Two-way guard safety insulin pen needle

Abstract

This utility model belongs to the field of insulin pen needles, specifically a bidirectional protective safety insulin pen needle, including an insulin pen needle body, and the surface of the docking part is provided with a protective structure. In this utility model, the docking part mainly serves to connect with the protective structure, and the protective cylinder serves to provide support and connection. The protective cylinder can be sleeved on the surface of the docking part, so that the puller can be disassembled and installed from the inner wall of the protective cylinder. While the protective cylinder is connected to the docking part, the covering hole is sleeved on the outside of the sealing tube. The fixing ring on the inner wall of the covering hole forms a snap-fit ​​with the sealing tube. The anti-slip groove on the inner wall of the fixing ring can improve the firmness of the snap-fit ​​between the fixing ring and the sealing tube. Thus, when the puller is pulled out from the inner wall of the protective cylinder, the puller will also pull out the sealing tube on the surface of the needle tube. The protective cylinder can cover the exposed needle tube in a shorter time, reducing the area and time of contact between the needle tube and the outside air.

Description

Technical Field

[0001] This utility model relates to the field of insulin pen needles, specifically a bidirectional protective safety insulin pen needle. Background Technology

[0002] An insulin pen is an injection device designed specifically for diabetic patients. Shaped like a pen, it is easy to carry. It stores insulin through a cartridge, and injection can be done simply by removing the cap. This eliminates the cumbersome process of drawing insulin from an insulin vial with a syringe, and avoids the embarrassment of injecting insulin in public. It also provides convenience for patients with poor vision or even blindness.

[0003] Replacing insulin pen needles is an important part of daily routines for diabetic patients. Correct replacement methods can ensure injection safety, reduce the risk of infection, and ensure accurate insulin dosage. The replacement needle has a sealed tube connected to it to isolate it from the outside air. However, most traditional insulin pen needles do not have this feature, so after removing the sealed tube, the needle is completely exposed to the air. Bacteria, dust, and other contaminants in the air may enter the cartridge, leading to medication deterioration or an increased risk of infection. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, most traditional insulin pen needles do not have a proper seal, leaving the syringe completely exposed to the air after the needle is replaced and the seal removed. This allows airborne bacteria, dust, and other contaminants to enter the cartridge, potentially leading to medication deterioration or an increased risk of infection. This invention proposes a bidirectional protective insulin pen needle.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a two-way protective safety insulin pen needle, including an insulin pen needle body, an adjustment handle is movably provided at one end of the insulin pen needle body, a docking part is fixedly connected to the surface of the insulin pen needle body, and a protective structure is provided on the surface of the docking part.

[0006] The protective structure includes a protective cylinder, the inner wall of which is fitted onto the surface of the mating part. A puller is inserted into the inner wall of the protective cylinder, and a protective rubber is fixedly connected to the surface of the puller. A pull ring is fixedly connected to one side of the puller, and a covering hole is opened on the other side of the puller. A fixing ring is fixedly connected to the inner wall of the covering hole, and an anti-slip groove is opened on the inner wall of the fixing ring.

[0007] Preferably, the inner wall of the protective cylinder is fixedly connected with a connecting block, the connecting block being T-shaped, and there are multiple connecting blocks.

[0008] Preferably, one side of the docking member is provided with a connecting groove, and there are multiple connecting grooves. The surface of the connecting block is slidably connected to the corresponding connecting groove.

[0009] Preferably, the other end of the insulin pen needle body is provided with a connecting end, and the surface of the connecting end is provided with an injection element.

[0010] Preferably, the injection component includes a connecting cap, the inner wall of which is threaded to the surface of the connecting end, and a needle tube is fixedly connected to the inner cavity of the connecting cap, with the surface of the needle tube sleeved on a sealing tube.

[0011] Preferably, the sealing tube is disposed in the inner cavity of the covering hole, and the inner wall of the fixing ring is engaged with the surface of the sealing tube.

[0012] Preferably, a stabilizing plate is fixedly connected to the surface of the protective cylinder, and an anti-slip pad is fixedly connected to one side of the stabilizing plate.

[0013] The advantages of this utility model are:

[0014] In this invention, the connecting part mainly serves to connect with the protective structure, while the protective cylinder provides the main support and connection. The protective cylinder can be fitted onto the surface of the connecting part. The puller can slide along the inner wall of the protective cylinder via a pull ring, allowing the puller to be installed and removed from the inner wall of the protective cylinder. Simultaneously with the connection between the protective cylinder and the connecting part, the covering hole is fitted onto the outside of the sealing tube. The fixing ring on the inner wall of the covering hole forms a locking connection with the sealing tube. The anti-slip groove on the inner wall of the fixing ring improves the firmness of the locking connection between the fixing ring and the sealing tube. Therefore, when the puller is pulled out from the inner wall of the protective cylinder, it simultaneously pulls out the sealing tube on the surface of the needle. The protective cylinder can cover the exposed needle in a shorter time, reducing the area and time of contact between the needle and the outside air. This solves the problem that most traditional insulin pen needles cannot be isolated from the needle, leaving the needle completely exposed to the air after the sealing tube is removed when replacing the needle. This allows bacteria, dust, and other contaminants in the air to enter the pen cartridge, leading to medication deterioration or an increased risk of infection. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a schematic diagram of the insulin pen needle body structure of this utility model;

[0018] Figure 3 This is a first three-dimensional schematic diagram of the protective structure of this utility model;

[0019] Figure 4 This is a second perspective view of the protective structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the protective structure of this utility model;

[0021] Figure 6 This is a schematic diagram showing the overall structure of this utility model broken down.

[0022] Figure 7 This is a half-sectional schematic diagram of the overall structure of this utility model.

[0023] In the diagram: 1. Insulin pen needle body; 2. Adjustment handle; 3. Connecting end; 4. Connecting part; 5. Protective structure; 501. Protective tube; 502. Pull-out part; 503. Protective rubber; 504. Pull ring; 505. Covering hole; 506. Fixing ring; 507. Anti-slip groove; 6. Injection part; 601. Connecting cap; 602. Needle tube; 603. Sealing tube; 7. Connecting block; 8. Connecting groove; 9. Stabilizing plate; 10. Anti-slip pad. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0026] This application discloses a bidirectional protective safety insulin pen needle. (Refer to...) Figures 1 to 7 A two-way protective safety insulin pen needle includes an insulin pen needle body 1, an adjustment handle 2 movably provided at one end of the insulin pen needle body 1, a docking part 4 fixedly connected to the surface of the insulin pen needle body 1, and a protective structure 5 provided on the surface of the docking part 4.

[0027] The protective structure 5 includes a protective cylinder 501, the inner wall of which is fitted onto the surface of the docking member 4. A puller 502 is inserted into the inner wall of the protective cylinder 501. A protective rubber 503 is fixedly connected to the surface of the puller 502. A pull ring 504 is fixedly connected to one side of the puller 502, and a covering hole 505 is provided on the other side of the puller 502. A fixing ring 506 is fixedly connected to the inner wall of the covering hole 505. An anti-slip groove 507 is provided on the inner wall of the fixing ring 506. A connecting end 3 is provided at the other end of the insulin pen needle body 1. An injection member 6 is provided on the surface of the connecting end 3. The injection member 6 includes a connecting cap 601, the inner wall of which is threaded to the surface of the connecting end 3. The inner cavity of 1 is fixedly connected to a needle tube 602. The surface of the needle tube 602 is sleeved on a sealing tube 603. The sealing tube 603 is located in the inner cavity of the covering hole 505. The inner wall of the fixing ring 506 is snapped onto the surface of the sealing tube 603. The injection component 6 in this bidirectional protective safety insulin pen needle can be regarded as a disposable needle. The connecting end 3 is integrally formed with the insulin pen needle body 1. The injection component 6 is threadedly connected to the connecting end 3 through a connecting cap 601. The needle tube 602 is a segmented type. While the connecting cap 601 is connected to the connecting end 3, the needle tube 602 inside the connecting cap 601 is inserted into the interior of the insulin pen needle body 1 to achieve liquid supply. The sealing tube 603 can seal and protect the needle tube 602 outside the connecting cap 601.

[0028] The docking component 4 primarily serves to connect with the protective structure 5, while the protective cylinder 501 provides main support and connection. The protective cylinder 501 can be fitted onto the surface of the docking component 4. The pulling component 502 can slide along the inner wall of the protective cylinder 501 via the pull ring 504, allowing the pulling component 502 to be installed and removed from the inner wall of the protective cylinder 501. Simultaneously, while the protective cylinder 501 is connected to the docking component 4, the covering hole 505 is fitted onto the outside of the sealing tube 603. The fixing ring 506 on the inner wall of the covering hole 505 forms a snap-fit ​​with the sealing tube 603. The anti-slip groove 507 on the inner wall of the fixing ring 506 improves the sealing performance. The secure engagement between the retaining ring 506 and the sealing tube 603 ensures that when the puller 502 is pulled out from the inner wall of the protective cylinder 501, the puller 502 will simultaneously pull out the sealing tube 603 on the surface of the needle tube 602. The protective cylinder 501 can cover the exposed needle tube 602 in a shorter time, reducing the area and time of contact between the needle tube 602 and the outside air. When the port of the protective cylinder 501 comes into contact with the patient's skin, it will isolate the needle tube 602 again. When the insulin pen needle body 1 is pushed to puncture the needle tube 602 into the patient's skin, the docking piece 4 slides along the inner wall of the protective cylinder 501.

[0029] The protective rubber 503 increases the elasticity between the protective sleeve 501 and the pull-out part 502, so that the protective rubber 503 absorbs energy when the insulin pen needle body 1 is accidentally dropped, and minimizes the damage to the needle tube 602 inside the covering hole 505, thus achieving a two-way protection effect.

[0030] Reference Figure 2 and Figure 3 The inner wall of the protective cylinder 501 is fixedly connected with a connecting block 7. The connecting block 7 is T-shaped and there are multiple connecting blocks 7. A connecting groove 8 is opened on one side of the docking part 4. There are multiple connecting grooves 8. The surface of the connecting block 7 is slidably connected to the corresponding connecting groove 8. Through the connecting block 7, the T-shaped connecting block 7 can be slidably connected to the inner wall of the connecting groove 8. On the one hand, the connection position of the protective cylinder 501 can be limited, and on the other hand, the stability of the protective cylinder 501 when connected to the docking part 4 can be increased.

[0031] Reference Figure 3 and Figure 4 A stabilizing plate 9 is fixedly connected to the surface of the protective cylinder 501. An anti-slip pad 10 is fixedly connected to one side of the stabilizing plate 9. By setting the stabilizing plate 9, the stabilizing plate 9 can increase the contact area between the insulin pen needle body 1 and the patient's skin, and further improve the stability when pushing the needle. The anti-slip pad 10 can be made of rubber to increase the friction between the stabilizing plate 9 and the patient's skin.

[0032] Working principle: A new injection piece 6 is removed. The injection piece 6 is threadedly connected to the connecting end 3 via a connecting cap 601. Simultaneously, the needle tube 602 inside the connecting cap 601 is inserted into the insulin pen needle body 1 to supply liquid. The sealing tube 603 seals and protects the needle tube 602 outside the connecting cap 601. The protective sleeve 501 is fitted onto the surface of the docking part 4. Simultaneously, the covering hole 505 is fitted onto the outside of the sealing tube 603. The retaining ring 506 on the inner wall of the covering hole 505 forms a snap-fit ​​with the sealing tube 603. The anti-slip groove 507 on the inner wall of the retaining ring 506 improves the firmness of the snap-fit ​​between the retaining ring 506 and the sealing tube 603, thereby preventing the needle from being pulled out. When the puller 502 is pulled out from the inner wall of the protective sleeve 501, the puller 502 will simultaneously pull out the sealing tube 603 on the surface of the needle tube 602. The protective sleeve 501 can cover the exposed needle tube 602 in a shorter time, reducing the area and time of contact between the needle tube 602 and the outside air. When the port of the protective sleeve 501 comes into contact with the patient's skin, it will isolate the needle tube 602 again. When the insulin pen needle body 1 is pushed to puncture the needle tube 602 into the patient's skin, the docking part 4 slides along the inner wall of the protective sleeve 501. The stabilizing plate 9 can increase the contact area between the insulin pen needle body 1 and the patient's skin, further improving the stability during needle insertion. The anti-slip pad 10 can be made of rubber to increase the friction between the stabilizing plate 9 and the patient's skin.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A two-way guard safety insulin pen needle, characterized by: The device includes an insulin pen needle body (1), one end of which is movably provided with an adjustment handle (2), and a docking part (4) is fixedly connected to the surface of the insulin pen needle body (1), and a protective structure (5) is provided on the surface of the docking part (4). The protective structure (5) includes a protective cylinder (501), the inner wall of which is fitted onto the surface of the docking member (4), a puller (502) is inserted into the inner wall of the protective cylinder (501), a protective rubber (503) is fixedly connected to the surface of the puller (502), a pull ring (504) is fixedly connected to one side of the puller (502), a cover hole (505) is opened on the other side of the puller (502), a fixing ring (506) is fixedly connected to the inner wall of the cover hole (505), and an anti-slip groove (507) is opened on the inner wall of the fixing ring (506).

2. The bidirectional protective safety insulin pen needle according to claim 1, characterized in that: The inner wall of the protective cylinder (501) is fixedly connected with a connecting block (7), the connecting block (7) is T-shaped, and there are multiple connecting blocks (7).

3. The bidirectional protective safety insulin pen needle according to claim 2, characterized in that: The docking member (4) has a connecting groove (8) on one side. There are multiple connecting grooves (8), and the surface of the connecting block (7) is slidably connected to the corresponding connecting groove (8).

4. The bidirectional protective safety insulin pen needle according to claim 1, characterized in that: The insulin pen needle body (1) is provided with a connecting end (3) at the other end, and an injection element (6) is provided on the surface of the connecting end (3).

5. The bidirectional protective safety insulin pen needle according to claim 4, characterized in that: The injection component (6) includes a connecting cap (601), the inner wall of which is threaded to the surface of the connecting end (3), and a needle tube (602) is fixedly connected to the inner cavity of the connecting cap (601), with the surface of the needle tube (602) sleeved on the sealing tube (603).

6. The bidirectional protective safety insulin pen needle according to claim 5, characterized in that: The sealing tube (603) is disposed in the inner cavity of the covering hole (505), and the inner wall of the fixing ring (506) is engaged with the surface of the sealing tube (603).

7. The bidirectional protective safety insulin pen needle according to claim 1, characterized in that: A stabilizing plate (9) is fixedly connected to the surface of the protective cylinder (501), and an anti-slip pad (10) is fixedly connected to one side of the stabilizing plate (9).

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