CN221309114U - Insulin pen - Google Patents
Insulin pen Download PDFInfo
- Publication number
- CN221309114U CN221309114U CN202322644729.XU CN202322644729U CN221309114U CN 221309114 U CN221309114 U CN 221309114U CN 202322644729 U CN202322644729 U CN 202322644729U CN 221309114 U CN221309114 U CN 221309114U
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- CN
- China
- Prior art keywords
- needle
- sleeve
- guide
- liquid outlet
- needle sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229940127560 insulin pen Drugs 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000002347 injection Methods 0.000 claims abstract description 24
- 239000007924 injection Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 16
- 102000004877 Insulin Human genes 0.000 description 8
- 108090001061 Insulin Proteins 0.000 description 8
- 229940125396 insulin Drugs 0.000 description 8
- 208000015181 infectious disease Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses an insulin pen, which comprises an injection pushing cylinder, wherein a liquid outlet end of the injection pushing cylinder is provided with a needle head, and a needle sleeve is arranged on the needle head; the needle head comprises a needle bolt and a needle stem, connecting grooves are formed in the side walls of the liquid inlet side and the liquid outlet side of the needle bolt, and a guide telescopic sleeve sleeved on the needle stem is arranged in the connecting groove of the liquid outlet side of the needle bolt; the needle sleeve comprises an outer needle sleeve and an inner needle sleeve, the inner needle sleeve is detachably arranged on the inner bottom wall of the outer needle sleeve, and the outer needle sleeve is detachably arranged in a connecting groove on the liquid outlet side of the pintle. According to the utility model, two connecting grooves with the same specification are arranged on the pintle, so that the detachable and separable outer needle sleeve can be selectively installed according to the use condition, is installed on the liquid inlet side of the pintle after use, is matched with the inner needle sleeve and the guide telescopic sleeve for installation, and can seal both ends of the needle head, so that the safety of the needle head is ensured when the needle head is abandoned.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to an insulin pen.
Background
The insulin pen is a portable injector, can avoid the troublesome process of extracting insulin from an insulin medicine bottle by using the injector by a patient, and can enable the patient to inject in an unlimited occasion.
Insulin pens usually consist of a pen rack, a pen core, a piston mechanical device, a needle head and a needle sleeve, wherein a patient places the pen core filled with insulin in the pen rack, places the pen rack in the piston mechanical device, connects the needle head with the pen core and the pen rack, and can perform injection operation by pulling out the needle sleeve. Wherein, refill, syringe needle and needle cover are disposable articles for use, all need to throw away after the injection is accomplished, refill and needle cover do not contact with the internal tissue of patient, can directly throw away in the medical waste dustbin of categorised dustbin, and the syringe needle pierces the patient in, and the direct throw-away makes the syringe needle stab the refuse disposal personnel cause the infection easily.
Therefore, in order to avoid the injury caused by direct discarding of the needle, the needle cover is usually arranged on the needle to discard, so that the needle cover covers the needle, and the injury caused by needling is reduced. However, the needle is of a through-connection structure, and the needle also pierces the skin of a patient, so that after the needle is pulled out, the liquid of the patient is easy to remain in the needle tube, and blood which is not misoperation occurs, and the needle has a certain infection risk, especially for patients with other infectious diseases, and the needle needs to be safely treated after insulin injection is completed. The existing needle is only discarded through the needle tip sealing of the needle head, the other end cannot be sealed, the infection risk is easy to occur, and the safety is low.
In summary, the discarded needle cannot be sealed and protected from both sides after the existing insulin pen is used, and the infection risk is easy to occur.
Disclosure of utility model
The utility model aims to provide an insulin pen, which solves the technical problem that a needle cannot be discarded from double-side sealing protection after insulin injection in the prior art is completed.
In order to solve the technical problems, the utility model specifically provides the following technical scheme:
an insulin pen comprises an injection pushing cylinder, wherein a liquid outlet end of the injection pushing cylinder is provided with a needle head, and a needle sleeve is arranged on the needle head;
The needle head comprises a needle bolt and a needle stem, connecting grooves are formed in the side walls of the liquid inlet side and the liquid outlet side of the needle bolt, and a guide telescopic sleeve sleeved on the needle stem is arranged in the connecting groove of the liquid outlet side of the needle bolt;
The needle sleeve comprises an outer needle sleeve and an inner needle sleeve, the inner needle sleeve is detachably arranged on the inner bottom wall of the outer needle sleeve, the outer needle sleeve is detachably arranged in a connecting groove on the liquid outlet side of the needle plug, and the inner needle sleeve is detachably arranged on the guide telescopic sleeve;
After the outer needle sleeve and the inner needle sleeve are separated, the outer needle sleeve can be installed in a connecting groove of the pintle close to the liquid inlet side so as to be matched with the inner needle sleeve to cover the guide telescopic sleeve, and the needle head is sealed together.
As a preferable scheme of the utility model, the guiding telescopic sleeve comprises a fixed sleeve and a guiding sleeve, wherein the guiding sleeve is inserted into the end part of the fixed sleeve in a sliding way, and a reset spring which is abutted against the end part of the guiding sleeve is arranged in the fixed sleeve;
the inner needle sleeve is arranged at the outer side end part of the guide sleeve.
As a preferable scheme of the utility model, a convex seat is formed in the connecting groove at the liquid outlet side of the pintle, the needle stem penetrates through the convex seat, and the guide sleeve is sleeved on the convex seat in a sliding way;
After the inner needle sleeve is mounted at the outer end of the guide sleeve, the inner needle sleeve abuts against the liquid outlet side end wall of the boss.
As a preferable mode of the utility model, a sealing groove is arranged on the liquid outlet side end wall of the convex seat, and the end part of the inner needle sleeve is arranged in the sealing groove so that the inner needle sleeve is sleeved on the liquid outlet end of the needle stem and sealed.
As a preferable mode of the utility model, the inner needle sleeve is in threaded connection with the guide sleeve, and the inner needle sleeve is in plug connection with the outer needle sleeve.
As a preferable scheme of the utility model, the outer needle sleeve is sleeved on the fixed sleeve in a sliding way, and the outer needle sleeve is connected with the connecting groove in a threaded way.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, two connecting grooves with the same specification are arranged on the pintle, so that the detachable and separable outer needle sleeve can be selectively installed according to the use condition, is installed on the liquid inlet side of the pintle after use, is matched with the inner needle sleeve and the guide telescopic sleeve for installation, and can seal both ends of the needle head, so that the safety of the needle head is ensured when the needle head is abandoned.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a schematic diagram of an insulin pen according to an embodiment of the present utility model;
fig. 2 is a schematic view of the structure of a needle head and a needle cover of an insulin pen according to an embodiment of the utility model.
Reference numerals in the drawings are respectively as follows:
1-an injection pushing cylinder; 2-a needle; 3-a needle sleeve; 4-guiding the telescopic sleeve;
21-a pintle; 22-needle peduncles; 31-an outer needle sheath; 32-an inner needle sheath; 41-fixing sleeve; 42-a guide sleeve; 43-return spring;
211-connecting grooves; 212-a boss; 213-seal groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the utility model provides an insulin pen, which comprises an injection pushing cylinder 1, wherein a needle head 2 is arranged at the liquid outlet end of the injection pushing cylinder 1, and a needle sleeve 3 is arranged on the needle head 2;
The needle head 2 comprises a needle bolt 21 and a needle stem 22, the side walls of the liquid inlet side and the liquid outlet side of the needle bolt 21 are respectively provided with a connecting groove 211, and a guide telescopic sleeve 4 sleeved on the needle stem 22 is arranged in the connecting groove 211 of the liquid outlet side of the needle bolt 21;
The needle sleeve 3 comprises an outer needle sleeve 31 and an inner needle sleeve 32, the inner needle sleeve 32 is detachably arranged on the inner bottom wall of the outer needle sleeve 31, the outer needle sleeve 31 is detachably arranged in the connecting groove 211 on the liquid outlet side of the needle bolt 21, and the inner needle sleeve 32 is detachably arranged on the guiding telescopic sleeve 4;
After the outer needle sheath 31 and the inner needle sheath 32 are separated, the outer needle sheath 31 can be installed in the connecting groove 211 of the pintle 21 near the liquid inlet side so as to be matched with the inner needle sheath 32 to cover the guiding telescopic sheath 4 to jointly seal the needle head 2.
The insulin pen of this embodiment mainly utilizes the removable structure of outer needle cover 31 and inner needle cover 32, make the syringe needle 2 connect with injection pushing tube 1 or syringe needle 2 and needle cover 3 while sterilizing and packing, outer needle cover 31 and inner needle cover 32 are all installed in the liquid outlet side of syringe needle 2, thus avoid syringe needle 2 to contact with outside; after the use, the outer needle sleeve 31 and the inner needle sleeve 32 are separated, the outer needle sleeve 31 is arranged in the connecting groove 211 on the liquid inlet side of the needle plug 21, and the inner needle sleeve 32 is arranged at the end part of the guiding telescopic sleeve 4 so as to seal the needle head 2, thereby avoiding the injury of the needle point or the exposure of infection risk.
Compared with the existing insulin pen, the insulin pen of the embodiment can completely seal the needle head 2 after being used, thereby avoiding the condition that the needle head 2 is exposed to hurt people, avoiding the risk of exposing and infecting the needle head 2, and being safer during discarding.
Wherein, the guiding telescopic sleeve 4 can be propped against the skin through the front end of the guiding telescopic sleeve before injection, thereby avoiding misoperation injury caused by adopting the tip positioning of the needle stalk 22. A preferred embodiment of the guide telescopic sleeve 4 is provided below.
As shown in fig. 1, the guide telescopic sleeve 4 comprises a fixed sleeve 41 and a guide sleeve 42, the guide sleeve 42 is slidably inserted into the end of the fixed sleeve 41, and a return spring 43 abutting against the end of the guide sleeve 42 is arranged inside the fixed sleeve 41;
The inner needle sheath 32 is mounted to the outboard end of the guide sheath 42.
Specifically, before confirming the injection position, the guide sleeve 42 may be brought into contact with the skin, after confirming the injection position, the housing of the injection pushing cylinder 1 is pressed down so that the guide telescopic sleeve 4 is pressed against the skin, the guide sleeve 42 moves toward the inside of the fixing sleeve 41 and compresses the return spring 43, the tip of the needle stalk 22 is gradually exposed and penetrates into the injection position, and then the push rod of the injection pushing cylinder 1 is pushed to inject insulin into the body.
The injection pushing cylinder 1 consists of a pen core, a pen core frame and a piston mechanical device, wherein the needle head 2 is arranged on the pen core frame and connected with the pen core, and insulin is arranged in the pen core and pushed by the piston mechanical device to be injected into a human body from the needle head 2. The injection pushing cylinder 1 formed by the pen core, the pen core frame and the piston mechanical device is the prior art.
As shown in fig. 2, a boss 212 is formed in the connecting groove 211 on the liquid outlet side of the pintle 21, the needle stem 22 penetrates through the boss 212, and the guide sleeve 42 is slidably sleeved on the boss 212;
After the inner needle sheath 32 is mounted on the outer end of the guide sheath 42, the inner needle sheath 32 abuts against the liquid-side end wall of the boss 212.
The boss 212 is coaxially arranged with the connecting groove 211 and the guiding telescopic sleeve 4, and the guiding sleeve 42 is matched with the inner needle sleeve 32 to stably sleeve the needle stem 22 and seal the needle stem 22. Wherein, the guide sleeve 42 is sleeved on the boss 212 to slide, so that the stability of the axial movement of the guide sleeve can be improved.
In addition to the above-described embodiment, as shown in fig. 2, a sealing groove 213 is provided in the liquid-outlet side end wall of the boss 212, and the end of the inner needle sheath 32 is fitted into the sealing groove 213 so that the inner needle sheath 32 is fitted over the liquid-outlet end of the needle stem 22 and sealed.
The inner needle sleeve 32 abuts against the sealing groove 213 of the boss 212, so that the sealing capability of the inner needle sleeve 32 to the needle stem 22 is improved, and the needle stem 22 is further prevented from being polluted.
In order to avoid that the guide sleeve 42 is still movable after the inner needle sleeve 32 is mounted with the guide sleeve 42, a preferred embodiment is provided.
As shown in fig. 1 and 2, the inner needle sheath 32 is in threaded connection with the guide sheath 42, and the inner needle sheath 32 is in pluggable connection with the outer needle sheath 31.
The inner needle sleeve 32 is in threaded connection with the guide sleeve 42, after the inner needle sleeve 32 is mounted at the end part of the guide sleeve 42, the inner needle sleeve 32 is propped against the boss 212, and the guide sleeve 42 cannot slide on the inner needle sleeve 32 any more, so that the needle peduncles 22 are not easy to expose in the discarding process, and the condition that the needle stabs people is not easy to occur.
The inner needle sleeve 32 and the outer needle sleeve 31 are connected by plugging and unplugging, so that the inner needle sleeve 32 and the outer needle sleeve 31 can be conveniently disassembled and assembled.
Further, as shown in fig. 1 and 2, the outer needle sheath 31 is slidably fitted over the fixing sheath 41, and the outer needle sheath 31 is screw-coupled with the coupling groove 211.
The outer needle sleeve 31 is installed in the connecting groove 211 by adopting threaded connection, so that the outer needle sleeve 31 injection pushing cylinder 1 or the two connecting grooves 211 are connected more firmly, and the outer needle sleeve 31 is not easy to fall off after being connected with the connecting groove 211 of the liquid inlet groove, thereby avoiding the risk of exposing and infecting the needle head 2.
It should be noted that: the guide telescopic sleeve 4 is added in the connecting groove 211 on the liquid outlet side of the pintle 21, so that the positioning injection of a patient can be facilitated, the inner needle sleeve 32 can be installed and fixed, the liquid outlet end of the needle head 2 is firmly sealed, and the waste safety is improved.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and are intended to be within the spirit and scope of the application.
Claims (6)
1. An insulin pen is characterized by comprising an injection pushing cylinder (1), wherein a needle head (2) is arranged at the liquid outlet end of the injection pushing cylinder (1), and a needle sleeve (3) is arranged on the needle head (2);
The needle head (2) comprises a needle bolt (21) and a needle stem (22), connecting grooves (211) are formed in the side walls of the liquid inlet side and the liquid outlet side of the needle bolt (21), and a guide telescopic sleeve (4) sleeved on the needle stem (22) is arranged in the connecting groove (211) of the liquid outlet side of the needle bolt (21);
The needle sleeve (3) comprises an outer needle sleeve (31) and an inner needle sleeve (32), the inner needle sleeve (32) is detachably arranged on the inner bottom wall of the outer needle sleeve (31), the outer needle sleeve (31) is detachably arranged in a connecting groove (211) on the liquid outlet side of the needle bolt (21), and the inner needle sleeve (32) is detachably arranged on the guide telescopic sleeve (4);
After the outer needle sleeve (31) and the inner needle sleeve (32) are separated, the outer needle sleeve (31) can be installed in a connecting groove (211) of the needle plug (21) close to the liquid inlet side so as to be matched with the inner needle sleeve (32) to cover the guide telescopic sleeve (4), and the needle head (2) is sealed together.
2. An insulin pen according to claim 1, characterized in that,
The guide telescopic sleeve (4) comprises a fixed sleeve (41) and a guide sleeve (42), the guide sleeve (42) is slidably inserted into the end part of the fixed sleeve (41), and a reset spring (43) which abuts against the end part of the guide sleeve (42) is arranged in the fixed sleeve (41);
the inner needle sheath (32) is mounted at the outer end of the guide sheath (42).
3. An insulin pen according to claim 2, characterized in that,
A convex seat (212) is formed in the connecting groove (211) at the liquid outlet side of the pintle (21), the needle stem (22) penetrates through the convex seat (212), and the guide sleeve (42) is sleeved on the convex seat (212) in a sliding way;
After the inner needle sleeve (32) is mounted on the outer end of the guide sleeve (42), the inner needle sleeve (32) abuts against the liquid-outlet side end wall of the boss (212).
4. An insulin pen according to claim 3, characterized in that,
A sealing groove (213) is arranged on the liquid outlet side end wall of the boss (212), and the end part of the inner needle sleeve (32) is arranged in the sealing groove (213) so that the inner needle sleeve (32) is sleeved on the liquid outlet end of the needle stem (22) and sealed.
5. An insulin pen according to claim 3 or 4, characterized in that,
The inner needle sleeve (32) is in threaded connection with the guide sleeve (42), and the inner needle sleeve (32) is in plug connection with the outer needle sleeve (31).
6. An insulin pen according to claim 5, characterized in that,
The outer needle sleeve (31) is sleeved on the fixed sleeve (41) in a sliding mode, and the outer needle sleeve (31) is connected with the connecting groove (211) through threads.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221309114U true CN221309114U (en) | 2024-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |