A syringe auxiliary device

Abstract

This utility model discloses a syringe auxiliary device. The container body has an insertion port for inserting a syringe, an upper end for mounting the syringe, and a finger-shaped front opening at the upper end of the syringe. The left and right side surfaces gradually approach each other from the upper end downwards. The lower end of the opening / closing cap is axially supported near the lower end of the front opening and can be opened and closed by the front opening. The needle cap has a concave curved surface at its front end and a front opening for penetrating the front end of the syringe. It is located at the front end of the container body and can slide back and forth along the front end direction of the syringe. A spring is disposed between the front end of the container body and the interior of the needle cap, applying force to the needle cap in the front end direction of the container body.

Description

[0001] This application claims priority to the application filed on September 10, 2024, with application number 2024-003053. Technical Field

[0002] This utility model relates to an auxiliary tool for syringes. Background Technology

[0003] Previously, technologies have existed regarding syringe aids to facilitate self-injection. For example, Japanese Patent Application Publication No. 2011-098133 (Patent Document 1) discloses a self-injection aid that helps patients inject therapeutic drugs into a syringe. In this syringe, there is an outer barrel, an inner barrel, a collar, an injection needle, and a needle cap. The inner barrel is axially movable within the outer barrel, and the collar is connected to one end of the outer barrel. The needle is connected to a small-diameter portion extending from the other end of the outer barrel, and the needle cap covers the needle and is connected to the small-diameter portion, covering the injection needle and attaching it to the small-diameter portion. Furthermore, the self-injection aid includes a main body, a cap, a needle cap removal mechanism, and an operating mechanism. The main body holds the syringe in place, and the cap is transparent, openable, and secures the syringe in the correct position on the main body when closed. The needle cap removal mechanism removes the needle cap from the syringe, and the operating mechanism operates by closing the main body. This means that removing the needle cap from the syringe is convenient, the cap will not open during self-injection, reducing patients' resistance to self-injection, and allowing users to check the syringe with the cap closed.

[0004] Furthermore, Japanese Patent Document No. 2017-505218 (Patent Document 2) discloses a self-injection device that assists in injecting a beneficial drug from a syringe. Here, the syringe includes an outer barrel, a shoulder, a needle, a flange, a needle cap, and a plunger. The outer barrel has a first end and a second end, with the shoulder located near the first end. The needle is in fluid communication with the outer barrel and has a bottom end and a needle tip, extending from the first end of the outer barrel. A flange is also provided near the second end of the outer barrel, covering the needle, with one end located near the shoulder. The plunger is movable within the barrel to expel the beneficial drug through the needle. The self-injection device also includes a base and a shield member. Here, the base has a bottom end, a top end, and an outer barrel engagement portion, wherein the outer barrel engagement portion defines a gap having a long axis and is arranged between the bottom end and the top end of the base, having received at least a portion of the outer barrel, and the needle extends a first distance from the top end of the base. The shield member also has a bottom end and a top end, wherein the bottom end of the shield member is movably connected to the base. The shield component can move to a fully extended position and a fully retracted position, which is the distance the tip of the shield component extends from the tip of the base, and the fully retracted position is the distance the top of the shield component retracts from the top of the base. The extended distance is greater than or equal to a first distance, and the retracted distance is less than the first distance. This allows the patient to operate the needle comfortably and easily, and also keeps the needle out of the patient's line of sight.

[0005] Furthermore, Japanese Patent Publication No. 2018-196648 (Patent Document 3) and Patent Publication No. 2018-196649 (Patent Document 4) disclose an injection aid that can fix a syringe and remove a cap covering the syringe needle. In this injection aid, a main body, a retainer, and a pressing member are provided. The retainer fixes the syringe along its central axis. The pressing member houses the retainer in a manner movable along the axial direction and is slidably mounted on the main body. When pressed from a position extending out from the main body to a position housed within the main body, the pressing member presses the cap to remove it. Thus, the cap can be easily removed from the syringe body.

[0006] Furthermore, Japanese Patent Document No. 2020-151107 (Patent Document 5) discloses an auxiliary device for self-injection, which is connected to a syringe with a needle tip covered by a needle cap. This self-injection auxiliary device has a main body, a sliding member, a pair of chuck members, and an operation adjustment member. The main body is a prototype structure capable of accommodating at least a portion of the syringe, and the sliding member is movable relative to the main body after installation. The pair of chuck members have clamping portions, are supported by the sliding portion and disposed within the main body, and an action-limiting portion is disposed within the main body and adjusts the movement of the chuck members. The self-injection auxiliary device can also be configured to be positioned in a first state and a second state. In the first state, by moving the sliding member relative to the main body, the chuck members can approach the clamping members and clamp the needle cap; in the second state, the distance between the clamping members is longer than in the first state, allowing the clamped needle cap to be released. Thus, the needle cap can be removed from the needle without direct contact, and the sharp needle tip is not exposed after the needle cap is removed.

[0007] Furthermore, a syringe auxiliary device is disclosed in Japanese Utility Model Registration No. 3243982 (Patent Document 6). This syringe auxiliary device includes a container body, a front cover, a needle cap, a spring, an adjuster, a pair of first engaging members, a pair of second engaging members, engaging claws, a main body member, a syringe fixing member, and a finger flange fixing member. The container body has a front opening at the front and a bottom opening and a top opening at each of its longitudinal ends. When the syringe is received in the container body through the front opening, the plunger of the syringe extends from the bottom opening, and the needle of the syringe extends from the top opening. The front cover can open and close the front opening of the container body. The needle cap has a bottom opening and a top opening at each of its longitudinal ends, and is located at the longitudinal front end of the container body, allowing it to slide back and forth along the longitudinal direction of the syringe. The spring is located between the front end of the container body and the inner surface of the needle cap, applying force forward to the needle cap. The adjuster allows the syringe needle to be retracted into the container body through the front opening while the syringe needle is being held. Furthermore, a pair of first engaging components are respectively disposed on both sides of the regulator in the short side direction, and a pair of second engaging components are disposed in positions opposite to the two sides of the regulator when the regulator is stored in the container body. By adjusting the engaging position of the first engaging components, the storage position of the regulator can be adjusted at predetermined intervals. A pair of engaging claws are respectively disposed at both ends of the container body in the longitudinal direction. When the pair of first engaging components of the regulator engages with the pair of second engaging components of the container body, they engage with the two ends of the regulator in the longitudinal direction. The main body part has a pair of first engaging components in the regulator, and the syringe receiving part can accommodate the syringe within the regulator, and can be changed according to the shape of the syringe when there are multiple types of syringes. In addition, the finger flange fixing component in the regulator can hold the finger flange of the syringe, and can be changed according to the shape of the finger flange when there are multiple types of finger flanges. Thus, the needle length can be finely adjusted, and excellent versatility is provided for syringes and needles.

[0008] Furthermore, Japanese Patent Publication No. 2022-089800 (Patent Document 7) discloses an auxiliary tool for self-injectors. The auxiliary tool includes a container body, a cap, a pressing sleeve, a first adapter, and one or more alternative adapters. The container body is longitudinally elongated and configured to detachably house an auto-injector along its longitudinal direction, with its front end corresponding to the needle side of the self-injector and its rear end corresponding to the plunger side. The cap is located at the front end of the container body and can slide longitudinally between a forward limit and a backward limit, and is connected to the forward limit by a spring member. When the cap is in the forward limit position, the needle of the auto-injector is covered by the cap. When the auxiliary tool is pressed against the patient's skin, the cap moves to the backward limit, causing the needle of the auto-injector to protrude from the front opening of the cap. The pressing sleeve is located at the rear end of the container body and is the part held by the patient's hand; it can slide longitudinally, allowing the plunger of the auto-injector to move within a predetermined distance. Additionally, the pressing sleeve has a pressing head inside, which presses the plunger head of the autoinjector when the pressing sleeve slides towards the front end of the container body. A first adapter is disposed within the container body to detachably hold the cylinder of the autoinjector in a predetermined holding position (A1) within the first adapter, and is detachably engaged with the container body at each of a plurality of engaging positions (Bx) within the container body. The plurality of engaging positions (Bx) are longitudinally aligned, and at positions corresponding to different lengths (Lx) of the autoinjector needle, by selecting the engaging position (Bx) according to the needle length (Lx), the length of the needle extending from the front opening of the cap during use becomes a constant length (C1). One or more alternative adapters are disposed within the container body in place of the first adapter and are configured to detachably secure the syringe barrel of the autoinjector to a predetermined alternative fixing position (A2) in the alternative adapter. The longitudinal distance (k) from the fixed position (A1) to the alternative fixed position (A2) is a predetermined amount (A2), which is a value preset based on the puncture depth corresponding to the patient, and is different for each alternative adapter. Furthermore, the alternative adapter is configured to detachably engage with the container body at each of a plurality of engagement positions (Bx). By selecting the engagement position (Bx) according to the needle length (Lx), the length of the needle extending from the front opening of the cap during use becomes a constant length (C1) different from a constant length (C2). In this way, the length of the needle extending from the front end of the auxiliary tool can be kept constant, and the length of the needle extending from the front end of the auxiliary tool can be changed to a length suitable for the patient.

[0009] Furthermore, Japanese Patent Document No. 2022-034547 (Patent Document 8) discloses a syringe auxiliary device. This syringe auxiliary device includes a storage chamber, a sliding cover, a retainer, and a baffle. The baffle is located at the end of the storage chamber and has a first through hole through which the syringe needle passes. Multiple scale engagement grooves representing different graduations are arranged along the length of the housing cavity, with the grooves arranged at predetermined intervals and perpendicularly connected to the first through hole. Additionally, an engagement plate is located at the bottom end of the retainer to align with a scale engagement groove, and engages within the scale engagement groove. The sliding cover is slidably mounted on the outer wall of the storage chamber, communicating with the interior of the storage chamber, and is fixedly connected to a push rod of the syringe piston rod. The sliding cover is also driven to reciprocate linearly relative to the storage chamber; when the sliding cover moves toward the baffle, the push rod pushes the piston rod, causing the medication in the syringe to be ejected from the needle. This allows adjustment of the exposed needle length.

[0010] As mentioned above, various technologies exist related to syringe aids; however, using these technologies often complicates the structure of the syringe aid itself, making it difficult for users to attach and remove the syringe. Furthermore, if the main body of the syringe aid is a simple cylindrical shape, the user's hand may slip, and they may not be able to inject correctly, even if they attempt to self-inject while holding the aid. On the other hand, if each component of the syringe aid is complex, it may interfere with the user's hand when holding it, making it difficult to use. These problems cannot be solved by the technologies described in Patent Documents 1 to 8.

[0011] Therefore, the present invention aims to solve the above problems by providing a syringe auxiliary device that allows users to easily install and remove syringes, and also makes it easier for users to inject themselves. Utility Model Content

[0012] One objective of this invention is to provide a syringe auxiliary device that allows users to easily install and remove syringes, and also makes it easier for users to inject themselves.

[0013] To achieve the above objectives, this utility model provides a syringe auxiliary device, which has an insertion port for inserting a syringe, an upper end for setting the syringe, a finger-shaped front opening set at the upper end of the syringe, and a container body whose left and right side surfaces gradually approach each other from the upper end downwards.

[0014] The lower end is axially supported near the lower end of the front opening and has an opening and closing cover that can be opened and closed in the front opening;

[0015] The needle cap has a concave curved surface at the front end and a front opening through which the front end of the syringe passes; the needle cap is located at the front end of the container body and can slide back and forth along the front end direction of the syringe.

[0016] A spring located between the front end of the container body and the interior of the needle cap exerts a force on the needle cap toward the front end of the container body.

[0017] The beneficial effects of this utility model are as follows: It provides a syringe auxiliary device, including a container body, an opening and closing cap, a needle cap, and a spring. The container body has a tip opening into which a syringe can be inserted, and an insertion port for mounting the upper end of the syringe and a handle portion located at the upper end of the syringe. The left and right surface portions gradually approach each other from the top. The opening and closing cap opens and closes at the front opening, and its lower end is pivotally supported at the lower end of the front opening. The needle cap has a concave curved surface at its bottom end and a top opening through which the distal end of the syringe can pass, and the needle cap is located at the bottom end of the container body and extends along the top end of the container body, allowing the syringe to slide back and forth along the top end. A spring is provided between the front end of the container body and the interior of the needle cap, and this spring moves the needle cap towards the top end of the container body.

[0018] The syringe auxiliary device provided by this utility model allows users to easily install and remove syringes, and makes self-injection easier. Attached Figure Description

[0019] Figure 1 This is an exploded view of the syringe auxiliary device.

[0020] Figure 2 A front view of the syringe auxiliary device ( Figure 2 A) and rear view ( Figure 2 B).

[0021] Figure 3 Right side view of the syringe auxiliary device ( Figure 3 A) and left-side view ( Figure 3 B).

[0022] Figure 4 Top view of the syringe auxiliary device ( Figure 4 A) and bottom view ( Figure 4 B).

[0023] Figure 5 A schematic diagram showing the opening and closing of the syringe auxiliary device and the insertion of the syringe.

[0024] Figure 6 This is a schematic diagram of the syringe auxiliary device during syringe insertion.

[0025] Figure 7 A schematic diagram of the opening and closing of the syringe auxiliary device.

[0026] Figure 8 A front view of a syringe assist device held by a user, as an example. Figure 8 A) Front view of the user holding the syringe with the needle cap pressed against the skin. Figure 8 B).

[0027] Figure 9 As an example of a syringe aid, a front view of a user holding the syringe aid and pressing down the needle to perform self-injection. Figure 9 A) Front view of the user removing the syringe accessory needle cap from the skin and resetting it to its original position. Figure 9 B).

[0028] Figure 10 A front view of a syringe assist device where the user pushes the syringe piston upward to open the opening and closing cap.

[0029] Figure 11 This is a schematic diagram of the open and closed caps on a syringe auxiliary device in the open and closed states.

[0030] Figure 12 A perspective view showing the relationship between the front container body and the opening / closing cap in a syringe auxiliary device, and a right-side view showing the opening / closing cap having a locking part.

[0031] In the picture:

[0032] 1. Syringe accessories;

[0033] 2. Syringe;

[0034] 10. Container body;

[0035] 20. Opening and closing the lid;

[0036] 30. Needle cap;

[0037] 40. Spring. Detailed Implementation

[0038] The embodiments of this utility model will now be described with reference to the accompanying drawings to facilitate understanding of this utility model. Furthermore, the following embodiments are merely examples embodying this utility model and are not intended to limit the technical scope of this utility model.

[0039] like Figures 1-4As shown, the syringe auxiliary device 1 of this utility model includes a container body 10, an opening and closing cap 20, a needle cap 30, and a spring 40. Here, the container body 10 further has an insertion port 11 and a front opening 12, wherein the insertion port 11 can insert a syringe 2, and the front opening 12 is shaped to accommodate the upper end 2a of the syringe 2 and the handle 2b provided on the upper end 2a of the syringe 2.

[0040] The left and right side surfaces (left side surface 13a, right side surface 13b) of the container body 10 gradually approach downwards from the upper end 10c of the container body 10. In other words, the left-right dimension of the container body 10 gradually narrows downwards from the upper end 10c of the container body 10. Figure 2 Specifically, the left surface 13a and the right surface 13b form a smooth curved surface that gradually slopes downward.

[0041] The lower end 20a of the opening / closing cover 20 is pivotally supported near the lower end 12a of the front opening 12, and can be opened and closed at the front opening 12. In other words, the opening / closing cover 20 is capable of covering the front opening 12.

[0042] The front end 30a of the needle cap 30 has a concave curved surface and a front opening 30b through which the front end 2c of the syringe 2 passes. In addition, the needle cap 30 is disposed at the front end 10d of the container body 10 and can slide back and forth along the front end direction of the syringe 2.

[0043] In addition, the spring 40 is disposed between the front end 10d of the container body 10 and the inside of the needle cap 30, and applies force to the needle cap 30 toward the front end of the container body 10.

[0044] This allows users to easily install and remove syringe 2, and also makes self-injection easier. First, let me explain in detail... Figure 5 As shown, the user prepares a syringe 2 with a needle cap 2d and an injection needle 2e attached to the front end 2c of the syringe 2, opens the opening and closing cover 20 of the syringe auxiliary device 1, and inserts the syringe 2. The insertion port 11 and the front opening 12 of the syringe 2 are exposed.

[0045] The front opening 12 has a shape that allows the upper end 2a and the handle 2b of the syringe 2 to be mounted. Therefore, the cap 20 opens like a plug, making it easier for the user to insert the syringe 2 into the front opening 12 and the insertion port 11. Furthermore, the cap 20 is configured to open / close relative to the container body 10 in a front-to-back direction rather than a left-to-right direction, allowing any user with dominant hands to easily open / close the cap 20.

[0046] Next, as Figure 6As shown, the user inserts the front end 2c of the syringe 2 into the insertion port 11 of the container body 10, and sets the upper end 2a and the handle 2b of the syringe 2 in the front opening 12 of the container body 10.

[0047] Here, the opening / closing cap 20 is supported by a shaft at the lower end 20a, allowing the front opening 12 to open and close. Therefore, the user can open the opening / closing cap 20 near the upper part of the syringe auxiliary device 1 and easily insert the syringe 2 into the insertion port 11. Furthermore, the user can place the upper end 2a and the handle 2b of the syringe into the front opening 12 and install the syringe.

[0048] Next, as Figure 7 As shown, the user closes the opening / closing cap 20, covering the upper end 2a and handle 2b of the syringe 2. Thus, the syringe 2 is housed in the syringe auxiliary device 1, allowing it to be mounted on the device. In particular, in this invention, the syringe 2 can be installed simply by pressing it into the insertion port 11 of the container body 10 and closing the opening / closing cap 20, thus achieving a simple installation operation.

[0049] like Figure 8 As shown in Figure A, the user holds the syringe aid 1, which houses the syringe 2, with its left side surface 13a and right side surface 13b gradually approaching downwards from the upper end 10c of the container body 10. In other words, the left-right dimension (thickness) of the container body 10 gradually decreases as it faces downwards. Therefore, the syringe aid 1 conforms to the arrangement of the user's knuckles or the shape of their thumb, and is not affected by the size of the user's hand, making the syringe aid 1 a universal shape. As a result, it is convenient to use for any user.

[0050] When the user, facing the elastic force of the spring 40, slides the needle cap 30 towards the top of the container body 10 (opposite to the front end direction), the needle cap 2d of the syringe 2 protrudes from the front opening 30b of the needle cap 30. Therefore, the user removes the needle cap 2d to prepare for injection.

[0051] like Figure 8 As shown in Figure B, the user presses the curved surface 30a of the needle cap 30 onto the affected area of ​​the skin 3. Here, because the curved surface 30a is concave, it easily adheres tightly to the surface of the skin 3, allowing it to naturally fit snugly against the affected area. Furthermore, because the curved surface 30a is concave, it conceals the injection needle 2e. Therefore, even when the user looks at the needle cap 30 from the container body 10, the presence of the curved surface 30a makes it difficult to see the injection needle 2e, reducing the user's fear, pain, anxiety, terror, and stress associated with the injection needle 2e.

[0052] Next, when the user pushes the container body 10 onto the skin 3 via the needle cap 30, the spring force of the spring 40 that applies force to the needle cap 30 is pushed back by the user's pushing force, and the needle cap 30 slides back towards the bottom end of the container body 10. As a result, the injection needle 2e located at the front end 2c of the syringe 2 protrudes from the needle cap 30 and is inserted into the affected area of ​​the skin 3.

[0053] Here, since the needle cap 30 slides relative to the container body 10, it can move smoothly without wobbling. In addition, since the injection needle 2e of the syringe 2 is hidden by the presence of the needle cap 30, the user can perform self-injection without looking directly at the injection needle 2e, thereby reducing the user's fear, pain, anxiety, and stress related to the injection needle 2e.

[0054] In addition, such as Figure 9 As shown in Figure A, when the user presses the plunger 2f (specifically, the plunger head) of the syringe 2 with their finger, the medicine filled inside the syringe 2 can be injected into the affected area of ​​the skin 3 through the injection needle 2e.

[0055] Then, when the user completes the self-injection, such as Figure 9 As shown in Figure B, by removing the container body 10 from the skin 3, the injection needle 2e of the syringe 2 can be pulled out from the affected area of ​​the skin 3. Furthermore, the needle cap 30 is returned to its original position by the force exerted by the spring 40 towards the front end of the container body 10. Thus, the injection needle 2e is housed inside the needle cap 30 through the front opening 30b. Therefore, since the user does not directly look at the injection needle 2e, the user's fear, pain, anxiety, terror, and stress related to the injection needle 2e can be further reduced.

[0056] When the user separates the syringe aid 1 from the skin 3, the syringe 2 is removed from the syringe aid 1.

[0057] Here, for example, when removing syringe 2 from syringe auxiliary device 1, such as Figure 10 As shown, the plunger 2f of the syringe 2 on the connected syringe auxiliary device 1 is pushed up in the opening direction of the opening and closing cap 20, and the handle 2b and the upper end 2a of the syringe 2 are pushed.

[0058] In this invention, since the opening and closing cover 20 corresponds to the shape of the front opening 12 and covers the upper end 2a and handle 2b of the syringe 2, the opening and closing cover 20 opens as the handle 2b and the upper end 2a of the syringe 2 are pushed up. Therefore, the opening and closing cover 20 can also be opened by pushing the plunger 2f, which is used for disassembling the syringe 2, and the syringe 2 can be easily removed from the syringe auxiliary device 1.

[0059] In this invention, the user can easily install or remove the syringe 2, and can easily perform self-injection. In particular, even elderly people or patients with weakened hands due to decreased fingertip sensation can install or remove the syringe 2. Of course, the user can also remove the syringe 2 by hooking the second handle 21 with their fingers instead of pushing up the plunger 2f of the syringe 2.

[0060] Here, there are no particular limitations on the structure of the container body 10, for example, as Figure 1 As shown, hook portions 10a1 extending towards the rear are provided on the left and right sides above the front cover 10a, and hook holes 10b1 are provided on the left and right sides above the rear container body 10b. By clamping the opening / closing cap 20 between the front cover 10a and the rear container body 10b, and hooking the hook portions 10a1 of the front cover 10a onto the hook holes 10b1 of the rear container body 10b, the front cover 10a is fixed to the rear container body 10b. Thus, the container body 10 can be constructed.

[0061] There are no particular limitations on the structure of the opening and closing cover 20, such as Figure 1 As shown, a cylindrical portion 20a1 serving as a shaft and a disc portion 20a2 facilitating smooth rotation for opening and closing are provided at the lower end 20a of the opening / closing cover 20. In the container body 10, a cylindrical portion 10a3 is provided at the lower end 10a2 of the front cover 10a, corresponding to the lower end 12a of the front opening 12. A concave and arc-shaped abutment portion 10b2 is provided at a position opposite to the disc portion 20a2 of the lower end 20a of the opening / closing cover 20. By mounting the cylindrical portion 20a1 of the lower end 20a of the opening / closing cover 20 onto the cylindrical portion 10a3, and abutting the disc portion 20a2 of the lower end 20a of the opening / closing cover 20 against the abutment portion 10b2 of the rear container body 10b, the lower end 20a of the opening / closing cover 20 is axially supported near the lower end 12a of the front opening 12, allowing it to be opened and closed by the front opening 12. Thus, an openable / closed cover 20 can be formed.

[0062] In addition, to assist in opening and closing the cover 20, such as Figure 11 As shown, a first handle portion 14 protruding upwards is provided at the upper end 10c of the container body 10, and a second handle portion 21 protruding upwards is provided at the upper end of the opening and closing lid 20, opposite to the first handle portion 14. Thus, the user can easily open and close the opening and closing lid 20 by hooking the first handle portion 14 and the second handle portion 21 with their fingers.

[0063] There are no particular limitations on the shape of the first handle part 14 and the second handle part 21, such as Figures 1-4As shown, the first handle portion 14 and the second handle portion 21 are preferably shaped to extend in the left-right direction along the container body 10, and are rounded at the corners. Thus, as... Figure 5-9 As shown, when the user installs the syringe 2 on the syringe auxiliary device 1, the shapes of the first handle part 14 and the second handle part 21 will not hinder self-injection, and self-injection can be performed smoothly.

[0064] In addition, regarding the structure of the container body 10 and the opening / closing lid 20, such as Figures 1-2 As shown, a back confirmation window 15 can also be provided on the back of the container body 10b, and a front confirmation window 22 can be provided on the front of the opening / closing cap 20. Thus, the user can immediately identify whether the syringe 2 is installed on the syringe auxiliary device 1 by visually observing the back confirmation window 15 and the front confirmation window 22. Furthermore, when the user installs the syringe 2 on the syringe auxiliary device 1 and self-injects medication, they can immediately confirm the remaining amount of medication in the syringe 2 and the position of the plunger 2f (plunger rod) by visually observing the back confirmation window 15 and the front confirmation window 22.

[0065] Here, the shapes of the rear confirmation window 15 and the front confirmation window 22 are not particularly limited, such as Figures 1-2 As shown, the shape can be a roughly square shape with rounded corners, or it can be a triangular shape, a square shape, a polygonal shape, an ellipse, a circle, etc. Furthermore, the positions of the rear confirmation window 15 and the front confirmation window 22 are not particularly limited; for example, they are preferably positioned facing each other. Additionally, the sizes of the rear confirmation window 15 and the front confirmation window 22 are not particularly limited; for example, they are preferably large sizes occupying a large area on the back of the rear container body 10b or on the front of the opening / closing lid 20.

[0066] Furthermore, on the back side of the container body 10b, a first protrusion 16 and a second protrusion 17 protruding outwards can be provided on the upper left and right sides of the back container body 10b, and a third protrusion 18 protruding outwards can be provided on the lower side of the back container body 10b. Thus, by symmetrically arranging the first protrusion 16, the second protrusion 17, and the third protrusion 18 on both sides and vertically on the back side, the ease of use of the syringe assist device 1 can be improved without affecting the user's dominant hand. Furthermore, when the syringe assist device 1 of this invention is placed on a table, the three points on the back side—the first protrusion 16, the second protrusion 17, and the third protrusion 18—can stably position the syringe assist device 1.

[0067] Here, the shapes of the first protrusion 16, the second protrusion 17, and the third protrusion 18 are not particularly limited; for example, it is preferable to have rounded shapes at the corners. Therefore, if the user grasps the syringe assist device 1 with their hand, there will be no sense of disharmony, and the syringe assist device 1 will naturally adapt to the hand, making self-injection easier for the user. Furthermore, by making the shape of the third protrusion 18 extend along the left-right direction of the container body 10, the third protrusion 18 serves to guide the hand on the rear side, ensuring that the hand does not interfere with the needle cap 30 when grasping the syringe assist device 1.

[0068] Additionally, for the open / closed lid 20, such as Figure 12 As shown, a locking part 20a3 can also be provided on the back side of the lower end 20a to lock onto the lower end 10a2 of the front cover 10a of the container body 10. When the opening / closing cover 20 is closed to the front opening 12, the locking part 20a3 locks onto the lower end 10a2 of the front cover 10a and emits a predetermined sound. Thus, when the user closes the opening / closing cover 20, the locking part 20a3 locks and emits a sound, thereby notifying the user of the closed state of the opening / closing cover 20.

[0069] Furthermore, there are no particular limitations on the materials of the container body 10, the opening and closing cap 20, and the needle cap 30, but materials such as ABS resin, polystyrene, polyethylene, polypropylene, or other resins, or metals such as aluminum, iron, and stainless steel can be appropriately used. Additionally, the opening and closing cap 20 is preferably made of a transparent material so that the installed syringe 2 can be visually confirmed.

[0070] Furthermore, there are no particular limitations on the structure of spring 40; for example, coil springs, leaf springs, etc., can be appropriately used. Also, there are no particular limitations on the material of spring 40; for example, metals such as iron, stainless steel, copper, and nickel alloys can be appropriately used.

[0071] In addition, this invention can also be applied to practice syringes with model needles or practical syringes with actual needles.

[0072] As described above, this invention is not limited to self-injectors; it can be used as a syringe auxiliary device for any syringe. It is effective as a syringe auxiliary device that allows the user to easily install or remove the syringe 2 and easily enable the user to self-inject.

Claims

1. A syringe auxiliary device, characterized in that, include: The container body has an insertion port for inserting a syringe, an upper end for setting the syringe, and a finger-shaped front opening set at the upper end of the syringe, with the left and right side surfaces gradually approaching each other from the upper end downwards. The lower end is axially supported near the lower end of the front opening and has an opening and closing cover that can be opened and closed in the front opening; The needle cap has a concave curved surface at the front end and a front opening through which the front end of the syringe passes; the needle cap is located at the front end of the container body and can slide back and forth along the front end direction of the syringe. A spring located between the front end of the container body and the interior of the needle cap exerts a force on the needle cap toward the front end of the container body.

Images