Self-injection aids and stands

Abstract

To provide a self-injection aid that allows a syringe to be easily set and a needle cap to be easily removed from the syringe body. [Solution] A self-injection aid that holds a syringe and removes the needle cap that covers the injection needle of the syringe, comprising: a holder that fixes the syringe's position in the axial direction along the central axis to snap the syringe in place; and a movable body that is mounted so as to be slidable in the axial direction between a position pushed out relative to the holder and a position pushed in relative to the holder, and that clamps the needle cap when pushed into the holder from the position pushed out relative to the holder, and removes the needle cap when pushed out relative to the holder.

Description

[Technical Field]

[0001] The present invention relates to a self-injection aid and a stand. [Background technology]

[0002] A self-injection aid is known that assists a patient in self-injection, in which the patient injects a therapeutic drug filled inside a syringe, wherein the syringe comprises an outer cylinder, an inner cylinder that is movable axially within the outer cylinder, a flange attached to one end of the outer cylinder, an injection needle connected to a small-diameter section extending from the other end of the outer cylinder, and a needle cap that covers the injection needle and is fitted to the small-diameter section; the self-injection aid comprises a main body that fixes the syringe, and a transparent cover that can be opened and closed relative to the main body, and the cover can be closed and locked relative to the main body when the syringe is fixed to the main body in the correct position; and the self-injection aid further comprises a needle cap removal mechanism for removing the needle cap of the syringe, and an operating mechanism that operates the needle cap removal mechanism in response to the closing action of the cover relative to the main body (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-98133 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a self-injection aid that allows a syringe to be easily set and a needle cap to be easily removed from the syringe body. [Means for solving the problem]

[0005] In order to solve the above problem, the self-injection aid described in claim 1 comprises: A self-injection aid that holds a syringe and removes a needle cap covering the injection needle of the syringe, a holder for snap-fitting the syringe by fixing the syringe in an axial position along the central axis of the syringe; The holder In the pushed-in state, the holder is biased in the axial direction toward the pushed-out position. When the needle cap is pushed into the holder from the pushed-out position, the needle cap is In a direction intersecting the axial direction sandwiched against the holder At the extruded position a moving body that removes the needle cap when pushed out, It is characterized by:

[0007] Claim 2 The invention described in claim 1 is a self-injection aid, When the movable body is pushed into the holder, the movable body moves the needle cap in a direction intersecting the axial direction. Move The needle cap is removed by releasing the bias of the pressing body when the pressing body is moved to a position where it is pushed out relative to the holding body while pinching the needle cap. It is characterized by:

[0008] Claim 3 The invention described in claim 2 In the self-injection aid described in The pressing body is biased in the pressing direction Towards The needle cap is provided with a protruding plate-shaped metal body, and the needle cap is sandwiched between the pressing body and the plate-shaped metal body so as to be crushed in the outer diameter direction, so that the needle cap is removed when the moving body is pushed out relative to the holding body. It is characterized by:

[0009] In order to solve the above problem, the stand described in claim 4 is A stand that supports from below the self-injection aid according to claim 2 or the self-injection aid according to claim 3, in which the syringe is set, a stand main body having a through hole in the center in a plan view through which the needle cap is inserted, and configured to receive and support the self-injection aid with the syringe set therein from above; a switch body that is slidably provided on the stand body and that is pressed down to release the biasing force of the pressing body; The present invention is characterized by the following.

[0010] Claim 5 The invention described in claim 4 In the stand described in The switch body has a tapered surface that is inclined in a pressing direction, and when the switch body is pressed down, the tapered surface comes into contact with the pressing body, moving the pressing body and releasing the biasing force. It is characterized by: [Effects of the Invention]

[0011] According to the invention of claim 1, the syringe can be easily set, By pressing the moving object The needle cap can be easily removed from the syringe.

[0013] Claim 2 According to the invention described in the above, the needle cap can be pinched and removed from the syringe, and can be easily discharged.

[0014] Claim 3 According to the invention described above, the needle cap can be reliably removed.

[0015] Claim 4 According to the invention described above, the needle cap can be easily removed.

[0016] Claim 5 According to the invention described in the item (1), the removed needle cap can be easily removed. [Brief explanation of the drawings]

[0017] [Figure 1](a) is a perspective view showing the self-injection aid according to this embodiment, with the viewpoint on the moving body side; (b) is a perspective view showing the viewpoint on the holding body side; and (c) is a perspective view showing the self-injection aid with a syringe set in it. [Figure 2] (a) is a diagram showing the state in which the syringe is set in the holder, (b) is a diagram showing the state in which the movable body is pushed into the holder, (c) is a diagram showing the state in which the movable body holding the needle cap is pushed out against the holder, and (d) is a diagram showing the state in which the removed needle cap has been released from the clamping state and the needle cap has been ejected. [Figure 3] FIG. 1 is an exploded perspective view showing the configuration of a self-injection aid according to the present embodiment. [Figure 4] FIG. 10 is a diagram illustrating setting of a syringe in a holder. [Figure 5] FIG. 2 is a diagram illustrating the configuration of a moving body. [Figure 6] 1(a) is a perspective view showing the state in which the syringe is set in the self-injection aid with the movable body pushed out relative to the holder, and FIG. 1(b) is a plan view. [Figure 7] 1(a) is a perspective view showing a state in which the syringe is set in the self-injection aid and the movable body is pressed against the holder, and FIG. 1(b) is a plan view. [Figure 8] 1A is a perspective view showing a state in which the movable body pinches the needle cap and is pushed out toward the holder, and FIG. 1B is a plan view. [Figure 9] FIG. 1(a) is a perspective view showing the state in which the removed needle cap is being ejected from the self-injection aid, and FIG. 1(b) is a plan view. [Figure 10] FIG. 1 is a perspective view showing a self-injection aid and a stand according to the present embodiment. [Figure 11] FIG. 2 is an exploded perspective view showing the configuration of the stand according to the embodiment. [Figure 12] FIG. 1 is a partial cross-sectional perspective view showing a state in which the self-injection aid with the syringe set therein is set on a stand. [Figure 13] FIG. 10 is a partial cross-sectional perspective view showing the self-injection aid pressed downward. [Figure 14]FIG. 10 is a partial cross-sectional perspective view showing the self-injection aid after the pressure on the aid has been released and the needle cap has been removed. [Figure 15] FIG. 10 is a partially sectional perspective view showing a state in which the switch body is pushed in and the needle cap is ejected. [Figure 16] 10A and 10B are diagrams illustrating movement of a pressing body when a switch body is pressed. [Figure 17] FIG. 1A is a diagram showing an example of a syringe, and FIG. 1B is a diagram showing the syringe with the needle cap removed. DETAILED DESCRIPTION OF THE INVENTION

[0018] Next, specific examples of embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments. It should be noted that in the following explanation using the drawings, the drawings are schematic and the ratios of the dimensions, etc. may differ from those of the actual product. For ease of understanding, illustrations of components other than those necessary for the explanation have been omitted as appropriate.

[0019] (1) Overall structure and operation of the self-injection aid 1(a) is a perspective view of the self-injection aid 1 according to this embodiment, with the viewpoint placed on the movable body 20 side, (b) is a perspective view with the viewpoint placed on the holder 10 side, and (c) is a perspective view of the self-injection aid 1 with a syringe 100 set therein. FIG. 2(a) is a diagram showing the syringe 100 set in the holder 10, (b) is a diagram showing the movable body 20 pressed against the holder 10, (c) is a diagram showing the movable body 20 with the needle cap 110 clamped therein pushed out against the holder 10, and (d) is a diagram showing the removed needle cap 110 after being released from clamping and the needle cap 110 has been ejected. FIG. 17(a) is a diagram showing an example of the syringe 100, and (b) is a diagram showing the syringe 100 with the needle cap 110 removed. The overall configuration and operation of the self-injection aid 1 according to this embodiment will be described below with reference to the drawings.

[0020] As shown in Figure 1, the self-injection aid 1 is configured to include a holder 10 that fixes the axial position of the syringe 100 along the central axis C1 to snap the syringe 100 in place, and a movable body 20 that is mounted so as to be slidable in the axial direction between a position pushed out relative to the holder 10 and a position pushed in relative to the holder 10, and that clamps the needle cap 110 when pushed into the holder 10 from the pushed-out position relative to the holder 10, and removes the needle cap 110 when pushed out relative to the holder 10.

[0021] 17, the syringe 100 is configured to include an outer cylinder 101 pre-filled with a specific therapeutic agent, a piston 102 axially movable within the outer cylinder 101, an injection needle 120 connected to a small-diameter portion 104 protruding from the front end of the outer cylinder 101 and having a passage communicating with the inside of the outer cylinder 101, and a needle cap 110 fitted to the small-diameter portion 104 with a gap G between it and the front end of the outer cylinder 101 while covering the injection needle 120. In addition, a flange portion 103 protruding in a direction intersecting with the central axis C1 of the outer cylinder 101 is formed at the rear end of the outer cylinder 101.

[0022] As shown in Figure 2(a), the syringe 100 is set on the holder 10 with the movable body 20 pushed out relative to the holder 10, and as shown in Figure 2(b), when the movable body 20 is pushed into the holder 10 (see the arrows in the figure), the movable body 20 clamps the needle cap 110 that covers the injection needle 120. Then, as shown in Figure 2(c), when the pushing of the movable body 20 toward the holder 10 is released, the movable body 20 is pushed out relative to the holder 10 with the needle cap 110 clamped therein (see the arrows in the figure), and the needle cap 110 is removed from the syringe 100, exposing the injection needle 120. Finally, as shown in Figure 2(d), the clamping of the removed needle cap 110 is released (see the arrows in the figure), and the needle cap 110 is ejected.

[0023] When the needle cap 110 is removed from the syringe 100 and is ejected to the outside from the moving body 20, and the operator presses the front face of the moving body 20 against himself, the injection needle 120 protrudes from the front face of the moving body 20, and the operator is ready to self-inject.

[0024] (2) Configuration of the self-injection aid Figure 3 is an exploded perspective view showing the configuration of the self-injection aid 1 according to this embodiment, Figure 4 is a diagram illustrating how to set the syringe 100 into the holder 10, and Figure 5 is a diagram illustrating the configuration of the movable body 20. The configuration of the self-injection aid 1 will be described below with reference to the drawings.

[0025] As shown in Figure 3, the self-injection aid 1 is configured to include a holding body 10 formed by combining a first case body 10A and a second case body 10B, which are divided into upper and lower halves, and a movable body 20 that is biased by first springs S1, S1 to protrude toward the front end of the holding body 10 and is arranged to be slidable relative to the holding body 10.

[0026] (holding body) As shown in FIG. 3, the holder 10 is composed of a first case body 10A that holds the outer tube 101 of the syringe 100 therein and fixes the position of the syringe 100 in the axial direction along the central axis C1, and a second case body 10B that fits together with the first case body 10A to receive the outer tube 101 of the syringe 100 held therein and accommodates the flange portion 103.

[0027] As shown in Fig. 4, first case body 10A has a rib portion 11 made up of multiple ribs that open upward in the center. A plurality of rib portions 11 are erected in the axial direction along the central axis C1 of syringe 100 to be set, and support from below outer cylinder 101 of syringe 100 that is set from above. Rib 11c (shown in Fig. 3) erected on the front end side receives large diameter portion 101a of outer cylinder 101 of syringe 100 between it and wall 10Aa (shown in Fig. 3) erected on the front end side of first case body 10A, thereby fixing the position of syringe 100 in the axial direction. The upper end of the rib portion 11 is formed with a claw shape 11a that protrudes inside the opening, so that the syringe 100 set through the opening can be snapped in. This makes it easy to set the syringe 100.

[0028] As shown in FIG. 3, the second case body 10B is configured as a cover that mates with the first case body 10A to cover the open upper side of the first case body 10A, and a recessed shape 12 is formed in the second case body 10B to receive the syringe 100 to be set. An opening 12a is formed in the recessed shape 12, and when the second case body 10B is mated with the first case body 10A, a rib portion 11 erected on the first case body 10A is exposed. This allows the syringe 100 to be received in the holder 10 and snap-fastened. As shown in FIG. 1(b), the axial end of the second case body 10B is provided with a wall surface 12b and a rib 12c erected opposite the wall surface 12b, and a groove portion 13 is formed to receive the flange portion 103 of the syringe 100 to be set. The flange portion 103 may be received in the groove portion 13 in the holder 10 to fix the syringe 100 in the axial direction.

[0029] A protrusion 11b is formed on the side surface of the first case body 10A, and an opening 12d into which the protrusion 11b fits is formed on the side surface of the second case body 10B. As a result, the second case body 10B is joined to the first case body 10A by snap fitting, thereby constituting the holder 10.

[0030] (Mobile) As shown in Figure 3, movable body 20 comprises movable body main body 21 slidably attached to holder 10, first springs S1, S1 that bias movable body main body 21 to a position pushed out relative to holder 10, pressing body 22 that is attached movably in a direction intersecting the sliding direction of movable body main body 21, plate-shaped metal body 23 that is attached so as to close a part of opening 221 formed in pressing body 22, second spring S2 that applies a biasing force to pressing body 22 so as to sandwich needle cap 110 between movable body main body 21 and pressing body 22, and cover body 24 that covers the moving structure of pressing body 22 and serves as a pressing surface when the operator presses self-injection aid 1 against himself or herself.

[0031] 3, the movable body main body 21 is made up of a plate 211 with an opening 21a formed in the center, and legs 212, 212 protruding from the holder 10 side of the plate 211. Bosses 213, 213 that support first springs S1, S1 are provided upright on the legs 212. The legs 212, 212 are fitted into openings 10a, 10a formed in the holder 10 via the first springs S1, S1, and the movable body 20 is attached to the holder 10 so as to be slidable relative to the holder 10.

[0032] The pressing body 22 is an L-shaped plate in a plan view, and has an opening 22a formed therein. The pressing body 22 is provided with an elongated hole 22b, and is attached to a boss 21b provided on the movable body main body 21 so as to be movable within the range of the elongated hole.

[0033] Furthermore, a receiving portion 22c against which the tip side of the second spring S2 abuts is formed at one end side of the pressing body 22, and a receiving portion 21c that supports the base end side of the second spring S2 is formed at one end side of the movable body main body 21. As a result, the pressing body 22 is structured to constantly receive the biasing force of the second spring S2 so as to narrow the through hole 20a formed by the combination of the opening 21a of the movable body main body 21 and the opening 22a of the pressing body 22 relative to the movable body main body 21. With this structure, as shown in Fig. 5, when the movable body 20 is pushed into the holding body 10, it clamps the proximal large diameter portion 110b of the needle cap 110 in a direction intersecting the axial direction along the central axis of the syringe 100 (see the arrows in the figure).

[0034] Plate-shaped metal body 23 is a metal plate with tip side 23a bent, and is attached to movable body main body 21 so that tip side 23a protrudes into opening 21a of movable body main body 21. This stabilizes the clamping force when needle cap 110 is clamped between one side 22ab of opening 22a of pressing body 22 and tip side 23a of plate-shaped metal body 23, as shown in Figure 5, and allows needle cap 110 to be reliably removed.

[0035] The cover body 24 has a flat surface 241 that serves as a pressing surface when the operator presses the self-injection aid 1 against himself, and a through-hole 24a is formed in the center of the flat surface 241 to allow the needle cap 110 to be inserted. When the movable body 20 is pressed against the holder 10, it pinches the needle cap 110, and when the needle cap 110 is removed while being pushed out against the holder 10, it is ejected from the through-hole 24a of the cover body 24 by releasing the pressure of the pressing body 22. Furthermore, when the needle cap 110 is removed and the syringe 100 is ejected, the injection needle 120 is exposed, and when the movable body 20 is pressed against the holder 10, the injection needle 120 protrudes from the through-hole 24a of the cover body 24, enabling self-injection.

[0036] (3) Removal of needle cap Figure 6(a) is an oblique view showing the state in which the syringe 100 is set in the self-injection aid 1 with the moving body 20 pushed out against the holding body 10, and (b) is a plan view. Figure 7(a) is an oblique view showing the state in which the syringe 100 is set in the self-injection aid 1 with the moving body 20 pushed out against the holding body 10 with the syringe 100 set in the self-injection aid 1, and (b) is a plan view. Figure 8(a) is an oblique view showing the state in which the moving body 20 has clamped the needle cap 110 and has been pushed out against the holding body 10, and (b) is a plan view. Figure 9(a) is an oblique view showing the state in which the removed needle cap 110 is being ejected from the self-injection aid 1, and (b) is a plan view. The operation of removing needle cap 110 from syringe 100 set in self-injection aid 1 will now be described with reference to the drawings.

[0037] As shown in Figure 6, the syringe 100 is set in the holder 10 with the movable body 20 pushed out relative to the holder 10. The syringe 100 is set in the holder 10 by inserting the small-diameter tip portion 110a (see Figure 17) of the needle cap 110 into the through-hole 20a of the movable body 20, fitting the outer tube 101 into the rib portion 11 exposed at the opening 12a of the holder 10 and snapping it in place, and fitting the flange portion 103 formed at the rear end of the outer tube 101 into the groove portion 13 of the holder 10. As a result, the syringe 100 is fixed to the holder 10 so as not to move in the axial direction of the syringe 100 (see FIG. 6(b)).

[0038] With the syringe 100 set in the holding body 10, as shown in Figure 7(b), when the moving body 20 is pushed in (see arrow R1 in the figure), the moving body 20 moves into the holding body 10 while clamping the large-diameter base end portion 110b (see Figure 17) of the needle cap 110 between one side 22ab of the opening 22a of the pressing body 22 and the tip side 23a of the plate-shaped metal body 23, and then stops.

[0039] Then, when the pushing operation of the movable body 20 is released, the movable body 20 is pushed out by the biasing force of the first spring S1 so as to move away from the holder 10 while still holding the needle cap 110, as shown in Figure 8 (see arrow R2 in the figure). At this time, the syringe 100 is fixed to the holder 10 so as not to move in the axial direction of the syringe 100, and the needle cap 110 is removed from the syringe 100 (see Figure 8(b)).

[0040] 9, when the pressing body 22 is pressed toward the cover body 24 (see arrow R3 in the figure), the biasing force of the second spring S2 acting on the pressing body 22 is released, and the needle cap 110 is ejected. In this way, the syringe 100, whose injection needle 120 is covered with the needle cap 110, is set in the holder 10 of the self-injection aid 1, and the operator pushes the movable body 20 into the holder 10 and then releases the pushing, thereby making it possible to easily remove the needle cap 110 from the syringe 100 by a simple operation.

[0041] When the needle cap 110 is removed while the syringe 100 is held by the holder 10, the injection needle 120 is exposed and ready for self-injection as shown in Figure 9, but the injection needle 120 does not protrude outward from the cover body 24 because the movable body 20 is biased by the first springs S1, S1 against the holder 10 so as to be pushed out from the front end of the holder 10. Then, when the operator presses the flat surface 241 of the cover body 24 against himself, the movable body 20 is pushed into the holder 10 and slides, causing the injection needle 120 to protrude from the through-hole 24a, enabling self-injection.

[0042] (5) Effects of self-injection aids The self-injection aid 1 according to this embodiment comprises a holder 10 that fixes the position of the syringe 100 in the axial direction along the central axis C1 to snap the syringe 100 in place, and a movable body 20 that is mounted so as to be slidable in the axial direction between a position pushed out relative to the holder 10 and a position pushed in relative to the holder 10, and that sandwiches the needle cap 110 when pushed into the holder 10 from the pushed-out position relative to the holder 10, and removes the needle cap 110 when pushed out relative to the holder 10. This allows the syringe 100 to be easily set, and the needle cap 110 to be easily removed from the syringe 10.

[0043] The movable body 20 is mounted so as to be slidable while being biased in the axial direction via first springs S1, S1 so that when the movable body 20 is pushed into the holder 10, it moves toward a position where it is pushed out relative to the holder 10. This allows the needle cap 110 to be clamped by pressing the movable body 20.

[0044] The movable body 20 has a pressing body 22 that is biased to pinch the needle cap 110 in a direction intersecting the axial direction when it is pushed into the holder 10, and when the pressing body 22 pinches the needle cap 110 and moves to a position where it is pushed out relative to the holder 10, the bias of the pressing body 22 is released, causing the needle cap 110 to be released. In this way, the needle cap 110 can be pinched and removed from the syringe 100, allowing it to be easily discharged.

[0045] The movable body 20 is provided with a plate-shaped metal body 23 that protrudes in the biasing direction of the pressing body 22, and the needle cap 110 is sandwiched between the pressing body 22 and the plate-shaped metal body 23 so as to be crushed in the outer diameter direction, so that the needle cap 110 is removed when the movable body 20 is pushed out toward the holding body 10. This allows the needle cap 110 to be removed reliably.

[0046] (6) Stand (6.1) Overall Stand Configuration Figure 10 is a perspective view showing a self-injection aid 1 and stand 2 according to this embodiment, and Figure 11 is an exploded perspective view showing the configuration of stand 2 according to this embodiment. The configuration of stand 2 will be described below with reference to the drawings.

[0047] As shown in FIG. 10, the stand 2 is configured to include a stand main body 200 that receives and supports from above the self-injection aid 1 with the syringe 100 set therein, and a switch body 210 that releases the biasing force of the pressing body 22.

[0048] As shown in Figure 11, stand main body 200 has a recess 201 on its top surface that can accommodate movable body 20 of self-injection aid 1. As shown in Figure 11(b), recess 201 is formed with a depth that can accommodate the thickness of movable body 20 in the movement direction, and has a through-hole 202 in its central portion through which needle cap 110 is inserted. Guide holes 203, 203 that movably guide leg 210B of switch body 210 are formed at one end of stand main body 200.

[0049] 11(a), the switch body 210 is a gate-shaped member made up of a receiving portion 210A that is pressed by the operator and a pair of legs 210B, 210B extending perpendicularly from both longitudinal ends of the receiving portion 210A, and the pair of legs 210B, 210B are attached to guide holes 203, 203 of the stand body 200 via spring bodies S3, S3. As a result, the switch body 210 is biased upward by the spring bodies S3, S3, and becomes slidable relative to the stand body 200 when pressed by the operator.

[0050] Receiving portion 210A is formed with tapered surface 210C that slopes in the downward direction. When switch body 210 is pressed down, tapered surface 210C comes into contact with pressing body 22, moving pressing body 22. This releases the biasing force of second spring S2 acting on pressing body 22, and needle cap 110 is ejected.

[0051] (6.2) Needle cap ejection operation Figure 12 is a partial sectional perspective view showing the state in which self-injection aid 1 with syringe 100 set therein is set on stand 2, Figure 13 is a partial sectional perspective view showing the state in which self-injection aid 1 is pressed downward, Figure 14 is a partial sectional perspective view showing the state in which self-injection aid 1 has been released from the pressed position and needle cap 110 has been removed, Figure 15 is a partial sectional perspective view showing the state in which switch body 210 is pushed in and needle cap 110 is ejected, and Figure 16 is a diagram illustrating the movement of pressing body 22 due to the operation of pushing switch body 210. The operation of removing needle cap 110 from syringe 100 using stand 2 will be described below with reference to the drawings.

[0052] First, as shown in FIG. 12, the moving body 20 of the self-injection aid 1, on which the syringe 100 is set, is set in the recess 201 of the stand main body 200. Next, as shown in Figure 13, the self-injection aid 1 is pressed downward (see arrow R4 in the figure), causing movable body 20 to move toward holder 10 of the self-injection aid 1, and pressing body 22 to clamp proximal large diameter portion 110b of needle cap 110.

[0053] Then, as shown in Figure 14, when the pressure on the self-injection aid 1 is released, the movable body 20 is pushed away from the holder 10 while still holding the needle cap 110 (see arrow R5 in the figure), and the needle cap 110 is removed from the syringe 100. Finally, as shown in Figures 15 and 16, while supporting the self-injection aid 1, the switch body 210 of the stand 2 is pressed down (see arrow R6 in the figures). When the switch body 210 is pressed down, the tapered surface 210C of the switch body 210 comes into contact with the pressing body 22, moving the pressing body 22 (see arrow R7 in Figure 16(c)). This releases the biasing force of the second spring S2 acting on the pressing body 22, and the needle cap 110 is ejected.

[0054] (7) Effects of the stand Stand 2 according to this embodiment comprises stand main body 200, which has a through-hole 202 in the center in plan view for inserting needle cap 110 and which receives and supports self-injection aid 1 with syringe 100 set therein from above, and switch body 210 which is slidably mounted on stand main body 200 and which, when pressed down, releases the biasing force of pressing body 22. This makes it possible to easily remove needle cap 110. Switch body 210 has tapered surface 210C that slopes in the direction of depression, and when pressed down, tapered surface 210C comes into contact with pressing body 22, moving pressing body 22 and releasing the biasing force. This makes it easier to eject removed needle cap 110. [Explanation of symbols]

[0055] 1...Self-injection aid 10....Retaining body, 10A...First case body, 11...Rib portion, 11a...Claw shape, 10B...Second case body, 12...Concave shape, 13...Groove portion 20 moving body, 21 moving body main body, 22 pressing body, 23 plate-shaped metal body, 24 cover body 2. Stand 200: Stand body, 201: Recess, 202: Through hole, 203: Guide hole, 210: Switch body, 210A: Receiving portion, 210B: Leg, 210C: Tapered surface 100...Syringe 110··Needle cap, 120··Injection needle

Claims

1. A self-injection aid that holds a syringe and removes a needle cap covering the injection needle of the syringe, a holder for snap-fitting the syringe by fixing the syringe in an axial position along the central axis of the syringe; a movable body that is biased in the axial direction toward a position where it is pushed out relative to the holder when it is pressed into the holder from the position where it is pushed out relative to the holder, and that pinches the needle cap in a direction intersecting the axial direction when it is pressed into the holder from the position where it is pushed out relative to the holder, and that removes the needle cap when it is pushed out to the position where it is pushed out relative to the holder. A self-injection aid characterized by:

2. The movable body has a pressing body that is biased to move in a direction intersecting the axial direction and pinch the needle cap when it is pushed into the holding body, and the needle cap is released by releasing the bias of the pressing body when the pressing body has pinched the needle cap and moved to a position pushed out relative to the holding body. The self-injection aid according to claim 1 .

3. The movable body includes a plate-shaped metal body that protrudes in the biasing direction of the pressing body, and the needle cap is sandwiched between the pressing body and the plate-shaped metal body so as to be crushed in the outer diameter direction, so that the needle cap is removed when the movable body is pushed out toward the holding body. The self-injection aid according to claim 2 .

4. A stand that supports from below the self-injection aid according to claim 2 or the self-injection aid according to claim 3, in which the syringe is set, a stand main body having a through hole in the center in a plan view through which the needle cap is inserted, and configured to receive and support the self-injection aid with the syringe set therein from above; a switch body that is slidably provided on the stand body and that is pressed down to release the biasing force of the pressing body; A stand characterized by comprising:

5. The switch body has a tapered surface that is inclined in a pressing direction, and when the switch body is pressed down, the tapered surface comes into contact with the pressing body, moving the pressing body and releasing the biasing force.

5. The stand according to claim 4.

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