JP2018196649A - Self-injection aid - Google Patents

Abstract

To provide a self-injection aid capable of facilitating removing a cover from a syringe body.SOLUTION: The injection aid which holds a syringe and removes a cover for covering the injection needle of a syringe comprises: a body; a holder which fixes an axial position along the center axis of the syringe and holds the syringe; and a pressing member which houses the holder in an axially movable manner and is fitted slidably to the body, thus pressing the lid to remove when the member is pushed from a position pulled out from the body to a position housed in the body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a self-injection aid.

  A self-injection aid for assisting self-injection in which a patient himself injects a therapeutic agent filled in the syringe, wherein the syringe includes an outer cylinder, an inner cylinder movable in the outer cylinder in the axial direction, and an outer cylinder A collar attached to one end of the cylinder, an injection needle connected to a small diameter part 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 part; The injection assisting device includes a main body for fixing the syringe and a transparent cover that is openable and closable with respect to the main body, and the cover is attached to the main body when the syringe is fixed to the main body at a correct position. The self-injection aid can be closed and locked, and the needle cap removal mechanism for removing the needle cap of the syringe and the needle cap removal mechanism in response to the closing operation of the cover with respect to the main body. Self-injection assist with operating mechanism Is known (Patent Document 1).

JP 2011-98133 A

  An object of this invention is to provide the self-injection assistance tool which can set a syringe easily and can remove a cover body easily from a syringe main body.

In order to solve the above-mentioned problem, the self-injection assisting device according to claim 1,
An injection assisting tool that holds a syringe and removes a lid that covers the injection needle of the syringe,
The body,
A holder for holding the syringe by fixing a position in the axial direction along the central axis of the syringe;
The holding body is accommodated so as to be movable in the axial direction and is slidably mounted on the main body, and the lid is removed when the holding body is pushed into a position accommodated in the main body from a position pulled out of the main body. And a pressing member that presses
It is characterized by that.

The invention according to claim 2 is the self-injection assisting device according to claim 1,
When the pressing member is pushed into the main body, the holding member comes into contact with the main body and stops moving. When the pressing member moves further toward the main body toward the position where the lid body is removed, Having an engaging claw that engages with the formed engaging hole,
It is characterized by that.

The invention according to claim 3 is the self-injection assisting device according to claim 1 or 2,
The holding body is urged in the axial direction via an urging member so as to be moved toward the main body in a state of being accommodated in the pressing member, and is movably accommodated.
It is characterized by that.

The invention according to claim 4 is the self-injection assisting device according to any one of claims 1 to 3,
A window portion is formed in which the position where the piston of the syringe is pushed into the main body is visible,
It is characterized by that.

The invention according to claim 5 is the self-injection assisting device according to any one of claims 1 to 4,
The device further includes a contact tool that comes into contact with the injection body when injecting, and the support device is movably provided on the main body between a state of covering the injection needle and a state of exposing the injection needle.
It is characterized by that.

  According to the first aspect of the present invention, it is possible to easily remove the lid from the syringe body as compared with a configuration that does not include a holder that holds the syringe and is slidably mounted on the body. .

  According to invention of Claim 2, compared with the case where it does not have an engaging claw engaged with the engaging hole part formed in the main body, the pressing member is fixed at the removal position of the lid, and the lid is Can be removed reliably.

  According to invention of Claim 3, a syringe can be fixed to a fixed position with respect to a main body.

  According to invention of Claim 4, the position of the piston of a syringe can be visually recognized from the outside.

  According to the fifth aspect of the present invention, it is possible to operate safely compared to a configuration that does not have a fitting provided movably on the main body between a state where the injection needle is covered and a state where the injection needle is exposed. it can.

(A) is a perspective view which shows the whole structure of the self-injection assistance tool with which the syringe was set, (b) is a perspective view which shows the self-injection assistance tool in the state which removes the cap of the set syringe, (c) is a cap It is a perspective view which shows the self-injection assistance tool of the state which is extracted and injected. (A) is a perspective view which shows the inside of the self-injection auxiliary tool in which the syringe was set, (b) is a perspective view which shows the inside of the self-injection auxiliary tool in the state of removing the cap of the set syringe. It is a disassembled perspective view which shows the structure of a self-injection assistance tool. (A) is a top view of a 1st main-body part, (b) is a longitudinal cross-sectional view of a 1st main-body part. (A) is a top view of a holding member, (b) is a front view of a holding member, (c) is a longitudinal cross-sectional view of a holding member. (A) is a top view of a pressing member, (b) is a front view of a pressing member, (c) is a longitudinal cross-sectional view of a pressing member. (A) is a longitudinal cross-sectional view which shows the state which sets a syringe to a holding member in the state which pulled out the press member, (b) is a longitudinal cross-sectional view which shows the self-injection auxiliary tool in which the syringe was set, (c) is a press member. The longitudinal cross-sectional view which shows the self-injection assistance tool of the state which pushed in the main body, (d) is a longitudinal cross-sectional view which shows the self-injection assistance tool by which the syringe was set and the cap was removed. (A) is a top view which shows the self-injection assistance tool of the state which can remove the cap and can inject, (b) is a longitudinal cross-sectional view which shows the self-injection assistance device of the state which can remove the cap and can inject. (A) is a top view which shows the self-injection assistance tool in the state which can be injected by pushing a patch, (b) is a longitudinal cross-sectional view which shows the self-injection assistance tool in the state which can be pushed and injected. It is a longitudinal cross-sectional view of a syringe.

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.
In the following description using the drawings, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones, and are necessary for the description for easy understanding. Illustrations other than the members are omitted as appropriate.

(1) Overall Configuration and Operation of Self-Injection Assist Device FIG. 1 (a) is a perspective view showing the overall configuration of the self-injection assist device 1 with the syringe 100 set therein, and FIG. 1 (b) shows the cap 110 of the syringe 100 set therein. FIG. 2C is a perspective view showing the self-injection assisting device 1 in a state of removal, FIG. 2C is a perspective view showing the self-injection assisting device 1 in a state where the cap 110 is removed and injecting, and FIG. The perspective view which shows the inside of the injection assistance tool 1, (b) is a perspective view which shows the inside of the self-injection assistance tool 1 of the state which removes the cap 110 of the set syringe 100, FIG. 10 is a longitudinal cross-sectional view of the syringe 100. is there. Hereinafter, the overall configuration and operation of the self-injection aid 1 according to the present embodiment will be described with reference to the drawings.

  The self-injection assisting tool 1 includes a main body 10, a holding member 20 that holds the syringe 100 in a fixed position in the axial direction, and a holding member 20 that is movable in the axial direction and is slidably mounted on the main body 10. The pressing member 30 is configured to include a pressing member 30 movably provided on the main body 10.

  As shown in FIG. 10, the syringe 100 includes an outer cylinder 101 pre-filled with a specific therapeutic agent, a piston 102 that can move in the outer cylinder 101 in the axial direction, and a small-diameter portion that protrudes from the front end of the outer cylinder 101. 104 is connected to the small diameter portion 104 with a gap G between the injection needle 120 having a passage connected to the inside of the outer cylinder 101 and the front end of the outer cylinder 101 in a state of covering the injection needle 120. A cap 110 is provided. A flange 103 is formed at the rear end of the outer cylinder 101 so as to protrude in a direction intersecting with the central axis of the outer cylinder 101.

  As shown in FIGS. 1 (a) and 2 (a), the syringe 100 is set on the holding member 20 in a state where the pressing member 30 containing the holding member 20 is pulled out of the main body 10, and FIG. 2 (b), when the pressing member 30 is pushed into the main body 10, the syringe 100 moves into the main body 10 while being held by the holding member 20, and stops. When the pressing member 30 is further pushed to the locked position, the pressing member 30 presses the cap 110 covering the injection needle 120 in a state where the syringe 100 is stopped in the main body 10 together with the holding member 20 (in FIG. 2B). Cap 110 is removed from syringe 100 (see arrow R).

  When the cap 110 is removed from the syringe 100, the injection needle 120 is exposed. When the operator presses the application tool 40 against itself, the injection needle 120 protrudes from the application tool 40 as shown in FIG. A self-injection state is reached.

(2) Configuration of Self-Injection Aid Device FIG. 3 is an exploded perspective view of the self-injection aid 1, FIG. 4 (a) is a plan view of the first main body portion 10A, and FIG. 3 (b) is a longitudinal sectional view of the first main body portion 10A. 5A is a plan view of the holding member 20, FIG. 5B is a front view of the holding member 20, FIG. 5C is a longitudinal sectional view of the holding member 20, and FIG. (B) is a front view of the pressing member 30, and (c) is a longitudinal sectional view of the pressing member 30. Hereinafter, the configuration of the self-injection assisting tool 1 will be described with reference to the drawings.

  As shown in FIG. 3, the self-injection assisting tool 1 fixes the position in the axial direction of the main body 10 configured by combining the first main body portion 10A and the second main body portion 10B which are divided vertically, and the syringe 100. A holding member 20 that is held in place, and a pressing member 30 that is slidably mounted on the main body 10 while being movably accommodated in the axial direction in a state in which the holding member 20 is biased toward the main body 10 by a spring 34, And an abutting tool 40 that is urged by a spring 43 so as to protrude toward the front end side of the main body 10 and is movable with respect to the main body 10.

  As shown in FIG. 3, the main body 10 includes a first main body portion 10 </ b> A that supports the pressing member 30 so as to be slidable therein, and a second main body that covers the syringe 100 accommodated inside the first main body portion 10 </ b> A. It consists of a part 10B.

  As shown in FIGS. 4A and 4B, the first main body portion 10 </ b> A includes the main body 10 together with the guide portion 11 erected from the bottom portion 10 </ b> Aa so as to guide the sliding movement of the pressing member 30 and the pressing member 30. A stopper portion 12 that comes into contact with the front end portion of the holding member 20 to be pushed in to prevent the holding member 20 from moving, and an engaging portion 32 formed in the pressing member 30 when the pressing member 30 is pushed into the main body 10. And a support portion 14 that receives one end of a spring 43 that urges the abutment tool 40 so as to protrude toward the front end side of the main body 10.

  As shown in FIG. 3, the second main body portion 10B is configured as a cover that covers the upper side of the first main body portion 10A that is joined to the first main body portion 10A, and has a window on the outer surface 10Ba of the second main body portion 10B. A portion 15 is formed. When injecting, the operator can visually recognize the position of the piston 102 of the syringe 100 from the outside through the window portion 15. In addition, ribs 16 are erected on the inner surface of the second main body portion 10B to prevent the syringe 100 from floating inside the holding member 20 by contacting the outer cylinder 101 of the syringe 100 held by the holding member 20. (See FIGS. 7C and 7D).

  The second main body portion 10B may be formed of a transparent material. The transparent material is not particularly limited, and various known arbitrary thermoplastic resins can be used. Specific examples include polystyrene resin (PS), high impact polystyrene resin (HIPS), polycarbonate resin (PC), and polyethylene terephthalate resin (PET). By forming the second main body portion 10B from a transparent material, the syringe 100 held by the holding member 20 can be easily visually recognized from the outside when the pressing member 30 is pushed in.

  As shown in FIG. 5A, the holding member 20 is a box-like member that opens upward, and is provided on the front end side of the first main body portion 10 </ b> A when pushed into the main body 10 together with the pressing member 30. In addition, the wall portion 21 is in contact with the stopper portion 12 (see FIG. 5C). On the rear end side, a groove portion 22 that fits into the collar portion 103 formed at one end of the outer cylinder 101 of the syringe 100 (on the side opposite to the injection needle 120) is formed, and the syringe 100 is moved in the axial direction within the holding member 20 Fix to immovable.

  As shown in FIG. 5B, projections 23 extending in the axial direction of the syringe 100 to be held are formed on both side surfaces of the holding member 20. The protrusion 23 fits into the long holes 33 (see FIG. 6) formed on both side surfaces of the pressing member 30 in a state where the holding member 20 is accommodated in the pressing member 30, so that the holding member 20 is pressed by the pressing member 30. Is accommodated so as to be relatively movable.

  As shown in FIG. 6A, the pressing member 30 is a box-like member that opens upward, and fits in the gap G between the cap 110 of the syringe 100 and the small diameter portion 104 of the outer cylinder 101 on the front end side. The nail | claw part 31 to insert is formed. When the pressing member 30 is pushed into the main body 10, the claw portion 31 engages with the cap 110 and is held by the holding member 20 that is in contact with the stopper portion 12 and prevented from moving into the main body 10. The cap 110 is removed from the syringe 100.

  Ribs 35 are formed on the front end side (push-in side) of both side surfaces of the pressing member 30 so as to protrude outward. The rib 35 is guided in contact with the guide portion 11 in a state where the pressing member 30 is attached to the first main body portion 10A, and the pressing member 30 is slidably held on the main body 10. When the pressing member 30 is pulled out from the main body 10, the rib 35 is configured to abut against the corner portion 11 a of the guide portion 11 so as not to fall off from the main body 10.

  As shown in FIG. 6B, elongated holes 33 extending in the sliding movement direction of the pressing member 30 are formed on both side surfaces of the pressing member 30. By fitting the protrusion 23 of the holding member 20 into the long hole 33, the holding member 20 is accommodated so as to be movable in the axial direction of the syringe 100 held in the pressing member 30. Further, a wall portion 36 is formed on the inner surface side of the claw portion 31 of the holding member 30, and the distal end wall 24 of the holding member 20 urged toward the main body 10 side by the spring 34 in the pressing member 30 comes into contact. The movement of the holding member 20 into the main body 10 is prevented.

  As shown in FIG. 6C, an engaging portion 32 that protrudes downward is formed on the bottom surface of the pressing member 30, and when the pressing member 30 is pushed into the main body 10, the first main body portion 10 </ b> A. The pressing member 30 to be pushed is fixed to the main body 10 by engaging with the engaging hole 13 formed in the main body 10.

  The pressing member 30 configured as described above accommodates the holding member 20 so as to be movable in the axial direction in a state where the holding member 20 is biased toward the main body 10 by the spring 34. Thus, when the pressing member 30 is pushed into the main body 10, the holding member 20 also moves into the main body 10 together with the pressing member 30, and the wall portion 21 of the holding member 20 contacts the stopper portion 12 of the first main body portion 10 </ b> A. The syringe 100 can be fixed at a fixed position with respect to the main body 10 by urging the holding member 20 to the main body 10 so that the holding member 20 cannot move.

  As shown in FIG. 3, the abutment tool 40 includes a flat surface 41 and a slide guide portion 42, which protrudes from the front end of the main body 10 and is slidably supported with respect to the main body 10. An opening 41a through which the cap 110 of the syringe 100 set on the main body 10 is inserted is formed at the center of the flat surface 41 of the abutment tool 40. When the cap 110 is removed, the injection needle 120 of the syringe 100 is opened at the opening 41a. Can protrude from.

The abutment tool 40 is urged by a spring 43 so as to protrude toward the front end side with respect to the main body 10 (see arrow R1 in FIG. 3), and a stopper 42a formed at one end of the slide guide portion 42 comes into contact with the main body 10. In a state where the cap 110 is removed without dropping from the main body 10, the tip of the injection needle 120 does not protrude outward from the applicator 40. When the operator presses and presses the flat surface 41 of the pad 40 against itself, the pad 40 slides into the main body 10 so that the injection needle 120 can protrude from the opening 41a.
Thereby, the operator can use the self-injection assisting tool 1 in a state where it is stably held.

(3) Cap removal operation FIG. 7A is a longitudinal sectional view showing a state in which the syringe 100 is set on the holding member 20 with the pressing member 30 pulled out, and FIG. 7B is a self-injection with the syringe 100 set. The longitudinal cross-sectional view which shows the auxiliary tool 1, (c) is the longitudinal cross-sectional view which shows the self-injection auxiliary tool 1 in the state which pushed the pressing member 30 into the main body 10, (d) is the syringe 100 set, and the cap 110 was removed. FIG. 8A is a plan view showing the self-injection aid 1 in a state where the cap 110 is removed and can be injected, and FIG. 8B is a self view showing the self-injection aid 1 in a state where the cap 110 is removed and ready for injection. FIG. 9A is a plan view showing the self-injection assisting device 1 in a state in which the abutment device 40 is pushed in and can be injected, and FIG. 9B is a state in which the abutment device 40 is pushed in and injectable. Self-injection aid 1 FIG. Hereinafter, the operation of removing the cap 110 of the syringe 100 set in the self-injection assisting tool 1 will be described with reference to the drawings.

As shown in FIG. 7A, the syringe 100 is set on the holding member 20 in a state in which the pressing member 30 containing the holding member 20 is pulled out from the main body 10. When setting the syringe 100 to the holding member 20, the gap G (see FIG. 10) between the cap 110 and the small diameter portion 104 of the outer cylinder 101 is fitted into the claw portion 31 formed on the front end side of the pressing member 30, This is done by fitting the flange 103 formed at the rear end into the groove 22 of the holding member 20 (see arrow R2 in the figure).
Accordingly, the syringe 100 is fixed to the holding member 20 so as not to move in the axial direction of the syringe 100 (see FIG. 7B).

When the pressing member 30 is pushed in as shown in FIG. 7C in a state where the syringe 100 is set on the holding member 20 (see arrow R3 in the figure), the holding member 20 holding the syringe 100 is moved into the main body 10. The wall portion 21 comes into contact with the stopper portion 12 provided on the first main body portion 10A and stops.
Then, when the pressing member 30 is further pushed into the locked position (see arrow R4 in FIG. 7D), the syringe 100 stops in the main body 10 together with the holding member 20, and the pressing member 30 covers the injection needle 120. 110 is pressed and the cap 110 is removed from the syringe 100 (see FIG. 7D).
Thus, the syringe 100 covered with the injection needle 120 with the cap 110 is set on the holding member 20 pulled out from the main body 10 of the self-injection assisting tool 1, and the operator pushes the pressing member 30 into the main body 10. The cap 110 can be easily removed from the syringe 100 by a simple operation.

When the cap 110 is removed while the syringe 100 is held by the holding member 20, the injection needle 120 is exposed and can be self-injected as shown in FIG. Since the spring 43 is biased so as to protrude from the front end, the injection needle 120 does not protrude outward from the abutment tool 40.
Then, when the operator presses and presses the flat surface 41 of the pad 40 against itself (see arrow R5 in FIG. 9), the pad 40 slides into the main body 10 as shown in FIG. Thus, the injection needle 120 protrudes from the opening 41a and is ready for self-injection.

DESCRIPTION OF SYMBOLS 1 ... Self-injection assistance tool 10 ... Main body 10A ... 1st main body part 11 ... Guide part 12 ... Stopper part 13 ... Engagement hole part 14 ... Support part 10B ... -2nd main-body part 15 ... Window part 20 ... Holding member 21 ... Wall part 22 ... Groove part 23 ... Protrusion part 30 ... Pressing member 31 ... Claw part 32 ... Engagement part 33 ... long hole 34 ... spring 40 ... hitting tool 100 ... syringe 110 ... cap 120 ... injection needle

Claims (5)

An injection assisting tool that holds a syringe and removes a lid that covers the injection needle of the syringe,
The body,
A holder for holding the syringe by fixing a position in the axial direction along the central axis of the syringe;
The holding body is accommodated so as to be movable in the axial direction and is slidably mounted on the main body, and the lid is removed when the holding body is pushed into a position accommodated in the main body from a position pulled out of the main body. And a pressing member that presses
A self-injection aid characterized by that. When the pressing member is pushed into the main body, the holding member comes into contact with the main body and stops moving. When the pressing member moves further toward the main body toward the position where the lid body is removed, Having an engaging claw that engages with the formed engaging hole,
The self-injection assisting device according to claim 1. The holding body is urged in the axial direction via an urging member so as to be moved toward the main body in a state of being accommodated in the pressing member, and is movably accommodated.
The self-injection aid according to claim 1 or 2. A window portion is formed in which the position where the piston of the syringe is pushed into the main body is visible,
The self-injection aid according to any one of claims 1 to 3. The device further includes a contact tool that comes into contact with the injection body when injecting, and the support device is movably provided on the main body between a state of covering the injection needle and a state of exposing the injection needle.
The self-injection assisting device according to any one of claims 1 to 4, wherein

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