Needle head of infusion apparatus

Abstract

The utility model discloses an infusion set needle, including steel needle, needle holder handle, needle seat and hose, steel needle base part is connected with needle seat and is connected with hose through needle seat, needle holder handle is sleeved on needle seat, needle holder handle can adjust direction on needle seat and limit on needle seat to realize left hand vein puncture operation and right hand vein puncture operation respectively. According to the vein puncture needle, the problem that in the prior art, a needle holding handle is deviated to the right side, so that left-hand-free medical workers are inconvenient to operate is solved, the flexibility and efficiency of overall use are improved, and it is guaranteed that the medical workers with different operation habits can efficiently and safely conduct vein puncture operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an infusion set needle. Background Technology

[0002] Intravenous infusion is an important route of medication administration in disease treatment. Disposable infusion needles are commonly used in clinical infusions, allowing for immediate removal after each use, reducing discomfort from indwelling needles and lowering the risk of infection at the puncture site and vasculitis. Commercially available disposable infusion needles are typically categorized by needle diameter and length, and mainly consist of three parts: a steel needle, a handle, and a tubing. However, because the needle bevel must be facing upwards during puncture, current handle designs are generally biased towards the right, making them more suitable for right-handed users. This design neglects the needs of left-handed healthcare workers, causing them inconvenience when performing intravenous punctures. Utility Model Content

[0003] The purpose of this invention is to provide an infusion needle that solves the inconvenience for left-handed medical staff when performing intravenous puncture procedures.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An infusion set needle includes a steel needle, a needle holder, a needle hub, and a tubing. The base of the steel needle is connected to the needle hub and is connected to the tubing through the needle hub. The needle holder is fitted with a needle holder, which can be adjusted on the needle hub and positioned on the needle hub to perform left and right vein puncture operations respectively.

[0006] Furthermore, the needle holder includes a connecting tube, with connectors integrally provided at both ends for connecting to the steel needle and the flexible tube, respectively. A needle-holding handle is sleeved on the connecting tube, and the length of the needle-holding handle is less than that of the connecting tube. A spring is built into the needle-holding handle and is sleeved on the connecting tube. A connecting protrusion is integrally provided on the needle-holding handle near the steel needle. Two grooves matching the connecting protrusion are symmetrically opened at 180° to the needle-holding handle on the connector near the steel needle. The connecting protrusion is embedded into the symmetrical grooves. When the beveled surface of the steel needle is facing upward, the needle-holding handle is located on the left and right sides respectively.

[0007] Furthermore, the steel needle, needle hub, and tubing are connected to each other using a plastic sealing method.

[0008] Furthermore, the gripping part of the needle holder is provided with an anti-slip structure.

[0009] Furthermore, the anti-slip structure is an uneven anti-slip texture or an anti-slip coating.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention solves the problem of right-handed medical staff finding it inconvenient to operate the device by setting a 180° reversible needle-holding handle on the needle holder. Whether left-handed or right-handed, the operator can quickly adjust the direction of the needle-holding handle according to their own habits, reducing inconvenience and time wastage caused by unfamiliarity with a fixed direction, improving work efficiency, accommodating medical staff with different operating habits, and enhancing the device's versatility and flexibility.

[0012] Furthermore, this utility model features a sleeved needle holder and needle handle. The spring built into the needle handle provides appropriate elasticity, ensuring the connecting protrusion is securely embedded in the groove, preventing accidental movement of the needle handle. By creating symmetrical grooves near the connector head of the steel needle, the connecting protrusion can be dislodged from one groove and the needle handle rotated to switch to the other side. Pressing the needle handle compresses the spring, pushing the connecting protrusion back into the corresponding groove, allowing free switching between the left and right sides of the needle handle. This eliminates the need for cumbersome disassembly or additional tools, greatly improving ease of use. The handle direction matches the user's dominant hand, enabling more precise control of the needle's direction and depth. For example, in medical injection scenarios, both right-handed and left-handed users can more accurately insert the needle into the target site using their more flexible hand movements, reducing deviation, increasing the success rate of the operation, and minimizing patient discomfort caused by improper operation.

[0013] Furthermore, this invention employs a plastic sealing method to connect the steel needle, needle hub, and tubing, preventing separation or loosening of the parts due to vibration or pulling during use. It also provides a better sealing effect, preventing liquid leakage and ensuring hygiene and safety during the infusion process. Additionally, an anti-slip structure is provided on the grip surface of the needle handle, effectively increasing the friction between the hand and the handle, especially when hands may become damp due to sweat. This allows medical personnel to grip the handle more firmly, significantly reducing the risk of needle slippage and ensuring operational safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A magnified view of the structure at point A in the middle;

[0016] Figure 3 for Figure 2 Internal structure diagram at point B;

[0017] In the diagram: 1-steel needle; 2-needle handle; 21-connecting protrusion; 22-spring; 3-needle seat; 31-connector; 311-groove; 32-connecting tube; 4-tube. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 , 2 As shown in Figure 3, the infusion set needle of this embodiment includes a steel needle 1, a needle holder 2, a needle hub 3, and a tubing 4. The steel needle 1, needle hub 3, and tubing 4 are connected by a plastic seal to prevent separation or loosening of the parts due to vibration or pulling during use, and also to provide a good sealing effect to prevent liquid leakage and ensure hygiene and safety during the infusion process. The base of the steel needle 1 is connected to the needle hub 3, and the needle hub 3 is connected to the tubing 4. The needle holder 2 is fitted on the needle hub 3. The needle holder 2 can be adjusted in direction on the needle hub 3 and is limited on the needle hub 3 to realize left and right vein puncture operations respectively. The needle holder 2 can be freely switched between the left and right sides to adapt to medical staff with different operating habits, improving the versatility and flexibility of the device. An anti-slip structure is provided on the surface of the gripping part of the needle handle 2. This anti-slip structure is an uneven anti-slip texture or anti-slip coating, which can effectively increase the friction between the hand and the needle handle 2. Especially when the hand may become wet due to sweat, it allows medical staff to hold the handle more firmly, greatly reducing the risk of needle slippage and ensuring the safety of operation.

[0020] The needle holder 3 includes a connecting tube 32, with connectors 31 integrally formed at both ends of the connecting tube 32, which are respectively connected to the steel needle 1 and the flexible tube 4. A needle-holding handle 2 is sleeved on the connecting tube 32, and the length of the needle-holding handle 2 is less than that of the connecting tube 32. A spring 22 is built into the needle-holding handle 2 and is sleeved on the connecting tube 32. A connecting protrusion 21 is integrally formed on the needle-holding handle 2 near the steel needle 1. Two grooves 311, which match the connecting protrusion 21, are symmetrically formed at 180° to the needle-holding handle 2 on the connector 31 near the steel needle 1. In the default configuration, when the bevel of the steel needle 1 is facing upward, the connecting protrusion 21 is embedded in the groove 311 of the connector 31, keeping the needle-holding handle 2 on the right side. At this time, the spring 22 is in a slightly compressed state, providing appropriate elasticity to ensure that the connecting protrusion 211 is firmly embedded in the groove 311, preventing the needle handle 2 from moving accidentally, ensuring that the needle handle 2 remains stable during use, avoiding safety hazards caused by unexpected changes in the position of the needle handle 2, and enhancing the stability and safety of the device. When operated by a left-handed medical staff, the connecting protrusion 21 is dislodged from the groove 311, and the needle handle 2 is rotated so that the connecting protrusion 21 is moved to another symmetrical groove 311. By pressing the needle handle 2, the spring 22 is compressed by external force, pushing the connecting protrusion 21 to re-embed in the groove 311. At this time, the needle handle 2 is located on the left side.

[0021] The device can be adjusted in direction with simple pressing and rotating actions. It not only solves the problem of the needle handle being biased to the right in the existing technology, which makes it inconvenient for left-handed medical staff to operate, but also improves the overall flexibility and efficiency of use, ensuring that medical staff with different operating habits can perform intravenous puncture operations efficiently and safely.

Claims

1. An infusion set needle, characterized in that, The utility model relates to a needle holder, which comprises a steel needle (1), a needle holder handle (2), a needle seat (3) and a hose (4), the steel needle (1) is connected with the needle seat (3) at the base, and the steel needle (1) is connected with the hose (4) through the needle seat (3), the needle seat (3) is sleeved with the needle holder handle (2), the needle holder handle (2) can be adjusted in direction on the needle seat (3) and is limited on the needle seat (3) to realize left and right hand venipuncture operation respectively. The needle seat (3) comprises a connecting pipe (32), both ends of the connecting pipe (32) are integrally provided with connecting heads (31) connected with the steel needle (1) and the hose (4) respectively, the needle holder handle (2) is sleeved on the connecting pipe (32) and the length of the needle holder handle (2) is less than that of the connecting pipe (32), the needle holder handle (2) is internally provided with a spring (22), the spring (22) is sleeved on the connecting pipe (32), the needle holder handle (2) on the side close to the steel needle (1) is integrally provided with a connecting convex (21), two concave grooves (311) matched with the connecting convex (21) are symmetrically formed on the connecting head (31) on the side close to the steel needle (1) and face the side of the needle holder handle (2) by 180 degrees, the connecting convex (21) is embedded in the symmetric concave grooves (311) respectively, and when the needle head of the steel needle (1) is inclined upward, the needle holder handle (2) is correspondingly located on the left and right sides.

2. The infusion set needle of claim 1, wherein The steel needle (1), the needle seat (3) and the hose (4) are connected in a plastic sealing mode.

3. The infusion set needle of claim 2, wherein, The holding part of the needle holder handle (2) is provided with an anti-skid structure.

4. The infusion set needle of claim 3, wherein, The anti-skid structure is uneven anti-skid texture or anti-skid coating. The anti-skid structure is uneven anti-skid texture or anti-skid coating.

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