A safety disinfecting insulin pen tip device

Abstract

The utility model discloses a safe disinfection type insulin pen point device, this device adds independent disinfection device at traditional insulin pen point interface, built -in disinfection cavity containing alcohol disinfection cotton piece, and cotton piece bottom round plastic convex is matched with insulin pen groove, realizes effective disinfection, and accords with clinical disinfection standard, simultaneously, insulin pen point is equipped with anti -puncture device, through one -way telescopic cover and rubber plug, after injection, the needle point is closed and is wrapped, avoids puncture. The use safety of patient and medical staff is guaranteed, the local infection risk of patient is reduced, and the safety and reliability of insulin treatment are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a safe and sterile insulin pen tip device for insulin injection, which is particularly suitable for disinfection and protection and needlestick injury prevention during insulin injection for diabetic patients. Background Technology

[0002] Diabetes mellitus, a common metabolic disease, is characterized by abnormally high blood sugar levels. This condition primarily stems from insufficient insulin secretion or impaired insulin function. Insulin therapy plays a crucial role in the comprehensive management of diabetes. With the rapid development of modern medical technology, insulin therapy methods are constantly being innovated and optimized. From improvements in insulin formulations to upgrades in injection equipment and technology, these changes have greatly helped patients control their blood sugar levels more precisely, effectively reducing the risk of various complications and significantly improving their quality of life and health.

[0003] However, several problems remain to be addressed in the actual practice of insulin therapy. Insulin pen tips, as a crucial instrument in the insulin injection process, pose significant safety risks during use. Due to their small size, sharp texture, complex operating environment, and frequent handling, medical personnel are highly susceptible to needlestick injuries when operating insulin pen tips. Once a needlestick injury occurs, medical personnel may come into contact with blood containing pathogens, potentially leading to infection with various blood-borne infectious diseases such as hepatitis B, hepatitis C, and HIV, posing a serious threat to their health.

[0004] Currently, common disinfection methods also have certain shortcomings. Clinically, bottled alcohol or alcohol wipes are often used to disinfect insulin pen tips. However, once opened, bottled alcohol's concentration gradually decreases over time due to its high volatility. When the concentration falls below the effective disinfection level, its disinfection ability significantly diminishes, failing to effectively kill bacteria, viruses, and other pathogens, greatly increasing the risk of infection. When using alcohol wipes, the complex structure of the insulin pen tip after assembly creates many hard-to-reach areas. This makes it difficult for alcohol wipes to completely and evenly cover all parts of the insulin pen tip, easily creating disinfection blind spots and leading to incomplete disinfection. Incomplete disinfection can leave pathogens on the insulin pen tip. During subsequent use, these residual pathogens may enter the body through the injection site, causing local infections. This not only affects treatment outcomes and prolongs recovery, but in severe cases, it can also lead to systemic infections, endangering the patient's life.

[0005] In summary, existing insulin therapy equipment and sterilization methods are clearly inadequate, and there is an urgent need for a new type of insulin pen tip device to solve the problems of needlestick injuries and incomplete sterilization, and to ensure the safety of medical staff and patients. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a safe and sterile insulin pen tip device.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A safe, sterilizable insulin pen tip device includes a sterilization chamber module and a safety protection module detachably connected to the insulin pen. The sterilization chamber module includes a cylinder with openings at both the top and bottom. Inside the cylinder, there is a circular sterilization component that is tightly attached to its inner wall. The bottom of the circular sterilization component has a circular positioning boss that forms a transition fit with the groove of the insulin pen interface.

[0009] The safety protection module includes an inner cylinder and an outer cylinder coaxially sleeved together. An upper limit groove and a lower limit groove are axially formed on the inner wall of the outer cylinder. A guide block matching the upper limit groove and the lower limit groove is provided on the outer wall of the inner cylinder. A stopper is provided at the bottom of the outer cylinder, and the stopper is interference-fitted with the insulin needle tip.

[0010] When the guide block is located in the upper limit groove, the needle tip is fully retracted into the stopper; when the guide block is located in the lower limit groove, the needle tip is exposed from the stopper.

[0011] Furthermore, the circular disinfection component is an alcohol disinfection pad with a thickness of 2-3 mm.

[0012] Furthermore, the circular positioning boss is a plastic boss.

[0013] Furthermore, both the upper limit groove and the lower limit groove are provided with a stop structure that acts on the guide block at their ends.

[0014] Furthermore, the inner wall of the inner cylinder is provided with a buffer layer that acts on the tip of the insulin pen.

[0015] Furthermore, both the inner cylinder and the outer cylinder are made of medical-grade plastic.

[0016] Furthermore, the outer wall of the outer cylinder is provided with anti-slip texture.

[0017] Furthermore, a protective film is provided at the top of the cylindrical cavity.

[0018] Compared with existing technologies, the advantages of this invention are as follows: By adding an independent disinfection device to the traditional insulin pen tip interface—namely, the transitional fit between the circular positioning boss and the insulin pen interface groove—the disinfection effect is effectively improved, avoiding local infection of patients due to incomplete disinfection, and making it more in line with clinical disinfection standards. Secondly, an anti-puncture device is added to the insulin pen tip. Through the cooperation of the upper and lower limit grooves and the guide block, as well as the interference fit between the stopper and the insulin needle tip, the retraction and exposure of the needle tip are controlled. When not in use, the needle tip can be completely protected to prevent needlestick injuries and ensure the safety of medical staff and patients. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Appendix Figure 1 This is a schematic diagram of the structure in use according to an embodiment of this application;

[0021] Appendix Figure 2 This is a schematic diagram of the structure in the unused state of an embodiment of this application;

[0022] Appendix Figure 3 This is a schematic diagram of the disinfection chamber module in an embodiment of this application;

[0023] Appendix Figure 4 This is a schematic diagram of the guide block located in the upper limit slot according to an embodiment of this application;

[0024] Appendix Figure 5 This is a schematic diagram of the guide block located in the lower limiting groove in an embodiment of this application.

[0025] Explanation of reference numerals and components in the accompanying drawings:

[0026] 1. Cylinder; 2. Circular sterilization component; 3. Circular positioning boss; 4. Protective film; 5. Inner cylinder; 6. Outer cylinder; 7. Upper limit groove; 8. Lower limit groove; 9. Guide block; 10. Plug. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described through specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] See appendix Figures 1-5 As shown, this application discloses a safe, sterilizable insulin pen tip device, comprising a sterilization chamber module and a safety protection module detachably connected to the insulin pen. The sterilization chamber module includes a cylinder 1 with openings at both the top and bottom. Inside the cylinder 1 is a circular sterilization element 2 tightly fitted to its inner wall. The circular sterilization element 2 is preferably made of alcohol-soaked cotton pads, with a thickness controlled between 2-3 mm. Extensive experimental verification has shown that this thickness allows the alcohol to fully saturate the cotton pad, ensuring sufficient sterilization capacity while preventing excessive alcohol dripping during use, which could affect the usage environment and sterilization effect. A circular positioning boss 3 protrudes outward from the center of the bottom surface of the circular sterilization element 2. This circular positioning boss 3 is a plastic boss, and its outer diameter can form a transitional fit with the groove at the insulin pen interface. This ensures a stable connection between the insulin pen tip and the sterilization chamber module, facilitating sterilization operations, and allows for easy separation after sterilization, preventing overly tight connections that are difficult to disassemble. During use, the insulin pen tip is accurately aligned with the sterilization chamber module, ensuring full contact between the insulin pen tip and the circular sterilization element 2. To achieve the desired disinfection effect, the insulin pen tip needs to remain in contact with the alcohol disinfectant wipe for at least 15 seconds, allowing the alcohol to effectively kill bacteria and viruses on the surface of the pen tip. After the disinfection time is up, the user simply needs to gently pry open the disinfection chamber module and discard the entire unit. The operation is simple and convenient, effectively avoiding the risk of cross-infection that may be associated with traditional disinfection methods.

[0029] To further enhance the hygienic performance of the disinfection chamber module, a protective film 4 is installed on the top of the cylindrical chamber 1. This protective film 4 is made of transparent, non-toxic medical-grade plastic film, which has good flexibility and sealing properties. When the disinfection chamber module is not in use, the protective film 4 can tightly cover the opening at the top of the cylinder 1, effectively preventing dust, debris and other external contaminants from entering the disinfection chamber, ensuring that the circular disinfection component 2 is always clean, thereby guaranteeing a reliable disinfection effect every time it is used.

[0030] The safety protection module includes an inner cylinder 5 and an outer cylinder 6 coaxially fitted together. An upper limit groove 7 and a lower limit groove 8 are axially formed on the inner wall of the outer cylinder 6. A guide block 9, matching the upper limit groove 7 and the lower limit groove 8, is provided on the outer wall of the inner cylinder 5. A stopper 10 is located at the bottom of the outer cylinder 6. The stopper 10 is made of medical-grade silicone, possessing excellent elasticity and flexibility. It uses an interference fit with the insulin needle tip, providing sufficient resistance without damaging the needle tip, ensuring the needle tip's stability within the stopper. When the guide block 9 is located in the upper limit groove 7, the insulin needle tip can be completely retracted into the stopper 10, forming a comprehensive protective enclosure. This effectively prevents needlestick injuries during transportation, storage, or other non-use periods. When the guide block 9 slides to the lower limit groove 8, the needle tip is exposed from the stopper 10, allowing the user to perform normal insulin injection. The entire switching process is simple, smooth, and effectively ensures user safety.

[0031] Preferably, both the upper limit groove 7 and the lower limit groove 8 have stop structures at their ends that act on the guide block 9. These stop structures prevent the guide block 9 from dislodging from the limit grooves, ensuring the stability and reliability of the safety protection module. Preferably, the inner wall of the inner cylinder 5 has a buffer layer that acts on the insulin pen tip. This buffer layer reduces vibration and impact during movement of the insulin pen tip, protecting it from damage. Preferably, both the inner cylinder 5 and the outer cylinder 6 are made of medical-grade plastic. Medical-grade plastic has good biocompatibility and mechanical properties, meeting the requirements for medical device use. Preferably, the outer wall of the outer cylinder 6 has anti-slip textures. These textures increase friction when held, facilitating operation.

[0032] Preferably, in this embodiment, the guide block 9 is integrally formed with the inner cylinder 5 and is made of medical-grade plastic to ensure that the guide block 9 slides smoothly and is accurately positioned within the limiting groove. At the same time, the surface of the guide block 9 is smoothed to reduce sliding resistance.

[0033] Preferably, in this embodiment, a silicone sealing gasket is also provided at the circular positioning boss 3 and the insulin pen interface to prevent alcohol leakage, avoid alcohol evaporation affecting the disinfection effect, and at the same time prevent dust and other impurities from entering the disinfection chamber module, ensuring the cleanliness of the disinfection environment.

[0034] The operational process for this application is as follows:

[0035] Connect the sterilization chamber module to the insulin pen, allowing the circular positioning boss 3 to embed into the insulin pen interface groove. Because the circular positioning boss 3 and the groove form a transition fit, the alcohol-soaked cotton pad fully contacts and rubs against the insulin pen tip, effectively sterilizing the tip. When insulin injection is needed, move the guide block 9 along the upper limit groove 7 on the inner wall of the outer cylinder 6 to the lower limit groove 8. At this point, the needle tip protrudes from the stopper 10, ready for injection. After injection, move the guide block 9 back to the upper limit groove 7, completely retracting the needle tip into the stopper 10 to prevent needlestick injury.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

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