Automatic insulin needle taking and unloading device

By designing an automatic insulin needle removal device, which utilizes an elastic inner cylinder and a motor-driven mechanical structure, contactless and rapid removal of insulin needles is achieved. This solves the problems of cumbersome operation and puncture injuries in existing technologies, and improves operational safety and convenience.

CN223914494UActive Publication Date: 2026-02-17JISHOU UNIVERSITY
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Patent Information

Application Number
CN202423019996.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-02-17
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

In existing technologies, the disassembly process of insulin needles is cumbersome and can easily lead to injuries to medical staff or patients. Furthermore, it requires repeated manual disinfection and disposal, which increases the number of steps involved and the risk of back injury.

Method used

An automatic insulin needle remover was designed. Utilizing an elastic inner cylinder and a motor-driven mechanical structure, it automatically clamps and rotates the insulin needle, achieving contactless removal and collection. Combined with a sponge sterilization function, it simplifies the operation process.

Benefits of technology

It enables contactless and rapid removal of insulin needles, avoiding punctures and cumbersome procedures, simplifying disinfection and disposal steps, and improving operational safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic insulin needle taking and unloading device, and relates to the technical field of medical instruments. The expansion groove is formed in the inner wall of the lower part of the shell; the extrusion groove is formed in the inner wall of the upper part of the shell; the elastic inner cylinder is in threaded connection with the interior of the shell, and an expansion joint is formed in the upper portion of the elastic inner cylinder; the rubber pads are symmetrically and fixedly connected to the inner ring face of the upper portion of the elastic inner cylinder, the number of the rubber pads is not less than two, and the purpose of automatically collecting insulin needles is achieved by enabling the needles spirally detached from an insulin pen to fall to the bottommost portion of the elastic inner cylinder. The tedious steps of manually detaching the needle from the insulin pen in the prior art and rotationally screwing off the needle and discarding the needle into an appointed garbage can in the prior art are avoided, and the effects of continuously injecting insulin into different patients and quickly taking down and collecting the needle are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an automatic insulin needle removal and removal device. Background Technology

[0002] Insulin plays a crucial role in the intermediate metabolism of muscle, liver, and adipose tissue. It promotes anabolism, lowers blood sugar, and has a cell-growth-promoting effect. After injecting insulin, the needle should be removed and the protective cap replaced. Next, rotate the needle to detach it from the insulin pen. Finally, properly seal the needle and discard it.

[0003] Currently, when injecting insulin using an insulin pen in hospitals or by individuals, it is usually necessary to manually remove the needle from the insulin pen. However, because the insulin needle is very thin, it is easy to prick one's hand during manual removal due to factors such as needle shaking or unsteady hand. Once pricked by a used insulin needle, medical staff or patients may come into contact with residual insulin and blood. If medical staff are accidentally pricked, the insulin may enter the body through the wound and cause infection.

[0004] When medical staff administer insulin injections to multiple patients in a hospital, they need to change needles repeatedly. Disassembly is mostly done manually, and after manual disassembly, the needles need to be discarded into designated needle waste bins. Repeated disposal leads to cumbersome procedures, and bending over to discard the needles can easily damage the back. When removing the needles from the insulin pen, medical staff also need to manually disinfect the needles, further increasing the number of procedures.

[0005] To address the above problems, an automated insulin needle removal device is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, an automatic insulin needle removal and removal device is provided. This technical solution solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention can be implemented using the following technical solutions:

[0008] This utility model provides an automatic insulin needle removal and removal device, comprising:

[0009] shell;

[0010] An expansion groove is formed on the lower inner wall of the outer casing;

[0011] An extrusion groove is formed on the upper inner wall of the outer casing;

[0012] An elastic inner cylinder is threadedly connected to the outer shell, and an expansion joint is provided at the upper part of the elastic inner cylinder;

[0013] Rubber pads are symmetrically and fixedly connected to the upper inner ring surface of the elastic inner cylinder, and no fewer than two rubber pads are provided.

[0014] Furthermore, a base support is fitted at the lower part of the elastic inner cylinder, and a crossbeam is fixedly connected to the center of the base support. The crossbeam is adapted to the bottom groove of the elastic inner cylinder. A sliding tube is fixedly connected to the bottom of the base support, and a sliding rod is slidably connected to the upper limit of the sliding tube. A spring is fitted around the sliding tube and the sliding rod. A bottom shell is threaded to the lower end of the outer shell, and a partition is fixedly connected to the middle of the bottom shell. A motor is fixedly connected to the bottom inside the bottom shell, and the output shaft of the motor is fixedly connected to the sliding rod. A switch button is installed on the outside of the bottom shell.

[0015] Furthermore, a top shell is fitted onto the upper end of the outer shell, and a partition plate is fixedly connected to the upper cavity of the top shell. Multiple overflow ports are equidistantly opened on the partition plate. A sponge is provided on the inner surface of the top shell. An injection port is opened on the top of the top shell. An insertion port is equidistantly opened in an annular shape on the top of the top shell, and a positioning pin is inserted into the insertion port.

[0016] Furthermore, the outer diameter of the base is adapted to the inner diameter of the outer shell, the outer diameter of the elastic inner cylinder is adapted to the inner diameter of the base, the sliding tube, the sliding rod, and the spring are located inside the bottom shell, the lower end of the spring abuts against the partition plate, and the sliding rod is sleeved in the middle of the partition plate.

[0017] Furthermore, the overflow port extends through the partition plate, and the insertion port corresponds to the sponge.

[0018] As described above, the features and advantages of the automatic insulin needle removal device of this utility model are:

[0019] When the upper part of the elastic inner cylinder moves downward to the expansion groove in the outer shell, the portion of the upper part of the elastic inner cylinder that was contracted due to the expansion joint is released within the expansion groove. Therefore, the upper part of the elastic inner cylinder rotates to both sides around the bottom of the expansion joint to return to its original state. At this time, after the upper part of the elastic inner cylinder returns to its original state, it no longer holds the insulin needle, allowing the needle that has been screwed off the insulin pen to fall to the bottom of the elastic inner cylinder. This achieves the purpose of automatically collecting the insulin needle. After injecting insulin into multiple patients, the above steps can be repeated multiple times to collect multiple insulin needles in the elastic inner cylinder. This avoids the need to manually remove the needle from the insulin pen and the cumbersome steps of unscrewing and discarding it into a designated trash can. It achieves the effect of continuously injecting insulin into different patients and quickly removing and collecting the needles.

[0020] Meanwhile, the insulin needle can be automatically removed by the clamping and releasing of the elastic inner cylinder, avoiding the problem of punctures when manually removing it, and also preventing medical staff or patients from coming into contact with residual insulin and blood. This achieves the purpose of quick and contactless removal of insulin needles. At the same time, this device is portable and compact, easy to carry, and can be placed on a nursing bed or put in a pocket for easy carrying at any time.

[0021] The bottom shell is manually rotated to detach it from the outer shell, and the bottom shell causes the base to disengage from the elastic inner cylinder. Then, the operator holds the outer shell and moves it to the needle collection bin, allowing the insulin needles to pour out from the bottom shell. This achieves the purpose of collecting multiple insulin needles in one place, avoiding hand contact with the insulin needles. It also allows for the unified disposal of insulin needles after injecting insulin into multiple patients, and avoids the problem of bending over to dispose of the needles, which can damage the operator's back.

[0022] The insulin pen and insulin needle are inserted into the center of the sponge and top shell. During insertion, the outer part of the upper part of the insulin needle squeezes the sponge, causing the disinfectant alcohol absorbed inside the sponge to adhere to the insulin pen and needle. This provides initial disinfection of the insulin pen and needle, avoiding contact with medical staff and subsequent waste disposal workers that could lead to punctures and infectious disease infections. It also disinfects the part of the insulin pen that is closest to the patient, eliminating the need for manual disinfection. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a three-dimensional sectional view of the upper part of the overall structure shown in this utility model;

[0025] Figure 3 This is a three-dimensional sectional view of the lower part of the overall structure shown in this utility model;

[0026] Figure 4 This is a three-dimensional schematic diagram of the slide tube, slide rod, and spring structure shown in this utility model.

[0027] Figure 5 This is an exploded three-dimensional schematic diagram of the overall structure of this utility model;

[0028] Figure 6 As shown in this utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0029] Figure 7 As shown in this utility model Figure 5 Enlarged schematic diagram of the structure at point B;

[0030] Figure 8 This is a three-dimensional schematic diagram of the elastic inner cylinder state change structure shown in this utility model;

[0031] Figure 9 This is a three-dimensional cross-sectional view of the shell structure shown in this utility model.

[0032] The reference numerals in the accompanying drawings of this utility model are as follows: 1. Outer shell; 2. Expansion groove; 3. Extrusion groove; 4. Elastic inner cylinder; 5. Expansion joint; 6. Rubber pad; 7. Base support; 8. Crossbeam; 9. Slide tube; 10. Slide rod; 11. Spring; 12. Bottom shell; 13. Partition plate; 14. Motor; 15. Switch button; 16. Top shell; 17. Partition plate; 18. Overflow port; 19. Sponge; 20. Injection port; 21. Insertion port; 22. Positioning pin. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0034] See 1~ Figure 9 As shown in the figure, an embodiment of the present invention is provided, and an automatic insulin needle removal device will be described in detail below:

[0035] An automatic insulin needle removal device includes: a housing 1, an expansion groove 2 on the lower inner wall of the housing 1, and a compression groove 3 on the upper inner wall of the housing 1. The expansion groove 2 and the compression groove 3 are interconnected, and the connection between adjacent groove walls is sloped.

[0036] The outer shell 1 is internally threaded with an elastic inner cylinder 4, and the upper opening of the elastic inner cylinder 4 is at the same level as the upper opening of the outer shell 1. An expansion joint 5 is provided on the upper part of the elastic inner cylinder 4. The elastic inner cylinder 4 is made of elastic polyurethane plastic. When the upper part of the elastic inner cylinder 4 is located in the position of the extrusion groove 3, the extrusion groove 3 will extrude and deform the upper part of the elastic inner cylinder 4, and they will move closer to each other through the expansion joint 5.

[0037] The upper inner ring of the elastic inner cylinder 4 is symmetrically and fixedly connected with rubber pads 6, and there are no fewer than two rubber pads 6.

[0038] A base support 7 is fitted at the bottom of the elastic inner cylinder 4. A crossbeam 8 is fixedly connected to the center of the base support 7. The crossbeam 8 is adapted to the bottom groove of the elastic inner cylinder 4. A slide tube 9 is fixedly connected to the bottom of the base support 7. A slide rod 10 is slidably connected to the upper limit of the slide tube 9. The upper part of the slide rod 10 extends to the outside of the slide tube 9 and slides, forming a limit sliding of the slide rod 10. A spring 11 is fitted on the outside of the slide tube 9 and the slide rod 10. A bottom shell 12 is threadedly connected to the lower end of the outer shell 1. A partition 13 is fixedly connected to the middle of the bottom shell 12. A motor 14 is fixedly connected to the bottom of the bottom shell 12. The output shaft of the motor 14 is fixedly connected to the slide rod 10. A switch button 15 is installed on the outside of the bottom shell 12. The switch button 15 controls the motor 14 to turn on and off through a controller.

[0039] The outer shell 1 is fitted with a top shell 16 at its upper end, and the outer shell 1 and the top shell 16 are tightly inserted together. A partition plate 17 is fixedly connected inside the upper cavity of the top shell 16. The partition plate 17 is circular and divides the upper part of the top shell 16 into an injection area and an installation area. The area on the side of the partition plate 17 and the top shell 16 that is close to each other is the injection area. Multiple overflow ports 18 are equidistantly opened on the partition plate 17 and the overflow ports 18 pass through the partition plate 17. A sponge 19 is provided on the inner surface of the top shell 16 and the sponge 19 is attached to the inner ring surface of the partition plate 17. The inner diameter of the sponge 19 is smaller than the outer diameter of the insulin needle and the upper part of the needle tip. An injection port 20 is opened at the top of the top shell 16 and a sealing plug is inserted into the injection port 20. An insertion port 21 is equidistantly opened at the top of the top shell 16. A positioning needle 22 is inserted into the insertion port 21 and is also inserted into the sponge 19 when it is inserted through the insertion port 21, so as to fix the sponge 19 in the installation area of ​​the top shell 16.

[0040] The outer diameter of the base 7 is adapted to the inner diameter of the outer shell 1, the outer diameter of the elastic inner cylinder 4 is adapted to the inner diameter of the base 7, the slide tube 9, the slide rod 10, and the spring 11 are located inside the bottom shell 12, the lower end of the spring 11 abuts against the partition 13, and the partition 13 has a hole in the middle through which the slide rod 10 can pass.

[0041] Based on the above embodiments, the following is the complete working process and working principle of the above embodiments:

[0042] The operating procedure is as follows: First, the operator pulls up and removes the cap on the injection port 20. Then, disinfectant alcohol is injected into the injection area of ​​the partition plate 17 away from the sponge 19 through the injection port 20. After injection, the operator installs the sealing plug on the injection port 20 to achieve a seal. At this time, the injected disinfectant alcohol gradually seeps into the sponge 19 through the overflow port 18 on the partition plate 17. After the sponge 19 absorbs enough disinfectant alcohol, the disinfectant alcohol stops seeping out from the overflow port 18. At this time, the operator holds the outer shell 1 and aligns the opening of the top shell 16 with the insulin needle, so that the insulin pen and insulin needle are inserted into the center of the sponge 19 and the top shell 16. During the insertion process, the upper outer side of the insulin needle squeezes the sponge 19, so that the disinfectant alcohol absorbed in the sponge 19 adheres to the insulin pen and needle. This achieves the initial disinfection of the insulin pen and needle, avoiding the problem of needle sticks and infection caused by the contact of medical staff and subsequent waste disposal personnel. At the same time, it also disinfects the part of the insulin pen that is closest to the patient, eliminating the need for manual disinfection.

[0043] After the insulin pen and needle are inserted into the middle of the sponge 19, the operator continues to push them until they are inserted into the compression groove 3 inside the outer casing 1, and also into the elastic inner cylinder 4, which is in a closed state at the top. At this time, the insulin needle is in an interference fit with the rubber pad 6, which clamps and fixes the insulin needle. Then, the operator holds the insulin pen with one hand and the bottom casing 12 with the other hand and presses the switch button 15 to start the motor 14. After the motor 14 starts, it drives the base 7 to rotate through the slide rod 10 and the slide tube 9, and drives... The elastic inner cylinder 4, inserted on the crossbeam 8, rotates synchronously. During this rotation, the elastic inner cylinder 4 drives the insulin needle, which is tightly clamped inside, to rotate on the insulin pen. As the insulin needle rotates on the insulin pen, because the elastic inner cylinder 4 is threadedly connected to the outer shell 1, the elastic inner cylinder 4 rotates slowly and moves downward along the outer shell 1. During this downward movement, the elastic inner cylinder 4 presses down on the base support 7, causing it to move downward within the bottom shell 12. During this downward movement, the base support 7 synchronously drives the slide tube 9 to slide downward on the outer surface of the slide rod 10, and simultaneously compresses the spring 1. As the upper part of the elastic inner cylinder 4 moves downward to the expansion groove 2 in the outer shell 1, the insulin needle is also spirally removed from the insulin pen. At this time, because the upper part of the elastic inner cylinder 4 has moved downward to the expansion groove 2 in the outer shell 1, the part of the upper part of the elastic inner cylinder 4 that was contracted due to the expansion joint 5 is released in the expansion groove 2. Therefore, the upper part of the elastic inner cylinder 4 rotates to both sides about the bottom of the expansion joint 5 to return to its original state. After the upper part of the elastic inner cylinder 4 returns to its original state, it no longer holds the insulin needle, allowing the needle spirally removed from the insulin pen to fall into the elastic inner cylinder. 4. At the very bottom, this achieves the purpose of automatically collecting insulin needles. After injecting insulin into multiple patients and repeating the above steps multiple times, multiple insulin needles can be collected in the elastic inner cylinder 4. This avoids the need to manually remove the needles from the insulin pen, and also avoids the cumbersome steps of twisting off and discarding them into a designated trash can. This achieves the effect of continuously injecting insulin into different patients and quickly removing and collecting the needles. At the same time, this device is portable and compact, easy to carry, and can be placed on a nursing bed or put in a pocket for easy carrying at any time.

[0044] The insulin needle can be automatically removed by the clamping and releasing of the elastic inner cylinder 4, avoiding the problem of punctures when manually removing it, and also preventing medical staff or patients from coming into contact with residual insulin and blood. It also allows for quick and contactless removal of the insulin needle.

[0045] If the upper part of the elastic inner cylinder 4 needs to be moved into the squeezing groove 3 for closing, the switch button 15 can be pressed again to make the motor 14 rotate in the opposite direction. This will drive the elastic inner cylinder 4 to rotate again through the base 7. Under the action of the threaded connection between the outer shell 1 and the elastic inner cylinder 4, and the action of the spring 11, the elastic inner cylinder 4 will gradually rotate and move upward, gradually approaching the squeezing groove 3. This will cause the squeezing groove 3 to squeeze the elastic inner cylinder 4 to deform and move closer to each other. At this time, the next insulin needle can be removed and collected through the above steps.

[0046] Once the elastic inner cylinder 4 is full of insulin needles, the operator inverts the entire device so that the bottom shell 12 faces upwards and the top shell 16 faces downwards. The operator then holds the outer shell 1 with one hand and the bottom shell 12 with the other, manually rotating the bottom shell 12 to remove it from the outer shell 1. The bottom shell 12 also causes the base 7 to detach from the elastic inner cylinder 4. The operator then holds the outer shell 1 to the needle collection bin and pours the insulin needles out from where the bottom shell 12 is installed. This achieves the purpose of collecting multiple insulin needles in a centralized manner and avoids hand contact with the insulin needles. This allows for the unified disposal of insulin needles after multiple patients have received insulin injections.

[0047] If the sponge 19 is to be replaced, the positioning pin 22 can be pulled out from the socket 21 so that the positioning pin 22 is no longer inserted into the sponge 19, thus ending the fixation of the sponge 19. At this time, the operator manually removes the sponge 19, replaces it with a new sponge 19, and inserts the positioning pin 22 into the socket 21 again, while inserting it into the sponge 19 to fix it in the top shell 16.

[0048] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic insulin needle mount and demount device, characterized in that, Include: The shell (1): Expansion slot (2), open in the lower wall of the shell (1); Extrusion groove (3), open in the upper wall of the shell (1); Elastic inner tube (4), threaded connection in the shell (1), the upper part of the elastic inner tube (4) is provided with expansion joint (5); Rubber pad (6), symmetrically fixed connection in the upper inner ring surface of the elastic inner tube (4), the rubber pad (6) is not less than two.

2. An automatic insulin needle remover according to claim 1, characterized in that: The lower part of the elastic inner tube (4) is provided with a bottom support (7), the inner center of the bottom support (7) is fixedly connected with a cross beam (8), the cross beam (8) is matched with the bottom notch of the elastic inner tube (4), the bottom of the bottom support (7) is fixedly connected with a sliding pipe (9), the sliding pipe (9) is slidably connected with a slide rod (10) on the upper limit, the sliding pipe (9) and the slide rod (10) are externally provided with a spring (11), the lower end of the shell (1) is threadedly connected with a bottom shell (12), the middle of the bottom shell (12) is fixedly connected with a partition plate (13), the inner bottom of the bottom shell (12) is fixedly connected with a motor (14), the output shaft of the motor (14) is fixedly connected with the slide rod (10), the bottom shell (12) is externally provided with a switch button (15).

3. An automatic insulin needle remover according to claim 2, characterized in that: The upper end of the shell (1) is provided with a top shell (16), the upper cavity of the top shell (16) is fixedly connected with a partition plate (17), a plurality of overflow ports (18) are equidistantly arranged on the partition plate (17), a sponge (19) is arranged on the inner surface of the top shell (16), a liquid inlet (20) is arranged on the top of the top shell (16), a plurality of plug-in holes (21) are equidistantly arranged on the top of the top shell (16), a positioning needle (22) is inserted into the plug-in hole (21).

4. An automatic insulin needle remover according to claim 3, characterized in that: The outer diameter of the bottom support (7) is matched with the inner diameter of the shell (1), the outer diameter of the elastic inner tube (4) is matched with the inner diameter of the bottom support (7), the sliding pipe (9) and the slide rod (10), the spring (11) are located in the bottom shell (12), the lower end of the spring (11) abuts against the partition plate (13), a hole is arranged in the middle of the partition plate (13), which can be passed through by the slide rod (10).

5. An automatic insulin needle remover according to claim 4, characterized in that: The overflow port (18) penetrates the partition plate (17), the plug-in hole (21) corresponds to the sponge (19).