Needle head inserting and pulling device

Abstract

The utility model relates to the technical field of medical instruments, and provides a needle head inserting and pulling device aiming at the problems that a needle head is not easy to clamp and the needle inserting operation is inconvenient in the existing needle head processing device, which comprises a pair of scissor arms hinged through a rotating shaft, clamping assemblies are arranged at the stress ends of the pair of scissor arms so that a needle can be conveniently clamped, handles are arranged at the force application ends of the pair of scissor arms so that the pair of scissor arms can be conveniently held and applied with force. The scissors further comprise a fixing assembly, the fixing assembly comprises a fixing ring and an elastic ring, the outer wall face of the fixing ring is detachably connected with the surface plane of the stress end of one scissor arm, the fixing ring and the scissor arms are arranged in an included angle mode, and the elastic ring is embedded in the inner wall face of the fixing ring. By holding the device, the needle can penetrate through the elastic ring, and then the elastic ring can wrap the needle tightly to prevent the needle from sliding and falling, so that the needle can be clamped and applied with force conveniently, the needle can be inserted and pulled out conveniently, the workload is reduced, and medical staff can be prevented from being punctured by the needle.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a needle insertion and extraction device. Background Art

[0002] Some syringes need to be installed with disposable needles before use, and the needles of syringes and infusion sets need to be removed and placed in a sharps box. Existing needles are generally unscrewed or installed manually. When the needle is connected by interference fit or material elasticity, the connection force is sometimes large and difficult to pull out, and the needle needs to be rotated forcefully. Medical staff are busy at work, and a large number of needle insertion and removal operations will cause redness and swelling of the hands, and medical staff are easily pricked by needles in the process. Needlestick injuries are one of the serious occupational hazards faced by medical workers today, and special devices need to be designed and used to avoid needlestick injuries when the needle is inserted and removed.

[0003] The patent with publication number CN215083513U provides a medical anti-needlestick processor. When medical staff want to remove the needle, they can complete the current operation by clamping the first opening module and the second opening module. The inner sides of the first opening module and the second opening module are both provided with serrated textures, which increases the friction and facilitates operation. However, the device only clamps and removes the needle by increasing the friction through the serrated texture. There are many types of needles, and different needles have different thicknesses. Thicker needles require greater clamping force. If the clamping force applied is insufficient, the clamping is unstable and can easily injure the operator. The medical anti-needlestick processor still has the problem that the needle is not easy to clamp, and it is inconvenient to insert the needle.

[0004] Therefore, there is an urgent need to provide a needle insertion and extraction device that can clamp the needle and facilitate the insertion or extraction of the needle. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the needle is not easy to clamp and the needle insertion operation is inconvenient in the existing needle handling device. The application provides a needle insertion and extraction device, which can achieve the technical effect of clamping the needle, facilitating the insertion or extraction of the needle, and has a long service life.

[0006] The utility model is realized through the following technical scheme: a needle insertion and extraction device, comprising a pair of scissor arms, the pair of scissor arms are hinged by a rotating shaft; the force-bearing ends of the pair of scissor arms are each provided with a clamping assembly, and the force-applying ends of the pair of scissor arms are each provided with a handle; and also comprising a fixing assembly, the fixing assembly comprising a fixing ring and an elastic ring, the outer wall surface of the fixing ring is detachably connected to the surface plane of one of the force-bearing ends of the scissor arms, the fixing ring is arranged at an angle to the scissor arms, and the elastic ring is embedded in the inner wall surface of the fixing ring.

[0007] Preferably, the fixing assembly further comprises an elastic band, the surface plane of the force-bearing end of the scissor arm is further provided with a protrusion, and the fixing ring and the elastic ring are detachably connected to the protrusion via the elastic band.

[0008] Preferably, a clamping end surface of the force-bearing end of the scissor arm is provided with a card slot, and the clamping assembly comprises a card block and a plurality of sawtooth blocks arranged along the length direction of the card block, and the card slot is used to accommodate the card block.

[0009] Preferably, the force-bearing end of the scissor arm is round-headed, and the sawtooth block is trapezoidal.

[0010] Preferably, each of the pair of handles (4) is provided with an anti-slip sleeve (6), wherein a surface of one of the anti-slip sleeves (6) is provided with a needle push plate (7), and the needle push plate (7) is detachably connected to the anti-slip sleeve (6).

[0011] Preferably, the clamping end surface of the force-bearing end of the scissor arm (1) is also provided with a blade (8), and the blade (8) is detachably connected to a side of the scissor arm (1) close to the rotating shaft (2).

[0012] The technical solution of the utility model has the following beneficial effects:

[0013] (1) The clamping assembly provided at the force-bearing end of the scissor arm can conveniently clamp the needle, and the handle provided at the force-applying end of a pair of scissor arms can facilitate holding and applying force; the needle is inserted into the fixing ring and the elastic ring in the fixing assembly, and the elastic ring can wrap the needle tightly to prevent the needle from sliding or falling, which is conducive to clamping the needle and applying force, thereby facilitating the insertion and removal of the needle, reducing the workload, and preventing medical staff from direct contact with the needle, thereby preventing medical staff from being stabbed by the needle.

[0014] (2) By manually pulling up the elastic band in the fixing assembly, the elastic ring can be expanded, and then after the needle is inserted or removed, the needle can be easily loosened to separate the needle from the insertion and removal device.

[0015] (3) The friction force can be increased by using multiple sawtooth blocks in the clamping assembly, further preventing the clamped needle from slipping off, and increasing the force point for inserting and removing the needle. By arranging multiple sawtooth blocks along the length direction of the clamping block, and providing a card slot on the clamping section of the force-bearing end of the scissor arm to accommodate the card block, the card block and the sawtooth block can be easily replaced when the sawtooth block is worn, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the needle insertion and extraction device in Example 1 (when the clamping block is installed and the needle is clamped);

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the local enlargement of the A part;

[0019] Figure 3 This is a schematic diagram of the structure of the needle insertion and extraction device in Example 1 (when the card block is not installed);

[0020] Figure 4 is a schematic structural diagram of the clamping assembly in Example 1;

[0021] Figure 5 This is a schematic diagram of the structure of the fixing ring in Example 1.

[0022] Figure markings: 1-scissor arm, 11-bump, 12-slot, 2-rotating shaft, 3-clamping assembly, 31-block, 32-serrated block, 4-handle, 5-fixing assembly, 51-fixing ring, 511-groove, 52-elastic ring, 53-elastic bandage, 6-anti-slip sleeve, 7-needle push plate, 8-blade, 9-needle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] Example 1

[0027] like Figures 1 to 5 As shown, this embodiment provides a needle insertion and extraction device, including a pair of scissor arms 1 hinged by a rotating shaft 2; the force-bearing ends of the pair of scissor arms 1 are each provided with a clamping assembly 3, which can conveniently clamp the needle 9. The force-applying ends of the pair of scissor arms 1 are each provided with a handle 4, which is convenient for holding and applying force. It also includes a fixing assembly 5, which includes a fixing ring 51 and an elastic ring 52. The outer wall surface of the fixing ring 51 is welded to the surface plane of one of the force-bearing ends of the scissor arms 1. The fixing ring 51 and the scissor arms 1 are arranged at an angle, and the elastic ring 52 is embedded in the inner wall surface of the fixing ring 51. After the needle 9 can be inserted into the elastic ring 52 by holding the device, the elastic ring 52 can wrap the needle 9 tightly to prevent the needle 9 from sliding or falling, which is conducive to clamping the needle 9 and applying force, thereby facilitating the insertion and extraction of the needle 9, reducing the workload, and at the same time preventing medical staff from direct contact with the needle 9 and preventing medical staff from being stabbed by the needle 9.

[0028] The elastic ring 52 is made of a medical rubber material with good elastic deformation and antibacterial properties. A groove 511 is formed on the inner wall of the fixing ring 51, and the elastic ring 52 is embedded in the groove 511. The elastic ring 52 can be replaced, thereby extending the service life of the device.

[0029] In this embodiment, the fixing assembly 5 further includes an elastic band 53, and the surface plane of the force-bearing end of the scissor arm 1 is further provided with a bump 11, and the fixing ring 51 and the elastic ring 52 are bound to the bump 11 through the elastic band 53. Specifically, the bump 11 is welded to the surface plane of the force-bearing end of the scissor arm 1, one end of the elastic band 53 is bound to the fixing ring 51 and the elastic ring 52, and the other end of the elastic band 53 is bound to the bump 11. After the needle 9 is inserted or removed, the elastic ring 52 can be expanded by manually pulling the elastic band 53, and then the needle 9 can be easily loosened, so that the needle 9 can be separated from the device.

[0030] In this embodiment, a clamping end surface of the force-bearing end of the scissor arm 1 is provided with a card slot 12, and the clamping assembly 3 includes a card block 31 and a plurality of sawtooth blocks 32 arranged along the length direction of the card block 31. The sawtooth blocks 32 are welded to the side wall surface of the card block 31. The plurality of sawtooth blocks 32 in the clamping assembly 3 can increase the friction force, further prevent the clamped needle 9 from slipping, and increase the force point for inserting and removing the needle 9. The card slot 12 is used to accommodate the card block 31. The size of the card block 31 is slightly larger than the size of the card slot 12. When the card block 31 is inserted into the card slot 12, the card block 31 can be clamped in the card slot 12 due to the pressure or friction of the interference fit. When the sawtooth block 32 is worn, the card block 31 and the sawtooth block 32 can be easily replaced, thereby extending the service life of the device.

[0031] In this embodiment, the force-bearing end of the scissor arm 1 is rounded, which is safe and avoids stabbing; the sawtooth block 32 is trapezoidal, which reduces the sharpness of the sawtooth block 32 and prevents excessive force from cutting off the needle 9 and making it difficult to pull out the remaining needle 9. The scissor arm 1, the sawtooth block 32 and the clamping block 31 are all made of antibacterial stainless steel.

[0032] In this embodiment, a pair of handles 4 are both covered with anti-slip sleeves 6, which are convenient for holding; a pin push plate 7 is disposed on the surface of one of the anti-slip sleeves 6, and the pin push plate 7 is provided with a through hole, which is buckled with a convex button provided on the anti-slip sleeve 6. When the resistance encountered by the insertion pin is large, the pin push plate 7 can be taken out to press the tail end of the needle head 9 to assist the insertion of the pin.

[0033] In this embodiment, a blade 8 is also provided on the clamping end surface of the force-bearing end of the scissor arm 1. The blade 8 is welded to the side of the scissor arm 1 close to the rotating shaft 2. The setting of the blade 8 enables the needle insertion and extraction device to also have a shearing function, which can facilitate shearing of infusion tubes, etc., thereby increasing the use of the device.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A needle insertion and extraction device, characterized in that: It comprises a pair of scissor arms (1), wherein the pair of scissor arms (1) are hingedly connected via a rotating shaft (2); A clamping assembly (3) is provided at the force-bearing ends of the pair of scissor arms (1), and a handle (4) is provided at the force-applying ends of the pair of scissor arms (1); The invention also comprises a fixing assembly (5), wherein the fixing assembly (5) comprises a fixing ring (51) and an elastic ring (52), wherein the outer wall surface of the fixing ring (51) is detachably connected to the surface plane of one of the force-bearing ends of the scissor arms (1), the fixing ring (51) and the scissor arm (1) are arranged at an angle, and the elastic ring (52) is embedded in the inner wall surface of the fixing ring (51).

2. The needle insertion and extraction device according to claim 1, characterized in that: The fixing assembly (5) further comprises an elastic band (53), the surface plane of the force-bearing end of the scissor arm (1) is further provided with a protrusion (11), and the fixing ring (51) and the elastic ring (52) are detachably connected to the protrusion (11) via the elastic band (53).

3. The needle insertion and extraction device according to claim 1, characterized in that: A clamping end surface of the force-bearing end of the scissor arm (1) is provided with a clamping groove (12); the clamping assembly (3) comprises a clamping block (31) and a plurality of sawtooth blocks (32) arranged along the length direction of the clamping block (31); and the clamping groove (12) is used to accommodate the clamping block (31).

4. The needle insertion and extraction device according to claim 3, characterized in that: The force-bearing end of the scissor arm (1) is round-headed, and the sawtooth block (32) is trapezoidal.

5. The needle insertion and extraction device according to any one of claims 1 to 4, characterized in that: A pair of the handles (4) are both covered with anti-slip sleeves (6), and a needle push plate (7) is disposed on the surface of one of the anti-slip sleeves (6). The needle push plate (7) is detachably connected to the anti-slip sleeve (6).

6. The needle insertion and extraction device according to claim 1, characterized in that: The clamping end surface of the force-bearing end of the scissor arm (1) is also provided with a blade (8), and the blade (8) is detachably connected to a side of the scissor arm (1) close to the rotating shaft (2).

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