exposed portion 43 is visible through the notification portion 15 when the switching member 2B is positioned in the initial switching position, thus allowing identification of the initial switching position. Alternatively, when the switching member 2B is positioned in the third switching position, the exposed portion 43 may be positioned below the notification portion 15. Alternatively, when the switching member 2B is positioned in the first switching position, the second switching position, and the initial switching position, the exposed portion 43 may be positioned further forward than the notification portion 15. In this case, the exposed portion 43 is visible through the notification portion 15 when the switching member 2B moves to the third switching position. Thus, the hemostatic device 20 can notify the positioning member 8A of excessive movement towards the base end by exposing the exposed portion 43 from the notification portion 15.

[0303] The notification section 15 of the hemostatic device 20 can also be provided on the upper side of the switching member 2B. Therefore, the switching member 2B can be directly viewed via the notification section 15. In this case, the second moving member 4A may not be provided on the switching member 2B.

[0304] The switching member 2B of the hemostatic device 20 may not have magnet 25A. The housing 1 may also not have magnets 141 to 143. The housing 1 may also have a first limiting part that restricts the movement of the switching member 2B from the second switching position to the first switching position. This can also prevent the switching member 2B from moving excessively to the first switching position. In addition, the housing 1 may also have a second limiting part that restricts the movement of the switching member 2B towards the base end compared to the third switching position. This can also prevent the switching member 2B from moving excessively towards the base end compared to the third switching position. In addition, the housing 1 may not have magnets 141 and 143, but only magnet 142.

[0305] Alternatively, the thickness of the upper partition wall of the receiving portion 14C may be greater than the thickness of the upper partition wall of the receiving portion 14B of the hemostatic device 20. The thicknesses of the upper partition walls of the receiving portions 14A and 14C may also be approximately the same. Alternatively, the thickness of the upper partition walls of the receiving portions 14A and 14C may be greater than the thickness of the upper partition wall of the receiving portion 14B. Alternatively, the thickness of the upper partition walls of the receiving portions 14A and 14C may be smaller than the thickness of the upper partition wall of the receiving portion 14B of the hemostatic device 20. Alternatively, the thickness of the upper partition wall of the receiving portion 14B may be less than the thickness of the upper partition wall of the receiving portion 14A of the hemostatic device 20, and the thickness of the upper partition wall of the receiving portion 14C may be less than the thickness of the upper partition wall of the receiving portion 14B of the hemostatic device 20. That is, it is also possible that the thickness of the isolation wall on the upper side of each of the receiving parts 14A, 14B, and 14C of the hemostatic device 20 decreases sequentially.

[0306] <Other>

[0307] The first engaging portion 82 is an example of an "engaging portion" of the present invention. The moving members 51B and 73B and the limiting mechanism 74C in the first embodiment are examples of a "switching mechanism" of the present invention. The first moving member 3A, the fourth moving member 3B, and the limiting mechanism 4C in the second embodiment are examples of a "switching mechanism" of the present invention. The moving member 73B in the first embodiment is an example of a "first switching portion" of the present invention. The moving member 51B in the first embodiment is an example of a "second switching portion" of the present invention. The fourth moving member 3B in the second embodiment is an example of a "first switching portion" of the present invention. The first moving member 3A in the second embodiment is an example of a "second switching portion" of the present invention. The switching member 2B in the second embodiment is an example of a "switching member" and a "third moving member" of the present invention. Magnet 25A is an example of a "first magnet" of the present invention. Magnet 142 is an example of a "second magnet" of the present invention. Magnet 141 is an example of a "third magnet" of the present invention.

Claims

1. A hemostatic device that blocks an opening formed in a blood vessel to a puncture site in the skin. The hemostatic device is characterized by having: A positioning member having an extension portion extending in an extension direction and a first engaging portion disposed at the front end of the extension portion and capable of engaging with the opening portion; A hemostatic agent is disposed at a position closer to the base end than the first engaging portion of the positioning member; An extrusion member having an extrusion tip located at a position closer to the base end of the hemostatic agent, which, when moved relative to the positioning member toward the front end, allows the hemostatic agent to be moved toward the front end via the extrusion tip; A limiting member that restricts the relative movement of the extrusion member toward the front end relative to the positioning member; A switching component capable of switching the state of the limiting component to a restricted state that restricts the relative movement of the extrusion component and a permitted state that does not restrict the relative movement of the extrusion component; and A housing that houses at least a portion of the positioning member, the extrusion member, the restraining member, and the switching member. When the positioning member moves relative to the housing toward the front end side while the limiting member is in the limiting state, the switching member switches the limiting member to the allowing state by applying a force relative to the positioning member in the direction toward the front end side. After the limiting member switches from the limiting state to the allowing state, it remains in the allowing state regardless of whether the positioning member moves relative to the housing.

2. The hemostatic device according to claim 1, characterized in that, The hemostatic device includes a first movable member that moves relative to the restricting member within a first movable region according to the relative movement of the extrusion member relative to the positioning member. The limiting member includes a limiting portion, which is disposed in the first moving area in the limited state and not disposed in the first moving area in the allowed state. The switching member switches the restricting part from being configured in the first moving area to not being configured in the first moving area, thereby switching the restricting member from the restricted state to the allowed state.

3. The hemostatic device according to claim 2, characterized in that, The first movable member has a second engaging portion, which engages with the limiting portion when the limiting portion is disposed in the first movable region, and does not engage with the limiting portion when the limiting portion is not disposed in the first movable region. The limiting member further includes a force-applying part, which applies force to the limiting part in a manner that moves the limiting part from a state in which the limiting part is engaged with the second engaging part toward a state in which the limiting part is not engaged with the second engaging part. The switching member switches the limiting member from the limiting state to the allowing state by switching from the state in which the limiting part is engaged with the second engaging part to the state in which it is not engaged with the second engaging part.

4. The hemostatic device according to claim 3, characterized in that, The switching member moves relative to the first moving member toward the front end as the positioning member moves relative to the housing toward the front end, thereby switching from a state in which the limiting part is engaged with the second engaging part to a state in which it is not engaged with the second engaging part.

5. The hemostatic device according to claim 3 or 4, characterized in that, The force-applying component is a spring.

6. The hemostatic device according to any one of claims 1 to 4, characterized in that, The hemostatic device includes a notification unit that notifies a configuration corresponding to the amount of relative movement of the positioning member relative to the housing toward the front end.

7. The hemostatic device according to claim 6, characterized in that, The hemostatic device includes a second movable member, which moves relative to the housing towards the front end side based on the relative movement of the positioning member relative to the housing towards the front end side. The notification unit notifies the form corresponding to the amount of movement of the second moving member.

8. The hemostatic device according to any one of claims 1 to 4, characterized in that, The hemostatic device includes a third movable member, which moves relative to the housing towards the front end side based on the relative movement of the positioning member relative to the housing towards the front end side. The third movable component has a first magnet. The housing includes a second magnet that is opposed to the first magnet when the switching member sets the limiting member to the permitted state.

9. The hemostatic device according to claim 8, characterized in that, The housing also includes a third magnet, which is disposed on the front end side relative to the second magnet. When the first magnet and the second magnet are facing each other, the magnetic force between the first magnet and the second magnet is greater than the magnetic force between the first magnet and the third magnet when the first magnet and the third magnet are facing each other.

10. The hemostatic device according to any one of claims 1 to 4, characterized in that, The first engaging part is a balloon that can switch between an inflated state and a contracted state. The balloon engages with the opening in the inflated state.

11. The hemostatic device according to any one of claims 1 to 4, characterized in that, When the positioning member moves relative to the housing toward the front end side while the limiting member is in the limiting state, the switching member applies a force toward the front end side to the limiting member by applying a force toward the front end side relative to the positioning member.

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