Ultra-thin wall insulin syringe

Abstract

The utility model belongs to the field of medical apparatus and instruments, specifically is super thin wall insulin injection needle tube, including the needle cap, the inside slide coupling of needle cap has super thin wall needle tube main part, the inside of needle cap is provided with the protection mechanism, the protection mechanism is used in partnership with super thin wall needle tube main part, the protection mechanism includes the protection pipe fixed mounting in the inside of needle cap, the protection pipe slide sets up in the surface of super thin wall needle tube main part, the surface of protection pipe slide sets up has the pressure plate, through setting up the protection mechanism can play the protection effect to super thin wall needle tube main part, through the compression ring to promote the baffle and the pressure plate separation to make the spring drive the pressure plate fast movement downward, make the pressure plate through connecting rod drive super thin wall needle tube main part fast movement downward, in the movement process of super thin wall needle tube main part, through the protection pipe can support the surface of super thin wall needle tube main part, thereby effectively avoid super thin wall needle tube main part appear deformation and so on and influence injection stability.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to an ultra-thin-walled insulin injection needle. Background Technology

[0002] An insulin injector is a specialized injection device shaped like a pen, consisting of a needle, an injection pen, and a special insulin. The insulin injection pen simplifies the injection process and is easy for patients to use, especially those with poor eyesight. This device is portable, making it more convenient for travel and business trips. Among them, the ultra-thin-walled insulin injection needle represents a technological breakthrough in the field of diabetes treatment, demonstrating excellent performance in improving injection comfort and efficiency.

[0003] Currently, although the design of ultrathin-walled insulin injection needles is highly mature, in actual use, the ultrathin-walled design of the injection needles makes them prone to stress concentration during processing, which increases the brittleness of the needle tip and leads to insufficient needle rebound or deformation, affecting injection stability. Therefore, ultrathin-walled insulin injection needles are proposed to address the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the ultra-thin wall design of the insulin injection needle makes it prone to stress concentration during processing, leading to increased needle tip brittleness, insufficient needle rebound, or deformation, which affects injection stability. This invention proposes an ultra-thin wall insulin injection needle.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an ultra-thin-walled insulin injection needle tube, including a needle cap, an ultra-thin-walled needle tube body is slidably connected inside the needle cap, a protective mechanism is provided inside the needle cap, and the protective mechanism is used in conjunction with the ultra-thin-walled needle tube body;

[0006] The protective mechanism includes a protective tube fixedly installed inside the needle cap, the protective tube being slidably fitted onto the surface of the ultra-thin-walled needle body, a pressure plate being slidably fitted onto the surface of the protective tube, a connecting rod being fixedly connected to the inner wall of the pressure plate, one end of the connecting rod penetrating the protective tube and slidably connected to it, and the other end of the connecting rod being fixedly connected to the ultra-thin-walled needle body, a spring being fixedly installed inside the needle cap, the bottom of the spring being fixedly connected to the top of the pressure plate, a stop block being slidably connected inside the needle cap, the stop block cooperating with the pressure plate, a pressure ring penetrating the bottom of the needle cap, the surface of the pressure ring being slidably connected to the needle cap, and the pressure ring cooperating with the stop block.

[0007] Preferably, the surface of the needle cap has an opening, the surface of the stop block is slidably connected to the inner cavity of the opening, and one end of the stop block passes through the needle cap through the opening.

[0008] Preferably, a support block is fixedly installed on the inner wall of the opening, and a support groove is formed on the surface of the block, with the inner cavity of the support groove slidably connected to the surface of the support block.

[0009] Preferably, a slider is fixedly installed on the surface of the pressure ring, and a groove is formed on the inner wall of the needle cap, with the surface of the slider slidably connected to the inner cavity of the groove.

[0010] Preferably, a limiting block is fixedly installed on the surface of the slider, and a limiting groove is formed in the inner wall of the slide groove, with the inner cavity of the limiting groove slidably connected to the surface of the limiting block.

[0011] Preferably, the surface of the needle cap is threadedly connected to a limit frame, the limit frame is used in conjunction with a stop block, and a positioning block is fixedly installed on the surface of the needle cap, the positioning block is used in conjunction with the limit frame.

[0012] Preferably, an elastic baffle is fixedly installed on the inner wall of the limiting frame, and the elastic baffle is used in conjunction with the stop block.

[0013] The advantages of this utility model are:

[0014] 1. This utility model can protect the body of the ultra-thin-walled needle by setting a protective mechanism. The pressure ring pushes the stop block to separate from the pressure plate, so that the spring drives the pressure plate to move downward quickly. The pressure plate drives the body of the ultra-thin-walled needle to move downward quickly through the connecting rod. During the movement of the body of the ultra-thin-walled needle, the protective tube can support the surface of the body of the ultra-thin-walled needle, thereby effectively avoiding deformation of the body of the ultra-thin-walled needle and affecting the injection stability.

[0015] 2. By setting a pressure ring, after the pressure ring is pressed on the human skin, the needle cap is pressed towards the human body so that the pressure ring pushes the stop block. After the pressure ring is fully attached to the needle cap, the stop block will be completely separated from the pressure plate, and at the same time the needle cap will be fully attached to the human skin. This reduces the risk of deformation of the ultra-thin-walled needle body when it enters the human skin in a zero-distance manner. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the ultrathin-walled insulin injection needle of this utility model;

[0018] Figure 2This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a top view of the structure of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0021] In the diagram: 1. Needle cap; 2. Ultra-thin wall needle body; 3. Protective mechanism; 31. Protective tube; 32. Pressure plate; 33. Connecting rod; 34. Spring; 35. Opening; 3501. Support block; 3502. Support groove; 36. Stop block; 37. Pressure ring; 3701. Sliding block; 3702. Sliding groove; 3703. Limiting block; 3704. Limiting groove; 38. Limiting frame; 3801. Elastic baffle; 39. Positioning block. Detailed Implementation

[0022] 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.

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses an ultrathin-walled insulin injection needle. (See also...) Figure 1 and Figure 4 The ultra-thin-walled insulin injection needle includes a needle cap 1, an ultra-thin-walled needle body 2 that is slidably connected inside the needle cap 1, a protective mechanism 3 that is provided inside the needle cap 1, and the protective mechanism 3 is used in conjunction with the ultra-thin-walled needle body 2.

[0025] The protective mechanism 3 includes a protective tube 31 fixedly installed inside the needle cap 1. The protective tube 31 is slidably sleeved on the surface of the ultra-thin-walled needle body 2. A pressure plate 32 is slidably sleeved on the surface of the protective tube 31. A connecting rod 33 is fixedly connected to the inner wall of the pressure plate 32. One end of the connecting rod 33 passes through the protective tube 31 and is slidably connected to the protective tube 31. The other end of the connecting rod 33 is fixedly connected to the ultra-thin-walled needle body 2. A spring 34 is fixedly installed inside the needle cap 1. The bottom of the spring 34 is fixedly connected to the top of the pressure plate 32. A stop block 36 is slidably connected inside the needle cap 1. The stop block 36 works in conjunction with the pressure plate 32. A pressure ring 37 passes through the bottom of the needle cap 1. The surface of the pressure ring 37 is slidably connected to the needle cap 1. The pressure ring 37 works in conjunction with the stop block 36. When the ultra-thin-walled needle body 2 needs to be used, the top and bottom caps of the needle cap 1 are removed, and then the top of the needle cap 1 is... The syringe is connected to the insulin injector. After the insulin injector is adjusted, the pressure ring 37 is placed against the injection position, and then the needle cap 1 is pressed against the injection position, causing the pressure ring 37 to drive the stop block 36 to separate from the pressure plate 32. When the pressure ring 37 and the needle cap 1 are fully in contact, the needle cap 1 will be fully in contact with the injection position, and at the same time, the pressure ring 37 pushes the stop block 36 to separate from the pressure plate 32, causing the spring 34 to drive the pressure plate 32 to move quickly. The pressure plate 32 drives the ultra-thin-walled needle body 2 to move through the connecting rod 33, so that the ultra-thin-walled needle body 2 can be inserted into the injection position. During the insertion of the ultra-thin-walled needle body 2, the protective tube 31 can support the surface of the ultra-thin-walled needle body 2. At the same time, the zero-distance contact between the needle cap 1 and the injection position effectively avoids the deformation of the ultra-thin-walled needle body 2 when it is inserted into the injection position.

[0026] Reference Figure 1 and Figure 4 The needle cap 1 has an opening 35 on its surface. The surface of the stop block 36 is slidably connected to the inner cavity of the opening 35. One end of the stop block 36 passes through the needle cap 1 through the opening 35. The opening 35 facilitates the movement of the stop block 36 so that the stop block 36 no longer serves to support the pressure plate 32.

[0027] Reference Figure 1 and Figure 4 A support block 3501 is fixedly installed on the inner wall of the opening 35, and a support groove 3502 is opened on the surface of the stop block 36. The inner cavity of the support groove 3502 is slidably connected to the surface of the support block 3501. The slidable connection between the surface of the support block 3501 and the inner cavity of the support groove 3502 serves to stabilize the position of the stop block 36 and prevent the stop block 36 from shifting and becoming difficult to move normally.

[0028] Reference Figure 1 and Figure 4A slider 3701 is fixedly mounted on the surface of the pressure ring 37, and a groove 3702 is provided on the inner wall of the needle cap 1. The surface of the slider 3701 is slidably connected to the inner cavity of the groove 3702. By sliding the surface of the slider 3701 to the inner cavity of the groove 3702, the pressure ring 37 moves more smoothly, avoiding the pressure plate 32 from shifting and affecting the movement of the pressure plate 32.

[0029] Reference Figure 1 and Figure 4 A limiting block 3703 is fixedly installed on the surface of the slider 3701, and a limiting groove 3704 is formed in the inner wall of the slide groove 3702. The inner cavity of the limiting groove 3704 is slidably connected to the surface of the limiting block 3703. By sliding the surface of the limiting block 3703 to the inner cavity of the limiting groove 3704, the position of the slider 3701 inside the slide groove 3702 is effectively stabilized, and the slider 3701 is prevented from separating from the slide groove 3702, which would affect the position of the pressure ring 37.

[0030] Reference Figure 1 and Figure 4 The surface of the needle cap 1 is threadedly connected to a limiting frame 38, which works in conjunction with a stop block 36. A positioning block 39 is fixedly installed on the surface of the needle cap 1, which works in conjunction with the limiting frame 38. By setting the limiting frame 38, when the ultra-thin-walled needle tube body 2 is not in use, the limiting frame 38 supports the position of the stop block 36 to prevent the stop block 36 from falling off. When in use, the limiting frame 38 is moved upward and positioned by the positioning block 39 so that the groove of the limiting frame 38 is aligned with the opening 35 so that the stop block 36 can be discharged from the needle cap 1.

[0031] Reference Figure 1 and Figure 4 An elastic baffle 3801 is fixedly installed on the inner wall of the limiting frame 38. The elastic baffle 3801 works in conjunction with the stop block 36. The elastic baffle 3801 can temporarily support the stop block 36 to prevent the stop block 36 from shifting when the needle cap 1 is tilted. When the pressure ring 37 pushes the stop block 36, the elastic baffle 3801 is deformed by the compression of the stop block 36 and no longer prevents the stop block 36, so that the stop block 36 can enter the limiting frame 38.

[0032] Working principle: When the ultra-thin-walled syringe body 2 is needed, remove the top and bottom caps of the needle cap 1, then connect the top of the needle cap 1 to the insulin syringe. After the insulin syringe is adjusted, move the limiting frame 38 and make the limiting frame 38 fit with the positioning block 39 so that the groove of the limiting frame 38 is aligned with the opening 35. Then, attach the pressure ring 37 to the injection position and press the needle cap 1 towards the injection position, so that the pressure ring 37 slides inside the needle cap 1 and slides through the surface of the limiting block 3703 and the inner cavity of the limiting groove 3704 to stabilize the position of the slider 3701 inside the sliding groove 3702, so that the pressure ring 37 does not deviate when moving, so that the pressure ring 37 exerts a pressing effect on the stop block 36. The pressing of the pressure ring 37 causes the stop block 36 to slide inside the opening 35, and through the surface of the support block 3501 and the support groove 3502... The sliding connection of the inner cavity makes the stop 36 move more smoothly, avoiding the difficulty of movement caused by the stop 36 shifting. The stop 36 also squeezes the elastic baffle 3801, causing the elastic baffle 3801 to deform, so that the stop 36 can smoothly enter the limiting frame 38. When the pressure ring 37 and the needle cap 1 are fully in contact, the needle cap 1 will be fully in contact with the injection position. At the same time, the pressure ring 37 pushes the stop 36 to completely separate from the pressure plate 32, so that the spring 34 drives the pressure plate 32 to move quickly. The pressure plate 32 drives the ultra-thin-walled needle body 2 to move through the connecting rod 33, so that the ultra-thin-walled needle body 2 can be inserted into the injection position. During the insertion of the ultra-thin-walled needle body 2, the protective tube 31 can support the surface of the ultra-thin-walled needle body 2. At the same time, the zero-distance contact between the needle cap 1 and the injection position effectively avoids the deformation of the ultra-thin-walled needle body 2 when it is inserted into the injection position.

[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. An ultra-thin-walled insulin injection needle, characterized in that: Includes a needle cap (1), an ultra-thin-walled needle tube body (2) is slidably connected inside the needle cap (1), and a protective mechanism (3) is provided inside the needle cap (1), which is used in conjunction with the ultra-thin-walled needle tube body (2); The protective mechanism (3) includes a protective tube (31) fixedly installed inside the needle cap (1). The protective tube (31) is slidably sleeved on the surface of the ultra-thin-walled needle body (2). A pressure plate (32) is slidably sleeved on the surface of the protective tube (31). A connecting rod (33) is fixedly connected to the inner wall of the pressure plate (32). One end of the connecting rod (33) passes through the protective tube (31) and is slidably connected to the protective tube (31). One end of the connecting rod (33) is connected to the ultra-thin-walled needle body (2). The needle cap (1) is fixedly connected to the pressure plate (32). A spring (34) is fixedly installed inside the needle cap (1). The bottom of the spring (34) is fixedly connected to the top of the pressure plate (32). A stop block (36) is slidably connected inside the needle cap (1). The stop block (36) works in conjunction with the pressure plate (32). A pressure ring (37) passes through the bottom of the needle cap (1). The surface of the pressure ring (37) is slidably connected to the needle cap (1). The pressure ring (37) works in conjunction with the stop block (36).

2. The ultra-thin-walled insulin injection needle according to claim 1, characterized in that: The needle cap (1) has an opening (35) on its surface. The surface of the stop (36) is slidably connected to the inner cavity of the opening (35). One end of the stop (36) passes through the needle cap (1) through the opening (35).

3. The ultra-thin-walled insulin injection needle according to claim 2, characterized in that: A support block (3501) is fixedly installed on the inner wall of the opening (35), and a support groove (3502) is opened on the surface of the stop block (36). The inner cavity of the support groove (3502) is slidably connected to the surface of the support block (3501).

4. The ultrathin-walled insulin injection needle according to claim 1, characterized in that: A slider (3701) is fixedly installed on the surface of the pressure ring (37), and a groove (3702) is provided on the inner wall of the needle cap (1). The surface of the slider (3701) is slidably connected to the inner cavity of the groove (3702).

5. The ultrathin-walled insulin injection needle according to claim 4, characterized in that: A limiting block (3703) is fixedly installed on the surface of the slider (3701), and a limiting groove (3704) is formed in the inner wall of the slide (3702). The inner cavity of the limiting groove (3704) is slidably connected to the surface of the limiting block (3703).

6. The ultra-thin-walled insulin injection needle according to claim 1, characterized in that: The needle cap (1) is threadedly connected to a limiting frame (38), which works in conjunction with a stop block (36). A positioning block (39) is fixedly installed on the surface of the needle cap (1), which works in conjunction with the limiting frame (38).

7. The ultrathin-walled insulin injection needle according to claim 6, characterized in that: The inner wall of the limiting frame (38) is fixedly installed with an elastic baffle (3801), which is used in conjunction with the stop block (36).

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