Disposable puncture outfit

Abstract

The utility model discloses a disposable puncture outfit which comprises a catheter body and a puncture needle assembly, the puncture needle assembly is movably inserted in the catheter body, the catheter body comprises a puncture cannula, a cover body, an air injection valve, a grip, a connecting ring and a hook ring, the cover body is fixedly connected to one end of the puncture cannula, the air injection valve is arranged on the cover body, and the hook ring is arranged on the cover body. The puncture sleeve is arranged in the cover body and extends into the cover body, the multiple sets of grips are correspondingly arranged on the surface of the cover body, the connecting ring is arranged on the inner side of the cover body, anti-skid lines are arranged on the surface of the puncture sleeve, and the hook rings are adjacent to the grips. The flexible catheter has the advantages that the flexibility of softness and elastic operation is improved, and the catheter can be freely bent in cooperation with an instrument according to the inserted bendable instrument and cannot be broken.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a disposable puncture device. Background Art

[0002] The trocar is used by specialists to puncture the abdominal cavity, deliver gas to the abdominal cavity, and establish a channel for the endoscope and surgical instruments to enter the abdominal cavity from the outside during laparoscopic surgery. In simple terms, it is to establish a channel and maintain pneumoperitoneum. Disposable trocars can maintain the sharpness of the trocar, and also save the steps of sterilization, disassembly and installation, reduce hidden costs, and avoid the possibility of cross-contamination. Compared with reusable trocars, there is no converter installed, which has many advantages.

[0003] Currently, most trocars are made of hard materials, which results in poor operating flexibility during surgery and unstable tube body after puncture. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a disposable trocar with increased softness and elasticity for operational flexibility. The catheter can be freely bent in accordance with the inserted bendable instrument without breaking, thereby solving the problem that most current trocars are made of hard materials, resulting in poor operational flexibility during surgery and unstable tube body after puncture.

[0005] In order to achieve the above advantages of increased softness and elasticity, the catheter can be freely bent according to the inserted bendable instrument without breaking, and the specific technical solutions adopted by the utility model are as follows:

[0006] A disposable puncture device comprises a catheter body and a puncture needle assembly, wherein the puncture needle assembly is movably inserted in the catheter body, and the catheter body comprises a puncture sleeve, a cover body, an air injection valve, a grip, a connecting ring, and a hook ring. The cover body is fixedly connected to one end of the puncture sleeve, the air injection valve is arranged on the cover body and extends to the inside of the cover body, an array of grips are respectively arranged on the surface of the cover body, the connecting ring is arranged on the inner side of the cover body, the surface of the puncture sleeve is provided with anti-slip textures, and the hook ring is adjacent to the grip.

[0007] Furthermore, the puncture needle assembly includes a cylindrical puncture cone, one end of which has an enlarged diameter to form a protrusion, a cone head is provided at the tail of the protrusion, a plurality of cut surfaces are provided on the cone head, and the cut surfaces intersect spirally to form a plurality of incisions, and the other end of the puncture cone is connected to a cone cap, which is hemispherical.

[0008] Furthermore, a buckle is provided at the connection between the protrusion and the connecting ring.

[0009] Furthermore, the puncture sleeve is a hollow tube made of soft elastic material.

[0010] Furthermore, the anti-slip lines are distributed in the middle part of the puncture sleeve.

[0011] Furthermore, the gas injection valve is equipped with a gas injection switch, and is provided with an air inlet and an air outlet, and the gas injection valve is connected to the gas source through a pipeline.

[0012] Furthermore, the inner side of the connecting ring is provided with locking grooves, and the number of the locking grooves is at least two groups.

[0013] Compared with the prior art, the utility model provides a disposable trocar, which has the following beneficial effects:

[0014] The puncture needle assembly is movably inserted into the catheter body, and the catheter body is provided with a puncture sleeve, a cover, an air injection valve, a grip, a connecting ring, and a hook ring. The surface of the puncture sleeve is provided with anti-slip patterns, and the puncture sleeve is a hollow tube made of soft elastic material. The material of the puncture sleeve is changed from hard material to soft material to increase the softness and elasticity of operation. The catheter can be freely bent according to the inserted bendable instrument, and the catheter will not break or other adverse phenomena. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the use of the utility model;

[0018] Figure 3 This is one of the structural schematic diagrams of the puncture needle assembly 2 in the present utility model;

[0019] Figure 4 This is the second structural schematic diagram of the puncture needle assembly 2 in the present utility model.

[0020] In the figure: catheter body 1, puncture needle assembly 2, puncture sleeve 3, cover body 4, gas injection valve 5, handle 6, connecting ring 7, hook ring 8, anti-slip pattern 31, puncture cone 21, protrusion 22, cone head 23, cut surface 24, incision 25, cone cap 26, locking groove 71. DETAILED DESCRIPTION

[0021] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] According to an embodiment of the utility model, a disposable puncture device is provided.

[0023] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, according to the disposable puncture device of the embodiment of the utility model, it includes a catheter body 1 and a puncture needle assembly 2, the puncture needle assembly 2 is movably inserted in the catheter body 1, the catheter body 1 includes a puncture sleeve 3, a cover body 4, an injection valve 5, a grip 6, a connecting ring 7, and a hook ring 8, the cover body 4 is fixedly connected to one end of the puncture sleeve 3, the injection valve 5 is arranged on the cover body 4, and extends to the inside of the cover body 4, the array grips 6 are respectively arranged on the surface of the cover body 4, the connecting ring 7 is arranged on the inner side of the cover body 4, the surface of the puncture sleeve 3 is provided with anti-slip lines 31, and the hook ring 8 is adjacent to the grip 6.

[0024] In one embodiment, the puncture needle assembly 2 includes a cylindrical puncture cone 21, one end of which has an enlarged diameter to form a protrusion 22, a cone head 23 is provided at the tail of the protrusion 22, a plurality of cut surfaces 24 are provided on the cone head 23, and the cut surfaces 24 are spirally intersected to form a plurality of incisions 25, and the other end of the puncture cone 21 is connected to a cone cap 26, which is hemispherical.

[0025] In one embodiment, a buckle is provided at the connection between the protrusion 22 and the connecting ring 7, so as to facilitate the connection and fixation of the puncture needle assembly 2 and the catheter body 1.

[0026] In one embodiment, the puncture cannula 3 is a hollow tube made of soft elastic material. By changing the material of the puncture cannula 3 from hard material to soft material, the softness and elasticity of the operation are increased, and the catheter can be freely bent according to the inserted bendable instrument without breaking or other undesirable phenomena.

[0027] In one embodiment, the anti-skid pattern 31 is distributed in the middle of the puncture sleeve 3. The puncture sleeve 3 is provided with the anti-skid pattern 31 to prevent slipping because it is a channel for laparoscopic surgical instruments to enter the abdominal cavity.

[0028] In one embodiment, the gas injection valve 5 is equipped with a gas injection switch, and is provided with an air inlet and an exhaust port, and the gas injection valve is connected to the gas source through a pipeline. During the operation, gas is injected into the punctured patient's cavity through the gas injection valve 5 to form pneumoperitoneum, which is convenient for the operation.

[0029] In one embodiment, the inner side of the connecting ring 7 is provided with locking grooves 71, and the number of the locking grooves 71 is at least two groups. The cooperation between the sleeve locking grooves 71 and the buckle facilitates the connection and fixation of the puncture needle assembly 2 and the catheter body 1.

[0030] Working principle: The puncture needle assembly 2 is movably inserted into the catheter body 1, and the catheter body 1 is provided with a puncture sleeve 3, a cover 4, an air injection valve 5, a handle 6, a connecting ring 7, and a hook ring 8. The surface of the puncture sleeve 3 is provided with an anti-slip pattern 31, and the puncture sleeve 3 is a hollow tube made of soft elastic material. The material of the puncture sleeve 3 is changed from hard material to soft material to increase the softness and elasticity of the operation. The catheter can be freely bent according to the inserted bendable instrument, and the catheter can cooperate with the instrument without breaking or other undesirable phenomena.

[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable puncture device, comprising a catheter body (1) and a puncture needle assembly (2), wherein the puncture needle assembly (2) is movably inserted in the catheter body (1), characterized in that: The catheter body (1) comprises a puncture sleeve (3), a cover (4), an air injection valve (5), a handle (6), a connecting ring (7), and a hook ring (8); the cover (4) is fixedly connected to one end of the puncture sleeve (3); the air injection valve (5) is arranged on the cover (4) and extends to the inside of the cover (4); the handles (6) are arranged on the surface of the cover (4) respectively; the connecting ring (7) is arranged on the inner side of the cover (4); the surface of the puncture sleeve (3) is provided with anti-slip texture (3 1), the hook ring (8) is adjacent to the handle (6), the puncture needle assembly (2) comprises a cylindrical puncture cone (21), one end of the puncture cone (21) has a larger diameter to form a protrusion (22), the tail of the protrusion (22) is provided with a cone head (23), the cone head (23) is provided with a plurality of cut surfaces (24), the cut surfaces (24) are spirally intersected to form a plurality of incisions (25), the other end of the puncture cone (21) is connected with a cone cap (26), and the cone cap (26) is hemispherical.

2. The disposable trocar according to claim 1, characterized in that: A buckle is provided at the connection between the protruding portion (22) and the connecting ring (7).

3. The disposable trocar according to claim 1, characterized in that: The puncture sleeve (3) is a hollow tube made of soft elastic material.

4. The disposable trocar according to claim 1, characterized in that: The anti-slip lines (31) are distributed in the middle part of the puncture sleeve (3).

5. The disposable trocar according to claim 1, characterized in that: The gas injection valve (5) is equipped with a gas injection switch, and is provided with a gas inlet hole and a gas outlet. The gas injection valve is connected to a gas source through a pipeline.

6. The disposable trocar according to claim 1, characterized in that: The inner side of the connecting ring (7) is provided with locking grooves (71), and the number of the locking grooves (71) is at least two groups.

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