Locking mechanism, appliance connector, container connector, and connecting appliance

Abstract

The present invention provides a locking mechanism, an appliance connector, a container connector, and a connecting tool, which can improve operability and prevent the engagement from being released due to pulling. The locking mechanism (160a) comprises: an engaged portion (78) of a container connector (20) and an engaging component (160) of the appliance connector (100). The engaging component (160) comprises: an operating portion (165), a fulcrum portion (168) formed continuously with the operating portion (165) and in contact with the container connector (20) when the operating portion (165) is pressed, an engaging portion (161) formed continuously with the fulcrum portion (168) and engaged with the engaging portion (78), a deformation portion (166) formed continuously with the engaging portion (161) and moving the engaging portion (161) by bending when the operating portion (165) is pressed, and a fixing portion (169) formed continuously with the deformation portion (166) and fixed to the edge of the hole (131).

Description

Technical Field

[0001] The present invention relates to a locking mechanism, a tool connector, a container connector, and a connecting tool for connecting two components and locking an engaging portion of one component and an engaged portion of the other component in an engaged state. Background Art

[0002] Conventionally, there is known a connection tool for connecting a container and a tool in order to collect a liquid medicine in a container such as a medicine bottle by a tool such as a syringe. The connection tool is known to include: a container connector fixed to the container mouth; and a tool connector having an opening at one end, and the container connector is connected by inserting the container connector from the opening to fix the tool.

[0003] Among the above-mentioned connecting tools, there is known a connecting tool that maintains the connection state of the tool connector and the container connector by engaging an engaging portion provided on the peripheral wall of the tool connector with an engaged portion provided on the outer peripheral surface of the container connector.

[0004] The engaging portion is arranged in a hole formed in the peripheral wall of the tool connector, and the midway portion is arranged at one end of a longitudinal engaging member fixed to the peripheral wall. The other end of the engaging member constitutes a pressing portion pressed by an operator toward the inside of the tool connector.

[0005] When the operator presses the pressing portion, the engaging member rotates around the fixing portion fixed to the device connector, thereby causing the engaging portion to move in a direction away from the engaged portion of the container connector. When releasing the connection between the device connector and the container connector, the operator presses the pressing portion to move the engaging portion to a position where the engagement with the engaged portion is released, and then removes the container connector from the device connector (see, for example, Patent Document 1).

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: International Publication No. 2018 / 186361 Summary of the invention

[0009] Technical problem to be solved by the invention

[0010] However, in a component in which a fixed portion serving as a rotation center is arranged between the engaging portion and the pressing portion as in the above-mentioned engaging component, when an attempt is made to remove the container connector from the appliance connector, the engaging portion of the appliance connector and the engaged portion of the container connector may be disengaged.

[0011] That is, when an attempt is made to remove the container connector from the appliance connector, the engaging portion is pressed by the engaged portion, and a rotational moment is generated relative to the engaging member, which moves the engaging portion in a direction away from the engaged portion with the fixing portion as the center. Therefore, when an attempt is made to remove the container connector from the appliance connector with a predetermined force, the engaging portion moves due to the rotational moment generated in the engaging member, and as a result, the engagement between the engaging portion and the engaged portion may be released.

[0012] For example, in a connector that connects a container containing a drug solution and a syringe, it is not preferable to release the engagement between the engaging portion of the instrument connector and the engaged portion of the container connector against the operator's will.

[0013] Therefore, a locking component having a structure in which the fixing portion is arranged on the side opposite to the pressing portion with the locking portion interposed therebetween is considered. However, in this structure, in order to release the locking of the locking portion and the locked portion, the pressing portion needs to be pressed in a direction away from the contour body, which leads to poor operability.

[0014] Therefore, the present invention provides a locking mechanism, a tool connector, a container connector, and a connecting tool that can improve operability and prevent the disengagement of an engaging portion and an engaged portion due to pulling.

[0015] Technical solutions for solving technical problems

[0016] The locking mechanism of the present invention is a locking mechanism that locks the engagement of a first component having a barrel portion (trunk) that is cylindrical and formed with a hole that passes through in the radial direction and a second component that is inserted into the barrel portion from one end of the barrel portion, and comprises: an engaged portion that is formed on the outer surface of the second component; an engaging component that is an engaging component that is fixed at one end to the edge of the hole and is longer in the axial direction of the barrel portion, and comprises: an operating portion that is formed at the other end and has a gap between the second component and the radial direction, a fulcrum portion that is formed continuously with the operating portion in the axial direction of the barrel portion and contacts the second component when the operating portion is pressed inwardly in the radial direction, an engaging portion that is formed continuously with the fulcrum portion in the axial direction and is configured to be a protrusion that protrudes inwardly in the radial direction and with which the engaged portion is engaged in the axial direction, and a deforming portion that is formed continuously with the engaging portion in the axial direction and that bends when the operating portion is pressed inwardly in the radial direction so as to move the engaging portion outwardly in the radial direction.

[0017] The device connector of the present invention comprises: a barrel portion, which is fixed to the container, has a container-side flow path structure portion inside, and is configured to be cylindrical so that a container connector having a clamping portion on the outer surface can be inserted from one end, and a hole is formed at a position opposite to the container connector in the radial direction; a device-side flow path structure portion, which is accommodated in the barrel portion and communicates with the container-side flow path structure portion when the container connector is inserted into the barrel portion; a clamping member, which is a clamping member that is fixed at one end at the edge of the hole and is longer in the axial direction of the barrel portion, and has: a hole is formed at the other end and has a hole between the container connector and the barrel portion in the radial direction. An operating portion with a gap, a fulcrum portion which is formed continuously with the operating portion in the axial direction and contacts the container connector when the operating portion is pressed inward in the radial direction, an engaging portion which is formed continuously with the fulcrum portion in the axial direction and is configured to be a protrusion protruding inward in the radial direction and is engaged with the engaged portion in the axial direction when the container-side flow path structure portion and the instrument-side flow path structure portion are connected, and a deformation portion which is formed continuously with the engaging portion in the axial direction and moves the engaging portion outward in the radial direction by bending when the operating portion is pressed inward in the radial direction.

[0018] The container connector of the present invention comprises: an insertion portion, which has a cylindrical barrel portion having an instrument side flow path structure portion inside and formed with a hole penetrating in the radial direction, and is configured to be inserted into the barrel portion from one end of the barrel portion of the instrument connector to which the instrument is fixed; a container fixing portion, which is fixed to the container; a container side flow path structure portion, which is formed inside the insertion portion and the container fixing portion, and is connected to the container when the container fixing portion is fixed to the container, and is connected to the instrument side flow path structure portion when the insertion portion is inserted into the barrel portion; and a clamped portion, which comprises: an operating portion, and a clamped portion connected to the operating portion in the axial direction of the barrel portion. A fulcrum portion is formed continuously in the axial direction and contacts the insertion portion when the operating portion is pressed inwardly in the radial direction of the barrel portion, a snap-fitting portion is formed continuously in the axial direction with the fulcrum portion and is configured as a protruding protrusion protruding inwardly in the radial direction, and a deformation portion is formed continuously in the axial direction with the snap-fitting portion and is bent so as to move the snap-fitting portion outwardly in the radial direction when the operating portion is pressed inwardly in the radial direction, and is snap-fitted in the snap-fitting portion of the snap-fitting component of the instrument connector when the container-side flow path structural portion and the instrument-side flow path structural portion are connected, and is formed in the insertion portion.

[0019] The connection device of the present invention comprises: a container connector which is fixed to a container and has a container-side flow path structure portion inside and a snap-fit ​​portion formed on the outer surface, and an instrument connector. The instrument connector comprises: a barrel portion which is configured as a cylinder into which the container connector can be inserted from one end and has a hole formed at a position opposite to the container connector in the radial direction; an instrument-side flow path structure portion which is accommodated in the barrel portion and communicates with the container-side flow path structure portion when the container connector is inserted into the barrel portion; a snap-fit ​​component which is a snap-fit ​​component which is longer in the axial direction of the barrel portion and has one end fixed to the edge of the hole, and comprises: an operating portion which is formed at the other end and has a gap with the container connector in the radial direction, and a gap which is formed with the operating portion at the position opposite to the container connector in the radial direction. A fulcrum portion which is formed continuously in the axial direction and contacts the container connector when the operating portion is pressed inward in the radial direction, an engaging portion which is formed continuously in the axial direction with the fulcrum portion and is configured to be a protrusion which protrudes inward in the radial direction and is engaged with the engaged portion in the axial direction when the container-side flow path structure portion and the instrument-side flow path structure portion are connected, and a deformation portion which is formed continuously in the axial direction with the engaging portion and which bends when the operating portion is pressed inward in the radial direction so as to move the engaging portion outward in the radial direction.

[0020] Effects of the Invention

[0021] According to the present invention, it is possible to provide a locking mechanism, a tool connector, a container connector, and a connecting tool that can improve operability and prevent the disengagement of an engaging portion and an engaged portion due to pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a perspective view showing the structure of the appliance connector according to the first embodiment of the present invention.

[0023] Figure 2 It is a cross-sectional view showing the structure of the connecting tool.

[0024] Figure 3 This is a side view showing a structure of the same connecting tool with a portion cut away.

[0025] Figure 4 It is a perspective view showing the structure of a container connector used in the same connecting tool.

[0026] Figure 5 It is a side view showing the structure of the container connection member.

[0027] Figure 6 It is a bottom view showing the structure of the container connection piece.

[0028] Figure 7 It is a top view showing the structure of the container connection piece.

[0029] Figure 8 It is a cross-sectional view showing the structure of the container connection member.

[0030] Fig. 9 It is a perspective view showing the structure of a container cover used in the container connector.

[0031] Fig.10 It is a top view showing the structure of the container connector body.

[0032] Fig.11 It is a cross-sectional view showing a state where the container connector is fixed to the container.

[0033] Fig.12 It is a cross-sectional view of the main parts showing the state where the container connector is connected to the container.

[0034] Fig.13 It is a perspective view showing the structure of a needle member used in the container connector.

[0035] Fig.14 It is a top view showing the structure of the container connecting pin.

[0036] Fig.15 It is a side view showing the structure of the container connecting pin.

[0037] Fig.16 It is a perspective view showing the structure of a container cover used in the container connector.

[0038] Fig.17 It is a side view showing the structure of the container cover.

[0039] Fig.18 It is a side view showing the structure of the container cover.

[0040] Fig.19 It is a bottom view showing the structure of the container cover.

[0041] Fig. 20 It is a cross-sectional view showing the structure of the container cover.

[0042] Fig.21 It is a cross-sectional view showing the structure of the container cover.

[0043] Fig. 22 It is a perspective view showing the structure of a container sealing member used in a container connector.

[0044] Fig.23 It is a side view showing the structure of the container seal.

[0045] Fig.24It is a perspective view showing the structure of an appliance connector used in the same connection tool.

[0046] Fig.25 It is a side view showing the structure of the device connection member.

[0047] Fig.26 It is a side view showing the structure of the device connection member.

[0048] Fig. 27 It is a cross-sectional view showing the structure of the device connection member.

[0049] Fig.28 It is a perspective view showing the structure of one contour structure component used in the device connector.

[0050] Fig.29 It is a side view showing the structure of the structural component of the same contour.

[0051] Fig.30 It is a side view showing the structure of another contour structure component used in the equipment connector.

[0052] Fig.31 It is a perspective view showing the structure of a needle holder used in the instrument connector.

[0053] Fig.32 It is a perspective view showing the structure of an inner sleeve used in the connecting tool.

[0054] Fig.33 It is a side view showing the structure of the same inner sleeve.

[0055] Fig.34 It is a bottom view showing the structure of the same inner sleeve.

[0056] Fig.35 This is a perspective view showing the structure of a headgear used in the device connector.

[0057] Fig.36 It is a side view showing the structure of the headgear.

[0058] Fig.37 It is a side view showing the structure of the headgear.

[0059] Fig.38 It is a top view showing the structure of the headgear.

[0060] Fig.39 It is a bottom view showing the structure of the headgear.

[0061] Fig.40 It is a cross-sectional view showing the structure of the headgear.

[0062] Fig.41This is a perspective view showing the structure of a stopper sleeve used in the connecting tool.

[0063] Fig.42 It is a cross-sectional view showing the structure of the same stop sleeve.

[0064] Fig.43 It is a cross-sectional view showing the structure of the same stop sleeve.

[0065] Fig.44 This is an explanatory diagram for explaining engagement between an engaging member used in an appliance connector and an engaged portion used in a container connector.

[0066] Fig.45 This is an explanatory diagram for explaining the engagement between the engaging member and the engaged portion.

[0067] Fig.46 This is an explanatory diagram for explaining the engagement between the engaging member and the engaged portion.

[0068] Fig.47 This is an explanatory diagram for explaining the release of the engagement between the engaging member and the engaged portion.

[0069] Fig.48 This is an explanatory diagram for explaining the connection between the appliance connector and the container connector.

[0070] Fig.49 This is an explanatory diagram for explaining the connection between the appliance connector and the container connector.

[0071] Fig.50 This is an explanatory diagram for explaining the connection between the appliance connector and the container connector.

[0072] Fig.51 This is an explanatory diagram for explaining the connection between the appliance connector and the container connector.

[0073] Fig.52 This is an explanatory diagram for explaining the connection between the appliance connector and the container connector.

[0074] Fig.53 This is an explanatory diagram for explaining the connection between the appliance connector and the container connector.

[0075] Fig.54 This is an explanatory diagram for explaining the connection between the appliance connector and the container connector.

[0076] Fig.55 It is a perspective view showing the structure of a tool connection fitting according to a second embodiment of the present invention.

[0077] Fig.56 It is a cross-sectional view showing the structure of the device connection member. DETAILED DESCRIPTION

[0078] use Figures 1 to 54 , a connection device 10 according to a first embodiment of the present invention will be described.

[0079] Figure 1 This is a perspective view showing a structure of the connecting tool 10 with a portion cut away. Figure 2 It is a cross-sectional view showing the structure of the connecting tool 10 . Figure 3 This is a side view showing a structure of the connecting tool 10 with a portion cut away. Figure 3 Relative to Figure 2 , a state after the contour body main body 111 is rotated 90 degrees around the axis of the contour body main body 111. Figure 4 It is a perspective view showing the structure of the container connector 20 used in the connector 10. Figure 5 It is a side view showing the structure of the container connector 20. Figure 6 It is a bottom view showing the structure of the container connector 20.

[0080] Figure 7 It is a top view showing the structure of the container connector 20. Figure 8 It is a cross-sectional view showing the structure of the container connector 20. Fig. 9 It is a perspective view showing the structure of the container fixing portion main body 40 used in the container connector 20 . Fig.10 It is a plan view showing the structure of the container fixing portion main body 40 . Fig.11 It is a cross-sectional view showing a state where the container connector 20 is fixed to the container 1 . Fig.12 It is a cross-sectional view of main parts showing the process of connecting the container connector 20 to the container 1.

[0081] Fig.13 It is a perspective view showing the structure of the needle member 60 used in the container connector 20 . Fig.14 It is a plan view showing the structure of the needle member 60 . Fig.15 It is a side view showing the structure of the needle member 60. Fig.16 It is a perspective view showing the structure of the container fixing part 30 used in the container connector. Fig.17 It is a side view showing the structure of the container fixing portion 30 . Fig.18 is a side view showing the structure of the container fixing portion 30, and is a view showing the Fig.17 A side view of the middle container fixing portion 30 after being rotated 90 degrees around the axis.

[0082] Fig.19 It is a bottom view showing the structure of the container fixing portion 30 . Fig. 20 It means along Fig.18The illustrated diagram is a cross-sectional view of the container cap in a state after being cut along the F20-F20 line. Fig.21 It means along Fig.17 The container fixing portion 30 is a cross-sectional view of the container fixing portion 30 in a state cut along the line F21-F21. Fig. 22 It is a perspective view showing the structure of the container sealing material 90 used in the container connector 20. Fig.23 It is a side view showing the structure of the container seal 90.

[0083] Fig.24 It is a perspective view showing the structure of the appliance connector 100 used in the connecting tool 10 . Fig.25 It is a side view showing the structure of the appliance connecting fitting 100 . Fig.26 It is a side view showing the structure of the appliance connecting fitting 100 . Fig. 27 2 is a cross-sectional view showing the structure of the appliance connection fitting 100 . Fig.28 1 is a perspective view showing the structure of one contour structure member 132 used in the equipment connection fitting 100 . Fig.29 1 is a side view showing the structure of the outline structural member 132 .

[0084] Fig.30 It is a side view showing the structure of another contour structure member 132 used in the equipment connection fitting 100 . Fig.31 It is a perspective view showing the structure of the needle holder 122 used in the instrument connector 100. Fig.32 It is a perspective view showing the structure of the inner sleeve 140 used in the equipment connection fitting 100 . Fig.33 It is a side view showing the structure of the inner sleeve 140. Fig.34 It is a bottom view showing the structure of the inner sleeve 140.

[0085] Fig.35 It is a perspective view showing the structure of the head cover 180 used in the equipment connection tool 100. Fig.36 It is a side view showing the structure of the headgear 180. Fig.37 It is a side view showing the structure of the headgear 180. Fig.38 It is a top view showing the structure of the headgear 180. Fig.39 It is a bottom view showing the structure of the headgear 180. Fig.40 It is a cross-sectional view showing the structure of the headgear 180. Fig.41 It is a perspective view showing the structure of the stopper sleeve 230 used in the connecting tool 10. Fig.42 It is a cross-sectional view showing the structure of the stopper sleeve 230 . Fig.42 The figure shows a state where the two first arm portions 231 of the stopper sleeve 230 are cut at different cutting positions. Fig.43It is a cross-sectional view showing the structure of the stop sleeve, which is relative to Fig.42 The stop sleeve 230 shown is a cross-sectional view of a state in which the stop sleeve 230 is rotated 90 degrees around the axis. Fig.43 The figure shows a state where the two first arm portions 231 of the stopper sleeve 230 are cut at different cutting positions.

[0086] Figures 44 to 46 This is an explanatory diagram for explaining the engagement between the engaging member 160 used in the appliance connector 100 and the engaged portion 78 used in the container connector 20 . Fig.47 This is an explanatory diagram for explaining the disengagement of the engagement member 160 and the engaged portion 78 . Figures 48 to 54 This is an explanatory diagram for explaining the connection between the appliance connector 100 and the container connector 20 .

[0087] like Figure 1 , Figure 2 and Fig.11 As shown, the connector 10 includes: a container connector 20 that can be fixedly formed on the container 1, and an instrument connector 100 that can be fixedly formed on the cylinder 8 of the syringe 7, which is an example of an instrument, and can be detachably connected to the container connector 20. The connector 10 has a liquid flow path L1 that communicates with the container 1 and the syringe 7, and the liquid medicine in the container 1 can be collected by the syringe 7 through the liquid flow path L1. In addition, the connector 10 has a gas flow path L2 that communicates the container 1 and the air bag 152 described later, and the pressure in the container 1 can be kept constant through the gas flow path L2. The upper and lower directions of the connector 10 are set based on the state in which the container 1 is arranged at the bottom and the syringe 7 is arranged at the top.

[0088] like Fig.11 As shown, the container 1 is formed into a bottomed cylindrical shape capable of storing a liquid medicine. The container 1 includes, for example, a cylindrical body 2, a bottom wall 3 formed at the bottom end of the body 2 and sealing the body 2, a cylindrical neck 4 formed at the upper end of the body 2 and having a smaller diameter than the body 2, a flange 5 formed at the upper edge of the neck 4, and a plug 6 fixed in the opening of the neck 4 and sealing the opening of the neck 4.

[0089] The plug 6 is formed of a resin such as rubber or an elastomer and has flexibility. In addition, the plug 6 is formed so that the hole formed by the needle portion 62 of the needle member 60 described later inserted into the container connector 20 can be sealed liquid-tightly and air-tightly by restoring force after the liquid needle 170 and the gas needle 175 move.

[0090] like Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the container connector 20 includes: a container fixing portion 30 that can be fixedly formed on the container 1 , a sealing cover 70 fixed to the container fixing portion 30 , and a container sealing member 90 provided on the sealing cover 70 .

[0091] like Figure 2 As shown, the container fixing portion 30 includes: a liquid flow path structure portion L3 constituting a part of the liquid flow path L1, and a gas flow path structure portion L4 constituting a part of the gas flow path L2. Figure 2 As shown, specifically, the container fixing portion 30 includes: a container fixing portion main body 40 formed to be fixable to the container 1 ; and a needle member 60 fixed to the container fixing portion main body 40 and having the flow path structures L3 and L4 therein.

[0092] The container fixing part body 40 is configured to be fixed to the container 1 in a state where the needle member 60 is inserted into the stopper 6 of the mouth of the container 1. Specifically, the container fixing part body 40 includes a base 41 to which the needle member 60 is fixed, two arm portions 42 provided on the base 41, and an engaging portion 43 provided on each of the two arm portions 42 and engageable with the neck 4 of each container 1.

[0093] like Fig.10 As shown, the base 41 is formed in a plate shape having a hole 44 at the center for arranging the needle member 60. The hole 44 has an arc portion 45 formed in an arc shape and a rectangular portion 46 formed in a rectangular shape.

[0094] The base 41 is also formed with an engagement claw 47 that engages with the needle member 60 inserted into the hole 44. The engagement claw 47 is arranged on the upper surface of the base 41, for example, near the hole 44. For example, a plurality of engagement claws 47 are formed, and as a specific example, two engagement claws 47 are formed. The two engagement claws 47 are arranged opposite to each other with the hole 44 interposed therebetween.

[0095] Here, if Figure 6 As shown, a circle X is set. The center of the circle X is set at, for example, the same position as the center of curvature of the arc portion 45 of the hole 44. The axis of the circle X is set to C3.

[0096] The engaging claw 47 includes a base 48 extending upward from the base 41 and configured in a long plate shape, and a claw 49 formed at the upper end of the base 48. The surface of the claw 49 opposite to the surface facing the other engaging claw 47 is configured as an inclined surface whose lower end is located radially outside the hole 44 compared to the upper end of the surface.

[0097] like Fig. 9As shown, two wrists 42 are provided on the base 41. The two wrists 42 are arranged at positions 180 degrees apart around the axis C3 of the circle X. One wrist 42 has flexibility that allows one engaging portion 43 to move in a direction approaching or away from the axis C3 of the circle X set on the base 41. The other wrist 42 has flexibility that allows the other engaging portion 43 to move in a direction approaching or away from the axis C3 of the circle X. Figure 6 As shown, the two arm portions 42 are configured to be symmetrical with respect to a first virtual plane P1 passing through the axis C3 of the circle X and parallel to the axis C3.

[0098] A part of the arm 42 is located above one end of the base 41 side of the arm 42. Specifically, the arm 42 includes a first arm 50, a folded portion 51, and a second arm 52.

[0099] The first arm portion 50 is continuous with the base portion 41 and is formed in a plate shape extending upward. The folded portion 51 is continuous with the first arm portion 50 and is formed in a shape folded downward relative to the first arm portion 50. The second arm portion 52 is formed in a continuous manner with the folded portion 51. The second arm portion 52 extends further downward than the base portion 41 and is formed in a shape in which its front end portion is bent toward the axis C3 side. The engaging portion 43 is provided at the front end of the second arm portion 52.

[0100] The arm 42 thus constructed moves the engaging portion 43 by bending the first arm 50, the folded portion 51, and the second arm 52. The arm 42 has, for example, a certain thickness. Alternatively, in order to make it easier for the engaging portion 43 to swing around the folded portion 51, the folded portion 51 may be formed thinner than the first arm 50 and the second arm 52.

[0101] The engaging portion 43 is formed in a plate shape that is bent from the top to the bottom away from the axis C3 along the axis C3. The upper end of the engaging portion 43 is formed in a contact portion 53 that contacts the neck 4 of the container 1. The surface of the engaging portion 43 on the axis C3 side is formed as a guide surface 54 that guides the flange 5 of the container 1 and the neck 4 to the contact portion 53. The engaging portion 43 on one side and the engaging portion 43 on the other side are formed in a symmetrical shape with respect to a first virtual plane P1 that passes through the axis C3 of the circle X and is parallel to the axis C3.

[0102] In addition, the engaging portion 43 is configured such that the contact portion 53 contacts the neck 4 of the container 1 at two points. In other words, the pair of contact portions 53 contacts the neck 4 at four points. In addition, the guide surface 54 of the engaging portion 43 or the other end edge 56 described later is configured such that it contacts the flange 5 at two points in the process of guiding the neck 4 to the contact portion 53.

[0103] Specifically, the engaging portion 43 is symmetrical with respect to the second virtual plane P2 passing through the axis C3 of the circle X and orthogonal to the first virtual plane P1. When the engaging portion 43 is cut along a section orthogonal to the axis C3, the cross-sectional shape of the engaging portion 43 is substantially V-shaped.

[0104] In other words, on the cross-section of the guide surface 54 that is orthogonal to the axis C3 of the circle X, the second virtual plane P2 side of the guide surface 54 is arranged at a position away from the axis C3 relative to the two ends of the guide surface 54 separated by the second virtual plane P2 in a direction parallel to the second virtual plane P2 in a direction orthogonal to the axis C3.

[0105] Furthermore, the engagement portion 43 is inclined with respect to the up-down direction so that the lower end of the engagement portion 43 is located farther from the other engagement portion 43 than the upper end of the engagement portion 43 .

[0106] It should be noted that, here, the vertical direction is set for the connector 10 based on the state where the container 1 is arranged at the bottom and the syringe 7 is arranged at the top as described above. Therefore, in the container connector 20, the vertical direction is parallel to the axis C3.

[0107] In addition, if Figure 5 and Figure 6 As shown in FIG. 1 , the engaging portion 43 is formed into a curved shape that is convex toward one side away from the other engaging portion 43. In addition, the circumferential length of the lower end of the engaging portion 43 is set to be longer than the circumferential length of the upper end of the engaging portion 43. In addition, the circumferential length of the lower end of the engaging portion 43 is set to be longer than the length from the upper end to the lower end of the engaging portion 43 along the vertical direction of the engaging portion 43.

[0108] Here, the length of the engagement portion 43 along the circumferential direction refers to the length of the engagement portion 43 around the axis C3.

[0109] The guide surface 54 is inclined with respect to the axis C3 , that is, in the up-down direction, so that the lower end of the guide surface 54 is located farther from the axis C3 than the upper end of the guide surface 54 .

[0110] like Figure 5 and Figure 6 As shown in FIG. 1 , the guide surface 54 is formed as a curved surface convex to the side away from the axis C3. Specifically, the portion connecting the circumferential center of the upper end of the guide surface 54 to the circumferential center of the lower end is formed as a straight line inclined to the axis C3. Moreover, the guide surface 54 is formed as a curved surface symmetrical with respect to the straight line portion. Here, the portion connecting the circumferential center of the upper end of the guide surface 54 to the circumferential lower end is a portion located on the second virtual plane P2.

[0111] The circumferential length of the lower end of the guide surface 54 is set longer than the circumferential length of the upper end of the guide surface 54. The circumferential length of the lower end of the guide surface 54 is set longer than the length of the guide surface 54 from the upper end to the lower end along the vertical direction of the guide surface 54.

[0112] The guide surface 54 and the other end edge 56 described below are configured as curved surfaces that are symmetrical in the circumferential direction with respect to the center in the circumferential direction, and are configured as surfaces that can contact the flange 5 of the container 1 at two points when the container connector 20 is fixed to the container 1. Specifically, the guide surface 54 and the other end edge 56 described below abut against the flange 5 at one point on one side across the second virtual plane P2, and abut against the flange 5 at one point on the other side across the second virtual plane P2. In addition, the flange 5 is supported by the pair of engaging portions 43 at four points.

[0113] Here, the portion of the engaging portion 43 constituting one side across the second virtual plane P2 is the first portion 43A, and the portion constituting the other side across the second virtual plane P2 is the second portion 43B. The first portion 43A and the second portion 43B are symmetrically configured with respect to the second virtual plane P2.

[0114] The first portion 43A includes a first contact portion structure 53A as a part of the contact portion 53 and a first guide surface structure 54A as a part of the guide surface 54. The second portion 43B includes a second contact portion structure 53B as another part of the contact portion 53 and a second guide surface structure 54B as another part of the guide surface 54.

[0115] The first contact portion structure part 53A and the second contact portion structure part 53B are configured to be symmetrical with respect to the second virtual plane P2. The first guide surface structure part 54A and the second guide surface structure part 54B are formed to be symmetrical with respect to the second virtual plane P2.

[0116] like Figure 6 As shown, the first contact portion structure portion 53A is configured to have an inclined shape that gradually approaches the first virtual plane from one end on the second virtual plane P2 side to the other end.

[0117] The first guide surface structure portion 54A will be described in detail.

[0118] In the cross-section of the first part 43A that is perpendicular to the axis C3 of the circle X, one end edge 55 of the first guide surface structure portion 54A on the second virtual plane P2 side is arranged at a position away from the axis C3 in a direction parallel to the second virtual plane P2 in a direction perpendicular to the axis C3, relative to the other end edge 56 of the guide surface 54 on the opposite side of the second virtual plane P2.

[0119] The one end edge 55 of the first guide surface structure portion 54A is formed, for example, as a straight line whose extension line is inclined relative to the axis C3. Here, the one end edge 55 is a line passing through the center in the circumferential direction of the guide surface 54, and in this embodiment, it is a line on the second virtual plane P2. The one end edge 55 of the first guide surface structure portion 54A is formed, for example, as a straight line whose extension line forms a 45-degree angle with the axis C3.

[0120] The circumferential length of the lower end of the first guide surface structure portion 54A is set to be longer than the circumferential length of the upper end of the first guide surface structure portion 54A. The other end edge 56 is arranged on the side closer to the other engaging portion 43 than the one end edge 55. Moreover, the other end edge 56 is configured to extend in a direction away from both the other engaging portion 43 and the one end edge 55 relative to the one end edge 55.

[0121] The circumferential length from one end edge 55 to the other end edge 56 is set to a length such that, even when the container 1 has the largest outer diameter relative to the barrel portion 2, the barrel portion 2 can be prevented from abutting against the guide surface 54 when the flange 5 abuts against the guide surface 54 and is guided by the guide surface 54 to the abutment portion 53.

[0122] Therefore, if Figure 6 As shown, in the first guide surface structure portion 54A, when viewed from below, an extension line of one end edge 55 on the second virtual plane P2 side and an extension line of another end edge 56 on the opposite side to the one end edge 55 are configured in a crossed fan shape.

[0123] At least the upper end side of the other end edge 56 is formed as a curved portion. The curved portion includes the upper end of the other end edge 56. Specifically, the curved portion extends downward and is formed into a curved shape whose center of curvature is located on the opposite side of the other engaging portion 43 across the guide surface 54. Moreover, the lower end side of the other end edge 56 closer to the lower end than the curved portion is formed into a straight line, for example.

[0124] The first guide surface structure 54A is formed as a curved surface that connects the one end edge 55 and the other end edge 56 formed in this way. For example, the first guide surface structure 54A is formed as a curved surface in which the curved portion of the other end edge 56 gradually approaches the one end edge 55 from the other end edge 56 toward the one end edge 55.

[0125] The first guide surface structure portion 54A constructed in this way has, for example: a portion of the curved surface whose center of curvature is located on the opposite side of the other locking portion 43 across the first guide surface structure portion 54A, and a portion of the curved surface whose center of curvature is located on the other locking portion 43 side relative to the first guide surface structure portion 54A.

[0126] This structure will be described in detail. Fig.12It is a cross-sectional view showing the vicinity of the tangent point A between the first guide surface structure portion 54A and the flange 5 in the process of connecting the container 1 to the container connector 20 . Fig.12 The state after cutting along the cross section passing through the tangent point A and parallel to the axis C3 of the circle X and the tangent line S at the tangent point A. Figure 6 It is indicated by a dotted line. Figure 6 As shown, the guide surface 54 is inclined relative to the second virtual plane P2, for example, when the container connector 20 is viewed from below.

[0127] like Fig.12 As shown, the guide surface 54 is formed as a curved surface whose tangent line S passing through the tangent point A with which the flange 5 contacts is inclined at an angle α with respect to the first virtual plane P1. The angle α is less than 90 degrees.

[0128] like Fig.12 As shown, the first guide surface structure portion 54A is formed as a curved surface whose curvature center Z of a part of the first guide surface structure portion 54A is located on the opposite side of the first virtual plane P1 across the first guide surface structure portion 54A, that is, on the opposite side of the other side of the engaging portion 43. In other words, the guide surface 54 is formed in a shape that gradually expands from the top to the bottom in the axial direction of the circle X, that is, it moves away from the axis C3 as it progresses from the top to the bottom. In addition, in other words, the first guide surface structure portion 54A is formed as a curved surface whose inclination angle α of the tangent line S of the first guide surface structure portion 54A with respect to the first virtual plane P1 decreases as it approaches the abutment portion 53 from the bottom.

[0129] Furthermore, a portion of the first guide surface configuration portion 54A, for example, a lower portion, is configured as a curved surface whose center of curvature is located on the other engagement portion 43 side with respect to the first guide surface configuration portion 54A.

[0130] It should be noted that in the above example, the first guide surface structure portion 54A is described as an example in which the first guide surface structure portion 54A has a portion of a curved surface having a center of curvature located on the opposite side of the other engaging portion 43 across the first guide surface structure portion 54A and a portion of a curved surface having a center of curvature located on the other engaging portion 43 side relative to the first guide surface structure portion 54A. However, the present invention is not limited to this.

[0131] In another example, the first guide surface structure portion 54A may be a structure that does not have a portion that is a curved surface whose center of curvature is located on the opposite side of the other engaging portion 43 across the first guide surface structure portion 54A and gradually expands from the top to the bottom, and is a curved surface whose center of curvature is located on the other engaging portion 43 side relative to the first guide surface structure portion 54A. Therefore, the first guide surface structure portion 54A is a curved surface whose inclination angle of the tangent line S with respect to the first virtual plane P1 decreases as it approaches the first contact portion structure portion 53A.

[0132] The first guide surface structure portion 54A is formed as a curved surface whose curvature radius of a portion of the first guide surface structure portion 54A constituting a portion of the cross-sectional edge of the engagement portion 43 cut along the tangent line S decreases as it moves from the one end edge 55 toward the other end edge 56 .

[0133] Therefore, in this embodiment, the range from the one end edge 55 to the other end edge 56 of the first guide surface structure portion 54A is configured as a curved surface. In addition, in the first guide surface structure portion 54A, the curvature radius on the one end edge 55 side is the largest, and the curvature radius decreases as it progresses toward the other end edge 56 side. Moreover, the curvature radius of the other end edge 56 is the smallest.

[0134] It should be noted that, in the above example, the first guide surface structure portion 54A is described as an example in which the first end edge 55 to the other end edge 56 is formed as a curved surface, but the invention is not limited thereto. In other examples, the first guide surface structure portion 54A is formed as a curved surface whose radius of curvature decreases from the vicinity of the first end edge 55 toward the other end edge 56. Moreover, the range R1 near the first end edge 55 of the first guide surface structure portion 54A is formed as a plane, for example. The plane is a plane parallel to the first end edge 55. The range is a range that the container 1 does not contact.

[0135] Therefore, in this modified example, the range from the vicinity of the one end edge 55 to the other end edge 56 of the first guide surface structure portion 54A is configured as a curved surface. In addition, in the range of the first guide surface structure portion 54A formed as a curved surface, the radius of curvature of one end on the side of the one end edge 55 is the largest, and the radius of curvature decreases as it progresses toward the side of the other end edge 56. Moreover, the radius of curvature of the other end edge 56 is the smallest. It should be noted that when the one end edge 55 is configured as a curve, the radius of curvature of the one end edge 55 is the largest.

[0136] The inclination angle α of the tangent line S at one end of the other end edge 56 of the first guide surface structure 54A on the contact portion 53 side with respect to the first virtual plane P1 is smaller than the inclination angle α of the extension line of the one end edge 55 of the first guide surface structure 54A with respect to the first virtual plane P1.

[0137] In addition, the first guide surface structure portion 54A is configured as a curved surface, that is, a portion of the first guide surface structure portion 54 constituting a portion of the edge of the cross section of the engaging portion 43 orthogonal to the axis C3 is in a curved shape with the center of curvature located on the first virtual plane P1 side. This curvature is set to a curvature that can prevent the barrel portion 2 of the container 1 from abutting against the guide surface 54 during the process of the flange 5 of the container 1 being guided toward the abutment portion 53 by the guide surface 54.

[0138] In addition, the one end edge 55 of the first guide surface structure portion 54A is formed in a straight line or a curved line. In addition, in the present embodiment, as described above, the one end edge 55 is configured in a straight line shape, for example.

[0139] The guide surface 54 having the first guide surface structure portion 54A and the second guide surface structure portion 54B configured in this way, together with the guide surface 54 of the other engaging portion, is configured as a curved surface that can guide the flange 5 of the various containers 1 to the abutment portion 53. Here, the various containers 1 refer to a plurality of containers 1 having different outer diameters of the flange 5. The guide surface 54 is configured so as to guide the container 1 having the flange 5 with the assumed minimum diameter to the maximum diameter to the abutment portion 53.

[0140] Specifically, the area near the one end edge 55 of the first guide surface structure portion 54A is formed so that when the flange 5 of the container 1 is guided to the abutment portion 53 by the guide surface 54 of the pair of engaging portions 43, the flange 5 having the assumed minimum diameter is most likely to abut near the one end 55. Furthermore, the area near the one end edge 55 of the first guide surface structure portion 54A is formed so that the flange 5 having the assumed minimum diameter can be guided to the first abutment portion structure portion 53A.

[0141] The guide surface 54 is pressed open by pressing the container 1 having the flange 5 having the assumed minimum diameter along the axis C3.

[0142] Here, the guide surface 54 is pushed open, which means that the guide surface 54 moves in a direction away from the other engaging portion 43. The area near the one end edge 55 of the first guide surface structure portion 54A is configured as a surface in which the tangent line S of the position where the guide surface 54 contacts the flange 5 is inclined relative to the direction parallel to the axis C3 even when the guide surface 54 is pushed open to the state before the guide surface 54 is engaged with the neck 4 of the container 1.

[0143] It should be noted that even when the outer diameter of the neck 4 is small and the engaging portion 43 does not expand while the neck 4 is clamped by the pair of abutment portions 53, the one end edge 55 is inclined at a predetermined angle, for example 45 degrees, relative to the axis C3. This inclination is such that the guide surface 54 does not collide with the barrel portion 2.

[0144] In addition, the first guide surface structure portion 54A is configured to abut against the flange 5 having a larger diameter than the assumed minimum diameter at the other end edge 56 side than the position where the flange 5 having the assumed minimum diameter abuts, and can be guided toward the abutment portion 53. Furthermore, the other end edge 56 of the first guide surface structure portion 54A is configured to abut against the flange 5 having the assumed maximum diameter. In addition, the other end edge 56 of the first guide surface structure portion 54A is configured to guide the flange 5 having the assumed maximum diameter toward the first abutment portion structure portion 53A.

[0145] Specifically, even when the other end edge 56 of the first guide surface structure portion 54A is pressed open to the state before engaging with the neck 4 of the container 1, the tangent line of the position where the other end edge 56 contacts with the flange 5 is configured to be a line inclined relative to the direction parallel to the axis C3. That is, when the other end edge 56 is further pressed into the container connector 20 from this state, the guide surface 54 is further pressed open, and the contact portion 53 is configured to extend beyond the flange 5 and be engageable with the neck 4.

[0146] The guide surface 54 can also be configured to abut against the flange 5 having a diameter between the minimum and maximum diameters at one point on both sides of the one end edge 55 to guide the flange 5 to the abutment portion 53 .

[0147] In addition, the inclination angle α of the tangent line S of the other end edge 56 of the first guide surface structure portion 54A, i.e., the lower end, on the opposite side to the abutment portion 53, relative to the first virtual plane P1 is larger than the inclination angle α of the extension line of the one end edge 55 of the first guide surface structure portion 54A relative to the first virtual plane P1.

[0148] In addition, at the upper end R2, which is one end of the first guide surface structure 54A on the side of the contact portion 53, the inclination angle α of the tangent line S with respect to the first virtual plane P1 decreases as it moves from the one end edge 55 to the other end edge 56. It should be noted that the upper end R2 is a range near the contact portion 53 in the first guide surface structure 54A. In addition, at the lower end R3 on the opposite side of the first guide surface structure 54A with respect to the contact portion 53, the inclination angle α of the tangent line S with respect to the first virtual plane P1 increases as it moves from the one end edge 55 to the other end edge 56. It should be noted that the lower end R3 is a range near the lower end of the guide surface 54.

[0149] The guide surface 54 having the first guide surface structure portion 54A and the second guide surface structure portion 54B thus configured can guide the container 1 having the outer diameter of the flange 5 of the container 1 being 32 mm or less toward the abutment portion 53. Figure 6 In FIG. 1 , the flange 5 of the container 1 having a diameter (outer diameter of the flange 5) of 13 mm and the flange 5 of the container 1 having a diameter of 20 mm are indicated by two dotted lines. Figure 6, a state in which the flange 5 having the largest diameter is assumed to be in contact with the other end edge 56 is shown.

[0150] The tangent point A between the guide surface 54 and the flange 5 of the container 1 moves in the guide surface 54 by pressing the container connector 20 relative to the container 1. The trajectory of the tangent point A is the contact line S1. The contact line S1 is a line along the second virtual plane P2 when viewed from below.

[0151] In the container connector 20, the position of the tangent point A between the container 1 and the guide surface 54 is different depending on the size of the caliber of the container 1. Specifically, in the case of a small-diameter container 1, the tangent point A is arranged at a position close to the second virtual plane P2 of the guide surface 54. In the case of a large-diameter container 1, the tangent point A is arranged at a position away from the second virtual plane P2 of the guide surface 54. The flange 5 of the container 1 having the flange 5 of the assumed maximum diameter abuts against the other end edge 56.

[0152] In addition, if Figure 6 As shown in FIG. 1 , since the guide surface 54 is configured in a fan shape, the circumferential length of the guide surface 54 around the axis C3 is increased. Specifically, the circumferential length of the other end of the guide surface 54 is longer than the circumferential length of the one end of the guide surface 54 on the contact portion 53 side. Therefore, the container 1 with a relatively small diameter contacts the area on the one end side of the guide surface 54, and the container 1 with a relatively large diameter contacts the area on the other end side of the guide surface 54.

[0153] When the container connector 20 is connected to the container 1, the container connector 20 is pressed against the container 1, whereby the engaging portion 43 is pressed open by the container 1. As the engaging portion 43 is pressed open, the guide surface 54 moves away from the axis C3 of the circle X. Therefore, the inclination angle α of the tangent line S at the same position of the guide surface 54 with respect to the first virtual plane P1 increases when the first portion 43A is pressed open by the container 1, compared with the state in which the first portion 43A is not pressed open.

[0154] However, by forming the guide surface 54 as a curved surface, the increase in the inclination angle α caused by the progress of the container connector 20 being connected to the container 1 can be alleviated. In addition, by forming the guide surface 54 as a curved surface having the above-mentioned characteristics, the increase in the inclination angle α of the tangent line S with respect to the first virtual plane P1 caused by the progress of the container connector 20 being connected to the container 1 can be reduced in any part of the guide surface 54. That is, the increase in the angle α can be reduced.

[0155] As the guide surface 54 is pressed open by the container 1, the position of the contact point A of the guide surface 54 with the container 1 changes. The guide surface 54 is formed as a curved surface so that the angle α does not change significantly even if the position of the contact point A changes. The angle α is approximately 45 degrees.

[0156] In addition, the other engaging portion 43 is configured to have a shape symmetrical to the above-mentioned one engaging portion 43 with respect to the first virtual plane P1.

[0157] In addition, if Figure 6 As shown, the central portion of the contact portion 53 around the axis C3 is configured to be recessed in an arc shape toward a side farther from the other engaging portion 43 than other portions.

[0158] like Figures 13 to 15 As shown, the needle member 60 includes a needle member base 61 constituting one end side of the needle member 60 and a needle portion 62 constituting the other end side of the needle member 60 .

[0159] The needle component base 61 constitutes the upper part of the base 41. The needle component base 61 is configured in a columnar shape. A flange 63 is formed at the upper end edge of the needle component base 61. In addition, an annular extension portion 64 extending in a direction away from the axis of the needle component base 61 is formed on the outer peripheral surface of the needle component base 61. Specifically, three extension portions 64 are formed. A column portion 65 for connecting the above components is formed between the flange 63 and the extension portion 64 opposite to the flange 63. A column portion 65 for connecting the above components is formed between the two opposite extension portions 64.

[0160] In addition, a rotation stopper 66 is provided at the lower end of the outer peripheral surface of the needle member base 61 and arranged in the rectangular portion 46 of the hole 44. The shape of the cross section of the rotation stopper 66 perpendicular to the axial direction of the needle member base 61 is, for example, the same shape as the rectangular portion 46 or a shape smaller than the rectangular portion 46.

[0161] In addition, if Figure 8 As shown, a contact portion 67 is formed at the lower end of the outer peripheral surface of the needle member base 61, which contacts the edge of the hole 44 from above. The contact portion 67 is, for example, a protrusion that protrudes from a part of the outer peripheral surface of the needle member base 61. Since the contact portion 67 contacts the edge of the hole 44 from above, the needle member 60 is held in the hole 44.

[0162] The needle portion 62 is configured as a portion below the base portion 41. The tip of the needle portion 62 is configured as a pointed tip.

[0163] The needle member 60 configured in this manner has, inside thereof, a liquid flow path configuration portion L3 constituting a portion of the liquid flow path L1 and a gas flow path configuration portion L4 constituting a portion of the gas flow path L2.

[0164] The liquid flow path structure portion L3 is a hole extending in the axial direction of the needle member 60 from the upper end of the needle member base 61 to the lower end of the needle member 62. The lower end of the liquid flow path structure portion L3 opens on the surface of the needle member 62. The portion of the liquid flow path structure portion L3 formed in the needle member base 61 is formed in a shape having a larger flow path area orthogonal to the axial direction of the needle member 60 than the portion formed in the needle member 62.

[0165] The gas flow path structure L4 is a hole extending in the axial direction of the needle member 60 from the upper end of the needle member base 61 to the lower end of the needle member 62. The lower end of the gas flow path structure L4 opens on the surface of the needle member 62. The portion of the gas flow path structure L4 formed at the needle member base 61 is formed in a shape having a larger flow path area orthogonal to the axial direction of the needle member 60 than the portion formed at the needle member 62.

[0166] It should be noted that the lower end opening of the liquid flow path structure portion L3 is located above the lower end opening of the gas flow path structure portion L4. This is because when the connector 10, the container 1, and the syringe 7 are tilted in order to arrange the container 1 above the connector 10, the drug solution retained on the neck side of the container 1 can be introduced into the liquid flow path structure portion L3.

[0167] like Figures 16 to 21 As shown in FIG. 1 , the seal cap 70 is formed into a cylindrical shape that accommodates the needle member base 61 and the container seal 90 inside. In addition, the seal cap 70 can release the locking of the contour body 110 described later and the stopper sleeve 230 of the device connector 100, and is configured to be lockable with the stopper sleeve 230. The seal cap 70 is configured into a cylindrical shape that fits the needle member base 61.

[0168] like Fig.16 As shown, specifically, the seal cap 70 includes a cylindrical seal cap large diameter portion 71 , a seal cap middle diameter portion 72 formed on the seal cap large diameter portion 71 , and a seal cap small diameter portion 73 formed on the seal cap middle diameter portion 72 .

[0169] A plurality of grooves extending in the circumferential direction are formed on the outer peripheral surface of the seal cap large diameter portion 71 .

[0170] The sealing cover middle diameter portion 72 is configured as a small diameter having a smaller diameter than the sealing cover large diameter portion 71. When the container connector 20 is inserted into the device connector 100 and reaches a predetermined position in the device connector 100, the sealing cover middle diameter portion 72 abuts against a stopper sleeve 230 described later of the device connector 100, and is formed so as to release the locking between the stopper sleeve 230 and the contour body 110. Specifically, the sealing cover middle diameter portion 72 is configured as a conical surface whose upper end portion 72a of the outer peripheral surface gradually decreases in diameter upward.

[0171] In addition, a locking recess 77 is formed in the sealing cap middle diameter portion 72 , and the locking recess 77 engages with the stopper sleeve 230 when the container connector 20 is inserted into the tool connector 100 and reaches a predetermined position in the tool connector 100 .

[0172] The locking recess 77 is formed in the axial direction from the lower end to the middle of the outer peripheral surface of the seal cover middle diameter portion 72. The upper surface of the locking recess 77 serves as an engaged surface with which the stopper sleeve 230 can engage.

[0173] In addition, the middle diameter portion 72 for the sealing cover is formed with an engaged portion 78 that can be engaged with the engaging member 160 described later of the device connector 100. Specifically, the engaged portion 78 is formed at a part of the upper end portion 72a formed on the conical surface of the outer peripheral surface of the middle diameter portion 72 for the sealing cover. The engaged portion 78 is a protrusion formed at a part of the middle diameter portion 72 for the sealing cover and protruding outward in the radial direction. The lower surface 79 of the engaged portion 78 is, for example, configured as a plane orthogonal to the axial direction of the sealing cover 70.

[0174] In addition, first guide protrusions 75 for guiding axial movement of the contour body 111 of the container connector 20 within the contour body 111 of the device connector 100 are formed on the outer peripheral surface of the large diameter portion 71 for the sealing cap and the outer peripheral surface of the medium diameter portion 72 for the sealing cap.

[0175] The first guide protrusion 75 is formed in a protrusion shape protruding radially outward. The first guide protrusion 75 can be formed to be received in the first guide groove 126 formed in the contour body 111. For example, a plurality of first guide protrusions 75 are formed. For example, one first guide protrusion 75 is formed.

[0176] The small-diameter seal cap portion 73 is formed into a small-diameter cylindrical shape having a smaller diameter than the upper end of the medium-diameter seal cap portion 72. The small-diameter seal cap portion 73 is formed into a cylindrical shape that is movably fitted into a head cover 180 of the tool connector 100 described later.

[0177] like Fig. 20 As shown, the edge 73b of the opening 73a at the upper end of the sealing cap small diameter portion 73 is formed into a ring extending radially inward. The opening 73a is formed into a circular shape. In addition, the sealing cap small diameter portion 73 has a length in the axial direction between the lower surface 73c of the edge 73b and the upper end of the needle component base 61 that can be configured with a part of the container seal 90.

[0178] like Figure 8 , Figures 19 to 21As shown in FIG. 1 , the inner peripheral surface 76 of the sealing cover 70 thus constructed is formed with a groove 81 in which the engaging claw 47 of the container fixing part body 40 is arranged. The groove 81 has an engaged surface 82 extending in the axial direction and the claw portion 49 of the engaging claw 47 is engaged at the end. The engaged surface 82 is configured as a plane orthogonal to the axial direction, for example. The engaging claw 47 of the container fixing part body 40 is accommodated in the groove 81, and the claw portion 49 is engaged with the engaged surface 82 in the axial direction, thereby fixing the sealing cover 70 and the container fixing part body 40.

[0179] like Figure 8 As shown, a part of the container seal 90 is accommodated in the sealing cap 70, and the other part of the container seal 90 is arranged outside the sealing cap 70 through the opening 73a at the upper end of the sealing cap 70. The container seal 90 can be configured to seal the opening 73a of the sealing cap 70. In addition, the container seal 90 can be configured to seal the opening of the needle member 60, the opening of the liquid flow path structure part L3, and the opening of the gas flow path structure part L4.

[0180] The container seal 90 is formed of a resin such as rubber or an elastomer and has flexibility. In addition, the hole formed by the liquid needle 170 and the gas needle 175 described later inserted into the device connector 100 can be sealed and formed liquid-tight and air-tight by restoring force after the liquid needle 170 and the gas needle 175 move.

[0181] like Fig. 22 and Fig.23 As shown, specifically, the container seal 90 has: a seal large diameter portion 93 arranged in the sealing cover 70, a seal small diameter portion 94 formed on the upper surface of the seal large diameter portion 93 and arranged in the opening 73a, a first interlocking portion 96 formed on the lower surface of the seal large diameter portion 93 and arranged at the opening of the liquid flow path structure portion L3, and a second interlocking portion 97 formed on the lower surface of the seal large diameter portion 93 and arranged at the opening of the gas flow path structure portion L4.

[0182] The seal large diameter portion 93 is formed to seal the inner peripheral surface 76 of the seal cap 70. Specifically, the seal large diameter portion 93 has an outer diameter larger than the inner diameter of the seal cap 70, and is formed in a cylindrical shape longer than the distance from the upper end of the needle member 60 to the edge 73b of the seal cap small diameter portion 73 in the axial direction.

[0183] The seal small diameter portion 94 is configured to seal the opening 73a. Specifically, the seal small diameter portion 94 has an outer diameter larger than the inner diameter of the opening 73a and is configured in a cylindrical shape with a portion of the axial direction protruding upward from the upper surface of the seal cap small diameter portion 73.

[0184] The portion of the seal small diameter portion 94 that protrudes outward from the upper surface of the seal cap small diameter portion 73 is a compression compensation amount (proportion) for sealing between the needle seal 200 by contacting and bursting the needle seal 200 described later. The compression compensation amount is set to an amount that can seal between the upper surface of the seal small diameter portion 94 and the needle seal 200. The upper end surface 95 of the seal small diameter portion 94 is configured as a plane orthogonal to the axial direction of the seal small diameter portion 94.

[0185] The first fitting portion 96 is formed so as to seal the opening of the liquid flow path structure portion L3. Specifically, the first fitting portion 96 is configured in a cylindrical shape having an outer diameter larger than the inner diameter of the liquid flow path structure portion L3.

[0186] The second fitting portion 97 is configured to seal the opening of the gas flow path structure portion L4. Specifically, the second fitting portion 97 is configured in a cylindrical shape having an outer diameter larger than the inner diameter of the gas flow path structure portion L4.

[0187] Next, the device connection member 100 will be described. Fig.24 and Fig. 27 As shown, the instrument connector 100 comprises: a contour body 110, an air bag 152 accommodated in the contour body 110, a liquid needle 170 constituting a part of the liquid flow path L1, a gas needle 175 constituting a part of the gas flow path L2, a cylindrical head cover 180 movably accommodated in the contour body 110, a needle seal 200 fixed to the head cover 180, a stopper sleeve 230 which can selectively fix the head cover 180 to the contour body 110 and can selectively fix the head cover 180 and the container connector 20, and a force applying component 250 which applies force to the head cover 180 in a direction extending from the contour body main body 111.

[0188] like Figure 2 and Fig. 27 As shown, the outline body 110 includes an outline body main body 111 , an air bag storage portion 150 storing an air bag 152 , and an engaging member 160 for releasably locking the outline body main body 111 to the container connector 20 .

[0189] The contour body main body 111 is configured as a bottomed cylinder. Specifically, the contour body main body 111 comprises: a top wall portion 114, a syringe fixing portion 115 formed on the top wall portion 114 to which the cylinder 8 of the syringe 7 can be fixed, a liquid needle fixing portion 116 formed on the top wall portion 114 to which the liquid needle 170 can be fixed, a cylindrical barrel portion 117 formed on the periphery of the top wall portion 114, and an inner sleeve 140 fixed inside the contour body main body 111.

[0190] like Figure 1 and Figure 2 As shown, the top wall portion 114 is formed in a circular plate shape, for example.

[0191] The syringe fixing portion 115 is formed on the upper surface of the top wall portion 114, and is formed in a cylindrical shape that protrudes upward relative to other parts of the upper surface. The syringe fixing portion 115 is formed to be fittable in the front end portion of the cylinder 8. Specifically, the syringe fixing portion 115 includes: a syringe fixing portion body 120 formed in a cylindrical shape, and a syringe fixing portion protrusion 121 formed on the periphery of the upper end of the syringe fixing portion body 120 and protruding radially outward.

[0192] For example, a plurality of syringe fixing protrusions 121 are formed. The syringe fixing protrusions 121 have a predetermined length in the circumferential direction of the syringe fixing body 120. The syringe fixing protrusions 121 are screwed into the internal thread formed at the front end of the cylinder 8 to fix the syringe 7 and the device connector 100.

[0193] The liquid needle fixing part 116 protrudes downward from the lower surface of the top wall part 114 and is formed into a cylindrical shape to fix the liquid needle 170 therein. The liquid needle fixing part 116 communicates with the inside of the syringe fixing part body 120. The liquid needle fixing part 116 is formed into a cylindrical shape, for example.

[0194] The syringe fixing part 115 and the liquid needle fixing part 116 are formed by, for example, a needle holder 122 which is a component different from other parts of the outline body 111. In other words, the syringe fixing part 115 and the liquid needle fixing part 116 are formed by attaching the needle holder 122 to the outline body 111.

[0195] like Fig.31 As shown, the needle holder 122 includes a base portion 124 , a syringe fixing portion 115 , and a liquid needle fixing portion 116 .

[0196] The base 124 is formed into a cylindrical shape having a larger diameter than the liquid needle fixing portion 116 and a smaller diameter than the syringe fixing portion 115. Fig.31 As shown, a ratchet 124a is formed on the outer peripheral surface of the base 124, and the ratchet 124a allows the needle holder 122 to rotate only in one direction around the axis of the syringe fixing part 115, and restricts rotation in the opposite direction. The rotation direction of the needle holder 122 allowed by the ratchet 124a is the direction in which the syringe 7 is rotated relative to the syringe fixing part 115 in order to remove the syringe 7 from the syringe fixing part 115.

[0197] like Fig.29 As shown, a protrusion 123 protruding downward is formed on the lower surface of the top wall 114. The protrusion 123 abuts against the ratchet 124a in the direction in which the syringe 7 rotates relative to the syringe fixing part 115 to fix the syringe 7 to the syringe fixing part 115, thereby restricting the needle holder 122 from rotating.

[0198] like Fig. 27 As shown, the barrel 117 is formed into a cylindrical shape into which the sealing cap large diameter portion 71 of the container connector 20 is movably fitted. A hole 117a is formed at the upper end of the barrel 117 to accommodate a portion of the inner sleeve 140. The hole 117a communicates with the air bag storage portion 150.

[0199] The barrel portion 117 has a first guide groove 126 formed at a portion of the lower end portion of the inner circumferential surface 117b thereof, which movably receives the first guide protrusion 75 of the sealing cover 70 of the container connector 20. The first guide groove 126 opens toward the lower end of the barrel portion 117. The first guide protrusion 75 intrudes into the first guide groove 126 through the opening.

[0200] The first guide groove 126 has at least a length that can guide the upward movement of the container connector 20 to a position where the liquid flow path L1 and the gas flow path L2 are formed by disposing the liquid needle 170 in the liquid flow path structure portion L3 and the gas needle 175 in the gas flow path structure portion L4.

[0201] The first guide groove 126 extends in the axial direction of the contour body 110. The width of the first guide groove 126 along the circumferential direction of the contour body 110 is large enough for the first guide protrusion 75 to be movably embedded. The inner surface of the first guide groove 126 abuts against the first guide protrusion 75 in the circumferential direction to prevent the container connector 20 from rotating. The first guide grooves 126 are formed in a number corresponding to the number of the first guide protrusions 75. For example, one first guide groove 126 is formed.

[0202] The cylindrical body 117 has a second guide groove 127 formed in the axial middle portion of the inner peripheral surface thereof, in a portion axially aligned with the first guide groove 126, for movably receiving a second guide protrusion 182 of the head cover 180 described later.

[0203] The second guide groove 127 extends in the axial direction of the contour body main body 111. The second guide groove 127 has a length that can at least guide the upward movement of the container connector 20 to a position where the liquid flow path L1 and the gas flow path L2 are formed.

[0204] The width of the second guide groove 127 along the circumferential direction of the contour body main body 111 is large enough to allow the second guide protrusion 182 to be movably inserted. The inner surface of the second guide groove 127 is formed to prevent the head cover 180 from rotating by abutting against the second guide protrusion 182 in the circumferential direction. For example, a plurality of second guide grooves 127 are formed. For example, two second guide grooves 127 are formed, and each is arranged at an interval of 180 degrees in the circumferential direction of the contour body main body 111.

[0205] In addition, if Fig.29 and Fig.30As shown, a locking protrusion 128 is formed at a position offset from the second guide groove 127 in the circumferential direction at an axial midway portion of the inner circumferential surface of the cylindrical portion 117. The locking protrusion 128 protrudes radially inward of the contour body 111.

[0206] The locking protrusion 128 is formed so as to restrict the upward movement of the head cover 180 fixed to the stopper cover 230 by engaging with the stopper cover 230 .

[0207] For example, a plurality of locking protrusions 128 are formed. For example, two locking protrusions 128 are formed. The two locking protrusions 128 are arranged 180 degrees apart in the circumferential direction of the cylindrical body 117, and are arranged at a position offset 45 degrees from the circumferential direction of the contour body main body 111 relative to the first guide groove 126 and the second guide groove 127.

[0208] In addition, if Fig.30 and Fig.31 As shown, a lock releasing projection 129 is formed at a position offset from the lock projection 128 in the circumferential direction at an axially midway portion of the inner circumferential surface of the cylindrical portion 117. The lock releasing projection 129 projects radially inward of the contour body 111.

[0209] The lock releasing projection 129 is formed so as to release the engagement between the stopper sleeve 230 and the lock recess 77 of the container connector 20 by abutting against the stopper sleeve 230 .

[0210] like Fig.50 As shown, the unlocking projection 129 is formed in a shape in which a midway portion protrudes most radially inward of the contour body 111 in the axial direction of the cylindrical portion 117, and the amount of radial inward protrusion gradually increases from the upper and lower ends to the midway portion.

[0211] For example, a plurality of unlocking protrusions 129 are formed. For example, two unlocking protrusions 129 are formed. The two unlocking protrusions 129 are spaced 180 degrees apart in the circumferential direction of the outline body 111 and are arranged at positions separated by 90 degrees from the locking protrusion 128 in the circumferential direction.

[0212] like Figure 1 , Figure 3 , Fig.24 and Fig.25 As shown, a hole 131 for accommodating, for example, a part of the engaging member 160 is formed at the lower end of the cylindrical body 117. The hole 131 penetrates the cylindrical body 117 in the radial direction. For example, a plurality of holes 131 are formed. For example, two holes 131 are formed. The two holes 131 are spaced 180 degrees apart in the circumferential direction of the contour body 110, for example, at a position separated by 90 degrees from the first guide groove 126 and the second guide groove 127 in the circumferential direction.

[0213] The outline body main body 111 thus configured is configured by combining a plurality of parts, for example. The outline body main body 111 is configured by fixing two outline body structural members 132, for example. Figure 2 The figure shows a state where one of the outline structural members 132 is removed. Fig.28 and Fig.29 One contour structure component 132 is shown. Fig.30 The inner surface of the other contour structure member 132 is shown.

[0214] like Figures 28 to 30 As shown, the two contour structure components 132 each have a shape that divides the contour body 111 into two with planes that are parallel to the axis of the contour body 111, the axial direction of the contour body 111, and the direction parallel to the contour body 111 and the air bag storage portion 150.

[0215] For example, one of the contour structure components 132 has a plurality of pins 134. The other contour structure component 132 has a plurality of holes 135 into which the plurality of pins 134 fit. The plurality of pins 134 fit into the plurality of holes 135, thereby integrally fixing the two contour structure components 132.

[0216] like Figure 2 As shown, the inner sleeve 140 constitutes the gas flow path structure L5 of the gas flow path L2, which is the part from the gas needle 175 to the air bag 152. Specifically, Figure 32 to Figure 34 As shown, the inner cover 140 includes an inner cover body 141 and an extension portion 142 extending from the inner cover body 141 toward the air bag storage portion 150 .

[0217] The inner sleeve body 141 is formed in a cylindrical shape. A hole 143 is formed in the inner sleeve body 141 in which the liquid needle fixing part 116 is rotatably arranged. Fig.34 As shown, a gas needle fixing portion 144 capable of fixing a gas needle 175 is formed on the lower surface of the inner sleeve body 141 at a position parallel to the hole 143, for example, in the radial direction. The gas needle fixing portion 144 is a hole for fixing the gas needle 175. The gas needle fixing portion 144 is connected to the gas flow path structure portion L5 of the gas flow path L2.

[0218] The extension portion 142 is connected to the air bag 152. The extension portion 142 is configured, for example, in a cylindrical shape that protrudes radially outward from the upper end of the outer peripheral surface of the inner sleeve body 141. Figure 2 As shown, the extension portion 142 includes a support portion 145 disposed in the hole 117 a formed in the outline body main body 111 and supported by the hole 117 a , and a fixing portion 146 disposed in the air bag storage portion 150 and fixing the air bag 152 .

[0219] The support portion 145 is configured in a cylindrical shape having substantially the same inner diameter as the hole 117a. The fixing portion 146 is configured in a cylindrical shape having a larger diameter than the support portion 145, for example. A flange 147 is formed at the front end of the fixing portion 146.

[0220] The fixing portion 146 is disposed, for example, on the upper side or the lower side of the center in the vertical direction of the air bag storage portion 150. In the present embodiment, as an example, the fixing portion 146 is disposed on the upper side of the center in the vertical direction of the air bag storage portion 150.

[0221] In addition, if Figure 2 and Fig.33 As shown, the end surface 148 of the flange 147 is configured as a flat surface that is inclined with respect to the up-down direction and the axial direction of the fixing portion 146 when the inner sleeve 140 is attached to the contour body 110 .

[0222] The inclined plane refers to a plane where the lower end 148a of the end surface 148 is located closer to the support portion 145 than the upper end 148b when the fixing portion 146 is arranged above the center in the vertical direction of the air bag storage portion 150. In other words, the upper end 148b is located closer to the center line of the air bag storage portion 150 than the lower end 148a. Here, the center line is a line passing through the center of the air bag storage portion 150 and parallel to the vertical direction.

[0223] The inclined plane refers to a plane where the upper end 148b of the end surface 148 is located closer to the support portion 145 than the lower end 148a when the fixing portion 146 is arranged below the center in the vertical direction of the air bag storage portion 150. In other words, the lower end 148a is located closer to the center line of the air bag storage 150 than the upper end 148b.

[0224] The thickness of the flange 147 gradually increases from the upper end 148b to the center in the vertical direction, and gradually decreases from the center to the lower end 148a in the vertical direction. The inner sleeve 140 having the above shape is configured at the center position of the flange 147 as a dividing line between the upper mold and the lower mold, thereby being manufactured by injection molding.

[0225] It should be noted that when the fixing portion 146 is located below the center of the air bag storage portion 150 in the vertical direction, the end surface 148 may be configured as a plane whose lower end 148a is located closer to the center line of the air bag storage portion 150 than the upper end 148b.

[0226] like Figure 2As shown, the air bag storage portion 150 is arranged at intervals relative to the contour body main body 111 in a direction orthogonal to the axial direction of the contour body main body 111. In this embodiment, the air bag storage portion 150 is arranged in parallel with the contour body main body 111 in a direction in which the two first guide grooves 126 are arranged in parallel. The air bag storage portion 150 is formed in a box shape having a space portion inside which can store the air bag 152.

[0227] In addition, the air bag storage portion 150 is formed in a cylindrical shape, for example, and its axis is arranged parallel to the axis of the contour body main body 111. In addition, the upper end wall portion of the air bag storage portion 150 is configured to be a dome-shaped protruding upward, and the upper surface 150a of the internal space of the air bag storage portion 150 is also configured to be a dome-shaped protruding upward. The upper surface 150a is configured to be a shape that protrudes upward with the upper end located on the axis of the air bag storage portion 150, such as a bowl shape. The lower end wall portion of the air bag storage portion 150 is configured to be a dome-shaped protruding downward, and the bottom surface 150b of the internal space of the air bag storage portion 150 is also configured to be a dome-shaped protruding downward. The bottom surface 150b is configured to be a shape that protrudes downward with the lower end located on the axis of the air bag storage portion 150, such as a bowl shape.

[0228] The air bag storage part 150 is fixed to the contour body main body 111 by the connecting part 151. In addition, the air bag storage part 150 uses a transparent or translucent resin material, or an opening or a transparent window can be provided on a part of the wall surface of the air bag storage part 150 to make the shape of the air bag 152 visible.

[0229] The air bag storage unit 150 and the connecting unit 151 thus constructed can be constructed by combining a plurality of components. The air bag storage unit 150 is constructed by fixing two structural components. Figure 3 and Figure 6 As shown, the structural member constituting one side of the air bag storage section 150 is integrally formed with a part of the connecting section 151 on one side of the contour body structural member 132. The structural member constituting the other side of the air bag storage section 150 is integrally formed with another part of the connecting section 151 on the other side of the contour body structural member 132. In other words, the contour body main body 111, the air bag storage section 150, and the connecting section 151 are formed by fixing the two contour body structural members 132.

[0230] like Figure 1 , Figure 3 ,as well as Fig. 27As shown, the engaging member 160 is, for example, partially disposed in the hole 131. The engaging member 160 is engaged with the engaged portion 78 of the sealing cap 70 when the container connector 20 is inserted into the contour body main body 111 and the liquid flow path L1 and the gas flow path L2 are formed. Moreover, the engaging member 160 is configured so that the engagement with the engaged portion 78 can be released by operation. In addition, the engaging member 160 is configured so that the engagement with the engaged portion 78 can be locked. The engaging member 160 and the engaged portion 78 constitute a locking mechanism 160a for locking the mutual engagement. For example, a plurality of engaging members 160 are provided, and two are provided as a specific example. The two engaging members 160 are arranged around the axis of the contour body main body 111 at intervals of 180 degrees.

[0231] The engaging member 160 is a member that is long in the axial direction of the contour body main body 111. The engaging member 160 includes an engaging portion 161 that engages with the engaged portion 78 of the seal cover 70, an operating portion 165 that is operated by an operator when the engaging portion 161 and the engaged portion 78 are released from engagement, a deforming portion 166 that deforms to move the engaging portion 161 in a direction to release engagement with the engaged portion 78, a posture adjusting portion 167 that adjusts the posture of the engaging portion 161, a fulcrum portion 168 that changes the operating force input to the operating portion 165 into a force for deforming the deforming portion 166, and a fixing portion 169 that fixes the engaging member 160 to the contour body main body 111.

[0232] The engaging portion 161 engages with the engaged portion 78 of the seal cap 70 when the tool connector 100 is inserted into the container connector 20 and the liquid flow path L1 and the gas flow path L2 are formed.

[0233] Specifically, the engaging portion 161 is configured as a protrusion that protrudes inward in the radial direction of the contour body main body 111. The upper surface 162 of the engaging portion 161 abuts against the lower surface of the engaged portion 78 in the vertical direction, whereby the engaged portion 78 receives a load when the container connector 20 is pulled in the axial direction of the cylindrical portion 117, in other words, in the direction in which the container connector 20 is pulled out from the device connector 100, that is, downward. The upper surface 162 is configured, for example, as a plane orthogonal to the vertical direction.

[0234] The lower surface 164 of the engaging portion 161 contacts the sealing cap 70 when the container connector 20 is inserted into the appliance connector 100. The lower surface 164 is formed as a guide surface for guiding the movement of the sealing cap 70. Specifically, the lower surface 164 is configured as a curved surface that gradually extends upward and toward the inside of the contour body 111.

[0235] The operating portion 165 is formed at the upper portion of the engaging member 160. The operating portion 165 is configured so that the operator can press the operating portion 165 inwardly in the radial direction of the cylindrical portion 117 of the contour body main body 111. When the container connector 20 is inserted into the device connector 100 and the liquid flow path L1 and the gas flow path L2 are formed, the operating portion 165 has a gap S2 in the radial direction of the cylindrical portion 117 with the container connector 20 disposed in the cylindrical portion 117.

[0236] The gap S2 is a movement compensation amount of the operating portion 165 when the operating portion 165 is pressed toward the inner side of the outline body main body 111. Specifically, the operating portion 165 is configured to be inclined in a direction away from the outline body main body 111 in the radial direction.

[0237] The deformation part 166 is provided between the engaging part 161 and the fixing part 169. The deformation part 166 is provided, for example, continuously with the engaging part 161 in the axial direction of the cylindrical body 117. When a force in a direction in which the engaging part 161 extends outward from the contour body main body 111 acts on the engaging part 161, the deformation part 166 bends so that the engaging part 161 moves outward from the contour body main body 111. The deformation part 166 can be configured so that the engaging part 161 is bent in the up-down direction so as to release the engagement with the engaged part 78 to a position not facing the engaged part 78.

[0238] Specifically, the deformation portion 166 is configured to extend linearly in the up-down direction. The deformation portion 166 is thinner than, for example, the fixing portion 169 and the engaging portion 161 .

[0239] The posture adjustment portion 167 is provided between the engaging portion 161 and the operating portion 165. The posture adjustment portion 167 is provided, for example, continuously with the engaging portion 161 in the axial direction of the cylindrical portion 117. In other words, the posture adjustment portion 167 is formed between the engaging portion 161 and a fulcrum portion 168 described later. When a force in a direction in which the engaging portion 161 extends outward from the contour body main body 111 acts on the engaging portion 161 and the engaging portion 161 is bent by the deformation portion 166 and moves from the contour body main body 111, the posture adjustment portion 167 is configured so that the engaging portion 161 can be kept in a plane orthogonal to the upper surface 162 and the vertical direction by bending. The posture adjustment portion 167 is, for example, thinner than the engaging portion 161 and the operating portion 165.

[0240] The fulcrum portion 168 is provided between the operating portion 165 and the posture adjustment portion 167. In other words, the fulcrum portion 168 is formed continuously with the operating portion 165 in the axial direction of the cylindrical portion 117. The fulcrum portion 168 contacts a portion of the device connector 100 when the operating portion 165 is pressed toward the inner side of the contour body main body 111, thereby generating a rotational moment in a direction in which the engaging portion 161 extends toward the outer side of the contour body main body 111 relative to the portion closer to the engaging portion 161 than the fulcrum portion 168 by lever action.

[0241] The fulcrum portion 168 is in contact with, for example, the stopper sleeve 230. In addition, the fulcrum portion 168 is in contact with the stopper sleeve 230 even when, for example, the operation portion 165 is not pressed toward the inner side of the outline body main body 111.

[0242] The fixing portion 169 is provided at the lower end of the engagement member 160 to fix the engagement member 160 to the outline body main body 111. In other words, the fixing portions 169 of the two engagement members 160 are connected via the outline body main body 111 in the circumferential direction of the outline body main body 111.

[0243] The deformable portion 166 and the posture adjusting portion 167 of the engaging member 160 configured in this manner have such strength that they are not bent or deformed by a force in a direction in which the container connector 20 is pulled out from the appliance connector 100 as is assumed during normal use.

[0244] like Figure 2 As shown, the air bag 152 is stored in the air bag storage portion 150. The air bag 152 is formed of a thin film resin material that can be easily deformed as air enters and exits the inside. The pressure in the container 1 can be adjusted by the deformation of the air bag 152. The air bag 152 has a volume greater than the volume of the cylinder 8 of the syringe 7.

[0245] The air bag 152 is fixed to the end face 148 of the flange 147 of the extension portion 142 of the inner sleeve 140. The air bag 152 is fixed to the end face 148 by, for example, bonding. The air bag 152 is connected to the inside of the contour body 111 via the extension portion 142. It should be noted that the air bag 152 is stored in the air bag storage portion 150 in a folded state when not in use. Figure 2 The air bag 152 is shown in a folded state.

[0246] Since the end surface 148 of the gas needle fixing portion 144 of the inner sleeve 140 is formed as a plane inclined in the vertical direction and the upper end 148b is located closer to the center side of the air bag storage portion 150 than the lower end 148a, the upper end of the folded air bag 152 is located closer to the center side of the air bag storage portion 150 than the lower end of the folded air bag 152. Therefore, a sufficient space is provided between the upper end of the folded air bag 152 and the upper surface 150a of the internal space of the air bag storage portion 150.

[0247] Therefore, the upper end of the folded air bag 152 does not abut against the upper surface of the internal space of the air bag storage portion 150. In other words, the end surface 148 of the inner sleeve 140 is configured as a surface that can be arranged at a position where the upper end of the folded air bag 152 does not abut against the upper surface of the internal space of the air bag storage portion 150, that is, at a position closer to the center side than the outer peripheral edge of the upper surface.

[0248] like Figure 2 As shown, the liquid needle 170 is formed in a cylindrical shape. The upper end portion of the liquid needle 170 is accommodated in the liquid needle fixing portion 116 and fixed to the liquid needle fixing portion 116. The liquid needle 170 constitutes a part of the liquid flow path L1.

[0249] In this embodiment, the liquid needle 170 is formed in a cylindrical shape with a blocked lower end 171. The lower end 171 is formed in a pointed shape. A hole 172 is formed at the lower end of the outer peripheral surface 173 of the liquid needle 170 to communicate the inside and the outside of the liquid needle 170.

[0250] The hole 172 is an example of an opening on the front end side of the liquid needle 170. The hole 172 may be arranged, for example, on the peripheral surface of the lower end of the outer peripheral surface 173. Alternatively, the hole 172 may be formed at the lower end of the liquid needle 170, that is, at the portion where the tip is formed. In short, the hole 172 only needs to be arranged on the front end side of the liquid needle 170.

[0251] The gas needle 175 is configured to flow gas. The gas needle 175 has the same structure as the liquid needle 170, for example. The structure of the gas needle 175 having the same function as the liquid needle 170 is marked with the same reference numerals as the liquid needle 170, and the description thereof is omitted. The end of the gas needle 175 is fixed to the gas needle fixing portion 144 of the inner sleeve 140.

[0252] The position of the hole 172 of the gas needle 175 in the vertical direction is arranged at the same position as the position of the hole 172 of the liquid needle 170 in the vertical direction. In addition, in the present embodiment, the position of the lower end of the gas needle 175 in the vertical direction is arranged at the same position as the position of the lower end of the liquid needle 170 in the vertical direction. Therefore, as described later, as the head cover 180 moves in the outline body 110, the gas needle 175 penetrates the needle seal 200 at the same time as the liquid needle 170. In addition, the hole 172 of the gas needle 175 penetrates into the container seal 90 at the same time as the liquid needle 170.

[0253] The liquid needle 170 and the gas needle 175 have a length such that the lower ends of the liquid needle 170 and the gas needle 175 are arranged in the needle seal 200 when the head cover 180 is arranged at the lower end of the moving range in the contour body main body 111. That is, the holes 172 of the liquid needle 170 and the gas needle 175 are arranged in the needle seal 200 so that the holes 172 are sealed by the needle seal 200.

[0254] like Figure 1 , Figure 2 ,and Figure 3 As shown, the head cover 180 is formed into a cylindrical shape that is movable within the contour body 111. Figures 35 to 40 As shown, the head cover 180 includes a head cover body 181 and a second guide protrusion 182. The head cover body 181 is formed in a cylindrical shape that is movably fitted on the inner peripheral surface of the cylindrical body 117, for example.

[0255] The head cover body 181 is formed into a cylindrical shape that is movably fitted on the inner peripheral surface of the inner cover 140. A first arm receiving recess 185 that can receive a part of a first arm 231 of the stopper cover 230 described later and a second arm receiving recess 186 that can receive a part of a second arm 232 of the stopper cover 230 described later are formed at the lower end of the outer peripheral surface 183 of the head cover body 181.

[0256] The first wrist receiving recess 185 is formed in a shape in which a portion of the outer peripheral surface 183 is recessed radially inward. The first wrist receiving recess 185 is formed in a shape in which the depth in the radial direction gradually increases from the lower end to the upper end. For example, a plurality of first wrist receiving recesses 185 are formed. In the present embodiment, two first wrist receiving recesses 185 are formed. The two first wrist receiving recesses 185 are arranged 180 degrees apart in the circumferential direction of the headgear body 181.

[0257] The second wrist receiving recess 186 is formed in a shape in which a part of the outer peripheral surface 183 is recessed radially inward. The second wrist receiving recess 186 is formed in a shape in which the depth in the radial direction gradually increases from the lower end to the upper end. For example, a plurality of second wrist receiving recesses 186 are formed. In the present embodiment, two second wrist receiving recesses 186 are formed. The two second wrist receiving recesses 186 are respectively arranged at positions separated by 90 degrees in the circumferential direction of the headgear body 181 relative to the first wrist receiving recess 185.

[0258] A fixing protrusion receiving recess 187 for receiving a fixing protrusion 236 described later of the stopper sleeve 230 is formed at the lower end of the outer peripheral surface 183. The fixing protrusion receiving recess 187 is formed in a shape in which a part of the outer peripheral surface 183 is recessed radially inward.

[0259] The fixing protrusion accommodating recess 187 includes an entrance portion 188 which opens toward the lower end of the head cover body 181 and through which the fixing protrusion 236 passes when the stopper sleeve 230 is fixed to the head cover 180, and a holding portion 189 which extends in the circumferential direction of the head cover body 181 and holds the fixing protrusion 236 which enters through the entrance portion 188. The holding portion 189 is communicated with the entrance portion 188 and is formed above the entrance portion 188. The holding portion 189 is formed in a shape which is longer than the entrance portion in the circumferential direction of the head cover body 181.

[0260] The fixing protrusion receiving recesses 187 formed in this way are formed in a plurality, for example. In the present embodiment, four fixing protrusion receiving recesses 187 are formed. The four fixing protrusion receiving recesses 187 are arranged at equal intervals in the circumferential direction of the headgear body 181, and are respectively connected to the first arm receiving recess 185 or the second arm receiving recess 186.

[0261] The second guide protrusion 182 is formed in the axial middle portion of the outer peripheral surface 183. The second guide protrusion 182 is received in the second guide groove 127 of the cylindrical portion 117. In addition, the second guide protrusion 182 is formed in the second guide groove 127 so as to be movable.

[0262] For example, a plurality of second guide protrusions 182 are formed. In the present embodiment, two second guide protrusions 182 are formed. The two second guide protrusions 182 are each arranged at positions separated by 45 degrees in the circumferential direction of the head cover 180 relative to the first arm storage recess 185. The second guide protrusions 182 are formed, for example, in a rectangular cuboid shape. In addition, the height positions of the two second guide protrusions 182 from the lower end of the head cover body 181 are different. Specifically, one second guide protrusion 182 is arranged on the upper end side of the head cover body 181, and the other second guide protrusion 182 is arranged on the lower end side of the head cover body.

[0263] like Figures 38 to 40 As shown, a partition 191 is formed on the inner peripheral surface 190 of the head cover body 181. The partition 191 divides the internal space of the head cover body 181 into two in the vertical direction. The partition 191 is formed in the middle of the axial direction of the inner peripheral surface 190. The partition 191 is configured as a wall protruding inward from the inner peripheral surface 190. A hole 192 is formed in the partition 191 for arranging a part of the needle seal 200. The hole 192 is configured in an elliptical shape, for example.

[0264] A guide 194 is provided on an upper surface 193 of the partition 191 to guide the movement of the liquid needle 170 and the gas needle 175 relative to the needle seal 200 . The guide 194 includes a guide body 195 and a support 196 that supports the guide body 195 on the upper surface 193 .

[0265] The guide body 195 is configured in a rectangular parallelepiped shape, for example, and has a hole 197 for arranging a part of the liquid needle 170 fixed to the liquid needle fixing portion 116 and a hole 198 for arranging a part of the gas needle 175 fixed to the gas needle fixing portion 144. The holes 197 and 198 penetrate the guide body 195.

[0266] The hole 197 is formed so that the liquid needle 170 can move relative to the head cover 180. Specifically, the inner diameter of the hole 197 is set larger than the outer diameter of the liquid needle 170 by a diameter that allows the liquid needle 170 to move. The upper end of the hole 197 is formed to expand in diameter toward the upper end.

[0267] The hole 198 is formed so that the gas needle 175 can move relative to the headgear 180. Specifically, the inner diameter of the hole 198 is set larger than the outer diameter of the gas needle 175 by a diameter that allows the gas needle 175 to move. The upper end of the hole 198 is formed to expand in diameter toward the upper end.

[0268] like Fig.38 As shown, the support portion 196 is formed on each side across the hole 192. The support portion 196 is configured as a column extending in the axial direction. The support portion 196 is fixed to the guide body 195. The support portion 196 fixes the guide body 195 at a position where there is a gap between the support portion 196 and the upper surface 193 and the holes 197 and 198 are axially opposite to the hole 192 of the partition portion 191 in the axial direction.

[0269] like Fig. 27 As shown, the needle seal 200 is fixed to the hole 192. The needle seal 200 is formed of a resin such as rubber or elastomer, and seals the hole formed by the liquid needle 170 and the gas needle 175 liquid-tightly and air-tightly by restoring force after the liquid needle 170 and the gas needle 175 move.

[0270] Specifically, needle seal 200 includes first portion 201 disposed on one side of hole 192 on the guide body 195 side across partition 191 , second portion 202 disposed in hole 192 , and third portion 203 disposed on the other side across partition 191 .

[0271] The first portion 201 is configured in a shape of, for example, an elliptical column that contacts the lower surface of the guide body 195 and the two support portions 196. A recess, for example, is formed on the upper surface of the first portion 201 to be a target for inserting the liquid needle 170 and the gas needle 175 during the assembly operation of the device connector 100. The first portion 201 is configured in a shape in which a cross section orthogonal to the axial direction is larger than a cross section orthogonal to the axial direction of the second portion 202.

[0272] The second portion 202 is configured in the shape of an elliptical column that fits into the hole 192 .

[0273] The third portion 203 is, for example, cylindrical. The third portion 203 is configured such that a cross section perpendicular to the axial direction is larger than a cross section perpendicular to the axial direction of the second portion 202. The lower end surface 204 of the third portion 203 is configured to seal the upper end surface 95 of the container seal 90 by contacting the upper end surface 95.

[0274] like Figure 3 As shown, the stopper sleeve 230 is fixed to the outer circumferential surface of the head cover 180. The stopper sleeve 230 selectively limits the movement of the head cover 180 relative to the contour body 110, and can selectively fix the head cover 180 to the sealing cover 70.

[0275] like Figure 41 to Figure 43 As shown, specifically, the stop sleeve 230 has: a first arm portion 231 that can be engaged with the locking protrusion 128 of the cylindrical portion 117, a second arm portion 232 that can be engaged with the locking recess 77 of the sealing cover 70, and a connecting portion 233 connecting the first arm portion 231 and the second arm portion 232.

[0276] like Fig.48 and Fig.49 As shown, the first arm portion 231 is formed to be engageable with the locking protrusion 128 when the head cover 180 is located at the lower end of the outline body 110. The first arm portion 231 is engaged with the locking protrusion 128 to prevent the head cover 180 from moving upward in the outline body 110.

[0277] like Fig.41 , Fig.48 ,as well as Fig.49As shown, specifically, the first arm portion 231 is formed into a plate shape that is long in the axial direction of the head cover 180 when the outer peripheral surface of the head cover 180 is fixed. A fixing protrusion 236 is formed at the center of a surface 235 of the first arm portion 231 that faces the head cover 180. The upper end surface of the first arm portion 231 is formed so as to be contactable with the locking protrusion 128 from the bottom to the top. The upper end surface is formed, for example, as a flat surface.

[0278] A first arm protrusion 237 is formed at the lower end of the surface 235 of the first arm 231. The lower end surface 238 of the first arm protrusion 237 is formed to be in contact with the upper end 72a formed on the conical surface of the outer peripheral surface of the sealing cover middle diameter portion 72 of the sealing cover 70. The lower end surface 238 is formed as an inclined surface inclined with respect to the axis of the head cover 180 in a state where the stopper sleeve 230 is fixed to the head cover 180.

[0279] In addition, the first wrist protrusion 237 is formed by abutting the upper end portion 72a formed on the conical surface of the outer peripheral surface of the middle diameter portion 72 for the sealing cover through the lower end surface 238, so that the first wrist 231 is rotated to move its upper end surface toward the head cover 180, thereby releasing the engagement between the first wrist 231 and the locking protrusion 128. For example, a plurality of first wrist protrusions 237 are formed. In the present embodiment, two first wrist protrusions 237 are formed. In addition, for example, a plurality of first wrists 231 are formed. In the present embodiment, two first wrists 231 are formed.

[0280] like Fig.41 , Fig.50 and Fig.51 As shown, the second arm portion 232 is engaged with the sealing cap 70, and the sealing cap small diameter portion 73 is embedded in the head cover 180, so that the upper end surface 95 of the container seal 90 and the lower end surface 204 of the third part 203 of the needle seal 200 can be maintained in close contact.

[0281] like Fig.41 Specifically, the second arm portion 232 is formed in a plate shape that is long in the axial direction of the head cover 180 when the outer peripheral surface of the head cover 180 is fixed. A second arm portion protrusion 240 that can engage with the locking recess 77 of the seal cover 70 is formed at the lower end of the surface 239 of the second arm portion 232 on the head cover 180 side.

[0282] The upper surface 241 of the second arm protrusion 240 is formed to be engageable with the locking recess 77 of the seal cover 70. The lower end surface 242 of the second arm protrusion 240 is formed as an inclined surface inclined relative to the axis of the head cover 180 when the stopper sleeve 230 is fixed to the head cover 180.

[0283] A fixing protrusion 236 is formed in the center of the surface 239. A surface 243 of the second arm portion 232 on the opposite side to the head cover 180 is formed so as to be contactable with the lock releasing protrusion 129 of the cylindrical portion 117.

[0284] Specifically, the second wrist portion 232 is formed into a substantially trapezoidal cross-section in which the central portion of the surface 243 in the circumferential direction protrudes outward. The central portion 243a of the surface 243 in the circumferential direction is formed to be able to abut against the lock release protrusion 129. The central portion 243a abuts against the lock release protrusion 129, and the second wrist portion 232 is rotated to separate the second wrist protrusion 240 from the head cover 180, thereby moving the second wrist protrusion 240 to the outside of the locking recess 77, and the engagement between the second wrist protrusion 240 and the locking recess 77 can be released. In addition, the second wrist portion 232 is formed in plurality, for example. In the present embodiment, two second wrist portions 232 are formed.

[0285] like Fig.48 As shown, the second wrist portion 232 formed in this way is in a state where the head cover 180 is arranged below the contour body main body 111 and the first wrist portion 231 is engaged with the locking protrusion 128, as shown in FIG. Fig.50 As shown, the axial midway portion of the cylindrical portion 117 of the lock release protrusion 129 (the portion that protrudes most radially inwardly of the cylindrical portion 117) abuts against the upper portion of the central portion 243a of the surface 243, thereby causing the second wrist protrusion 240 to rotate to a position that releases the engagement with the locking recess 77 of the sealing cover 70.

[0286] Furthermore, as the stopper sleeve 230 moves upward, the second arm portion 232 moves upward relative to the lock releasing protrusion 129 , whereby the midway portion of the lock releasing protrusion 129 , which is the most protruding portion, abuts against the lower end portion of the central portion 243 a of the surface 243 of the second arm portion 232 .

[0287] The second arm portion 232 is formed such that the second arm portion protrusion 240 can rotate to a position where it engages with the locking recess 77 of the seal cover 70 due to the lock releasing protrusion 129 abutting against the restoring force of the connecting portion 233 at the lower end thereof.

[0288] The connecting portion 233 connects the first wrist portion 231 and the second wrist portion 232. Figure 1 and Figure 3As shown, the connecting portion 233 abuts against the fulcrum portion 168 of the engaging member 160. The connecting portion 233 is flexible and is formed so that the first arm portion 231 can be rotated and the second arm portion 232 can be rotated by twisting. The connecting portion 233 arranges the first arm portion 231 at a position where it can be engaged with the locking protrusion 128 when no external force is applied to the first arm portion 231. The connecting portion 233 arranges the second arm portion 232 at a position where it can be engaged with the locking recess 77 of the sealing cover 70 when no external force is applied to the second arm portion 232.

[0289] The stopper sleeve 230 configured in this manner is formed into a ring shape in which the first arm portions 231 and the second arm portions 232 are alternately arranged in the circumferential direction. The first arm portions 231 and the second arm portions 232 are arranged at intervals in the circumferential direction.

[0290] The stopper sleeve 230 thus constructed is rotated by a predetermined angle in the circumferential direction after the fixing protrusion 236 is inserted from the entrance portion 188 of the fixing protrusion receiving recess 187 of the head cover body 181 in the axial direction of the head cover body 181 and enters the holding portion 189. By this rotation, the fixing protrusion 236 is arranged at a position not parallel to the entrance portion 188, so it will not be pulled out from the entrance portion 188. Therefore, the stopper sleeve 230 is fixed to the head cover 180.

[0291] As described above, when the fixing protrusion 236 is housed in the holding portion 189 , the first arm portion 231 faces the first arm portion housing recess 185 , and the second arm portion 232 faces the second arm portion housing recess 186 .

[0292] Since the first wrist 231 is opposed to the first wrist receiving recess 185, a part of the upper portion of the first wrist 231 is received in the first wrist receiving recess 185 when the first wrist 231 rotates. That is, the first wrist receiving recess 185 becomes a part of the displacement compensation amount when the first wrist 231 rotates, so the first wrist 231 can rotate to a position where the engagement between the upper end and the locking protrusion 128 is released. Since the second wrist 232 is opposed to the second wrist receiving recess 186, a part of the upper portion of the second wrist 232 is received in the second wrist receiving recess 186 when the second wrist 232 rotates. That is, the second wrist receiving recess 186 becomes a part of the displacement compensation amount when the second wrist 232 rotates, so the second wrist 232 can rotate to a position where the engagement between the second wrist protrusion 240 and the locking recess 77 is released.

[0293] like Figure 2As shown, the force applying member 250 is accommodated in the contour body main body 111, and is configured to apply force to the head cover 180 downward. Specifically, the force applying member 250 is accommodated in the head cover 180 and is closer to the top than the partition 191. The force applying member 250 is, for example, a coil spring. One end of the force applying member 250 abuts against the inner sleeve 140. The other end of the force applying member 250 abuts against the partition 191. The force applying member 250 has a structure in a state in which the head cover 180 is in a compressed state when it is located at the lowest end of the moving range of the contour body main body 111.

[0294] In addition, a force-applying portion 118 is formed on the cylindrical portion 117 of the contour body main body 111. The force-applying portion 118 is configured to press the second arm portion 232 of the stopper sleeve 230 engaged with the locking recess 77 of the seal cover 70 in the engagement direction with the locking recess 77. That is, the force-applying portion 118 applies force to the second arm portion 232, so that the engagement between the second arm portion 232 and the locking recess 77 can be firmly configured.

[0295] Specifically, the urging portion 118 is provided in the cylindrical portion 117 at the edge of a hole 117 a formed at a position facing the second arm portion 232 of the stopper sleeve 230 disposed at the lower end.

[0296] Next, the operation of connecting the container connector 20 to the container 1 will be described.

[0297] Next, use Fig.11 An example of the operation of connecting the container connector 20 to the container 1 is described below. Fig.12 In FIG. 1 , the container connector 20 is shown to be cut along the second virtual plane P2. Fig.11 In the embodiment, the container connector 20 omits the base 41 , the needle component 60 , and the sealing cap 70 .

[0298] First, if Fig.11 As shown, the operator places the container 1 on the workbench 9. When placing the container 1 on the workbench 9, the operator brings the tip of the needle portion 62 of the needle member 60 into contact with the center of the upper surface of the plug 6 of the container 1. When bringing the tip of the needle portion 62 into contact with the center of the upper surface of the plug 6, the operator moves the container connector 20 toward the container 1, thereby pressing the needle portion 62 into the container 1.

[0299] When the needle 62 of the container connector 20 is pushed into the container 1 by a predetermined amount, the guide surfaces 54 of the two engaging portions 43 are in contact with the outer peripheral portion of the flange 5 of the container 1. Since the guide surfaces 54 are configured in a V-shape, the guide surfaces 54 abut against the flange 5 at two locations. Therefore, the container connector 20 abuts against the container 1 at four points.

[0300] The operator further pushes the container connector 20 downward while bringing the guide surfaces 54 of the two engaging portions 43 into contact with the flange 5 of the container 1. When the container connector 20 is further pushed downward, the two engaging portions 43 receive a force in a direction away from the axis C3 of the circle X from the tangent point A with the container 1. This force is a component of the reaction received from the flange 5 of the container 1 by pushing the container connector 20 downward, which acts in a direction orthogonal to the axis C3 of the circle X.

[0301] Since the two engaging parts 43 are each subjected to a force in a direction away from the axis C3 of the circle X, the two arm parts 42 are bent. Since the arm part 42 is bent, the engaging part 43 moves mainly in a direction away from the axis C3 with the folded part 51 of the arm part 42 as the center. Due to this movement, the two engaging parts 43 are expanded, and thus, the posture of the engaging part 43 relative to the axis C3 of the circle X changes.

[0302] It should be noted that even if the posture of the engaging portion 43 changes, the increase in the inclination angle α of the tangent line S of the four guide surfaces 54 at the tangent point A relative to the first virtual plane P1 from the time when the operation of pressing the container connector 20 into the container 1 is started is small. Therefore, the operator can press the container connector 20 with a substantially constant force.

[0303] When the container connector 20 is pushed into the container 1 to a predetermined position, the two engagement portions 43 are each pushed open to a position where the contact portions 53 of the two engagement portions 43 contact the outer peripheral edge of the flange 5 of the container 1 .

[0304] When the container connector 20 is further pressed downward, the contact portions 53 of the two engaging portions 43 contact the outer peripheral surface of the flange 5 of the container 1. When the container connector 20 is further pressed downward, the contact portions 53 of the two engaging portions 43 move the outer peripheral surface of the flange 5 of the container 1 downward.

[0305] As the container connector 20 is further pressed downward, when the contact portions 53 of the two engaging portions 43 move to a position opposite to the neck 4 of the container 1, the two engaging portions 43 each move toward the neck 4 side by the restoring force of the arm portion 42, and the contact portions 53 contact the neck 4. Since the cross-section of the engaging portion 43 perpendicular to the axis C3 is V-shaped, the contact portions 53 contact the neck 4 at two points. That is, the neck 4 contacts the neck 4 through the contact portions 53 supported at four points, and the engaging portion 43 is engaged with the neck 4.

[0306] Next, use Figures 48 to 54 , the operation of connecting the device connector 100 to the container connector 20 and forming the liquid flow path L1 and the gas flow path L2 is described. Figures 48 to 54In the figure, the structure other than the first arm portion 231 and the second arm portion 232 is omitted or simplified.

[0307] like Fig.48 As shown, when the tool connector 100 is not connected to the container connector 20, the head cover 180 is located at the lower end of the contour body 110. In addition, the first arm portion 231 of the stopper sleeve 230 is engaged with the locking protrusion 128. Fig.50 As shown, the second arm 232 of the stopper sleeve 230 abuts against the lock release protrusion 129 of the barrel 117, and the second arm protrusion 240 rotates to a position where the engagement with the lock recess 77 of the seal cover 70 is released. A portion of the second arm 232 is accommodated in the second arm accommodation recess 186 of the head cover 180.

[0308] The portion of liquid needle 170 and the portion of gas needle 175 where hole 172 is formed are disposed in needle seal 200. That is, hole 172 of liquid needle 170 and hole 172 of gas needle 175 are sealed by needle seal 200 in an air-tight and liquid-tight manner.

[0309] Then, if Fig.49 and Fig.50 As shown in FIG. 1 , the small diameter portion 73 of the seal cap 70 is inserted into the head cover 180. While the upper end face 95 of the container seal 90 is in close contact with the lower end face 204 of the needle seal 200, the lower end face 238 of the first arm portion protrusion 237 of the first arm portion 231 of the stopper sleeve 230 abuts against the upper end portion 72a formed of the conical surface on the outer peripheral surface of the seal cap medium diameter portion 72. The upper end face 95 of the container seal 90 formed into a curved surface is deformed by being pressed by the lower end face 204 of the needle seal 200 and is in close contact with the lower end face 204.

[0310] like Fig.49 As shown, when the device connector 100 is further lowered from this state, the first wrist protrusion 237 is guided by the upper end portion 72a and moves radially outward. As the first wrist protrusion 237 moves radially outward, the first wrist 231 rotates. In a state where the upper end surface 95 of the container seal 90 is in close contact with the lower end surface 204 of the needle seal 200, the first wrist 231 is guided by the upper end portion 72a formed in the conical surface and rotates to a position where the engagement with the locking protrusion 128 is released. At this time, a part of the first wrist 231 is accommodated in the first wrist accommodation recess 185 of the head cover 180. Since the engagement between the first wrist 231 and the locking protrusion 128 is released, the head cover 180 is in a state where it can move upward in the contour body main body 111.

[0311] At this time, if Fig.50As shown, when the tool connector 100 is lowered until the upper end surface 95 of the container seal 90 is in close contact with the lower end surface 204 of the needle seal 200, the second arm protrusion 240 is opposed to the locking recess 77.

[0312] When the tool connector 100 is further lowered, the container connector 20 and the head cover 180 move upward in the outline body 111. When the head cover 180 moves upward in the outline body 111, the liquid needle 170 and the gas needle 175 move downward relative to the needle seal 200.

[0313] When the device connector 100 is further lowered, the container connector 20 and the head cover 180 are further moved upward in the contour body 111, whereby the liquid needle 170 and the gas needle 175 penetrate the needle seal 200 and pierce the container seal 90. It should be noted that the liquid needle 170 and the container seal 90 are sealed in a liquid-tight and air-tight manner by the container seal 90 and the liquid needle 170 being in close contact. Similarly, the gas needle 175 and the container seal 90 are sealed in a close contact by the container seal 90 and the gas needle 175.

[0314] In the state where the liquid needle 170 and the gas needle 175 have penetrated the needle seal 200, the second arm 232 moves upward relative to the lock release protrusion 129. In the process of the second arm 232 moving upward relative to the lock release protrusion 129, the abutment position of the middle part of the lock release protrusion 129 that protrudes most radially inward of the contour body main body 111 in the central part 243a of the surface 243 of the second arm 232 moves downward. As the abutment position moves downward, the force that applies the second arm protrusion 240 to the radially outer side of the contour body main body 111 is reduced.

[0315] like Fig.51 As shown in FIG. 1 , in a state where the liquid needle 170 and the gas needle 175 have passed through the needle seal 200, the second wrist portion 232 is released from the radially inward force due to the abutment with the lock release protrusion 129 of the barrel portion 117, and rotates due to the elastic force (restoring force) of the connecting portion 233 and the abutment between the second wrist protrusion 240 and the lower end of the second wrist portion 232, and the second wrist protrusion 240 is engaged in the locking recess 77. That is, the stopper sleeve 230 and the sealing cap 70 are fixed to each other before the liquid needle 170 passes through the needle seal 200.

[0316] like Fig.51 As shown in FIG. 1 , when the second wrist protrusion 240 of the second wrist 232 is engaged with the locking recess 77, as shown in FIG. Fig.52 As shown, the first arm portion protrusion 237 of the first arm portion 231 is maintained in contact with the outer peripheral surface of the seal cap middle diameter portion 72 of the seal cap 70 .

[0317] like Figure 2 As shown, when the device connector 100 is further lowered, the liquid needle 170 and the gas needle 175 penetrate the container seal 90, the hole 172 of the liquid needle 170 is arranged in the liquid flow path structure part L3, and the hole 172 of the gas needle 175 is arranged in the gas flow path structure part L4.

[0318] Since the hole 172 of the liquid needle 170 is arranged in L3, the liquid flow path structure L3 of the container connector 20 is in communication with the liquid needle 170. Since the liquid flow path structure L3 is in communication with the liquid needle 170, a liquid flow path L1 is formed. Since the hole 172 of the gas needle 175 is arranged in L4, the gas flow path structure L4 of the container connector 20 is in communication with the gas needle 175. Since the gas flow path structure L4 is in communication with the gas needle 175, a gas flow path L2 is formed.

[0319] like Fig.53 and Fig.54 As shown in FIG. 1 , when the tool connector 100 is further lowered, the first guide protrusion 75 abuts against the upper end of the first guide groove 126. In addition, the second guide protrusion 182 abuts against the upper end of the second guide groove 127. By the above-mentioned abutment, the movement of the head cover 180 and the container connector 20 on the contour body 111 is restricted. That is, the tool connector 100 is lowered to a so-called bottoming state.

[0320] The operator realizes that the liquid flow path L1 and the gas flow path L2 are formed when the instrument connector 100 is lowered to the bottom. When the instrument connector 100 is lowered to the bottom, the operator operates the syringe 7 to collect the drug solution from the container 1. The drug solution moves from the container 1 to the syringe 7 through the liquid flow path L1.

[0321] Next, the operation of separating the container connector 20 from the appliance connector 100 will be described. When separating the container connector 20 from the appliance connector 100, the operator presses the operating portion 165 of the engaging member 160 radially inward to a position where the engagement between the engaging portion 161 and the engaged portion 78 of the sealing cap 70 is released.

[0322] Next, the operator lifts the tool connector 100. The head cover 180 is fixed to the sealing cover 70 by the second arm portion 232 of the stopper cover 230. Therefore, when the tool connector 100 is lifted, the contour body 110, the liquid needle 170, and the gas needle 175 move upward relative to the head cover 180 and the needle seal 200.

[0323] The outline body 110, the liquid needle 170, and the gas needle 175 move upward relative to the head cover 180 and the needle seal 200, thereby the liquid needle 170 and the gas needle 175 move upward in the container seal 90. When the device connector 100 is lifted by a predetermined distance, the liquid needle 170 and the gas needle 175 are pulled out from the container seal 90. The container seal 90 uses the restoring force to seal the hole formed by the liquid needle 170 and the gas needle 175 in a liquid-tight and air-tight manner. In addition, the hole 172 of the liquid needle 170 is sealed by the needle seal 200. The hole 172 of the gas needle 175 is sealed by the needle seal 200.

[0324] Furthermore, when the device connector 100 is further lifted by a predetermined distance after the liquid needle 170 and the gas needle 175 are pulled out from the container seal 90, the second wrist portion 232 is rotated by the lock release protrusion 129 of the barrel portion 117, whereby the second wrist protrusion 240 of the second wrist portion 232 moves radially outward from the lock recess 77, and the engagement between the second wrist protrusion 240 and the lock recess 77 is released. That is, the fixing of the stopper sleeve 230 and the seal cap 70 is released.

[0325] In this state, the portion of the liquid needle 170 where the hole 172 is formed and the portion of the gas needle 175 where the hole 172 is formed are housed in the needle seal 200, and both holes 172 are sealed by the needle seal 200. The needle seal 200 seals the hole formed by the liquid needle 170 and the gas needle 175 liquid-tightly and air-tightly by means of a restoring force.

[0326] It should be noted that the hole 172 of the liquid needle 170 and the hole 172 of the gas needle 175 extend from the container seal 90 at the same time and are housed in the needle seal 200 at the same time.

[0327] In this way, the liquid flow path L1 is divided, the liquid needle 170 which is a portion of the liquid flow path L1 formed in the instrument connector 100 is sealed, and the liquid flow path structure portion L3 which is a portion of the liquid flow path L1 formed in the container connector 20 is sealed.

[0328] Similarly, the gas flow path L2 is divided, the gas needle 175 as a portion of the gas flow path L2 formed in the instrument connector 100 is sealed, and the gas flow path structure L4 as a portion of the gas flow path L2 formed in the container connector 20 is sealed.

[0329] When the seal cover 70 and the head cover 180 are released from being fixed and the device connector 100 is further lifted, the seal cover 70 moves downward relative to the first arm portion 231 of the stop sleeve 230. Since the seal cover 70 moves downward relative to the first arm portion 231, the force applied by the outer peripheral surface of the seal cover 70 to the first arm portion 231 is released.

[0330] When the force from the outer peripheral surface of the seal cover 70 is released, the first arm 231 rotates by the elastic force (restoring force) of the connecting portion 233. The first arm 231 rotates so that its upper end is disposed below the locking protrusion 128. That is, the first arm 231 is in a state of being engageable with the locking protrusion 128.

[0331] Since the first wrist portion 231 is in a state that can be engaged with the locking protrusion 128, the head cover 180 can be prevented from moving from the following state, that is, the portion of the liquid flow path L1 formed in the instrument connector 100, that is, the liquid needle 170 is sealed, that is, the hole 172 is sealed by the needle seal 200, and the portion of the gas flow path L2 formed in the instrument connector 100, that is, the gas needle 175 is sealed, that is, the hole 172 is sealed by the needle seal 200.

[0332] Next, use Figures 44 to 46 , the operation of the engaging member 160 during the connection operation of the device connector 100 and the container connector 20 will be described.

[0333] like Fig.44 As shown, when the container connector 20 is not inserted into the device connector 100, as shown in FIG. Fig.45 As shown, when the container connector 20 is inserted into the utensil connector 100 , the engaged portion 78 of the sealing cover 70 contacts the lower surface 164 of the engaging portion 161 .

[0334] As the container connector 20 is further inserted into the appliance connector 100, the sealing cover 70 moves on the lower surface 164. Fig.46 As shown, when the container connector 20 is inserted into the device connector 100, the engaging portion 161 passes over the engaged portion 78. Since the engaging portion 161 passes over the engaged portion 78, the upper surface 162 of the engaging portion 161 and the lower surface 79 of the engaged portion 78 are opposed to each other in the vertical direction, and the upper surface 162 and the lower surface 79 are in contact, so that the engaging member 160 is engaged with the engaged portion 78. When the engaging portion 161 is engaged with the engaged portion 78, the fulcrum portion 168 abuts against the connecting portion 233 of the stopper sleeve 230. Since the engaging member 160 is engaged with the engaged portion 78, the state of connection between the container connector 20 and the device connector 100 is fixed.

[0335] Next, use Fig.47 , the operation of the engaging member 160 when the container connector 20 is separated from the appliance connector 100 will be described.

[0336] The operator presses the operating portion 165 inwardly of the body body 111. As the operating portion 165 is pressed inwardly of the body body 111, a moment acts on the engaging member 160 below the fulcrum 168 in a direction in which the engaging portion 161 extends outwardly from the body body 111.

[0337] like Fig.47 As shown, due to the moment, the deformation portion 166 bends, thereby the engaging portion 161 is moved to a position where the engagement with the engaged portion 78 is released. In addition, due to the moment, the posture adjustment portion 167 bends, thereby the upper surface 162 of the engaging portion 161 still maintains a posture orthogonal to the up-down direction, and the engaging portion 161 is moved to a position where the engagement with the engaged portion 78 is released. When the engaging portion 161 moves to a position that is not opposite to the engaged portion 78 in the up-down direction, the engagement between the engaging portion 161 and the engaged portion 78 is released.

[0338] The engaging member 160 of the device connector 100 thus configured has a structure in which the operating portion 165 is arranged on the opposite side of the fixing portion 169 across the engaging portion 161. Therefore, when the container connector 20 is attempted to be pulled out of the device connector 100, the engaging portion 161 is pressed by the engaged portion 78, thereby generating a rotational moment that acts in a direction in which the engaging member 160 tilts toward the inside of the contour body main body 111 with the fixing portion 169 as the center.

[0339] This rotational moment applies force to the engaging portion 161 in the direction opposite to the moving direction for releasing the engagement with the engaged portion 78. Therefore, even if force is applied in the direction of pulling the container connector 20 out of the device connector 100, the engagement between the engaging portion 161 and the engaged portion 78 will not be released. In addition, since the engaging member 160 has a fulcrum portion 168 that abuts against the container connector 20 between the engaging portion 161 and the operating portion 165, and a deforming portion 166 between the fixing portion 169 and the engaging portion 161, it is possible to form a structure that operates by pressing the operating portion 165 toward the inner side of the contour body main body 111. Therefore, when operating the operating portion 165, the operator only needs to press the operating portion 165. Therefore, the operability of the operating portion 165 can be improved.

[0340] As described above, according to the engagement member 160 , operability can be improved and unlocking due to pulling can be prevented.

[0341] Furthermore, since the engaging member 160 is structured to include the posture adjusting portion 167, the upper surface 162 of the engaging portion 161 does not tilt when the engaging portion 161 and the engaged portion 78 are released from engagement. Therefore, the engaging portion 161 can be smoothly moved relative to the engaged portion 78. As a result, the operating force of the operating portion 165 for releasing the engagement of the engaging portion 161 and the engaged portion 78 can be reduced.

[0342] Furthermore, since the head cover 180 has the guide 194, when the liquid needle 170 and the gas needle 175 are inserted into the needle seal 200 during the assembly of the instrument connector 100, it is possible to prevent the needles 170 and 175 from being tilted, such as being offset in the insertion direction of the needle seal 200 and the axial direction of the needles 170 and 175. As a result, since it is possible to prevent a gap from being generated between the needle seal 200 and the needles 170 and 175, it is possible to prevent the sealing performance between the needle seal 200 and the needles 170 and 175 from being reduced.

[0343] In addition, the outer diameter of the first fitting portion 96 is set to a diameter larger than the inner diameter of the opening of the liquid flow path structure portion L3, and the outer diameter of the second fitting portion 97 is set to a diameter larger than the inner diameter of the opening of the gas flow path structure portion L4. Therefore, the first fitting portion 96 and the second fitting portion 97 are compressed radially inward in a state where the opening of the liquid flow path structure portion L3 and the opening of the gas flow path structure portion L4 are arranged. As a result, the pressure generated on the surface of the needles 170 and 175 from the first fitting portion 96 and the second fitting portion 97 increases. Therefore, when the needles 170 and 175 are pulled out of the container seal 90, the drug liquid attached to the surface of the needles 170 and 175 is wiped by the first fitting portion 96 and the second fitting portion 97, thereby preventing the drug liquid from leaking out of the container seal 90.

[0344] Furthermore, the end surface 148 of the flange 147 of the inner sleeve 140 is configured as an inclined surface in which the upper end 148b of the end surface 148 is arranged on the central side of the air bag storage portion 150 relative to the lower end 148a. Therefore, a wide gap can be ensured between the upper end of the air bag 152 and the upper surface 150a inside the air bag storage portion 150. As a result, when the air bag 152 is inflated, it is possible to prevent the air bag 152 from contacting the upper surface inside the air bag storage portion 150, so that the air bag 152 can be prevented from falling off from the end surface 148 of the flange 147.

[0345] Furthermore, the upper surface of the internal space of the air bag storage portion 150 is configured in a dome shape protruding upward, thereby increasing the gap between the upper end of the folded air bag 152 and the upper surface of the internal space of the air bag storage portion 150 .

[0346] It should be noted that, in the case where the fixing portion 146 is arranged below the center in the vertical direction of the air bag storage portion 150, the end surface 148 is arranged such that the lower end 148a of the end surface 148 is arranged on the center line side of the air bag storage portion 150 relative to the upper end 148b. In the case of this structure, a wide gap can be ensured between the lower end of the air bag 152 and the bottom surface 150b of the internal space of the air bag storage portion 150. As a result, when the air bag 152 is inflated, it can be prevented from contacting the bottom surface 150b of the internal space of the air bag storage portion 150, so that the air bag 152 can be prevented from falling off from the end surface 148 of the flange 147.

[0347] In addition, if Figure 6 As shown in the figure, the guide surface 54 of the engaging portion 43 of the container connector 20 is configured in a fan-shaped shape when viewed from below. In other words, the other end edge 56 of the guide surface 54 is configured in a shape that is assumed to abut against the flange 5 of the maximum diameter. Therefore, the maximum value of the outer diameter of the flange 5 of the container 1 to which the container connector 20 can be fixed can be increased, and the engaging portion 43 can be prevented from being enlarged.

[0348] This effect will be described in detail.

[0349] Since the other end edge 56 of the guide surface 54 is formed in a shape that is assumed to abut against the flange 5 of the maximum diameter, it is possible to prevent the length of the guide surface 54 from the abutting portion 53 to the lower end along the axis C3 from increasing. In other words, by increasing the circumferential length of the lower end of the guide surface 54 along the axis C3, the maximum value of the diameter of the flange 5 of the connectable container 1 can be increased.

[0350] In addition, the length of one end of the guide surface 54 on the contact portion 53 side, in other words, the upper end, along the axis C3 is shorter than the length of the lower end of the guide surface 54 along the axis C3, so that the engaging portion 43 can be prevented from colliding with the upper end of the outer surface of the barrel portion 2 of the container 1. For example, in a structure in which a pair of other end edges 56 of the guide surface 54 are parallel, since the length from the upper end to the lower end of the guide surface 54 is increased, the guide surface 54 needs to be in a state substantially orthogonal to the axis C3 when the contact portion 53 contacts the neck 4. However, in this structure, the engaging portion 43 is enlarged.

[0351] In contrast, Figure 6 As shown, when the guide surface 54 is fan-shaped when viewed from below, the circumferential length of one end of the guide surface 54 on the contact portion 53 side is short, so the engaging portion 43 is unlikely to collide with the barrel portion 2 of the container 1. As a result, since it is not necessary to increase the length from the upper end to the lower end of the guide surface 54, it is possible to suppress the engaging portion 43 from being enlarged.

[0352] In addition, the other end edge 56 is formed into a shape that contacts the flange 5 of the assumed maximum diameter. Therefore, the distance between the contact position of the flange 5 of the assumed maximum diameter of the first guide surface structure 54A and the contact position of the flange 5 of the assumed maximum diameter of the second guide surface structure 54B can be increased. Therefore, the guide surface 54 can be prevented from swinging relative to the flange 5 in a direction parallel to the line segment connecting the two points of the flange 5 of the guide surface 54 contacting, so that the container connector 20 can be stabilized relative to the container 1 in the process of the flange 5 being guided to the contact portion 53 by the guide surface 54.

[0353] In addition, by configuring the other end edge 56 of the guide surface 54 to be in a shape that abuts against the flange 5 of the assumed maximum diameter, the distance that the container connector 20 is pressed along the axis C3 from the time when it abuts against the flange 5 by moving the container connector 20 along the axis C3 to the time when the abutting portion 53 is engaged in the neck 4 of the container 1 can be shortened.

[0354] In addition, the guide surface 54 is configured as a curved surface in which the center of curvature of a portion of the guide surface 54 constituting a portion of the cross-sectional edge of the engaging portion 43 orthogonal to the axis C3 is located on the first virtual plane P1 side. Therefore, the gap between the guide surface 54 and the barrel portion 2 of the container 1 can be increased, so that the collision between the guide surface 54 and the barrel portion 2 of the container 1 can be suppressed.

[0355] In addition, the center portion of the contact portion 53 is recessed in a direction away from the other engaging portion 43 compared to other portions of the contact portion 53. Therefore, since the neck portion 4 having a smaller outer diameter contacts both ends of the recess, it is possible to prevent the distance between two points of the neck portion 4 having a smaller outer diameter contacted by one engaging portion 53 from being shortened. As a result, the state in which the neck portion 4 having a smaller outer diameter is clamped by the pair of engaging portions 53 can be stabilized.

[0356] Next, use Fig.55 and Fig.56 A container connector 20A according to a second embodiment of the present invention will be described. It should be noted that components having the same functions as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof will be omitted.

[0357] Fig.55 It is a perspective view showing the structure of the container connector 20A. Fig.56 2 is a cross-sectional view showing the structure of the container connector 20A. The container connector 20A can be fixed to the device connector without the air bag 152 and the structure related to the gas flow path L2. As an example of the device connector, there is a structure in which the air bag 152, the air bag storage part 150, the gas needle 175, and the inner sleeve 140 are omitted from the device connector 100 described in the first embodiment.

[0358] like Fig.55 and Fig.56 As shown, the container connecting member 20A includes a needle component 60A, a sealing cap 70 , and a container sealing member 90 .

[0359] The needle member 60A includes a needle member base 61A, a needle portion 62A, and a tube connection portion 300. The needle portion 62A of the needle member 60A is connected to an infusion bag by being inserted into the infusion bag, for example.

[0360] The needle member base 61A has a structure in which the gas flow path structure L4 is omitted from the needle member base 61 described in the first embodiment. The needle portion 62A extends in a direction inclined relative to the needle member base 61A, or in a direction orthogonal to the needle member base 61A as a specific example. The needle portion 62 has a liquid flow path structure L3 and a gas flow path structure L4 inside.

[0361] The tube connection part 300 extends from the needle part 62A. A tube such as an infusion tube is connected to the tube connection part 300. Specifically, the tube connection part 300 is connected to the tube by inserting a needle provided in the tube and having a flow path inside. The tube connection part 300 is configured as a cylinder connected to the gas flow path structure part L4. A plug 301 is provided at the opening of the tube connection part 300 to block the opening. The needle of the tube is inserted into the plug 301.

[0362] The plug 301 is formed of a resin such as rubber or elastomer and has flexibility. In addition, the plug 301 can be formed to seal the hole formed by inserting a needle provided in the tube in a liquid-tight and air-tight manner by utilizing the restoring force after the needle moves.

[0363] The container connector 20 of the second embodiment can also be fixed to the appliance connector by the engaging member 160 similar to the appliance connector 100 of the first embodiment.

[0364] It should be noted that the engaging member 160 of the first embodiment and the second embodiment is described as an example of a structure provided in the appliance connector 100, but is not limited thereto. The engaging member 160 may also be a structure provided in a first member having an opening, and locking the first member and the second member inserted into the first member through the opening of the first member. In other words, the appliance connector 100 is an example of a first member, and the container connector 20, 20A is an example of a second member.

[0365] In addition, in the first embodiment and the second embodiment, the engaging component 160 is described as an example of a structure having a posture adjustment portion 167, but is not limited to this. In other examples, the engaging component 160 may also be a structure without the posture adjustment portion 167. In the case of this structure, the fulcrum portion 168 and the operating portion 165 are formed continuously in the axial direction of the cylinder portion 117. The engaging portion 161 and the fulcrum portion 168 are formed continuously in the axial direction of the cylinder portion 117. The deformation portion 166 and the engaging portion 161 are formed continuously in the axial direction of the cylinder portion 117. It should be noted that, as described in the first embodiment and the second embodiment, because the engaging component 160 is a structure having a posture adjustment portion 167, the engaging portion 161 can be moved smoothly, and thus it is preferred.

[0366] It should be noted that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made in the implementation stage without departing from the scope of the main purpose. In addition, the various embodiments can also be implemented in appropriate combinations, in which case the combined effect can be obtained. In addition, the above-mentioned embodiments include various inventions, and various inventions can be extracted by combining selected from a plurality of disclosed main structural components. For example, in the case where the problem can be solved and the effect can be obtained even if several main structural components are removed from all the main structural components shown in the embodiments, the structure in which the main structural components are removed can be extracted as an invention.

[0367] Description of Reference Numerals

[0368] 10 Connecting tool; 20 Container connector; 20A Container connector; 30 Container fixing part; 40 Container fixing part body; 41 Base; 42 Wrist; 43 Engaging part; 43A First part; 43B Second part; 44 Hole; 45 Arc part; 46 Rectangular part; 47 Engaging claw; 48 Base; 49 Claw; 50 First wrist; 51 Return part; 52 Second wrist; 53 Abutting part; 53A First abutting part structure; 53B Second abutting part structure; 54 Guide surface; 54A First guide surface structure; 54B Second guide surface structure; 55 One end edge; 56 Edge; 56 Other end edge; 60 Needle component; 60A Needle component; 61 Needle component base; 61A Needle component base; 62 Needle; 62A Needle; 63 Flange ; 64 extension portion; 65 column portion; 66 stopper portion; 67 abutment portion; 70 sealing cover; 71 sealing cover large diameter portion; 72 sealing cover middle diameter portion; 72a upper end portion; 73 sealing cover small diameter portion; 73a opening; 73b edge portion; 73c lower surface; 75 first guide protrusion; 76 inner peripheral surface; 77 locking recess; 78 engaged portion; 79 lower surface; 81 groove; 82 engaged surface; 90 container seal; 93 sealing cover large diameter portion; 94 sealing cover small diameter portion; 95 upper end surface; 96 first fitting portion; 97 second fitting portion; 100 device connector; 110 contour body; 111 contour body main body; 114 top wall portion; 115 syringe fixing portion; 116 liquid needle fixing portion; 117 barrel portion; 117a hole; 117 b inner peripheral surface; 118 force-applying portion; 120 syringe fixing portion body; 121 syringe fixing portion projection; 122 needle holder; 123 projection; 124 base; 124a ratchet; 126 first guide groove; 127 second guide groove; 128 locking projection; 129 unlocking projection; 131 hole; 132 contour body structural member; 134 plurality of pins; 134 pin; 135 plurality of holes; 135 hole; 140 inner sleeve; 141 inner sleeve body; 142 extension portion; 143 hole; 144 gas needle fixing portion; 145 support portion; 146 fixing portion; 147 flange; 148 end surface; 148a lower end; 148b upper end; 150 air bag storage portion; 151 connecting portion; 152 air bag; 160 engaging portion 160a locking mechanism; 161 engaging portion; 162 upper surface; 164 lower surface; 165 operating portion; 166 deformation portion; 167 posture adjustment portion; 168 fulcrum portion; 169 fixing portion; 170 liquid needle; 170 needle; 171 lower end portion; 172 hole; 172 two holes; 173 outer peripheral surface; 175 gas needle; 175 needle; 180 head cover; 181 head cover body; 182 second guide protrusion; 183 outer peripheral surface; 185 first wrist storage recess; 186 second wrist storage recess; 187 fixing protrusion storage recess; 188 entrance portion; 189 holding portion; 190 inner peripheral surface; 191 partition; 192 hole; 193 upper surface; 194 guide; 195 guide body; 196 support portion;197 hole; 198 hole; 200 needle seal; 201 first part; 202 second part; 203 third part; 204 lower end surface; 230 stopper sleeve; 231 first wrist; 232 second wrist; 233 connecting part; 235 surface; 236 fixing protrusion; 237 protrusion for first wrist; 238 lower end surface; 239 surface; 240 protrusion for second wrist; 241 upper surface; 242 lower end surface; 243 surface; 243a central part; 250 force applying member; 300 tube connecting part; 301 plug; L1 liquid flow path; L2 gas flow path; L3 liquid flow path structure; L4 gas flow path structure; L5 gas flow path structure. ;

Claims

1. A locking mechanism that locks a portion of a first component having a cylindrical body portion having a hole passing through in a radial direction and a portion of a second component inserted into the body portion from one end of the body portion by engagement, the locking mechanism being characterized by: an engaged portion formed on an outer surface of the second component; The locking component is a locking component that is fixed at one end to the edge of the hole and is longer in the axial direction of the cylindrical body, and comprises: an operating portion formed at the other end and having a gap between the second portion and the radial direction, a fulcrum portion that is formed continuously with the operating portion in the axial direction of the cylindrical body and contacts the second portion when the operating portion is pressed inwardly in the radial direction, an locking portion that is formed continuously with the fulcrum portion in the axial direction and is constructed as a protrusion that protrudes inwardly in the radial direction and for the locked portion to be engaged in the axial direction, and a deformation portion that is formed continuously with the locking portion in the axial direction and is bent when the operating portion is pressed inwardly in the radial direction so as to move the locking portion outwardly in the radial direction.

2. The locking mechanism according to claim 1, characterized in that: A posture adjustment portion is provided, the posture adjustment portion being formed between the engaging portion and the fulcrum portion, and when the operating portion is pressed inward in the radial direction, the posture of the engaging portion when it moves due to the bending of the deformable portion is maintained at the posture when it is engaged with the engaged portion.

3. An appliance connector, characterized in that: have: The barrel portion is configured to be cylindrical in shape into which a container connector fixed to the container, having a container-side flow path structure portion inside and having an engaging portion on the outer surface can be inserted from one end, and a hole is formed at a position opposite to the container connector in the radial direction; an apparatus side flow path structure portion, which is accommodated in the barrel portion and communicates with the container side flow path structure portion when the container connector is inserted into the barrel portion; The locking component is a locking component that is fixed at one end to the edge of the hole and is longer in the axial direction of the cylindrical body, and comprises: an operating portion formed at the other end and having a gap between the operating portion and the container connector in the radial direction, a fulcrum portion that is formed continuously with the operating portion in the axial direction and contacts the container connector when the operating portion is pressed inward in the radial direction, a locking portion that is formed continuously with the fulcrum portion in the axial direction and is constructed as a protrusion that protrudes inward in the radial direction and is engaged with the locked portion in the axial direction when the container-side flow path structure portion and the instrument-side flow path structure portion are connected, and a deformation portion that is formed continuously with the locking portion in the axial direction and moves the locking portion outward in the radial direction by bending when the operating portion is pressed inward in the radial direction.

4. The appliance connector according to claim 3, characterized in that A posture adjustment portion is provided, the posture adjustment portion being formed between the engaging portion and the fulcrum portion, and when the operating portion is pressed inward in the radial direction, the posture of the engaging portion when it moves due to the bending of the deformable portion is maintained at the posture when it is engaged with the engaged portion.

5. A connecting device, characterized in that: have: A container connector, which is fixed to the container and has a container-side flow path structure portion inside and a clamping portion formed on the outer surface; The device connector comprises: a cylindrical body portion configured to be able to insert the container connector from one end and having a hole formed at a position opposite to the container connector in the radial direction, a device side flow path structure portion housed in the cylindrical body portion and communicating with the container side flow path structure portion when the container connector is inserted into the cylindrical body portion, and a locking member, The engaging component is an engaging component that is fixed at one end to the edge of the hole and is longer in the axial direction of the cylindrical body, and the engaging component comprises: an operating portion formed at the other end and having a gap between the operating portion and the container connector in the radial direction, a fulcrum portion that is formed continuously with the operating portion in the axial direction and contacts the container connector when the operating portion is pressed inward in the radial direction, an engaging portion that is formed continuously with the fulcrum portion in the axial direction and is constructed as a protrusion that protrudes inward in the radial direction and is engaged with the engaged portion in the axial direction when the container-side flow path structure portion and the instrument-side flow path structure portion are connected, and a deformation portion that is formed continuously with the engaging portion in the axial direction and bends to move the engaging portion outward in the radial direction when the operating portion is pressed inward in the radial direction.

Images