Anti-stabbing structure for insulin injection pen
By designing a needle sheath structure to prevent punctures, the problems of infection and punctures caused by exposure of insulin needles during use are solved, achieving automatic protection of the needle and improving safety.
Patent Information
- Application Number
- CN202423092882.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing insulin needles are easily exposed to the external environment during use and lack protective structures, leading to potential risks of infection and needle stick injuries.
A puncture-proof structure was designed, comprising an injection tube body, an anti-puncture needle, a needle sheath, a spring, and a control structure. The automatic protection of the needle is achieved through the extension and retraction of the sheath and the protective groove, preventing the needle from being exposed and infected.
It effectively prevents medical personnel from being pricked during disassembly, protects the needle, avoids contamination, and is simple to operate and inexpensive.
Smart Images
Figure CN223914496U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to insulin injection pen technical field, especially insulin injection pen is with anti -stabbing structure. BACKGROUND
[0002] Insulin is by the islet beta cell of pancreas endogenous or exogenous material such as glucose, lactose, ribose, arginine, glucagon etc. the stimulation and secretes a kind of protein hormone. Insulin is the only hormone in the body to reduce blood sugar, also promotes glycogen, fat, protein synthesis, exogenous insulin is mainly used to treat diabetes.
[0003] The existing insulin needle is usually manually taken, installed or disassembled during the specific injection process. If the insulin injection needle is contaminated with infectious bacteria, the user's hand will be infected by the needle. At the same time, the existing insulin needle is exposed to the external environment without a specific protection structure to protect it. The injection needle is easy to contaminate bacteria, which affects the injection of insulin. Therefore, it is necessary to design an insulin injection pen anti-stabbing structure. UTILITY MODEL CONTENT
[0004] The utility model solves the technical problem that the existing insulin needle is exposed to the external environment without a specific protection structure to protect it, and provides an insulin injection pen anti-stabbing structure.
[0005] To solve the above technical problem, the technical scheme of the utility model is as follows:
[0006] An insulin injection pen anti-stabbing structure includes an injection tube body, and a stab-proof needle head connected to one end of the injection tube body.
[0007] The stab-proof needle head includes a needle head, a fastener, a first needle head sleeve, a second needle head sleeve, a set of first springs and a control structure.
[0008] The needle head is arranged on the fastener, the fastener is connected to the injection tube body, the first needle head sleeve is fixedly connected to the fastener, at least part of the second needle head sleeve is sleeved on the first needle head sleeve, the set of first springs is arranged between the first needle head sleeve and the second needle head sleeve, and the control structure is arranged on the first needle head sleeve and the second needle head sleeve to control the length of the second needle head sleeve.
[0009] Preferably, the control structure includes a plurality of counterbores, at least one movable connecting plate, a pressing handle, a second spring and at least one protruding clamping point.
[0010] The counterbore is arranged on the second needle sleeve, the movable connecting plate is arranged on the first needle sleeve, the protruding clamping point is arranged on one end of the movable connecting plate, the protruding clamping point is matched with the counterbore, the pressing handle is arranged on the other end of the movable connecting plate, and the second spring is arranged on the movable connecting plate and is installed close to the pressing handle.
[0011] Preferably, the first needle sleeve is provided with a scale line.
[0012] Preferably, the length measured by the scale line is 2-8mm.
[0013] Preferably, the needle outlet of the second needle sleeve is in the shape of a circular truncated cone.
[0014] Preferably, the needle outlet of the second needle sleeve is provided with a rubber protective layer.
[0015] Preferably, the second needle sleeve is provided with a protective clamping groove for preventing the second needle sleeve from falling off.
[0016] Preferably, the inner side surface of the movable connecting plate has a strip-shaped groove, and the protective clamping groove is arranged in the strip-shaped groove during work.
[0017] The utility model has the following beneficial effects:
[0018] The device is simple to operate, low in cost and novel in structure, can avoid the medical staff from being pricked during disassembly, is convenient to disassemble, and can quickly return the second needle sleeve to the original position after use to protect the needle and prevent the needle from being damaged or infected. BRIEF DESCRIPTION OF DRAWINGS
[0019] The utility model will be further explained in detail in combination with the drawings and specific embodiments.
[0020] Figure 1 It is a structure schematic view of the anti-puncture structure of the insulin injection pen.
[0021] Figure 2 It is a structure schematic view of the first needle sleeve.
[0022] Figure 3 It is a structure schematic view of the anti-puncture needle in a working state.
[0023] Figure 4 It is a structure schematic view of the anti-puncture needle Figure Two .
[0024] The reference signs in the drawings represent:
[0025] 1, injection tube body; 2, anti-stab needle; 201, needle; 202, fastener; 203, first needle sleeve; 204, second needle sleeve; 205, first spring; 206, counterbore; 207, movable connecting plate; 208, pressing handle; 209, second spring; 210, protruding clamping point; 3, scale; 4, rubber protective layer; 5, protective clamping groove. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] Please refer to Figures 1-4 An anti-stab structure for an insulin injection pen, comprising an injection tube body 1, one end of the injection tube body 1 being connected with an anti-stab needle 2;
[0028] The use method is as follows: firstly, during work, the anti-stab needle 2 can be installed with the injection tube body 1, the anti-stab needle 2 can be provided with a needle cap, during injection, the needle cap is removed, the length of the needle 201 required for injection is adjusted through the counterbore 206 on the second needle sleeve 204, the length can be directly observed through the scale 3, the length is adjusted to 2-8 mm, so as to be used by people with different weights, the second needle sleeve 204 is manually adjusted, which is mainly safe, when there is no adjusting device, the second needle sleeve 204 can be moved by knocking everywhere, the needle 201 can be damaged or the needle 201 can be contaminated, when registration is completed, the pressing handle 208 on the movable connecting plate 207 is pressed, the protruding clamping point 210 is separated from the counterbore 206, the second needle sleeve 204 is pushed by the first spring 205 through the reaction, so that the second needle sleeve 204 is quickly returned to the original position, the needle 201 is protected, or the needle 201 is exposed and dangerous, the protective clamping groove 5 can prevent the second needle sleeve 204 from falling off when the second needle sleeve 204 is returned to the original position.
[0029] The anti-stab needle 2 comprises a needle 201, a fastener 202, a first needle sleeve 203, a second needle sleeve 204, a group of first springs 205 and a control structure;
[0030] The needle 201 is arranged on the fastener 202 which is connected with the injection tube body 1, the first needle sleeve 203 is fixedly connected with the fastener 202, at least part of the second needle sleeve 204 is sleeved on the first needle sleeve 203, a group of first springs 205 are arranged between the first needle sleeve 203 and the second needle sleeve 204, and the control structure is arranged on the first needle sleeve 203 and the second needle sleeve 204 and used for controlling the length of the second needle sleeve 204.
[0031] The control structure comprises a plurality of counterbores 206, at least one movable connecting plate 207, a pressing handle 208, a second spring 209 and at least one protruding clamping point 210.
[0032] The counterbores 206 are arranged on the second needle sleeve 204, the movable connecting plate 207 is arranged on the first needle sleeve 203, the protruding clamping point 210 is arranged at one end of the movable connecting plate 207 and matched with the counterbores 206, the pressing handle 208 is arranged at the other end of the movable connecting plate 207, and the second spring 209 is arranged on the movable connecting plate 207 and located close to the pressing handle 208.
[0033] The first needle sleeve 203 is provided with a scale line 3.
[0034] The length measured by the scale line 3 is 2-8mm.
[0035] The needle outlet of the second needle sleeve 204 is in the shape of a circular truncated cone.
[0036] The needle outlet of the second needle sleeve 204 is provided with a rubber protective layer 4.
[0037] The second needle sleeve 204 is provided with a protective clamping groove 5 for preventing the second needle sleeve 204 from falling off.
[0038] The inner side surface of the movable connecting plate 207 has a strip-shaped groove 6, and the protective clamping groove 5 is arranged in the strip-shaped groove during work.
[0039] Obviously, the above embodiment is only an example for clearly illustrating but not limiting the implementation. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the implementation is not required or can not be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.
Claims
1. A structure for preventing a needle stick injury for an insulin injection pen, characterized by, The injection tube body (1) is connected with a puncture-proof needle (2) at one end thereof; The puncture-proof needle (2) comprises a needle (201), a fastener (202), a first needle sleeve (203), a second needle sleeve (204), a set of first springs (205) and a control structure; The needle (201) is arranged on the fastener (202) connected with the injection tube body (1), the first needle sleeve (203) is fixedly connected with the fastener (202), at least part of the second needle sleeve (204) is sleeved on the first needle sleeve (203), the set of first springs (205) are arranged between the first needle sleeve (203) and the second needle sleeve (204), and the control structure is arranged on the first needle sleeve (203) and the second needle sleeve (204) and used for controlling the length of the second needle sleeve (204) in extension and retraction.
2. The anti-sticking structure for an insulin injection pen according to claim 1, characterized in that, The control structure comprises a plurality of counterbores (206), at least one movable connecting plate (207), a pressing handle (208), a second spring (209) and at least one protruding clamping point (210); The counterbores (206) are arranged on the second needle sleeve (204), the movable connecting plate (207) is arranged on the first needle sleeve (203), the protruding clamping point (210) is arranged at one end of the movable connecting plate (207), the protruding clamping point (210) is matched with the counterbores (206), the pressing handle (208) is arranged at the other end of the movable connecting plate (207), and the second spring (209) is arranged on the movable connecting plate (207) and located close to the pressing handle (208).
3. The anti-sticking structure for an insulin injection pen according to claim 2, characterized in that, The first needle sleeve (203) is provided with a scale line (3).
4. The anti-sticking structure for an insulin injection pen according to claim 3, characterized in that, The length measured by the scale line (3) is 2-8 mm.
5. The anti-stick structure for an insulin injection pen according to claim 1, wherein The needle outlet of the second needle sleeve (204) is in a circular truncated cone shape.
6. The anti-stick structure for an insulin injection pen according to claim 5, wherein The needle outlet of the second needle sleeve (204) is provided with a rubber protective layer (4).
7. The anti-sticking structure for an insulin injection pen according to claim 2, wherein The second needle sleeve (204) is provided with a protective clamping groove (5) for preventing the second needle sleeve (204) from falling off.
8. The anti-stick structure for an insulin injection pen according to claim 7, wherein The inner side surface of the movable connecting plate (207) has a strip-shaped groove (6), and the protective clamping groove (5) is arranged in the strip-shaped groove during operation.