Disposable sterile blunt-end injection needle

Abstract

The utility model discloses a disposable sterile blunt-end injection needle which comprises a needle seat, a needle tube is arranged on the needle seat, and the needle tube can be bent and can be rebounded and reset. One end, far away from the needle seat, of the needle tube is provided with a rounded-corner blunt head part, the needle tube is provided with a needle hole, the needle hole is matched with the rounded-corner blunt head part in position, the needle seat is further provided with a sheath, the needle tube is arranged in an inner cavity of the sheath, and the sheath is connected to the needle seat; the utility model has the beneficial effects that when the needle seat is connected to the injector joint, if the connection is too tight, the sheath is sleeved on the outer wall of the needle seat, and the needle seat is driven to rotate on the injector joint by rotating the sheath, so that the static friction force between the needle seat and the injector joint is broken, and the needle seat is convenient to pull out; on the basis that the needle seat is conveniently pulled out, the step can also prevent the medical staff from being in contact with the needle tube, and the used needle tube can be prevented from polluting the medical staff.

Description

Technical Field

[0001] The utility model relates to a disposable sterile blunt-end injection needle. Background Art

[0002] Sterile blunt-end injection needles, generally refers to an injection needle designed for medical purposes, which has a blunt tip instead of the sharp tip of a traditional injection needle. Since blunt needles reduce puncture injuries, they provide a safer option in certain medical procedures, especially when operating on injury-sensitive areas. In addition, they can also improve the efficiency of medical operations because they may reduce the risk of bleeding and other complications. It combines the convenience of disposable use, the safety of sterility, and the characteristics of a blunt tip to adapt to specific medical needs and improve patient safety and comfort.

[0003] However, during use, the needle seat is usually tightly fitted with the syringe connector. When the needle seat needs to be separated from the syringe connector, the operator may need to apply additional force, which may not only cause the needle to accidentally injure the operator and increase the risk of occupational exposure, but also may cause pollution to the environment. In view of this, the utility model proposes a disposable sterile blunt-end injection needle to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a disposable sterile blunt-end injection needle to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A disposable sterile blunt-end injection needle comprises a needle seat, on which a needle tube is arranged, and the needle tube can be bent and rebound to reset;

[0007] A rounded blunt head is provided at one end of the needle tube away from the needle seat, a needle hole is opened on the needle tube, the needle hole matches the position of the rounded blunt head, a sheath is also provided on the needle seat, the needle tube is arranged in the inner cavity of the sheath, the sheath is connected to the needle seat, the sheath drives the needle seat to rotate about the axis of the needle tube, so that the needle seat is separated from the syringe connector.

[0008] As an improvement of the above technical solution, a plurality of groups of positioning grooves are provided on the needle seat;

[0009] The sheath is provided with a connecting tube, and the inner wall of the connecting tube is provided with a plurality of groups of positioning convex strips, and the positions and sizes of the plurality of groups of positioning convex strips match the positions and sizes of the plurality of groups of positioning grooves.

[0010] As an improvement of the above technical solution, a protective tube is sleeved on the outer wall of the connecting tube, and the needle seat is arranged in the protective tube.

[0011] As an improvement of the above technical solution, the sheath is further provided with a protection tube, and the protection tube is connected to the connecting tube;

[0012] The outer wall of the protection tube is provided with a plurality of groups of toggle plates.

[0013] As an improvement of the above technical solution, a connecting ring is sleeved on the outer wall of the connecting pipe, and the protective tube is in contact with the connecting ring;

[0014] The inner diameter of the connecting tube is larger than the inner diameter of the protective tube, the connecting tube is matched with the needle seat, and the connecting ring is provided with a weight-reducing groove.

[0015] As an improvement of the above technical solution, a protrusion block is arranged in the protective tube, and a plurality of groups of the protrusion blocks are arranged in a ring array;

[0016] The protruding block contacts the needle seat and pushes the needle seat into the inner cavity of the connecting tube.

[0017] As an improvement of the above technical solution, the distance between the pinhole and the rounded blunt head is 0.8-2.0 mm;

[0018] The inner diameter of the needle tube is 0.235-1.110 mm, the outer diameter of the needle tube is 0.07-0.15 mm larger than the inner diameter, the length of the needle tube 22 is 25.00-90.00 m, and the needle tube is reduced by 10 mm for each specification.

[0019] As an improvement of the above technical solution, the needle tube is made of elastic material, and the bending angle of the needle tube is between 0-90°.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] When the needle seat is connected to the syringe connector, if the connection is too tight, the sheath is placed on the outer wall of the needle seat, and the needle seat is driven to rotate on the syringe connector by rotating the sheath, thereby breaking the static friction between the needle seat and the syringe connector, making it easier to pull out the needle seat. While making it easier to pull out the needle seat, this step can also prevent medical staff from contacting the needle tube, thereby preventing used needle tubes from contaminating medical staff, and also preventing the syringe connector from being damaged when subjected to direct strong pulling force, affecting subsequent recycling processing. In addition, the bendable and resilient properties of the needle tube enable the needle tube to adapt to injection requirements at different angles during use, thereby improving operational flexibility and overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2It is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the sheath of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the needle holder of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the protective tube of the utility model;

[0027] Figure 6 It is a side view of the protective tube of the utility model;

[0028] Figure 7 It is a side view of the utility model;

[0029] Figure 8 For this utility model Figure 7 Sectional view of AA in the middle;

[0030] Fig. 9 For this utility model Fig. 9 Middle section view.

[0031] In the figure: 10, protective tube; 11, raised block; 20, needle seat; 21, positioning groove; 22, needle tube; 23, needle hole; 24, rounded blunt head; 30, sheath; 31, positioning convex strip; 32, connecting tube; 33, connecting ring; 331, weight reduction groove; 34, protective tube; 35, toggle plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example:

[0034] like Figure 1-9 As shown, this embodiment provides a disposable sterile blunt-end injection needle, comprising a needle seat 20, on which a needle tube 22 is disposed, and the needle tube 22 can be bent and rebound to reset;

[0035] A rounded blunt head 24 is provided at one end of the needle tube 22 away from the needle seat 20, and a needle hole 23 is opened on the needle tube 22, and the position of the needle hole 23 matches the rounded blunt head 24. A sheath 30 is also provided on the needle seat 20, and the needle tube 22 is arranged in the inner cavity of the sheath 30, and the sheath 30 is connected to the needle seat 20. The sheath 30 drives the needle seat 20 to rotate about the axis of the needle tube 22, so that the needle seat 20 is separated from the syringe connector.

[0036] In this case, the connection between the needle seat 20 and the syringe adopts an interference fit design to ensure that the needle seat 20 will not accidentally detach from the syringe connector during use; at the same time, the inner cavity size of the syringe connector matches that of the needle seat 20 to ensure a close fit between them, avoiding the formation of excess cavity in the needle seat 20, resulting in residual injection liquid.

[0037] In the present embodiment, when the needle seat 20 is connected to the syringe connector, if the connection is too tight, the sheath 30 is sleeved on the outer wall of the needle seat 20, and the sheath 30 is rotated to drive the needle seat 20 to rotate on the syringe connector, thereby breaking the static friction between the needle seat 20 and the syringe connector, making it easier to pull out the needle seat 20. On the basis of making it easier to pull out the needle seat 20, this step can also prevent medical staff from contacting the needle tube 22, and can prevent the used needle tube 22 from contaminating the medical staff. It can also prevent the syringe connector from being damaged when subjected to direct strong pulling force, affecting the subsequent recycling process. In addition, the bendable and resilient characteristics of the needle tube 22 enable the needle tube 22 to adapt to injection requirements at different angles during use, thereby improving the flexibility of operation and the overall practicality.

[0038] Specifically, the needle seat 20 is provided with a plurality of positioning grooves 21;

[0039] The sheath 30 is provided with a connecting tube 32 , and the inner wall of the connecting tube 32 is provided with a plurality of groups of positioning ridges 31 , and the positions and sizes of the plurality of groups of positioning ridges 31 match the positions and sizes of the plurality of groups of positioning grooves 21 .

[0040] In this embodiment, the coordination between the multiple groups of positioning convex strips 31 and the multiple groups of positioning grooves 21 ensures the connection stability between the sheath 30 and the needle seat 20, reduces the risk of the sheath 30 and the needle seat 20 being separated due to improper operation during transportation, and provides better force transmission when the sheath 30 is rotated to separate the needle seat 20, ensures the reliability and smoothness of the separation action, and reduces the risk of accidental injury or equipment damage caused by improper operation;

[0041] Of course, when the needle hub 20 is rotated and disengaged, the sheath 30 needs to be connected to the needle hub 20 .

[0042] Specifically, a protective tube 10 is sleeved on the outer wall of the connecting tube 32 , and the needle seat 20 is disposed inside the protective tube 10 .

[0043] In this embodiment, the protective tube 10 can improve the sealing performance and better protect the injection needle.

[0044] Specifically, the sheath 30 is further provided with a protection tube 34, and the protection tube 34 is connected to the connecting tube 32;

[0045] The outer wall of the protection tube 34 is provided with a plurality of groups of shifting plates 35 .

[0046] In this embodiment, the needle tube 22 can be protected by the protective tube 34, and the protective tube 34 can be easily moved by multiple sets of moving plates 35.

[0047] Specifically, the outer wall of the connecting pipe 32 is sleeved with a connecting ring 33, and the protective tube 10 is in contact with the connecting ring 33;

[0048] The inner diameter of the connecting tube 32 is greater than that of the protective tube 34 . The connecting tube 32 is adapted to the needle seat 20 . The connecting ring 33 is provided with a weight-reducing groove 331 .

[0049] In this embodiment, by making the inner diameter of the connecting tube 32 larger than the inner diameter of the protective tube 34 , the needle seat 20 can be prevented from excessively entering the protective tube 34 , so that the protective tube 34 and the needle tube 22 can be separated later.

[0050] Specifically, the protective tube 10 is provided with a protruding block 11, and a plurality of groups of the protruding blocks 11 are arranged in a ring array;

[0051] The protruding block 11 contacts the needle seat 20 , pushing the needle seat 20 into the inner cavity of the connecting tube 32 .

[0052] In this embodiment, when the protective tube 10 is sealed, the protective tube 10 contacts the connecting ring 33, so that the protruding block 11 contacts the needle seat 20, so that the needle seat 20 is pushed into the inner cavity of the connecting tube 32 and reaches the specified position. Fig. 9 .

[0053] Specifically, the distance between the pinhole 23 and the rounded blunt head 24 is 0.8-2.0 mm;

[0054] The inner diameter of the needle tube 22 is 0.235-1.110 mm, the outer diameter of the needle tube 22 is 0.07-0.15 mm larger than the inner diameter, the length of the needle tube 22 is 25.00-90.00 m, and the needle tube 22 is reduced by 10 mm for each specification.

[0055] In this embodiment, the needle tube 22 has multiple specifications, which can be used according to actual conditions.

[0056] Specifically, the needle tube 22 is made of elastic material, and the bending angle of the needle tube 22 is between 0-90°.

[0057] In this embodiment, the needle tube 22 made of elastic material can be bent to a proper angle according to the needs of the injection site, so that the injection needle can adapt to the injection needs of different sites and different angles, thereby improving the flexibility of medical operations;

[0058] Since the needle tube 22 can be bent, the puncture damage to the patient's skin and tissue can be reduced during subcutaneous or intramuscular injection, thereby reducing the patient's pain and discomfort;

[0059] The needle tube 22 made of elastic material is not easy to break under accidental impact or improper operation, which reduces the risk of accidental injury or medical accidents that may be caused during medical operation;

[0060] The needle tube 22 that can be bent between 0-90 degrees can help medical personnel locate the injection point more accurately, avoid mis-puncture, and ensure that the drug can enter the designated position of the human body accurately.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disposable sterile blunt-end injection needle, characterized in that: It comprises a needle seat (20), on which a needle tube (22) is arranged, and the needle tube (22) can be bent and can rebound and reset; A rounded blunt head (24) is provided at one end of the needle tube (22) away from the needle seat (20); a needle hole (23) is provided on the needle tube (22); the needle hole (23) matches the position of the rounded blunt head (24); a sheath (30) is further provided on the needle seat (20); the needle tube (22) is arranged in the inner cavity of the sheath (30); the sheath (30) is connected to the needle seat (20); the sheath (30) drives the needle seat (20) to rotate about the axis of the needle tube (22), so that the needle seat (20) is separated from the syringe connector.

2. A disposable sterile blunt-end injection needle according to claim 1, characterized in that: The needle seat (20) is provided with a plurality of groups of positioning grooves (21); The sheath (30) is provided with a connecting tube (32), and the inner wall of the connecting tube (32) is provided with a plurality of groups of positioning convex strips (31), and the positions and sizes of the plurality of groups of positioning convex strips (31) match the positions and sizes of the plurality of groups of positioning grooves (21).

3. A disposable sterile blunt-end injection needle according to claim 2, characterized in that: A protective tube (10) is sleeved on the outer wall of the connecting tube (32), and the needle seat (20) is arranged inside the protective tube (10).

4. A disposable sterile blunt-end injection needle according to claim 3, characterized in that: The sheath (30) is further provided with a protection tube (34), and the protection tube (34) is connected to the connecting tube (32); The outer wall of the protection tube (34) is provided with a plurality of groups of toggle plates (35).

5. A disposable sterile blunt-end injection needle according to claim 4, characterized in that: The outer wall of the connecting pipe (32) is sleeved with a connecting ring (33), and the protective tube (10) is in contact with the connecting ring (33); The inner diameter of the connecting tube (32) is greater than the inner diameter of the protective tube (34); the connecting tube (32) is compatible with the needle seat (20); and the connecting ring (33) is provided with a weight-reducing groove (331).

6. A disposable sterile blunt-end injection needle according to claim 3, characterized in that: A protruding block (11) is arranged inside the protective tube (10), and a plurality of groups of the protruding blocks (11) are arranged in a ring array; The protruding block (11) contacts the needle seat (20) to push the needle seat (20) into the inner cavity of the connecting tube (32).

7. A disposable sterile blunt-end injection needle according to claim 1, characterized in that: The distance between the pinhole (23) and the rounded blunt head (24) is 0.8-2.0 mm; The inner diameter of the needle tube (22) is 0.235-1.110 mm, the outer diameter of the needle tube (22) is 0.07-0.15 mm larger than the inner diameter, the length of the needle tube (22) is 25.00-90.00 m, and the needle tube (22) is reduced by 10 mm every time to form a new specification.

8. A disposable sterile blunt-end injection needle according to claim 1, characterized in that: The needle tube (22) is made of elastic material, and the bending angle of the needle tube (22) is between 0 and 90 degrees.

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