CN215504892U - Disposable syringe needle dismounting device for insulin injection - Google Patents
Disposable syringe needle dismounting device for insulin injection Download PDFInfo
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- CN215504892U CN215504892U CN202121664388.7U CN202121664388U CN215504892U CN 215504892 U CN215504892 U CN 215504892U CN 202121664388 U CN202121664388 U CN 202121664388U CN 215504892 U CN215504892 U CN 215504892U
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Abstract
The utility model provides a disposable needle head dismounting device for insulin injection, which comprises an outer cylinder body and a clamping component, wherein the outer cylinder body is provided with a clamping groove; a hollow part is arranged in the outer cylinder body; the clamping component is arranged in the outer cylinder body and can axially move in the outer cylinder body; the clamping component can extend out from the head end of the outer cylinder body and is used for clamping and fixing the disposable needle head; the disposable needle can be taken down from the injection pen point end by rotating the outer cylinder after clamping and fixing. The disposable needle dismounting device for insulin injection provided by the utility model has the advantages that the disposable needle is clamped and fixed through the clamping assembly in the using process, the injection pen is controlled to be fixed, the outer barrel is rotated, the disposable needle can be rotationally removed from the end of the injection pen, and the disposable needle is positioned in the outer barrel in the rotating process, so that hands can be protected from being punctured by the disposable needle, the puncturing frequency of medical staff and patients is reduced, and the disposable needle dismounting device is suitable for being used by the insulin injection medical staff and the patients in cooperation with the injection pen.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a device for detaching a disposable needle for insulin injection.
Background
Diabetes mellitus is a metabolic chronic disease characterized by hyperglycemia, which is mainly caused by defects in insulin secretion or by impairment of other biological actions. Diabetes does not have specific medicines at present, and needs to inject insulin for a long time to control blood sugar level, but an injector used for injecting insulin is different from injectors used for other diseases. Because of the need for long-term, timed injections, diabetic patients typically use reusable injection pens to inject insulin, which also can be used to control dosing. The injection pen needs to be matched with a needle for a disposable injection pen for use, the disposable needle is used once and needs to be detached and discarded after use, and the disposable needle is left on the insulin injection pen after injection and is not reusable.
The needle head for the disposable injection pen is connected with the end of the injection pen head through threads. When the injection pen is used for mounting the disposable needle, the paper aseptic sealed needle seat cover paste is firstly torn off, then the needle seat cover paste is aligned with the pen core of the injection pen, the needle is screwed on the injection pen, and then the outer needle cap and the inner needle cap are taken down. When the disposable needle is taken down after the injection is finished, the needle tube head end on the needle is easy to stab in the process of grabbing and rotating the disposable needle to take down due to no protection of the needle cap, and the problem often occurs in the process of injecting insulin by a hospital and a patient. This problem can be avoided if a device can be designed specifically for rotational removal of the disposable needle, but there is no such product in the market today.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the device for detaching the disposable needle for insulin injection, which can assist in taking off the disposable needle from the injection pen in a rotating way, avoids puncture and is convenient to use.
The utility model adopts the following technical scheme for solving the technical problems:
the utility model provides a device for detaching a disposable needle for insulin injection, which comprises:
an outer cylinder body, the interior of which is provided with a hollow part; and
the clamping component is arranged in the outer cylinder body and can axially move in the outer cylinder body; the clamping component can extend out from the head end of the outer cylinder body and is used for clamping and fixing the disposable needle.
Further, the length of the clamping assembly is greater than the length of the outer cylinder.
Further, the clamping assembly includes:
the piston is arranged in the middle of the outer cylinder body;
the pressing head is arranged at the tail end of the piston, one part of the pressing head is positioned in the outer cylinder body, and the tail end of the pressing head extends out of the outer cylinder body; and
the clamping claw flaps are arranged on the periphery of the head end of the piston;
the pressing head can press and apply force to move axially in the outer cylinder body, the piston and the clamping claw piece move axially in the outer cylinder body, and the head end of the clamping claw piece can extend out of the outer cylinder body;
the clamping claw petals have elasticity, the head end of the clamping claw petals extends out of the outer barrel body to be in an open state, and the disposable needle head can extend into the open clamping claw petals; the clamping claw clacks are in a closed state in the outer cylinder body and can form interference fit with the disposable needle.
Furthermore, pressing blocks are arranged on the inner surfaces of the plurality of clamping claw pieces close to the axial lead of the outer cylinder body and used for pressing and fixing the disposable needle head when the claw pieces are closed.
Furthermore, a hoop is arranged on the inner surface of the head end of the outer cylinder body, and the head end of the hoop is a curved surface extending outwards.
Furthermore, a circular groove is arranged in the head end of the piston and is matched with the clamping claw piece to form an accommodating cavity; the head end part of the disposable needle head extends into the accommodating cavity.
Furthermore, a first reset block is arranged on the side surface of the pressing head, a second reset block is arranged on the inner surface of the outer cylinder, and the second reset block is positioned between the first reset block and the piston; the first reset block and the second reset block are connected through an elastic component.
Further, the surface of piston is provided with the axial stopper, and the internal surface of outer barrel is provided with the axial spacing groove, and axial spacing groove and axial stopper match.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:
the utility model provides a disposable needle dismounting device for insulin injection, which is provided with a clamping component capable of grasping and fixing a disposable needle and an outer barrel body; in the use, through the fixed disposable syringe needle of centre gripping subassembly centre gripping, control injection pen is fixed, and rotatory outer barrel can take off disposable syringe needle from injection pen head end is rotatory, and the disposable syringe needle of rotatory in-process is located the urceolus internally, can protect the hand not stabbed by disposable syringe needle, reduces medical personnel and patient's stabbed number of times, is fit for insulin injection medical personnel and patient cooperation injection pen and uses.
Drawings
FIG. 1 is a schematic view of a device for detaching a disposable needle for insulin injection according to an embodiment of the present invention;
FIG. 2 is a schematic view of a disposable needle detaching device for insulin injection according to an embodiment of the present invention;
FIG. 3 is a schematic view of a disposable needle detaching device for insulin injection according to an embodiment of the present invention;
wherein the reference numerals are: 1-outer cylinder, 11-hoop, 12-second reset block, 2-piston, 3-pressing head, 31-first reset block, 4-clamping claw flap, 41-pressurizing block, 5-elastic component and 6-disposable needle.
Detailed Description
The utility model provides a disposable needle disassembling device for insulin injection, which is described in further detail below with reference to the accompanying drawings to better understand the technical scheme of the utility model, but the utility model is not limited by the scope of the utility model.
As shown in fig. 1, the present invention provides a disposable needle detaching device for insulin injection, comprising an outer cylinder 1 and a grip assembly. The outer cylinder 1 is a hollow cylindrical cylinder with a circular section, and a cylindrical hollow part is arranged inside the outer cylinder. The clamping assembly is arranged in the hollow part of the outer cylinder body 1 and can axially move in the outer cylinder body 1; the head end that the centre gripping subassembly can follow outer barrel 1 stretches out for the fixed disposable syringe needle 6 of centre gripping, the fixed back of centre gripping is handheld outer barrel 1 and is rotatory, can take off disposable syringe needle 6 from the rotation of injection nib end, can not be stabbed parts such as finger by disposable syringe needle 6, and is safer.
The length of the clamping component is greater than that of the outer cylinder body 1, and the tail end of the clamping component extends out of the outer cylinder body 1 and is used for pressing to enable the clamping component to move axially in the outer cylinder body 1.
The clamping assembly comprises a piston 2, a pressing head 3 and a plurality of clamping claw pieces 4. The piston 2 is arranged in the middle of the inner part of the outer cylinder 1. The pressing head 3 is arranged at the tail end of the piston 2, one part of the pressing head is positioned in the outer cylinder 1, and the tail end of the pressing head 3 extends out of the outer cylinder 1. A plurality of gripping claws 4 are arranged at the periphery of the head end of the piston 2. The tail end of the pressing head 3 extends out of the outer cylinder body 1, and the piston 2 and the plurality of clamping claw flaps 4 can axially move in the outer cylinder body 1 by pressing the tail end of the pressing head 3, and the head end of each clamping claw flap 4 extends out of the head end of the outer cylinder body 1.
Wherein, the clamping claw flaps 4 have elasticity, the head end is in an open state after extending out of the outer cylinder body 1, and the disposable needle head 6 can extend into the open clamping claw flaps 4; the clamping claws 4 are in a closed state when being arranged in the outer cylinder body 1 and can form interference fit with the disposable needle 6. That is, the holding claws 4 are bent without receiving an external force and are restrained by the outer cylinder 1 when they are positioned in the outer cylinder 1, and are closed in a straight shape. The disposable needle 6 can extend into the space between the opened clamping claw pieces 4, and after the clamping claw pieces 4 return to the inner part of the outer barrel body 1, the diameter after closing is slightly smaller than that of the disposable needle 6, and the closed disposable needle 6 and the disposable needle form interference fit, so that clamping and fixing are realized.
A circular groove is arranged in the head end of the piston 2, and a holding cavity is formed by matching the holding claw piece 4 arranged on the peripheral edge of the head end of the piston 2; the head end part of the disposable needle 6 extends into the accommodating cavity.
In order to clamp and fix the disposable needle 6, the inner surfaces of the plurality of clamping claw pieces 4 close to the axial lead of the outer cylinder body 1 are provided with pressurizing blocks 41 for pressurizing and fixing the disposable needle 6 when the claw pieces are closed. After the clamping claw flaps 4 are opened, the pressurizing block 41 is opened along with the opening, then the disposable needle 6 is extended into the outer barrel body 1, then the clamping claw flaps 4 are returned to the inner side of the outer barrel body 1 through the movement of the pressing head 3, and the disposable needle 6 can be pressed, clamped and fixed by the pressing block 41. The pressing block 41 is made of a material having a certain elasticity and a large friction force, such as rubber, and can press and fix the disposable needle 6 to prevent the needle from slipping.
The diameter of the disposable needle for the injection pen is about 5mm generally, and in the dismounting device provided by the utility model, after a plurality of clamping claw flaps 4 are closed, the distance between two opposite pressing blocks 41 is equal to or slightly smaller than the diameter of the disposable needle 6, so that the disposable needle 6 can be clamped and fixed. The number of the clamping claw pieces 4 can be generally set to be 3-6, so that the disposable needle head 6 can be clamped and fixed conveniently without slipping.
Set up hoop 11 on the internal surface of outer barrel 1 head end, hoop 11's head end is the curved surface of outside extension for carry on spacingly to centre gripping claw lamella 4 when centre gripping claw lamella 4 is located outer barrel 1. The curved surface that 11 head ends of hoop set up can be convenient for the centre gripping claw lamella 4 and resume to crooked state when stretching out outer barrel 1 head end.
In order to press the pressing head 3 and make the clamping claw piece 4 extend out of the head end of the outer cylinder body 1, the clamping claw piece can be restored to a non-pressed state to clamp the disposable needle 6, and the clamping assembly is also provided with a reset structure. The reset structure includes a first reset block 31, a second reset block 12 and an elastic member 5. The first reset block 31 is arranged on the side surface of the pressing head 3, the second reset block 12 is arranged on the inner surface of the outer cylinder body 1, and the second reset block 12 is positioned between the first reset block 31 and the piston 2; the first restoring block 31 and the second restoring block 12 are connected by an elastic member 5.
In a preferred embodiment of the utility model, the elastic member 5 is a spring.
As shown in fig. 2 and 3, after the pressing head 3 is pressed, the first reset block 31 moves in the outer cylinder 1 along with the pressing head 3 and approaches the second reset block 12, so that the elastic component 5 is compressed, after the disposable needle 6 extends into the open grasping claw flap 4, the pressing head 3 is released, and under the elastic force of the elastic component 5, the pressing head 3, the piston 2 and the grasping claw flap 4 move in the outer cylinder 1, so that the grasping claw flap 4 is closed, and the disposable needle 6 is grasped and fixed. After the disposable needle 6 is fixed in the clamping mode, a user can manually hold the fixed injection pen and the outer barrel 1 and rotate the outer barrel 1, the disposable needle 6 can be rotationally taken down from the end of the injection pen head, the disposable needle 6 is located in the clamping claw petals 4 of the plurality of bodies, the pressing head 3 is pressed again at the moment, the clamping claw petals 4 are opened again, the taken-down disposable needle 6 in the clamping claw petals can be released, and the treatment can be carried out. The whole using process comprises pressing, loosening, rotating, pressing again and loosening again, and the use is extremely convenient.
In order to ensure that the clamping assembly can only axially move but can not rotate in the outer cylinder body 1, the outer surface of the piston 2 is provided with an axial limiting block, the inner surface of the outer cylinder body 1 is provided with an axial limiting groove, and the axial limiting groove is matched with the axial limiting block. The length of axial spacing groove should be greater than the length of axial spacing piece, and the partial length that just is greater than can inject the distance that the centre gripping subassembly can be for outer barrel 1 axial displacement, and the technical personnel in the art can set up this distance as required, for example for 5 ~ 15mm etc. to it is accurate to enable centre gripping claw lamella 4 to stretch out outer barrel 1 head end and centre gripping fixed disposable syringe needle 6.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications or alterations to this practice will occur to those skilled in the art and are intended to be within the scope of this invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (8)
1. A disposable needle dismounting device for insulin injection is characterized by comprising:
an outer cylinder (1) having a hollow portion therein; and
the clamping assembly is arranged in the outer cylinder body (1) and can move axially in the outer cylinder body (1); the clamping component can extend out from the head end of the outer barrel body (1) and is used for clamping and fixing the disposable needle (6).
2. The insulin injection disposable needle detaching device according to claim 1, wherein the length of the grip assembly is greater than the length of the outer barrel (1).
3. The insulin injection disposable needle detaching device according to claim 1, wherein the clip assembly comprises:
the piston (2) is arranged in the middle of the inner part of the outer cylinder body (1);
the pressing head (3) is arranged at the tail end of the piston (2), one part of the pressing head is positioned in the outer cylinder body (1), and the tail end of the pressing head (3) extends out of the outer cylinder body (1); and
the clamping claw petals (4) are arranged on the periphery of the head end of the piston (2);
the pressing head (3) can press and apply force to move axially in the outer cylinder body (1) and enables the piston (2) and the clamping claw clacks (4) to move axially in the outer cylinder body (1), and the head ends of the clamping claw clacks (4) can extend out of the outer cylinder body (1);
the clamping claw flaps (4) are elastic, the head ends of the clamping claw flaps extend out of the outer barrel body (1) to be in an open state, and the disposable needle head (6) can extend into the open clamping claw flaps (4); the clamping claw (4) is in a closed state when being arranged in the outer cylinder body (1), and can form interference fit with the disposable needle (6).
4. The device for detaching a disposable needle for insulin injection according to claim 3, wherein a plurality of said holding claws (4) are provided with a pressurizing block (41) on the inner surface thereof near the axial line of said outer cylinder (1) for pressurizing and fixing said disposable needle (6) when said claws are closed.
5. The disposable needle removing device for insulin injection according to claim 3, wherein a hoop (11) is provided on the inner surface of the head end of the outer cylinder (1), and the head end of the hoop (11) is a curved surface extending outward.
6. The device for detaching the disposable needle for insulin injection according to claim 3, wherein a circular groove is arranged in the head end of the piston (2) and cooperates with the clamping claw (4) to form a containing cavity; the head end part of the disposable needle (6) extends into the accommodating cavity.
7. The device for detaching a disposable needle for insulin injection according to claim 3, wherein a first reset block (31) is disposed on a side surface of the pressing head (3), a second reset block (12) is disposed on an inner surface of the outer cylinder (1), and the second reset block (12) is located between the first reset block (31) and the piston (2); the first reset block (31) and the second reset block (12) are connected through an elastic component (5).
8. The device for detaching the disposable needle for insulin injection according to claim 3, wherein an axial stopper is disposed on the outer surface of the piston (2), an axial stopper groove is disposed on the inner surface of the outer cylinder (1), and the axial stopper groove and the axial stopper are matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121664388.7U CN215504892U (en) | 2021-07-21 | 2021-07-21 | Disposable syringe needle dismounting device for insulin injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121664388.7U CN215504892U (en) | 2021-07-21 | 2021-07-21 | Disposable syringe needle dismounting device for insulin injection |
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| Publication Number | Publication Date |
|---|---|
| CN215504892U true CN215504892U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121664388.7U Active CN215504892U (en) | 2021-07-21 | 2021-07-21 | Disposable syringe needle dismounting device for insulin injection |
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| Country | Link |
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| CN (1) | CN215504892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116173356A (en) * | 2023-04-28 | 2023-05-30 | 江苏治宇医疗器材有限责任公司 | Medical injector needle head treatment device |
-
2021
- 2021-07-21 CN CN202121664388.7U patent/CN215504892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116173356A (en) * | 2023-04-28 | 2023-05-30 | 江苏治宇医疗器材有限责任公司 | Medical injector needle head treatment device |
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