Puncture needle for suction sclerotherapy

Abstract

The utility model discloses a puncture needle for aspiration sclerotherapy, which relates to the technical field of medical instruments and is characterized in that the puncture needle comprises a needle body and a needle core, a plurality of guide grooves are arranged on the inner side wall of the needle body, one end of each guide groove connected with the needle body is provided with a through hole penetrating through the wall thickness of the guide groove, a plurality of clusters of bristles are arranged on the side wall of the needle core, and the bristles are connected with the guide grooves. The needle core is sleeved with the needle body, the ends, away from the needle core, of the bristles are sleeved with the guide groove, the needle cap is pressed down after puncturing, the needle core is fixed into the needle body through the clamping base and the clamping block, meanwhile, the bristles on the side wall of the needle core penetrate through the through hole in the side wall of the needle body through the guide groove, and the bristles extend out of the through hole. And colloid, floccules and the like near the needle body are scattered by repeatedly lifting the needle body, so that liquid in the cyst is completely extracted as much as possible, and subsequent treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to a puncture needle for suction sclerosis treatment. Background Art

[0002] At present, minimally invasive treatment of thyroid cysts is increasingly widely used. For pure cystic thyroid nodules (cystic components account for more than 90%), various guidelines unanimously recommend cyst fluid aspiration plus sclerotherapy as the preferred treatment method due to its minimally invasive, definite efficacy, and high cost-effectiveness. Factors affecting the cyst sclerosis effect include the amount of aspirated fluid, the diffusion of the sclerosant, etc. Mucinous thyroid cysts are a special type of thyroid cystic nodules. Highly viscous fluids are difficult to aspirate, which will also inhibit the diffusion of the sclerosant, greatly affecting the effect of sclerotherapy. Therefore, surgical treatment is the only option for this type of cyst in the early stages. Since then, some scholars have proposed a two-stage ethanol injection method, in which the second puncture and injection is performed 6 months after the initial injection of anhydrous alcohol, but this method requires many punctures and is time-consuming. Some practical problems are often encountered during clinical operations: first, the viscous cyst fluid has poor fluidity and is very easy to clog the needle hole, and enhanced negative pressure suction is still difficult to work; in addition, there are often accumulated flocs in the cyst, which are very easy to adhere to and wrap around the needle, but most of the existing cyst puncture instruments are made of rigid materials, with smooth outer walls and no intervention devices. It is difficult to break up the flocs by only pushing and withdrawing the syringe, which greatly limits the activity space of the needle and leaves many un-aspirated areas, making it difficult for the hardener to fully contact the cyst wall, resulting in incomplete cyst treatment.

[0003] Therefore, the utility model aims to provide a puncture needle for suction sclerosis therapy to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a puncture needle for suction sclerosis treatment. After puncture, the needle cap is pressed down, and the needle core is fixed inside the needle body by a clamping base and a clamping block. At the same time, the bristles on the side wall of the needle core pass through the through hole of the side wall of the needle body through a guide groove, so that the bristles extend out of the through hole. By moving the needle body up and down, the colloid and flocculent substances near the needle body are broken up, which is convenient for the subsequent use of a syringe to extract the liquid in the patient's cyst.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: a puncture needle for suction sclerosis therapy, comprising a needle body and a needle core, the inner wall of the needle body is provided with a plurality of guide grooves, the end of the guide groove connected to the needle body is provided with a through hole penetrating the wall thickness thereof, the side wall of the needle core is provided with a plurality of clusters of bristles, the needle core is sleeved in the needle body, and the end of the bristles away from the needle core is sleeved in the guide groove.

[0006] By adopting the above technical solution, the needle cap is pressed down after puncture, and the needle core is fixed inside the needle body through the clamping base and the clamping block. At the same time, the bristles on the side wall of the needle core pass through the through hole of the side wall of the needle body through the guide groove, so that the bristles extend out of the through hole. By repeatedly pulling the needle body, the colloid and flocs near the needle body are broken up, so that the liquid in the cyst can be extracted as completely as possible, which is convenient for subsequent treatment.

[0007] The utility model is further configured as follows: a clamping base is provided at the top of the needle body, a plurality of C-shaped grooves are provided on the inner side wall of the clamping base, a needle cap is provided at the top of the needle core, a clamping block is provided at the bottom end of the needle cap, and a plurality of clamping blocks are provided on the side wall of the clamping block.

[0008] By adopting the above technical solution, the needle core and the needle body are fixed by rotating and locking the clamping block with the C-shaped groove, guiding the bristles to be fixed to a predetermined position, and preventing the needle body and the needle core from slipping when the device is used.

[0009] The utility model is further configured as follows: the through holes are evenly distributed on the horizontal plane of the needle body side wall and staggered on the vertical plane.

[0010] By adopting the above technical solution, the cyst fluid can be easily sucked out through the multiple through holes.

[0011] The utility model is further configured as follows: the outer diameter of the needle body is 1.6 mm, and the outer diameter of the needle core is 0.6 mm.

[0012] By adopting the above technical solution, the cystic fluid in the cyst is aspirated through a 16G puncture needle.

[0013] To sum up, the utility model has the following beneficial effects: the bristles on the side wall of the needle core pass through the through hole in the side wall of the needle body, and the bristles extend out of the through hole. By moving the needle body up and down, the needle core is driven to break up the colloid and flocs attached to the side wall of the needle body, so that the cystic fluid in the cyst can be extracted as completely as possible, which is convenient for subsequent treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front side view in an embodiment of the utility model;

[0015] Figure 2 is a front view and side view of the bristles passing through the through hole in the embodiment of the utility model;

[0016] Figure 3 yes Figure 2 A magnified view of middle;

[0017] Figure 4 It is a top view in an embodiment of the utility model;

[0018] Figure 5 is a front side view of the needle body in the embodiment of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the guide groove in the needle body of the embodiment of the utility model.

[0020] In the figure: 1, needle body; 2, needle core; 3, guide groove; 4, bristles; 5, clamping block; 6, clamping block; 7, clamping base; 8, needle cap; 9, through hole; 10, C-shaped groove. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-6 The utility model is described in further detail.

[0022] Embodiment: A puncture needle for suction sclerosis treatment, such as Figures 1 to 6 As shown, it includes a needle body 1 and a needle core 2. The needle body 1 is made of medical metal material, and the needle core 2 is made of medical plastic material to avoid causing damage to the patient's human tissue. The inner wall of the needle body 1 is provided with a plurality of guide grooves 3, and the guide grooves 3 are semicircular guide grooves 3. There are four guide grooves 3 in each layer, and the guide grooves 3 of each layer are arranged in a cross. The guide grooves 3 of each layer are evenly distributed in the horizontal plane and staggered in the vertical plane. One end of the guide groove 3 connected to the needle body 1 is provided with a through hole 9 penetrating the wall thickness thereof, and the side wall of the needle core 2 is provided with a plurality of clusters of bristles 4 The bristles 4 are made of medical plastic material, and the end of the bristles 4 away from the needle core 2 is sleeved in the guide groove 3, the needle core 2 is sleeved in the needle body 1, and a clamping base 7 is provided at the top of the needle body 1. The inner side wall of the clamping base 7 is provided with a plurality of C-shaped grooves 10, and a needle cap 8 is provided at the top of the needle core 2. A clamping block 6 is provided at the bottom end of the needle cap 8, and a plurality of clamping blocks 5 are provided on the side wall of the clamping block 6. The through holes 9 are evenly distributed on the horizontal plane of the side wall of the needle body 1 and staggered on the vertical plane. The outer diameter of the needle body 1 is 1.6 mm, and the outer diameter of the needle core 2 is 0.6 mm.

[0023] In this embodiment, the needle cap 8 is rotated so that the clamping base 7 and the clamping block 6 fix the needle core 2 in the needle body 1. At this time, the clamping block 5 on the clamping block 6 is clamped in the upper arc-shaped clamping groove on the C-shaped groove 10 to prevent the needle core 2 from slipping off during puncture. The needle core 2 is fixed on the needle body 1 and then puncture is performed. After the puncture is completed, the needle cap 8 is rotated along the angle of the C-shaped groove 10 so that the clamping block 5 is clamped in the lower arc-shaped clamping groove on the C-shaped groove 10. At the same time, the bristles 4 on the side wall of the needle core 2 pass through the through hole 9 on the side wall of the needle body 1 through the guide groove 3, so that the bristles 4 extend out of the through hole 9. The medical staff repeatedly pulls up the needle body 1 so that the bristles 4 on the side wall of the needle core 2 break up the colloid and flocs near the needle body 1. After the needle core 2 is pulled out, the cystic fluid is extracted by inserting the pointed end of the syringe into the top of the needle body 1.

[0024] Working principle:

[0025] When using the puncture needle for suction sclerosis treatment of the utility model, the needle cap is rotated so that the clamping base and the clamping block fix the needle core in the needle body. At this time, the clamping block on the clamping block is clamped in the upper arc-shaped clamping groove on the C-shaped groove to prevent the needle core from slipping off during puncture. After the needle core is fixed on the needle body, puncture is performed. After the puncture is completed, the needle cap is rotated along the angle of the C-shaped groove to make the clamping block clamped in the lower arc-shaped clamping groove on the C-shaped groove to prevent the needle body and the needle core from slipping off when using the device. At this time, the bristles on the side wall of the needle core pass through the through hole on the side wall of the needle body through the guide groove, so that the bristles extend out of the through hole. The medical staff repeatedly pulls up the needle body so that the bristles on the side wall of the needle core break up the colloid and flocculent materials near the needle body, and then the clamping block is pulled out of the C-shaped groove by rotating the needle cap to separate the needle body from the needle core, and then the needle tube is put into the top of the needle body to extract the cystic fluid for subsequent treatment.

[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A puncture needle for suction sclerotherapy, characterized by: The invention comprises a needle body (1) and a needle core (2), wherein the inner wall of the needle body (1) is provided with a plurality of guide grooves (3), one end of the guide groove (3) connected to the needle body (1) is provided with a through hole (9) penetrating the wall thickness thereof, and the side wall of the needle core (2) is provided with a plurality of clusters of bristles (4), the needle core (2) is sleeved in the needle body (1), and the end of the bristles (4) away from the needle core (2) is sleeved in the guide groove (3).

2. A puncture needle for suction sclerotherapy according to claim 1, characterized in that: The top end of the needle body (1) is provided with a clamping base (7), the inner side wall of the clamping base (7) is provided with a plurality of C-shaped grooves (10), the top end of the needle core (2) is provided with a needle cap (8), the bottom end of the needle cap (8) is provided with a clamping block (6), and the side wall of the clamping block (6) is provided with a plurality of clamping blocks (5).

3. The puncture needle for suction sclerotherapy according to claim 1, characterized in that: The through holes (9) are evenly distributed on the horizontal plane of the side wall of the needle body (1) and staggered on the vertical plane.

4. The puncture needle for suction sclerotherapy according to claim 1, characterized in that: The outer diameter of the needle body (1) is 1.6 mm, and the outer diameter of the needle core (2) is 0.6 mm.

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