Insulin needle anti-stabbing cover
By designing a puncture-proof cap for insulin needles, the problem of lack of protection for insulin needles after use is solved, improving safety and convenience, and ensuring the safety and accuracy of the injection process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 玉林市第一人民医院
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-26
Smart Images

Figure CN224404116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, specifically to an insulin needle anti-puncture cover. Background Technology
[0002] Insulin is a medication used to control blood sugar. Diabetic patients control their blood sugar by injecting insulin. An insulin pen is a common insulin injection device. Some diabetic patients buy insulin pens and use the matching insulin needles to inject themselves. It is convenient to use and the injection process is simple.
[0003] Existing insulin needles are usually directly attached to insulin pens. After use, the insulin needle can only be protected by the outer casing of the insulin pen. At the same time, the insulin needle itself does not have a special protective sleeve, which makes it easy to prick the user during installation.
[0004] Therefore, this utility model provides an insulin needle anti-puncture cover to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides an insulin needle anti-puncture cap, which solves the aforementioned problems.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an insulin needle anti-puncture cap, including an insulin pen, wherein an anti-puncture cap mechanism is provided at the bottom of the insulin pen, and an insulin needle is fixedly disposed inside the anti-puncture cap mechanism;
[0007] The anti-puncture cap mechanism includes an upper connecting part, a lower connecting part, and a limiting sleeve. The limiting sleeve has a sliding groove inside and a limiting groove outside the sliding groove.
[0008] The limiting sleeve is equipped with a protective positioning mechanism that slides inside. The protective positioning mechanism includes an anti-puncture sleeve that slides inside the limiting sleeve. A sliding button is fixedly connected to the outside of the anti-puncture sleeve. A limiting block is fixedly connected to the outside of the sliding button. The insulin needle is located inside the anti-puncture sleeve.
[0009] Preferably, the upper connecting part is provided with a threaded groove, the anti-puncture cap mechanism is connected to the insulin pen through the threaded groove on the upper connecting part, the upper connecting part and the lower connecting part are smoothly connected, and the lower connecting part is smoothly connected to the limiting sleeve.
[0010] Preferably, an anti-slip block is fixedly connected to the outer side of the lower connecting part, and a protective sleeve is provided on the outer side of the limiting sleeve, with the protective sleeve fitted onto the outer side of the lower connecting part.
[0011] Preferably, the limiting block is connected to the inner side of the limiting groove, the sliding button is slidably connected to the inside of the sliding groove, the outer side of the limiting sleeve is provided with a scale groove, the outer side of the sliding button is provided with a pointer groove, and the outer side of the sliding button is provided with an anti-slip groove.
[0012] Preferably, the bottom of the anti-puncture sheath has a placement groove, and a sterile cotton is fixedly installed inside the placement groove. The inner diameter of the sterile cotton is the same as the outer diameter of the insulin needle. The bottom of the anti-puncture sheath is provided with a positioning sleeve, and the outer diameter of the positioning sleeve is larger than the inner diameter of the limiting sleeve.
[0013] Beneficial effects
[0014] This invention provides a puncture-proof cap for insulin needles. Compared with the prior art, it has the following advantages:
[0015] Beneficial effects:
[0016] (1) The insulin needle anti-puncture cap is securely installed at the bottom of the insulin pen through the threaded groove of the upper connecting part. The protective sleeve on the outside of the limiting sleeve can prevent external objects from contacting the insulin needle when not in use, avoiding contamination and accidental puncture, greatly improving the safety of insulin injection and reducing the risk of users being punctured and infected.
[0017] (2) The insulin needle anti-puncture sleeve can slide inside the limiting sleeve. The cooperation of the sliding button and the limiting block can accurately adjust the exposed length of the insulin needle according to the user's needs. The limiting block's limiting design in the limiting groove ensures the stability of the anti-puncture sleeve position. With the scale groove on the outside of the limiting sleeve and the pointer groove on the sliding button, the injection depth can be accurately controlled. The sterile cotton at the bottom of the anti-puncture sleeve disinfects the injection site when the needle moves. The positioning sleeve prevents the needle from being inserted too deeply, ensuring the user's safety. After use, the anti-puncture sleeve can be reset to wrap around the needle, and the sterile cotton can be wiped and disinfected again, further improving safety and providing convenience and safety for insulin injection for diabetic patients. Attached Figure Description
[0018] Figure 1 This is an exploded view of the external structure of this utility model.
[0019] Figure 2 This is a schematic diagram showing the connection between the insulin pen and the anti-puncture cap mechanism of this utility model;
[0020] Figure 3 This is a schematic diagram showing the usage status of the insulin pen and the anti-puncture cap mechanism of this utility model.
[0021] Figure 4 This is a schematic diagram of the connection of the protective sleeve of this utility model;
[0022] Figure 5 This is a cross-sectional schematic diagram of the upper connecting part, lower connecting part, limiting sleeve and protective sleeve of this utility model;
[0023] Figure 6 This is the utility model Figure 5 Enlarged view of point A in the middle;
[0024] Figure 7 This is the utility model Figure 1 Enlarged view at point B in the middle;
[0025] Figure 8 This is the utility model Figure 5 Enlarged view of point C in the middle.
[0026] In the diagram: 1. Insulin pen; 2. Puncture-proof cap mechanism; 21. Upper connecting part; 22. Lower connecting part; 23. Limiting sleeve; 24. Protective sleeve; 25. Limiting groove; 26. Sliding groove; 3. Anti-slip block; 4. Protective positioning mechanism; 41. Puncture-proof sleeve; 42. Positioning sleeve; 43. Sterilizing cotton; 44. Sliding button; 45. Limiting block; 5. Insulin needle. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-8 An insulin needle anti-puncture cap includes an insulin pen 1, an anti-puncture cap mechanism 2 is provided at the bottom of the insulin pen 1, and an insulin needle 5 is fixedly provided inside the anti-puncture cap mechanism 2.
[0029] The anti-puncture cap mechanism 2 includes an upper connecting part 21, a lower connecting part 22 and a limiting sleeve 23. The limiting sleeve 23 has a sliding groove 26 inside and a limiting groove 25 outside the sliding groove 26.
[0030] The limiting sleeve 23 has a protective positioning mechanism 4 that slides inside. The protective positioning mechanism 4 includes an anti-puncture sleeve 41 that slides inside the limiting sleeve 23. A sliding button 44 is fixedly connected to the outside of the anti-puncture sleeve 41. A limiting block 45 is fixedly connected to the outside of the sliding button 44. The insulin needle 5 is located inside the anti-puncture sleeve 41. A threaded groove is provided on the upper connecting part 21. The anti-puncture cap mechanism 2 is connected to the insulin pen 1 through the threaded groove on the upper connecting part 21. The upper connecting part 21 and the lower connecting part 22 are smoothly connected. The lower connecting part 22 is smoothly connected to the limiting sleeve 23. An anti-slip block 3 is fixedly connected to the outside of the lower connecting part 22. A protective sleeve 24 is provided on the outer side of the limiting sleeve 23. The protective sleeve 24 is sleeved on the outer side of the lower connecting part 22. The limiting block 45 is limited and connected to the inner side of the limiting groove 25. The sliding button 44 is slidably connected to the inside of the sliding groove 26. A scale groove is opened on the outer side of the limiting sleeve 23. A pointer groove is opened on the outer side of the sliding button 44. An anti-slip groove is opened on the outer side of the sliding button 44. A placement groove is opened at the bottom of the anti-puncture sleeve 41. A sterile cotton 43 is fixedly installed inside the placement groove. The inner diameter of the sterile cotton 43 is the same as the outer diameter of the insulin needle 5. A positioning sleeve 42 is provided at the bottom of the anti-puncture sleeve 41. The outer diameter of the positioning sleeve 42 is larger than the inner diameter of the limiting sleeve 23.
[0031] It should be noted that the anti-puncture cap mechanism 2 is first connected to the insulin pen 1 by the threaded groove on the upper connecting part 21.
[0032] Then, remove the protective sleeve 24 from the outside of the limiting sleeve 23. Adjust the insertion depth of the insulin needle 5 according to the user's needs. Move the sliding button 44 to move the anti-puncture sleeve 41 to the designated position. After moving upwards, the anti-puncture sleeve 41 will be limited by the limiting block 45 inside the limiting groove 25. As long as the friction between the limiting block 45 and the limiting groove 25 is maintained, moving the sliding button 44 will move the anti-puncture sleeve 41, and after moving to the designated position, the anti-puncture sleeve 41 will be able to pass through the limiting block 45. The friction between the 5 and the limiting groove 25 limits the anti-puncture sleeve 41 to the designated position. When the anti-puncture sleeve 41 moves upward, the disinfectant cotton 43 inside it disinfects the position where the insulin needle 5 needs to be inserted into the skin. The scale groove on the outside of the limiting sleeve 23 and the pointer groove on the outside of the sliding button 44 cooperate with each other to determine the specific exposed length of the insulin needle 5, thereby ensuring the length of the insulin needle 5 inserted into the patient's skin. The positioning sleeve 42 can also minimize the risk of the user inserting the insulin needle 5 too deeply into the skin.
[0033] After use, move the limiting block 45 to reset the anti-puncture sleeve 41 so that the anti-puncture sleeve 41 completely covers the insulin needle 5. During this process, the disinfectant cotton 43 can also wipe and disinfect the insulin needle 5. Then, cover the outside of the limiting sleeve 23 with the protective sleeve 24 to prevent the insulin needle 5 from puncturing the user. When it needs to be replaced, simply rotate and unscrew the anti-puncture sleeve cover mechanism 2 from the insulin pen 1.
[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0035] Working principle: During operation, first connect the anti-puncture cap mechanism 2 to the insulin pen 1 via the threaded groove of the upper connecting part 21. Remove the protective cover 24, and move the sliding button 44 according to your own situation to move the anti-puncture cap 41 to the designated position. The limiting block 45 and the limiting groove 25 cooperate to limit the position. During this process, the disinfectant cotton 43 disinfects the injection site. The exposed length of the insulin needle 5 is determined by the scale groove and pointer groove. The positioning sleeve 42 prevents the needle from being inserted too deeply. After use, move the limiting block 45 to reset the anti-puncture cap 41 to wrap the needle. Wipe with disinfectant cotton 43 for disinfection, and then put the protective cover 24 back on. When it needs to be replaced, simply unscrew the anti-puncture cap mechanism 2.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An insulin pen needle stick cover comprising an insulin pen (1) characterized in that: The insulin pen (1) is provided with a puncture-proof cap mechanism (2) at the bottom, and an insulin needle (5) is fixedly installed inside the puncture-proof cap mechanism (2). The anti-puncture cap mechanism (2) includes an upper connecting part (21), a lower connecting part (22) and a limiting sleeve (23). The limiting sleeve (23) has a sliding groove (26) inside and a limiting groove (25) on the outside of the sliding groove (26). The limiting sleeve (23) is slidably provided with a protective positioning mechanism (4). The protective positioning mechanism (4) includes an anti-puncture sleeve (41) slidably connected inside the limiting sleeve (23). A sliding button (44) is fixedly connected to the outside of the anti-puncture sleeve (41). A limiting block (45) is fixedly connected to the outside of the sliding button (44). The insulin needle (5) is located inside the anti-puncture sleeve (41).
2. The insulin needle anti-puncture cap according to claim 1, characterized in that: The upper connecting part (21) is provided with a threaded groove. The anti-puncture cap mechanism (2) is connected to the insulin pen (1) through the threaded groove on the upper connecting part (21). The upper connecting part (21) and the lower connecting part (22) are smoothly connected. The lower connecting part (22) is smoothly connected to the limiting sleeve (23).
3. The insulin needle anti-puncture cover according to claim 1, characterized in that: An anti-slip block (3) is fixedly connected to the outside of the lower connecting part (22), and a protective sleeve (24) is provided on the outside of the limiting sleeve (23). The protective sleeve (24) is sleeved on the outside of the lower connecting part (22).
4. The insulin needle anti-puncture cover according to claim 1, characterized in that: The limiting block (45) is limited and connected to the inside of the limiting groove (25), the sliding button (44) is slidably connected to the inside of the sliding groove (26), the limiting sleeve (23) has a scale groove on the outside, the sliding button (44) has a pointer groove on the outside, and the sliding button (44) has an anti-slip groove on the outside.
5. The insulin needle anti-puncture cover according to claim 1, characterized in that: The bottom of the anti-stab sleeve (41) is provided with a placement groove, and a sterile cotton (43) is fixedly installed inside the placement groove. The inner diameter of the sterile cotton (43) is the same as the outer diameter of the insulin needle (5). The bottom of the anti-stab sleeve (41) is provided with a positioning sleeve (42), and the outer diameter of the positioning sleeve (42) is larger than the inner diameter of the limiting sleeve (23).