Insulin needle dismounting and taking device
By introducing a replaceable removal ring and gear engagement mechanism into the insulin needle ejector, the problem of compatibility with different needle sizes is solved, enabling convenient removal and safe positioning of multiple needle sizes, thus improving ease of use and safety.
Patent Information
- Application Number
- CN202423031043.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing insulin needle ejectors are not compatible with the connection structures of needles of different sizes and specifications produced by different manufacturers, which reduces the ease of use of the ejectors.
An insulin needle removal device was designed, comprising a needle removal mechanism, a positioning mechanism, and a retrieval mechanism. By setting an installation cylinder with a fixed groove and a replaceable removal ring, and cooperating with the meshing rotation of the driving gear and the driven gear, it is possible to adapt and unscrew needles of different specifications.
The needle remover has been improved in its applicability, making it easy to remove insulin needles of different sizes, thus enhancing its ease of use. It also has a positioning mechanism to prevent cracking caused by tilting of the insulin pen, ensuring safety.
Smart Images

Figure CN223914495U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of insulin needle removal, specifically to an insulin needle removal device. Background Technology
[0002] Insulin injection is one of the important means of treating diabetes. Insulin is usually injected through an insulin pen or an insulin pump. Because insulin pens are cheaper than insulin pumps, insulin pens have a wider range of applications. When using an insulin pen to inject insulin, a needle needs to be attached to the top before the liquid can be injected into the patient's body. After the injection, this disposable needle needs to be removed. The removal of insulin needles is usually done by hand. However, because the needle tube at the top is small, it is not easy to control the hand position and is easy to be pricked by the needle. Therefore, the current medical industry uses insulin needle removers to remove the needles from insulin pens.
[0003] To address this issue, Chinese patent CN219558335U proposes an insulin needle remover. This device solves the problems of traditional insulin needle removers, which cannot fully automate needle removal and require manual operation, resulting in low efficiency. It also avoids the risk of hand injuries and medical infections that can occur when removing needles with traditional removers. Furthermore, this device features a large-capacity needle storage compartment, ensuring that the needle does not come into contact with the body during subsequent retrieval. However, with the development of the modern medical industry, the number of manufacturers producing medical auxiliary tools is gradually increasing. Meanwhile, the specifications and types of medical aids such as insulin pens are constantly increasing. Therefore, the size and shape of the needle connection structure used on different insulin pens are different. The size of the removal connection component at the top of a common insulin needle remover is fixed. When removing needles with different sizes and specifications of connection components produced by different manufacturers, it is impossible to adapt them, resulting in the needle area not being able to connect and thus being unable to be removed. Moreover, the common remover does not have the function of adjusting and replacing the connection component, thus reducing the convenience of using the remover. In view of this, this design proposes an insulin needle remover. Utility Model Content
[0004] The purpose of this invention is to provide an insulin needle ejector to solve the problems mentioned in the background art. To achieve the above objective, this invention proposes an insulin needle ejector, comprising a mounting base and a needle ejection mechanism, a positioning mechanism, and a retrieval mechanism, all mounted on the top of the mounting base.
[0005] The needle removal mechanism includes a drive gear rotatably mounted on one side of the upper end of the inner wall of the mounting base. A driven gear is rotatably mounted at the middle position of the upper end of the inner wall of the mounting base, and the outer wall of the drive gear meshes with the outer wall of the driven gear. A mounting cylinder is fixedly provided at the middle position of the top of the driven gear, and the top of the mounting cylinder is inserted and connected to the top of the mounting base. A fixing groove is provided at the middle position of the top of the mounting cylinder. A needle removal ring is inserted and connected to the inner wall of the fixing groove. A through hole is provided at the bottom of the inner wall of the fixing groove. A first motor is mounted on one side of the top of the mounting base, and one end of the drive gear passes through the top of the mounting base and is fixedly connected to the output end of the first motor.
[0006] In one example, the positioning mechanism includes a first limiting groove on the top of the mounting base located on both sides of the mounting cylinder, and a second limiting groove on the other side of the top of the mounting base. The inner walls of the two first limiting grooves are slidably connected with clamps.
[0007] In one example, a connecting strip is fixedly provided on one side of each of the two clamps, and the outer wall of one end of each connecting strip is slidably connected to the inner wall of both ends of the second limiting slide groove. A bidirectional lead screw is rotatably connected to the inner wall of the second limiting slide groove.
[0008] In one example, the outer walls of both ends of the bidirectional lead screw are threaded to the inner walls of one end of the two connecting strips, a second motor is installed on one side of the outer wall of the mounting base, and one end of the bidirectional lead screw is fixedly connected to the output end of the second motor. Protective pads are fixedly provided at the upper edges of one side of the two clamping plates.
[0009] In one example, the recycling mechanism includes a recycling groove formed in the inner wall of the mounting base, and the inner wall of one end of the through hole passes through the inner wall of the driven gear and communicates with the inner wall of the recycling groove. A mounting groove is formed on one side of the mounting base.
[0010] In one example, the inner wall of the mounting slot is connected to the inner wall of one end of the recycling slot, and a collection box is installed through the inner wall of the mounting slot.
[0011] In one example, a control panel is fixedly provided on one side of the mounting base, and both the first motor and the second motor are electrically connected to an external power supply through the control panel.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a needle removal mechanism, when facing insulin pens with needle connection components of different specifications, a mounting cylinder with a fixing groove is set up, in which a connection removal ring is embedded. With the meshing and rotation of the drive gear and the driven gear, a replacement removal ring with a groove of different inner diameter can be used to engage the appropriate needle and unscrew it, making its application range wider and facilitating the removal of insulin needles of different specifications, thereby improving the convenience of using the device. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the needle removal mechanism of this utility model;
[0015] Figure 3 This is a schematic diagram of the positioning mechanism of this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the recycling mechanism of this utility model.
[0017] In the diagram: 1. Mounting base; 2. Needle removal mechanism; 201. Driving gear; 202. Driven gear; 203. Mounting cylinder; 204. Fixing groove; 205. Removal ring; 206. Through hole; 207. First motor; 3. Positioning mechanism; 301. First limiting groove; 302. Second limiting groove; 303. Clamping plate; 304. Connecting strip; 305. Bidirectional lead screw; 306. Second motor; 307. Protective pad; 4. Recycling mechanism; 401. Recycling trough; 402. Mounting groove; 403. Collection box. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-4 This utility model provides a technical solution: an insulin needle removal device, including a mounting base 1 and a needle removal mechanism 2, a positioning mechanism 3 and a recycling mechanism 4, all mounted on the top of the mounting base 1;
[0020] The needle removal mechanism 2 includes a drive gear 201 rotatably mounted on one side of the upper inner wall of the mounting base 1, a driven gear 202 rotatably mounted at the middle position of the upper inner wall of the mounting base 1, and the outer wall of the drive gear 201 meshes with the outer wall of the driven gear 202. A mounting cylinder 203 is fixedly provided at the middle position of the top of the driven gear 202, and the top of the mounting cylinder 203 is inserted and connected to the top of the mounting base 1. A fixing groove 204 is provided at the middle position of the top of the mounting cylinder 203, and a needle removal ring 205 is inserted and connected to the inner wall of the fixing groove 204. A through hole 206 is provided at the bottom of the inner wall of the fixing groove 204. A first motor 207 is mounted on one side of the top of the mounting base 1, and one end of the drive gear 201 passes through the top of the mounting base 1 and is fixedly connected to the output end of the first motor 207.
[0021] During use, after insulin injection, the insulin pen is inverted so that the needle is inserted into the removal ring 205 and then into the through hole 206. Since the size of the insulin pen is larger than the size of the needle connection area, it rests against the top of the removal ring 205. Then, the positioning mechanism 3 is used to position and fix it. The first motor 207 is started, causing the driving gear 201 to rotate with the driven gear 202, which in turn causes the mounting cylinder 203 to rotate with the removal ring 205 in its upper fixing groove 204, thus unscrewing the needle. When removing needles of different sizes, the removal ring 205 in the fixing groove 204 can be directly removed and replaced with a suitable removal ring 205 to remove the needle. This design, by setting the mounting cylinder with the fixing groove 204, allows for easy removal of the needle. The mounting cylinder 203 has an embedded connecting removal ring 205, which allows for the replacement of removal rings 205 with different inner diameter grooves to engage with suitable needles. This makes the device more versatile and easier to remove insulin needles of different sizes, thus improving the ease of use. Furthermore, the positioning mechanism 3 includes a first limiting groove 301 on the top of the mounting base 1 located on both sides of the mounting cylinder 203, and a second limiting groove 302 on the other side of the top of the mounting base 1. The inner walls of both first limiting grooves 301 are slidably connected to clamping plates 303, and both the first and second limiting grooves 301 and 302 have a limiting function, making it difficult for the clamping plates 303 and the connecting strip 304 to detach.
[0022] Furthermore, connecting strips 304 are fixedly provided on one side of each of the two clamping plates 303, and the outer walls of one end of each connecting strip 304 are slidably connected to the inner walls of both ends of the second limiting slide groove 302. A bidirectional lead screw 305 is rotatably connected to the inner wall of the second limiting slide groove 302. The outer walls of both ends of the bidirectional lead screw 305 are threadedly connected to the inner walls of one end of each of the two connecting strips 304. A second motor 306 is installed on one side of the outer wall of the mounting base 1, and one end of the bidirectional lead screw 305 is fixedly connected to the output end of the second motor 306. Protective pads 307 are fixedly provided at the upper edge of one side of each of the two clamping plates 303.
[0023] When in use, after the insulin pen inserts its needle area into the through hole 206, the second motor 306 is activated to drive the bidirectional lead screw 305 to rotate, thereby connecting the threaded connecting bar 304 and causing the two clamping plates 303 to slide against each other in the first limiting slide groove 301, thereby clamping and fixing the upper part of the insulin pen. Because it is clamped in the center, the insulin pen is positioned in a vertical state. Later, when the needle is turned, it is less likely that the connection area between the insulin pen and the needle will crack due to the torque caused by the tilt, thus affecting the use of the insulin pen.
[0024] Furthermore, the recycling mechanism 4 includes a recycling groove 401 opened on the inner wall of the mounting base 1, and the inner wall of one end of the through hole 206 passes through the inner wall of the driven gear 202 and communicates with the inner wall of the recycling groove 401. The mounting base 1 has a mounting groove 402 opened on one side.
[0025] The inner wall of the mounting groove 402 is connected to the inner wall of one end of the recycling groove 401. A collection box 403 is installed through the inner wall of the mounting groove 402. Since the through hole 206 in the mounting cylinder 203 is connected to the recycling groove 401, the needle will fall directly into the recycling groove 401 after being unscrewed. Since the bottom of the inner wall of the recycling groove 401 is inclined, the needle will slide directly into the collection box 403 in the mounting groove 402 for collection. After the collection box 403 is full, it can be removed for disposal.
Claims
1. An insulin needle unloader, comprising a mounting base (1) and a needle unloading mechanism (2), a positioning mechanism (3) and a recycling mechanism (4) all mounted on the top of the mounting base (1). characterized in that The needle unloading mechanism (2) comprises a driving gear (201) rotatably mounted on one side of the upper end of the inner wall of the mounting base (1), a driven gear (202) rotatably mounted at the middle position of the upper end of the inner wall of the mounting base (1), and the outer wall of the driving gear (201) is engaged with the outer wall of the driven gear (202), a mounting cylinder (203) fixedly arranged at the middle position of the top of the driven gear (202), and the top of the mounting cylinder (203) is connected with the top of the mounting base (1), a fixing groove (204) is arranged at the middle position of the top of the mounting cylinder (203), the needle unloading ring (205) is connected with the inner wall of the fixing groove (204), a through hole (206) is arranged at the bottom of the inner wall of the fixing groove (204), a first motor (207) is mounted on one side of the top of the mounting base (1), and one end of the driving gear (201) is fixedly connected with the output end of the first motor (207) through the top of the mounting base (1).
2. An insulin needle removal device according to claim 1, characterized in that: The positioning mechanism (3) comprises a first limiting sliding groove (301) arranged at the top of the mounting base (1) on both sides of the mounting cylinder (203), a second limiting sliding groove (302) arranged at the top of the mounting base (1) on the other side, and the inner walls of the two first limiting sliding grooves (301) are slidably connected with clamping plates (303).
3. An insulin needle removal device according to claim 2, wherein: One side of each of the two clamping plates (303) is fixedly provided with a connecting strip (304), and the outer walls of one end of the two connecting strips (304) are slidably connected with the inner walls of both ends of the second limiting sliding groove (302), and the inner wall of the second limiting sliding groove (302) is rotatably connected with a bidirectional screw rod (305).
4. An insulin needle removal device according to claim 3, wherein: The outer walls of both ends of the bidirectional screw rod (305) are threadedly connected with the inner walls of one end of the two connecting strips (304), a second motor (306) is mounted on one side of the outer wall of the mounting base (1), one end of the bidirectional screw rod (305) is fixedly connected with the output end of the second motor (306), and a protective pad (307) is fixedly arranged at the upper edge of one side of each of the two clamping plates (303).
5. The insulin needle removal device of claim 1, wherein: The recycling mechanism (4) comprises a recycling groove (401) arranged in the inner wall of the mounting base (1), and the inner wall of one end of the through hole (206) is in communication with the inner wall of the driven gear (202) and the inner wall of the recycling groove (401), and a mounting groove (402) is arranged on one side of the mounting base (1).
6. An insulin needle removal device according to claim 5, wherein: The inner wall of the mounting groove (402) is in communication with the inner wall of one end of the recycling groove (401), and the inner wall of the mounting groove (402) is transversely mounted with a collecting box (403).
7. An insulin needle removal device according to claim 4, wherein: A control panel is fixedly arranged on one side of the mounting base (1), and the first motor (207) and the second motor (306) are electrically connected with the external power supply through the control panel.
Citation Information
Patent Citations
Insulin needle dismounting and taking device
CN219558335U