Anti-acupuncture remaining needle

Abstract

An anti-acupuncture remaining needle comprises a needle seat assembly and a connector, the needle seat assembly is connected with the connector through an extension tube, the needle seat assembly comprises a needle seat and a catheter seat which are fixed together, the front section of the catheter seat is connected with a catheter, the needle seat comprises a needle seat body, a needle tube is fixed on the needle seat body, and the needle tube penetrates through the catheter seat and extends into the catheter. A certain section in the front section of the needle tube is a wide area, the outer side of the front section of the needle tube is sleeved with an anti-needling suite, and the anti-needling suite is of a barrel structure with blocking pieces at the two ends. Compared with the prior art, the utility model has the technical effects that the anti-needling sleeve is arranged, and after the needle tube is drawn out of the catheter seat, the anti-needling clamping body can be wrapped outside the needle point of the needle tube, so that medical personnel are prevented from being punctured, and the anti-needling catheter is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to an anti-acupuncture indwelling needle. Background Art

[0002] The use of intravenous catheters is a new nursing operation technology, which has gradually replaced the traditional scalp needles. Compared with the traditional scalp needles, its infusion has many advantages.

[0003] However, after use and removal of the catheter, the needle may injure the medical staff's body (such as the palm) during subsequent operations. Therefore, Chinese patent document CN114053518A discloses a needle-stick-proof intravenous catheter, which has the following characteristics: reducing the number of repeated punctures, effectively preventing the user from contacting the needle tip after the catheter is inserted into the patient's blood vessel and the needle is withdrawn from the catheter seat, preventing the user from contacting residue on the needle tip, and facilitating use by medical staff.

[0004] However, the document structure is too complex, which is not conducive to processing and inconvenient to use. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to design an anti-needlestick indwelling needle to facilitate use.

[0006] The technical solution of the utility model is specifically as follows:

[0007] The needle holder is fixed with a needle seat body, and a needle tube is fixed on the needle seat body, and the needle tube passes through the catheter seat and extends into the catheter, and a certain section of the front section of the needle tube is a wide area, and an anti-needle-stick kit is provided on the outer side of the front section of the needle tube. The anti-needle-stick kit is a barrel structure with blocking members at both ends, which includes an anti-needle-stick sleeve and an anti-needle-stick spring plate fixed together; the anti-needle-stick spring plate includes a plate body, the front end of the plate body is a front plate, and the rear end is a rear plate, a front through hole is provided on the front plate, and a rear through hole is provided on the rear plate, the wide area is located in front of the rear through hole, the maximum width of the wide area is greater than the diameter of the rear through hole, the entire needle tube including the wide area can slide in the front through hole, and the distance between the front through hole and the rear through hole is greater than the distance between the wide area and the needle tip of the needle tube.

[0008] Most of the needle stick prevention kit is located in the needle seat, and its front plate extends radially to the outside to form a buckle. The rear end of the catheter seat is provided with a clamping seat, and the buckle and the clamping seat cooperate to form a locking piece.

[0009] The wide area is the flat area "obtained by squeezing the needle tube".

[0010] The wide area of ​​the needle tube has an interference fit with the rear through hole.

[0011] Compared with the prior art, the technical effect of the present invention is that the present invention is provided with an anti-needlestick kit. After the needle tube is pulled out of the catheter seat, the anti-needlestick card body can be wrapped around the needle tip of the needle tube to prevent medical staff from being stabbed, making it convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the utility model in an assembled state.

[0013] Figure 2 The figure shows an exploded view of the needle seat assembly.

[0014] Figure 3 This is a schematic diagram of the needle tube and the needle stick protection kit.

[0015] Figure 4 It is a schematic diagram of the cooperation between the needle tube and the anti-needle puncture plate.

[0016] Figure 5 It is a schematic diagram of a needle-puncture-proof bullet plate. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.

[0018] In this manual, the direction the needle tip points to is referred to as forward, and the opposite direction is referred to as backward.

[0019] like Figure 1 A needle-stick-proof indwelling needle includes a needle seat assembly 100 and a connector 300 (depending on the situation, a two-way connector or a three-way connector can be selected, a three-way connector is shown in this figure), and the needle seat assembly 100 and the connector 300 are connected through an extension tube 200.

[0020] like Figure 1-2 The needle hub assembly 100 includes a needle hub 130 and a catheter hub 110 fixed together. The front section of the catheter hub 110 is connected to the catheter 112. The needle hub 130 includes a needle hub body 131. A needle tube 132 is fixed on the needle hub body 131. The needle tube 132 passes through the catheter hub 110 and extends into the catheter 112.

[0021] like Figure 3-5 A certain section in the front section of the needle tube 132 (the part close to the needle seat assembly 100) is a wide area 133. The wide area means that the length of this area in the radial direction is greater than the outer diameter of the needle tube. The outer side of the front section of the needle tube 132 is covered with an anti-needlepuncture kit 120. The anti-needlepuncture kit 120 is a barrel structure with blocking parts at both ends, which includes an anti-needlepuncture sleeve 121 and an anti-needlepuncture spring plate 122 fixed together.

[0022] The needle-stick-proof plate 122 includes a plate body 400, the front end of the plate body 400 is a front plate 410, and the rear end is a rear plate 420. The front plate 410 is provided with a front through hole 411, and the rear plate 420 is provided with a rear through hole 421. The wide area 133 is located in front of the rear through hole 421. The maximum width of the wide area 133 is greater than the diameter of the rear through hole 421, so that the wide area 133 cannot pass through the rear through hole 421. The entire needle tube 132 including the wide area 133 can slide in the front through hole 411. The distance between the front through hole 411 and the rear through hole 421 is greater than the distance between the wide area 133 and the needle tip of the needle tube 132 (this can ensure that the needle tip will not be exposed).

[0023] To prevent it from falling out, the majority of the needlestick protection kit 120 is located within the needle hub 130. Its front plate 410 extends radially outward to form a snap 412. A snap 113 is provided at the rear end of the catheter hub 110. The snap 412 and snap 113 form a locking mechanism. This ensures that the needlestick protection kit remains locked onto the catheter hub before the needlestick protection device is activated, preventing it from falling out.

[0024] For the convenience of processing, the wide area 133 is a flat area "obtained by squeezing the needle tube 132", and the wide area 133 does not affect the passage of the liquid medicine.

[0025] To facilitate fixation, the wide area 133 of the needle tube 132 is interference fit with the rear through hole 421 .

[0026] The front plate 410 and the rear plate 420 are the blocking parts at both ends of the needle stick protection kit 120 .

[0027] Its working principle is:

[0028] S1. Assembly: Before assembling the needle-stick protection sleeve 121 and the needle-stick protection plate 122, insert the needle tube 132 through the rear through-hole 421 and the through-hole 411, and then through the widened area 133. The needle-stick protection sleeve 121 and the needle-stick protection plate 122 are then assembled. In this way, the needle-stick protection sleeve 120 is sheathed over the needle tube 132.

[0029] S2. Before use: Fix the needle hub 130 and the catheter hub 110 again. At this time, the buckle 412 cooperates with the clamping seat 113 to form a locking member, and the needlestick prevention kit 120 will not slide in the needle hub assembly 100.

[0030] S3. When in use: Same as the prior art, no further details will be given.

[0031] S4. After use: Separate the needle hub 130 from the catheter hub 110. During the separation process, pull the needle hub 130 backward, driving the needle tube 132 to move outward synchronously. When the wide area 133 runs to the rear through hole 421, a part of the wide area 133 gradually enters the rear through hole. Due to the interference fit between the two, the anti-needlestick kit 120 and the needle tube 132 are fixed as a whole and move backward together. In this way, the needle tip of the needle tube 132 is always inside the anti-needlestick kit 120 and will not injure medical staff.

[0032] Features of this application: Stabbing paramedics

[0033] S1. The utility model is provided with an anti-needlestick kit. After the needle is pulled out of the catheter seat, the anti-needlestick card body can be wrapped around the needle tip of the needle to prevent medical staff from being stabbed, which is convenient for use.

[0034] S2. Ensure that the anti-needlestick kit is stuck on the catheter seat and will not fall off before the anti-needlestick device function is released.

[0035] For other contents, please refer to the prior art.

[0036] The above description is only the preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. An anti-needlestick indwelling needle, comprising a needle hub assembly (100) and a connector (300), wherein the needle hub assembly (100) and the connector (300) are connected via an extension tube (200), the needle hub assembly (100) comprising a needle hub (130) and a catheter hub (110) fixed together, the front section of the catheter hub (110) being connected to a catheter (112), the needle hub (130) comprising a needle hub body (131), a needle tube (132) being fixed on the needle hub body (131), the needle tube (132) passing through the catheter hub (110) and extending into the catheter (112), characterized in that: A certain section of the front section of the needle tube (132) is a wide area (133), and an anti-needle puncture kit (120) is sheathed on the outer side of the front section of the needle tube (132). The anti-needle puncture kit (120) is a barrel-shaped structure with blocking members at both ends, and includes an anti-needle puncture sleeve (121) and an anti-needle puncture spring plate (122) fixed together. The needle-puncture-proof plate (122) includes a plate body (400), the front end of the plate body (400) is a front plate (410), and the rear end is a rear plate (420), the front plate (410) is provided with a front through hole (411), and the rear plate (420) is provided with a rear through hole (421), the wide area (133) is located in front of the rear through hole (421), the maximum width of the wide area (133) is greater than the diameter of the rear through hole (421), the entire needle tube (132) including the wide area (133) can slide in the front through hole (411), and the distance between the front through hole (411) and the rear through hole (421) is greater than the distance between the wide area (133) and the needle tip of the needle tube (132).

2. The needle-proof indwelling needle according to claim 1, characterized in that: Most of the needlestick prevention kit (120) is located in the needle seat (130), and its front plate (410) extends radially outward to form a buckle (412). The rear end of the catheter seat (110) is provided with a clamping seat (113), and the buckle (412) cooperates with the clamping seat (113) to form a locking member.

3. The needle-proof indwelling needle according to claim 1, characterized in that: The wide area (133) is a flat area "obtained by squeezing the needle tube (132)".

4. The needle-stick-proof indwelling needle according to claim 1, characterized in that: The wide area (133) of the needle tube (132) is interference-fitted with the rear through hole (421).

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