Holding jig
The retainer system addresses the challenges of managing multiple medical devices during endovascular procedures by using a cam mechanism to enable easy identification, holding, and operation, preventing entanglement and ensuring precise positioning.
Patent Information
- Application Number
- JP2023170235
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-29
- Publication Date
- 2025-04-10
AI Technical Summary
Existing medical device retainers fail to efficiently identify and manage multiple long medical devices during endovascular procedures, leading to entanglement and positional misalignment issues.
A retainer system with a main body featuring a fixed side holder and a moving side holder, supported by a cam mechanism that allows for easy holding and releasing of medical devices through distinct pressing operations, preventing entanglement and misalignment.
The retainer system facilitates easy identification, holding, and selective operation of multiple medical devices, preventing entanglement and ensuring precise positioning during procedures.
Smart Images

Figure 2025059873000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a holder for holding an elongated medical device. [Background technology]
[0002] Intravascular treatment uses various long medical devices such as guidewires and catheters. During an intravascular treatment procedure, the surgeon inserts a wire device such as a guidewire into the body, and then inserts a medical device such as a catheter into the body using the wire as a guide. When treating a complex lesion, multiple medical devices may be inserted into the blood vessel. Each medical device is passed through a wire device, resulting in multiple long devices being inserted into the blood vessel.
[0003] When multiple long devices are inserted into a blood vessel, the surgeon operates them as necessary. At this time, since multiple long devices are present at hand, the surgeon must distinguish and operate the long device to be operated. In addition, it is necessary to prevent the multiple long devices from becoming entangled with each other and the long devices from moving unintentionally during the procedure.
[0004] A holder for holding an elongated medical device at its proximal portion is disclosed in Patent Document 1. By using such a holder, it is possible to prevent the elongated device from shifting out of position. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] Patent Publication No. 2021-115220 Summary of the Invention [Problem to be solved by the invention]
[0006] As described above, when there are multiple long devices, the surgeon needs to identify them and operate and hold them. For this purpose, the surgeon identifies the long devices by placing gauze on them, or by attaching torque devices of different colors to each long device. However, when the procedure becomes complicated, the gauze may come off and make it difficult to identify them, or even if the long devices are identified by the torque device, they may become entangled. In addition, in order to repeatedly operate multiple long devices, it is necessary to hold and release the long devices in the holder many times. For this reason, there is a demand for a holder that makes it easy to identify the long devices while also allowing easy operations of holding and releasing them.
[0007] The present invention has been made to solve the above-mentioned problems, and aims to provide a holder that is easy to hold and release an elongated medical device while facilitating identification of the device. [Means for solving the problem]
[0008] The (1) holder of the present invention which achieves the above-mentioned object is a holder for holding a long medical device, and comprises a main body having a fixed side holding part, and a moving device which supports the movable side holding part so that the movable side holding part can be moved in a direction approaching and moving away from the fixed side holding part, and the moving device moves the movable side holding part from a first position away from the fixed side holding part in a direction approaching the fixed side holding part by a first pressing operation, thereby placing the long device in a second position where it can hold the long device, and moves the movable side holding part from the second position to the first position by a second pressing operation. Effect of the Invention
[0009] The holding device configured as described above can hold and release the long device by a first pressing operation and a second pressing operation, making it easy to selectively operate the long devices even in procedures using multiple long devices.
[0010] (2) In the holder of (1) above, the first pressing operation and the second pressing operation on the movable holding part may be unidirectional operations that move the movable holding part in a direction away from the fixed holding part. This allows the holder to hold and release the elongated device by pressing in the same direction, making it easier to selectively operate the elongated device.
[0011] (3) In the holder of (2) above, the moving device may have an operating unit that moves in one direction, a rotor that rotates around the moving direction as a central axis in coordination with the movement of the moving-side holding unit due to the first pressing operation and the second pressing operation, an elastic body that urges the moving-side holding unit and the rotor in a direction in which the moving-side holding unit approaches the fixed-side holding unit, and a wall portion of a cam groove that is positioned around the rotor and by which the rotor is engaged and disengaged as the rotor rotates, such that when the operating unit is subjected to the first pressing operation, the rotor is disengaged from the wall portion of the cam groove and the elastic body moves the moving-side holding unit to the second position, and when the operating unit is subjected to the second pressing operation, the rotor goes from an unlocked state to an engaged state relative to the wall portion of the cam groove and the moving-side holding unit moves to the first position against the force of the elastic body. This allows the holder to reliably hold and release the movable holding portion by the first pressing operation and the second pressing operation using a simple mechanism.
[0012] (4) In the holder of (1) above, the second pressing operation on the moving-side holder may be an operation in a direction different from that of the first pressing operation, thereby allowing the surgeon to distinguish between an operation for holding the elongated device and an operation for releasing the holding of the elongated device.
[0013] (5) In any one of the holders (1) to (4) above, the main body has a bottom wall portion, The bottom wall may have an external fixing portion that is fixed to an external planar portion, whereby the holder can be fixed externally to reliably prevent the elongated device from shifting out of position.
[0014] (6) The holder according to any one of (1) to (5) above may include a first holder having the fixed-side holder and the movable-side holder, and a second holder disposed at a position spaced apart from the fixed-side holder and the movable-side holder in the longitudinal direction of the elongated device, and the second holder may have an opening through which the elongated device can be inserted, a constricted portion located at the rear of the opening in the insertion direction, and a wide portion located at the rear of the constricted portion in the insertion direction and wider than the constricted portion. This allows the holder to hold the elongated device by the second holder so that it does not shift in position in a planar direction perpendicular to the longitudinal direction. Meanwhile, the second holder allows the elongated device to move in the longitudinal direction, so that the surgeon can move the elongated device forward and backward and rotate the elongated device while it is held by the second holder. In the case of multiple elongated devices, the multiple elongated devices can be prevented from becoming entangled with each other by holding the elongated devices by the second holder and allowing them to be operated, while holding the elongated devices by the first holder when necessary.
[0015] (7) In any of the holders (1) to (6) above, the main body may have a connecting portion that connects the main body of another holder along a direction perpendicular to the longitudinal direction of the elongated device to be held. This allows multiple elongated devices to be held at a constant distance from each other, thereby preventing the multiple elongated devices from becoming entangled.
[0016] (8) In the holder of (1) above, the main body may have an opening into which the long device can be inserted and a constricted portion located on the rear side of the opening in the insertion direction, and the moving device may be arranged so that the moving holding portion can protrude into and retract from the constricted portion. This allows the holder to hold and release the long device at the position of the constricted portion by a pressing operation. [Brief description of the drawings]
[0017] [Figure 1] FIG. 2 is a perspective view of a holder according to the embodiment. [Diagram 2]1A and 1B are diagrams showing a state in which a first holding portion of a first holding body constituting a holder is open, where (a) is a plan view and (b) is a front view. [Diagram 3] 1A and 1B are diagrams showing a state in which a first holding portion of a first holding body constituting the holder is closed, where (a) is a plan view and (b) is a front view. [Figure 4] FIG. 4 is a plan view showing a knock mechanism of the first holding body. [Diagram 5] FIG. 4 is a side view of a second holder that holds a guide wire. [Figure 6] FIG. 2 is a perspective view of the holder, showing a state in which a first pressing operation is being performed with a guide wire placed. [Figure 7] FIG. 11 is a development view showing the positional relationship between the pressing portion, the cam groove, and the engaging protrusion of the rotor that constitute the knock mechanism, in which (a) shows the first position, (b) shows the state when the first pressing operation is performed from the first position, (c) shows the state when the engaging protrusion abuts against the inclined receiving surface after the first pressing operation, and (d) shows the state when the second position is reached after the first pressing operation. [Figure 8] 10A is a development view showing the positional relationship between the pressing portion, the cam groove, and the engagement protrusion of the rotor that constitute the knock mechanism, in which (a) shows the state in the second position, (b) shows the state when a second pressing operation is performed from the second position, and (c) shows the state after the second pressing operation. [Figure 9] 7 is a perspective view of the holder, showing a state in which the holder has been moved from the state in FIG. 6 to a second position. [Figure 10] FIG. 13 is a plan view of a plurality of connected holders. [Figure 11] 1A and 1B are plan views of a holder having a connecting portion for connecting multiple holders, in which (a) shows two holders brought close to each other, and (b) shows two holders connected to each other. [Figure 12] 11A and 11B are plan views of a holder having a connecting portion according to a modified example, in which (a) shows two holders brought close to each other, and (b) shows the two holders connected together. [Figure 13] FIG. 2 is a plan view of a holder in which a first holding body and a second holding body are brought close to each other. [Figure 14] 10A and 10B are plan views of a holder according to a modified example, in which (a) shows the holder in a first position and (b) shows the holder in a second position. [Figure 15] FIG. 11 is a perspective view of a holder according to a second modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that, for the sake of explanation, the dimensional ratios in the drawings may be exaggerated and may differ from the actual ratios.
[0019] The holder 10 according to the embodiment of the present invention holds a long medical device such as a guidewire 100. The long device is not limited to the guidewire 100, and may be other wire devices or medical devices such as a guide extension catheter. In this specification, the side of the guidewire 100 that is inserted into a blood vessel is referred to as the "distal end" or "distal side", and the side at the hand that is operated is referred to as the "base end" or "base end side" or "hand side".
[0020] As shown in FIG. 1, the retainer 10 connects a first retainer 11 and a second retainer 12, each of which retains a guidewire 100, with a connecting member 13 along the longitudinal direction of the retained guidewire 100. The first retainer 11 can hold the guidewire 100 immovable in the longitudinal direction of the guidewire 100 and in a planar direction perpendicular to the longitudinal direction by clamping the guidewire 100 with the first retaining portion 15. The second retainer 12 can hold the guidewire 100 immovable in a planar direction perpendicular to the longitudinal direction by inserting the guidewire 100 into the second retaining portion 16. The retainer 10 is disposed such that the second retainer 12 is located closer to the tip side of the guidewire 100 to be inserted into a blood vessel than the first retainer 11.
[0021] The first holder 11 has a bottom wall portion 21, the lower surface of which serves as an external fixing portion 21a that can be fixed to a surface such as the top surface of a desk, a medical drape, medical tape, the skin of a patient, etc. The external fixing portion 21a can be fixed to an external surface, for example, by double-sided tape. The bottom portion 60 of the second holder 12 also has a lower surface that serves as an external fixing portion 60a, and can be fixed to an external surface.
[0022] As shown in Fig. 2, the first holding body 11 includes a main body 20 having a bottom wall portion 21 and a planar fixed-side holding portion 22 rising from one end of the bottom wall portion 21, and a moving device 23 placed on the main body 20. The moving device 23 includes a planar moving-side holding portion 32 facing the fixed-side holding portion 22, a support portion 33 that supports the moving-side holding portion 32 so as to be movable in a direction approaching and moving away from the fixed-side holding portion 22, a storage portion 30 incorporating a knock mechanism that moves the support portion 33 that holds the moving-side holding portion 32, and a rod-shaped operating portion 34 that protrudes from the moving-side holding portion 32 on both sides in the longitudinal direction of the guidewire 100 held by the moving-side holding portion 32. In Fig. 2, the moving-side holding portion 32 is disposed at a first position separated from the fixed-side holding portion 22. The surgeon can move the movable-side holding part 32 so as to approach or move away from the fixed-side holding part 22 by a first pressing operation and a second pressing operation for pressing the operating part 34 in a direction in which the movable-side holding part 32 moves away from the fixed-side holding part 22. The operating part 34 protrudes from both sides in the longitudinal direction of the guidewire 100 held by the movable-side holding part 32, so that the surgeon can operate it from either side along the longitudinal direction of the guidewire 100, facilitating the operation of holding or releasing the guidewire 100. The operating part 34 may be in another shape, such as a plate shape.
[0023] The fixed-side holding part 22 has an elastic abutment surface member 22a on the surface facing the movable-side holding part 32. The movable-side holding part 32 has an elastic abutment surface member 32a on the surface facing the fixed-side holding part 22. The guidewire 100 is sandwiched between the abutment surface member 22a of the fixed-side holding part 22 and the abutment surface member 32a of the movable-side holding part 32, which are close to each other. Therefore, the guidewire 100 is firmly held by the first holding part 15 consisting of the fixed-side holding part 22 and the movable-side holding part 32 without slipping.
[0024] The first holding body 11 can be made of metal or resin. The size of the first holding body 11 is formed to be within a range of 3 cm to 10 cm in both length and width. However, the first holding body 11 may have dimensions that exceed this dimensional range.
[0025] 3, when the movable holding part 32 moves in a direction approaching the fixed side holding part 22 to reach the second position, the distance between the fixed side holding part 22 and the movable side holding part 32 becomes smaller than the outer diameter of the guidewire 100. This enables the guidewire 100 to be held by the first holding part 15 consisting of the fixed side holding part 22 and the movable side holding part 32. The first holding part 15 can hold the guidewire 100 so as not to move in the longitudinal direction and in a planar direction perpendicular to the longitudinal direction, thereby preventing positional displacement.
[0026] 4, the support part 33 connected to the movable holding part 32 has a rod-shaped pressing part 50 on the opposite side to the movable holding part 32. The pressing part 50 has an uneven part 50a having a plurality of uneven shapes along the circumferential direction at the tip part.
[0027] The storage section 30 has a recess 40 inside into which the pressing section 50 can enter. The side of the recess 40 into which the pressing section 50 enters is the proximal side, and the back side is the distal side. The recess 40 houses an elastic body 52 made of a coil spring, one end of which abuts against the most distal surface of the recess 40, and a rotor 51 that abuts against the proximal end of the elastic body 52 and can rotate inside the recess 40 with the moving direction of the moving side holding section 32 as a central axis. The rotor 51 has a plurality of engagement protrusions 51a protruding in the radial direction on its outer circumferential surface. The engagement protrusions 51a each have an inclined surface 51b that abuts against the uneven portion 50a of the pressing section 50. The inclined surface 51b abuts against the uneven portion 50a of the pressing section 50, so that when the rotor 51 is pressed by the pressing section 50, a biasing force in the rotation direction can be generated for the rotor 51. The inner peripheral surface of the recess 40 is formed with a cam groove 41 with which the engaging protrusion 51a engages and disengages as the rotor 51 rotates.
[0028] As shown in FIG. 1, the second holding body 12 is formed of an elastic block-shaped member. The second holding body 12 can be formed of materials such as rubber and urethane. The second holding body 12 has an opening 61 on the side facing away from the bottom surface portion 60 having the external fixing portion 60a. The second holding body 12 has a groove-shaped second holding portion 16 that faces from the opening 61 toward the bottom surface portion 60. The second holding portion 16 has a narrow constricted portion 62 that is narrower on the inner side than the opening. The narrowed portion 62 has a width smaller than the outer diameter of the guide wire 100 to be held. The second holding portion 16 has a wide portion 63 that is wider than the narrowed portion 62 on the inner side than the narrowed portion 62. A holding surface 64 that becomes the bottom surface of the second holding portion 16 is formed at the innermost portion of the wide portion 63.
[0029] 5, holding surface 64 of second holding body 12 is formed in an inclined shape so that the tip side is located on the bottom surface portion 60 side and the proximal side is located on the opening 61 side. Guidewire 100 is held along holding surface 64, and the proximal side is in a higher position, making it easier for the surgeon to manipulate guidewire 100.
[0030] The second holding section 16 inserts the guidewire 100 from the opening 61, passes the guidewire 100 through the narrowed section 62 having a width smaller than the outer diameter of the guidewire 100 while elastically deforming, and places the guidewire 100 in the wide section 63, thereby holding the guidewire 100 so as not to move in a plane perpendicular to the longitudinal direction, thereby preventing misalignment. The guidewire 100 held by the second holding section 16 can move in the longitudinal direction, so that the surgeon can advance and retreat the guidewire 100 and rotate it while the guidewire 100 is held by the second holding section 16. Holding the guidewire 100 by the second holding section 16 can prevent multiple guidewires 100 from becoming entangled with each other.
[0031] A knock mechanism for moving the movable side holding part 32 in the first holding body 11 will be described. As shown in Fig. 6, in a state where the guide wire 100 is held by the second holding part 16 of the second holding body 12, the guide wire 100 is disposed between the fixed side holding part 22 and the movable side holding part 32. In this state, the surgeon performs a first pressing operation on the operation part 34. For example, the surgeon can perform the first pressing operation for moving the movable side holding part 32 in a direction away from the fixed side holding part 22 by pinching the storage part 30 and one of the operation parts 34 with the thumb and index finger.
[0032] 7(a), the cam groove 41 is formed between two circumferentially adjacent wall portions 42, 42, and has a width that allows the engagement recess 51a of the rotor 51 to slide along the operation direction. The wall portion 42 has, on its end face on the distal side in the operation direction, two inclined receiving surfaces 43, 43 that are inclined in the same direction, and a locking surface 44 that connects between these inclined receiving surfaces 43, 43 and runs along the operation direction.
[0033] 6, the engaging protrusion 51a of the rotor 51 has the inclined surface 51b abutting against the inclined receiving surface 43 and the side surface 51c abutting against the locking surface 44. The engaging protrusion 51a is pressed against and locked to the inclined receiving surface 43 and the locking surface 44 by the biasing force that the rotor 51 receives from the elastic body 52 in the direction opposite to the operating direction, so that the rotor 51 is fixed to the storage section 30.
[0034] When the surgeon performs the first operation from the state shown in Fig. 7(a), as shown in Fig. 7(b), the pressing portion 50 moves in the operating direction, and the uneven portion 50a moves the engaging protrusion 51a of the rotor 51 distal to the wall portion 42. At this time, the engaging protrusion 51a rotates so as to face downward on the paper surface due to the inclined surface of the uneven portion 50a.
[0035] When the surgeon releases the operating unit 34 in the state shown in FIG. 7(b), the rotor 51 and the pressing unit 50 to which the rotor 51 is engaged move proximally due to the biasing force of the elastic body 52, as shown in FIG. 7(c), and the inclined surface 51b of the engaging protrusion 51a abuts against the other inclined receiving surface 43 adjacent in the circumferential direction to the inclined receiving surface 43 with which it was initially abutted. The engaging protrusion 51a abutting against the inclined receiving surface 43 is guided into the cam groove 41 by the biasing force of the elastic body 52, and the rotor 51 and the pressing unit 50 move to the second position as shown in FIG. 7(d). The rotor 51 and the pressing unit 50 are subjected to the biasing force from the elastic body 52 at the second position, and the movement of the moving side holding unit 32 in the direction away from the fixed side holding unit 22 is prevented. As a result, as shown in Figure 9, the movable side holding portion 32 is in a second position close to the fixed side holding portion 22, and the guide wire 100 is clamped and held between the fixed side holding portion 22 and the movable side holding portion 32.
[0036] When the surgeon performs a second pressing operation to move the movable holding part 32 in a direction away from the fixed holding part 22 against the biasing force of the elastic body 52 from the state shown in FIG. 8(a) in which the movable holding part 32 is in the second position, as shown in FIG. 8(b), the rotor 51 is pressed by the uneven part 50a of the pressing part 50, and the engaging protrusion 51a of the rotor 51 moves to the distal side of the wall part 42. At this time, the engaging protrusion 51a rotates toward the lower side of the paper due to the inclined surface of the uneven part 50a. When the surgeon releases the hand in the state shown in FIG. 8(b), the rotor 51 moves to the proximal side due to the biasing force of the elastic body 52, and is engaged and fixed by the engaging protrusion 51a, the inclined receiving surface 43 of the wall part 42, and the engaging surface 44. As a result, the movable holding part 32 is in the first position, and the holding state of the guidewire 100 can be released. The first pressing operation and the second pressing operation are pressing operations in the same direction, and the surgeon can easily hold and release the guidewire 100 with one hand.
[0037] As shown in Fig. 10, a plurality of holders 10 can be connected together, and a different guidewire 100 can be fixed to each holder 10. The holders 10 can be connected to an end face of the storage section 30 and a surface of the fixed side holding section 22 of the first holding body 11 opposite to the surface facing the movable side holding section 32 with double-sided tape. When a plurality of holders 10 are connected together, the holders 10 can be given different numbers or colors to make it easier to identify each holder 10. Also, when different colors are used for each guidewire 100, the corresponding holders 10 may be given the same color.
[0038] 11(a), the holder 10 may be provided with connecting portions 25a, 25b, one of which is concave and the other of which is convex, on a surface of the fixed-side holding portion 22 of the first holding body 11 opposite the side facing the movable-side holding portion 32, and on an end surface of the storage portion 30. In FIG. 11(b), the connecting portions 25a, 25b are engaged so as to mesh with each other, and the holders 10 can be connected to each other along a direction perpendicular to the longitudinal direction of the guidewire 100 being held.
[0039] 12(a), retainer 10 may have connecting portion 26a rising from one end of bottom wall portion 21, and connecting portion 26b protruding from an upper portion of a surface of fixed-side retainer 22 of first retainer 11 opposite to the side facing movable-side retainer 32, and facing bottom wall portion 21. In this case, as shown in FIG. 12(b), connecting portions 26a, 26b can be interlocked in the vertical direction, thereby connecting retainers 10 together along a direction perpendicular to the longitudinal direction of guidewire 100 being retained.
[0040] 13, in retainer 10, first retaining body 11 and second retaining body 12 may be disposed adjacent to each other rather than being spaced apart. In addition, in retainer 10, second retaining body 12 may be disposed closer to the proximal side of guidewire 100 than first retaining body 11.
[0041] The knock mechanism provided in the storage section 30 may be configured so that the first pressing operation and the second pressing operation have different operating directions. As shown in Fig. 14(a), the moving device 80 has an elastic body 82 inside the storage section 81, and the support section 33 connected to the moving side holding section 32 has a movement prevention locking section 84 that is locked at a first position with the inside of the storage section 81. In addition, a second operating section 83 consisting of a push button is provided on the surface of the storage section 81.
[0042] When the moving-side holding section 32 is in the first position, the movement-preventing locking section 84 is locked with the storage section 81, and the moving-side holding section 32 is held so as not to move against the biasing force of the elastic body 82. When the surgeon performs a first pressing operation on the second operating section 83 from above toward the bottom wall section 21 from this state, the locking of the movement-preventing locking section 84 with respect to the storage section 81 is released, and the support section 33 and the moving-side holding section 32 are moved to the second position by the biasing force of the elastic body 82, and can hold the guidewire 100. When the surgeon performs a second pressing operation on the operating section 34 in the direction toward the storage section 81 side from the second position, the support section 33 and the moving-side holding section 32 move toward the storage section 81 side, and when the moving-side holding section 32 is in the first position, the movement-preventing locking section 84 is locked with the storage section 81. As a result, the movable holding section 32 is fixed at the first position, and the held state of the guide wire 100 can be released.
[0043] The holder 90 may have another form. As shown in FIG. 15, the holder 90 has a shape similar to that of the second holder 12 described above, and includes a holder 91 having an opening 92, a constricted portion 93, and a wide portion 94. The holder 90 is provided with a moving device 95 that penetrates the constricted portion 93 from a side surface. The moving device 95 has an operating portion 96 that can be pressed and protrudes from a side surface of the holder 90, and a fixed portion 97 that can be pressed and protrudes from the side surface of the constricted portion 93 and retracts into the side surface. In this form, one surface of the constricted portion 93 is the fixed side holding portion, and the fixed portion 97 is the moving side holding portion. Similar to the moving device 23 described above, the inside of the moving device 95 is provided with a knock mechanism that moves the fixed portion 97 to a first position and a second position in response to a pressing operation of the operating portion 96 in one direction. With this holder 90, it is possible to protrude and fix the fixing portion 97 of the guidewire 100 held by the holding portion 91 by pressing the operation portion 96. Furthermore, by pressing the operation portion 96 with the guidewire 100 fixed, the fixed state of the guidewire 100 by the fixing portion 97 can be released, and the guidewire 100 can be removed from the holder 90.
[0044] As described above, the holder 10 (1) according to this embodiment is a holder 10 for holding a medical elongated device 100, and includes a main body 20 having a fixed-side holder 22, and a moving device 23 for supporting the movable holder 32 so as to be movable in a direction approaching and moving away from the fixed-side holder 22, and the moving device 23 moves the movable holder 32 from a first position away from the fixed-side holder 22 in a direction approaching the fixed-side holder 22 by a first pressing operation to place the elongated device 100 at a second position where the elongated device 100 can be held, and moves the movable holder 32 from the second position to the first position by a second pressing operation. The holder 10 thus configured can hold and release the elongated device 100 by a first pressing operation and a second pressing operation, and therefore can easily operate the elongated device 100 selectively even in a procedure using a plurality of elongated devices 100.
[0045] (2) In the holder 10 described in (1) above, the first pressing operation and the second pressing operation on the movable-side holding part 32 may be a unidirectional operation that moves the movable-side holding part 32 in a direction away from the fixed-side holding part 22. This allows the holder 10 to hold and release the elongated device 100 by pressing operations in the same direction, making it easier to selectively operate the elongated device 100.
[0046] (3) In the holder 10 of (2) above, the moving device 23 includes an operating unit 34 for moving in one direction, a rotor 51 that rotates around a central axis in the direction of movement of the moving-side holder 32 in conjunction with the movement of the moving-side holder 32 by the first pressing operation and the second pressing operation, an elastic body 52 that biases the moving-side holder 32 and the rotor 51 in a direction in which the moving-side holder 32 approaches the fixed-side holder 22, and an elastic body 52 that is located around the rotor 51 and that engages and disengages the rotor 51 as the rotor 51 rotates. and wall portion 42 of cam groove 41, and when operation portion 34 is subjected to a first pressing operation, rotor 51 is released from the locked state with respect to wall portion 42 of cam groove 41 and elastic body 52 moves moving-side holding portion 32 to the second position, and when operation portion 34 is subjected to a second pressing operation, rotor 51 goes from the unlocked state to the locked state with respect to wall portion 42 of cam groove 41 and moving-side holding portion 32 moves to the first position against the bias of elastic body 52. In this way, holder 10 can reliably hold and release moving-side holding portion 32 by the first pressing operation and the second pressing operation with a simple mechanism.
[0047] (4) In the holder 10 described in (1) above, the second pressing operation on the moving-side holding portion 32 may be an operation in a direction different from that of the first pressing operation. This allows the surgeon to distinguish between an operation for holding the elongated device 100 and an operation for releasing the holding of the elongated device 100.
[0048] (5) In any one of the holders 10 described above in (1) to (4), the main body 20 includes a bottom wall portion 21, The bottom wall 21 may have an external fixing portion 21a that is fixed to an external planar portion, thereby fixing the holder 10 to the outside and reliably preventing the position of the elongated device 100 from shifting.
[0049] (6) The holder 10 according to any one of (1) to (5) above includes a first holder 11 having a fixed-side holder 22 and a movable-side holder 32, and a second holder 12 disposed at a position spaced apart from the fixed-side holder 22 and the movable-side holder 32 in the longitudinal direction of the elongated device 100, and the second holder 12 may have an opening 61 into which the elongated device 100 can be inserted, a constricted portion 62 located at the rear of the opening 61 in the insertion direction, and a wide portion 63 located at the rear of the constricted portion 62 in the insertion direction and wider than the constricted portion 62. This allows the holder 10 to hold the elongated device 100 by the second holder 12 so that it does not shift in a planar direction perpendicular to the longitudinal direction. Meanwhile, the second holder 12 allows the elongated device 100 to move in the longitudinal direction, so that the surgeon can move the elongated device 100 back and forth and rotate the elongated device 100 while the elongated device 100 is held by the second holder 12. When there are multiple elongated devices 100, the elongated devices 100 can be held by the second holding body 12 and operated, while the first holding body 11 holds the elongated devices 100 when necessary, thereby preventing the multiple elongated devices 100 from becoming entangled with each other.
[0050] (7) In any of the holders 10 described above in (1) to (6), the main body 20 may have a connecting portion 25 that connects the main body 20 of another holder 10 along a direction perpendicular to the longitudinal axis of the held elongated device 100. This allows multiple elongated devices 100 to be held at constant intervals, thereby preventing the multiple elongated devices 100 from becoming entangled.
[0051] (8) In the holder 90 of (1) above, the main body 91 may have an opening 92 into which the elongated device 100 can be inserted and a constricted portion 93 located on the rear side of the opening 92 in the insertion direction, and the moving device 95 may be arranged so that the moving side holding portion 97 can protrude into and retract into the constricted portion 93. In this way, the holder 90 can hold and release the elongated device 100 at the position of the constricted portion 93 by a pressing operation.
[0052] The present invention is not limited to the above-described embodiment, and various modifications can be made by those skilled in the art within the technical concept of the present invention. [Explanation of symbols]
[0053] 10 Holder 11 First holding body 12 Second holding body 13 Connecting members 15 1st holding part 16 Second holding part 20 Main unit 21 Bottom wall 22 Fixed side holding part 23 Mobile Devices 25 Connecting part 26 Connecting part 30 Storage area 32 Moving side holding part 33 Support part 34 Control section 40 Recess 41 Cam groove 42 Wall 43 Inclined receiving surface 44 Locking surface 50 Pressing part 50a Uneven part 51 Rotor 51a Engagement protrusion 51b Slope 51c side 52 Elastic Body 60 Bottom part 61 Opening 62 Waist 63 Wide section 64 Holding surface
Claims
1. A holder for holding a long medical device, A main body having a fixed side holding portion; a moving device that supports the moving side holding part so as to be movable in a direction approaching and moving away from the fixed side holding part, The moving device is a holder that, by a first pressing operation, moves the movable side holding part from a first position away from the fixed side holding part in a direction approaching the fixed side holding part to place it in a second position where the long device can be held, and by a second pressing operation, moves and places the movable side holding part from the second position to the first position.
2. The holder according to claim 1 , wherein the first pressing operation and the second pressing operation on the movable holding part are unidirectional operations that move the movable holding part in a direction away from the fixed holding part.
3. The moving device is An operation unit that moves in the one direction; a rotor that rotates in association with the movement of the moving-side holding part by the first pressing operation and the second pressing operation, with the moving direction as a central axis; an elastic body that biases the movable side holding portion and the rotor in a direction in which the movable side holding portion approaches the fixed side holding portion; a wall portion of a cam groove located around the rotor, the wall portion being adapted to engage and disengage the rotor as the rotor rotates; When the operating portion is subjected to the first pressing operation, the rotor is released from the locked state with respect to the wall portion of the cam groove, and the movable-side holding portion is moved to the second position by the elastic body.
3. The holder according to claim 2, wherein when the operating portion is subjected to the second pressing operation, the rotor goes from an unlocked state to an engaged state with respect to the wall portion of the cam groove, and the movable holding portion moves to the first position against the force of the elastic body.
4. The holder according to claim 1 , wherein the second pressing operation on the moving side holding portion is an operation in a direction different from that of the first pressing operation.
5. The body includes a bottom wall. The holder according to claim 1 , wherein the bottom wall portion has an external fixing portion fixed to an external surface portion.
6. a first holder having the fixed side holder and the movable side holder; a second holder disposed at a position spaced apart from the fixed side holder and the movable side holder in a longitudinal direction of the elongated device, The holder according to claim 1, wherein the second holder has an opening through which the long device can be inserted, a narrowed portion located at the rear of the opening in the insertion direction, and a widened portion located at the rear of the narrowed portion in the insertion direction and wider than the narrowed portion.
7. The holder according to any one of claims 1 to 6, wherein the main body has a connecting portion that connects the main body of another holder along a direction perpendicular to the longitudinal axis of the elongated device being held.
8. the main body has an opening into which a long device can be inserted and a narrowed portion located on a rear side of the opening in an insertion direction, The holder according to claim 1 , wherein the moving device is disposed so that the moving holding portion can protrude into and retract from the constricted portion.
Citation Information
Patent Citations
Catheter and fixing tool of guide wire
JP2021115220A