CN210355564U

CN210355564U - Push type detachable insulin injection needle

Info

Publication number: CN210355564U
Application number: CN201920450713.6U
Authority: CN
Inventors: 董小方; 杨森
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-04-21
Anticipated expiration: 2029-04-03

Abstract

A press-type detachable insulin injection needle solves the problem that a nurse is easy to stab when taking off the needle; the pen comprises an outer needle cap, an inner needle cap is detachably connected and arranged in the outer needle cap, a first spring and a connecting block capable of sliding left and right are arranged in the inner needle cap, the first spring is arranged on the left side of the connecting block, a needle head is fixed at the left end of the connecting block, the needle head can penetrate out of the inner needle cap, a circular guide groove is formed in the connecting block, a special-shaped groove is formed in the inner wall of the inner needle cap, a ball is arranged in the circular guide groove and can roll in the special-shaped groove, a groove is formed in the right end of the connecting block, the needle head penetrates out of the connecting block and into the groove, a refill frame is fixedly connected with the right end of the inner needle cap in a threaded manner; the utility model discloses can prevent effectively that nurse personnel from being stabbed by the syringe needle, and swift effective, safety and sanitation.

Description

Push type detachable insulin injection needle

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to an insulin syringe needle that push type was dismantled.

Background

Diabetes is a metabolic disease characterized by hyperglycemia, and no radical treatment method exists at present, but insulin injection is a way to effectively control the condition of diabetes. Because of receiving the puzzlement of diabetes, the patient has to carry out a plurality of times injection insulin every day, and the instrument of present injection insulin is many, and the general condition, insulin needle can dismantle the connection through the thread tightening, and the nurse need lift off the syringe needle for the patient has injected the insulin, directly takes off like this and is stabbed by the syringe needle very easily, has caused bodily injury to nurse's personnel, probably causes cross infection etc..

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims at providing an insulin syringe needle that push type was dismantled has solved the easy problem of stabbing of nurse personnel taking off the syringe needle.

In order to achieve the above object, the utility model provides a following technical scheme: the pen cap comprises an outer needle cap, an inner needle cap is detachably connected and arranged in the outer needle cap, a first spring and a connecting block capable of sliding left and right are arranged in the inner needle cap, the first spring is arranged on the left side of the connecting block, a needle head is fixed at the left end of the connecting block, the needle head can penetrate out of the inner needle cap, a circular guide groove is formed in the connecting block, a special-shaped groove is formed in the inner wall of the inner needle cap, a ball is arranged in the circular guide groove and can roll in the special-shaped groove, a groove is formed in the right end of the connecting block, the needle head penetrates out of the connecting block and into the groove, a pen core frame is fixedly connected with the right end of the inner needle cap in a threaded;

the pencil lead frame is fixedly connected with a sleeve, the left end of the sleeve is fixedly connected with a pencil cap, and the right end of the sleeve is fixedly connected with an operation assembly;

the pen cap is provided with a first cavity, a plug capable of sliding left and right is arranged in the first cavity, a first guide groove is formed in the inner wall of the first cavity, a limiting strip is fixedly connected to the outer needle cap, and the limiting strip can be inserted into the first guide groove.

Preferably, a pressing head capable of sliding left and right is arranged on the left side of the pen cap, a pressing rod is fixedly connected to the pressing head, a pressing block is fixedly connected to the upper portion of the pressing rod, a second cavity is formed in the pen cap, a second spring is arranged in the second cavity, the pressing block is arranged at the left end of the second spring, the pressing rod penetrates through the second spring and is fixedly connected with the ejector, and the ejector is arranged at the right end of the pressing rod.

Preferably, the inner wall of the inner needle cap is provided with a second guide groove, the connecting block is fixedly connected with a guide block, and the guide block can slide left and right in the second guide groove.

Preferably, a protection sheet is stuck on the groove.

Compared with the prior art, the beneficial effects of the utility model are that: the needle head of the utility model retracts into the inner needle cap before being used, and then the cleanness of the needle head is ensured through the outer needle cap and the protective paste, so as to avoid being polluted; when in use, the needle head can extend out of the inner needle cap for use, and after use, the needle head can be retracted into the inner needle cap again for safe removal, thereby effectively preventing the danger that nurses are stabbed by the needle head; in addition, the utility model discloses still can be through the pen cap with outer needle cap, interior needle cap and syringe needle integral erection and take off, swift effective, safety and sanitation.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the whole pen cap, the outer needle cap and the inner needle cap after being cut open.

Fig. 3 is a schematic structural view of the outer needle cap and the inner needle cap of the present invention.

Fig. 4 is a schematic view of the connection of the inner needle cap, the cartridge holder and the operation assembly of the present invention.

Fig. 5 is a schematic sectional view of the pen cap, the outer needle cap and the inner needle cap of the present invention.

Fig. 6 is a schematic view of the pen cap of the present invention.

Fig. 7 is a schematic diagram of the overall explosion of the present invention.

Fig. 8 is an overall schematic view of the outer needle cap of the present invention.

Fig. 9 is a schematic view of the expanding structure of the special-shaped groove of the inner needle cap of the present invention.

Fig. 10 is a schematic view of the structure of the cartridge holder of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The attached drawings are simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

The first embodiment is as follows: referring to fig. 1-10, the utility model discloses an outer needle cap 1, can dismantle in the outer needle cap 1 and connect and be equipped with interior needle cap 2, but be equipped with first spring 3 in the interior needle cap 2 and be equipped with connecting block 4 with the horizontal slip, first spring 3 is at the left of connecting block 4, the left end of connecting block 4 is fixed with syringe needle 5, interior needle cap 2 can be worn out to syringe needle 5, be equipped with ring guide slot 6 on the connecting block 4, be equipped with dysmorphism groove 7 on the inner wall of interior needle cap 2, be equipped with ball 8 in the ring guide slot 6, ball 8 can roll in dysmorphism groove 7, the right-hand member of connecting block 4 is equipped with recess 9, in connecting block 4 to recess 9 was worn out to syringe needle 5, the right-hand member screw thread fixed connection of interior needle cap 2 is equipped with refill frame 10, be equipped with refill 11 in the refill frame 10.

The outer needle cap 1, the inner needle cap 2 and the connecting block 4 of the embodiment are made of medical PVC materials, the left end of the outer needle cap 1 is not provided with an opening so that the needle head 5 can be cleaned and prevented from being polluted, the left end of the inner needle cap 2 is provided with a through hole, the needle head 5 can be used through the through hole, the outer needle cap 1 and the inner needle cap 2 are in interference fit, when the pen is used, the outer needle cap 1 and the inner needle cap 2 are fixedly connected with the pen core frame 10 as a whole, after the connection, the outer needle cap 1 can be pulled out, then the inner needle cap 2 or the pen core frame 10 is pushed, when the pen is pushed, as shown in a figure 9, the ball 8 originally located at the first peak of the special-shaped groove 7 enters the lowest end along the track of the special-shaped groove 7 under the compression of the circular guide groove 6, then the hand is loosened, the compressed first spring 3 returns at the moment, the ball 8 returns upwards under the action of the circular guide groove 6, and in the process of, The effect of the lower extreme staggered inclined plane down can only continue to get into the second peak after-fixing of profiled groove 7 right, and syringe needle 5 wears out fixedly promptly, and the back of finishing using, same mode, the first peak of getting into that ball 8 can be once more, syringe needle 5 contracts back, is convenient for take off and avoids being stabbed, and the motion mode is so reciprocal.

As shown in fig. 7 and 10, in order to facilitate replacement of the pen core 11 and to ensure that the pen core 11 is free from contamination, a sleeve 12 is fixedly connected to the pen core holder 10, a cap 13 is fixedly connected to a left end of the sleeve 12, and an operating assembly 14 is fixedly connected to a right end of the sleeve 12.

If the refill 11 in the refill holder 10 needs to be replaced, the operating assembly 14 can be unscrewed, the empty refill 11 can be taken out, after a new refill 11 is loaded into the refill holder 10, the operating assembly 14 is screwed on, and the operating assembly 14 is used for injecting insulin in the refill 11 into a human body and is usually pressed by using a screw rod; when the pen cap is used, the pen cap 13 is only required to be taken down, the needle head 5 is installed, the needle head 5 is taken down after use, and the pen cap 13 is screwed on.

In order to prevent the outer needle cap 1 from being lost and facilitate taking down the needle head 5, a first cavity 15 is arranged in the pen cap 13, a top head 16 capable of sliding left and right is arranged in the first cavity 15, a first guide groove 17 is arranged on the inner wall of the first cavity 15, a limiting strip 18 is fixedly connected to the outer needle cap 1, and the limiting strip 18 can be inserted into the first guide groove 17.

Usually, take off syringe needle 5 and all cover outer needle cap 1 and go up to take off on the inner needle cap 2 once more, safe laborsaving, but because outer needle cap 1 is too light little, lose very easily, lead to the inconvenient taking off of inner needle cap 2, so when installing inner needle cap 2, can fix outer needle cap 1 in cap for brush 1 now, after having installed inner needle cap 2, leave outer needle cap 1 in cap for brush 1, prevent to lose, after finishing using, cover outer needle cap 1 again and take off syringe needle 5 on inner needle cap 2, then through top 16 with outer needle cap 1 ejecting recovery box, it is safe, convenient.

Example two: in addition to the above embodiments, in order to move the plug 16 left and right, a pressing head 19 capable of sliding left and right is disposed on the left side of the cap 13, a pressing rod 20 is fixedly connected to the pressing head 19, a pressing block 21 is fixedly connected to the upper portion of the pressing rod 20, a second cavity 22 is disposed in the cap 13, a second spring 23 is disposed in the second cavity 22, the pressing block 21 is disposed at the left end of the second spring 23, the pressing rod 20 penetrates the second spring 23 and is fixedly connected to the plug 16, and the plug 16 is disposed at the right end of the pressing rod 20.

When the ejector 16 needs to be ejected out of the outer needle cap 1 rightwards, only the pressing head 19 needs to be pressed, and after the outer needle cap 1 is ejected out, the compressed second spring returns, so that the pressing head 19, the pressing rod 20, the pressing block 21 and the ejector 16 all return.

Example three: on the basis of the above embodiment, in order to realize the left-right sliding of the inner needle cap 2, the inner wall of the inner needle cap 2 is provided with the second guide groove 24, the connecting block 4 is fixedly connected with the guide block 25, and the guide block 25 can slide left and right in the second guide groove 24.

Example four: on the basis of the above embodiment, in order to ensure that the needle 5 is cleaned before use, a protective sheet is stuck on the groove 9.

The utility model discloses novel structure, the design is ingenious, and easy operation is practical, can prevent effectively that nurse personnel from being stabbed by the syringe needle, and swift effective, and safety and sanitation prevents to arouse cross infection, has improved work efficiency for medical personnel.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an insulin syringe needle that push type was dismantled, includes outer needle cap (1), its characterized in that: the needle cap (2) is arranged in the outer needle cap (1) in a detachable connection mode, a first spring (3) and a connecting block (4) capable of sliding left and right are arranged in the inner needle cap (2), the first spring (3) is arranged on the left side of the connecting block (4), a needle head (5) is fixed at the left end of the connecting block (4), the inner needle cap (2) can be penetrated out of the needle head (5), a circular guide groove (6) is arranged on the connecting block (4), a special-shaped groove (7) is arranged on the inner wall of the inner needle cap (2), a ball (8) is arranged in the circular guide groove (6), the ball (8) can roll in the special-shaped groove (7), a groove (9) is arranged at the right end of the connecting block (4), the needle head (5) penetrates out of the connecting block (4) to the groove (9), a pen core frame (10) is fixedly connected with the right end of the inner needle cap (, a refill (11) is arranged in the refill frame (10);

a sleeve (12) is fixedly connected to the refill holder (10), a pen cap (13) is fixedly connected to the left end of the sleeve (12), and an operating assembly (14) is fixedly connected to the right end of the sleeve (12);

be equipped with first cavity (15) in cap for brush (13), but be equipped with horizontal slip top (16) in first cavity (15), be equipped with first guide slot (17) on the inner wall of first cavity (15), fixedly connected with spacing (18) on outer needle cap (1), spacing (18) can insert in first guide slot (17).

2. The push-type detachable insulin injection needle as claimed in claim 1, wherein: the pen cap is characterized in that a pressing head (19) capable of sliding left and right is arranged on the left of the pen cap (13), a pressing rod (20) is fixedly connected onto the pressing head (19), a pressing block (21) is fixedly connected onto the pressing rod (20), a second cavity (22) is arranged in the pen cap (13), a second spring (23) is arranged in the second cavity (22), the pressing block (21) is arranged at the left end of the second spring (23), the pressing rod (20) penetrates through the second spring (23) and is fixedly connected with the top head (16), and the top head (16) is arranged at the right end of the pressing rod (20).

3. The push-type detachable insulin injection needle as claimed in claim 1, wherein: be equipped with second guide slot (24) on the inner wall of interior needle cap (2), fixedly connected with guide block (25) on connecting block (4), guide block (25) can be in second guide slot (24) the horizontal slip.

4. The push-type detachable insulin injection needle as claimed in claim 1, wherein: and a protective sheet is stuck on the groove (9).