Microwave ablation needle in-vitro fixing device

Abstract

The utility model relates to the technical field of microwave ablation, in particular to an in vitro fixing device for a microwave ablation needle, which comprises a first column casing, a second column casing, a third column casing, a fourth column casing, a transparent adhesive tape and an isolation tearing film, the bottom end of the first column casing is fixedly connected with the transparent adhesive tape, the transparent adhesive tape is connected with the isolation tearing film, and the isolation tearing film is connected with the second column casing. A second column casing is arranged on one side of the first column casing, a third column casing is rotationally arranged on the outer side of one end of the second column casing in a sleeving mode, the third column casing is in threaded connection with the first column casing, the first column casing is fixed to the outside of a patient through a transparent adhesive tape, a microwave ablation needle sequentially penetrates through the second column casing and the first column casing and is placed into the human body, and then the fourth column casing is screwed. The fourth column barrel extrudes the tail ends of the elastic pieces to be close to each other, the two clamping blocks can clamp and fix the microwave ablation needle body, then the third column barrel is screwed, the third column barrel is in threaded fit with the first column barrel, the microwave ablation needle can be positioned, operation is easy and fast, and enough support can be provided for the microwave ablation needle.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave ablation, in particular to an in vitro fixing device for a microwave ablation needle. Background Art

[0002] Microwave ablation needle is a product for treating tumors with microwave thermal coagulation. It uses ultrasound or CT positioning, percutaneously punctures the lesion site, and rapidly heats up through the microwave radiation generated by the connected device, causing the tumor tissue in the area to coagulate, degenerate, and permanently die, forming a spherical coagulation necrosis area with clear boundaries, achieving the purpose of inactivating cancerous tissue in situ. Microwave ablation has the characteristics of small trauma, no toxic side effects, low complications, and fast recovery. It has been unanimously praised by tumor experts in recent years.

[0003] However, a microwave ablation needle generally consists of a needle part and a handle part, and the handle is heavier than the needle part. When the needle punctures human tissue, there is no object to support it, which will cause the ablation needle to shake, causing pain or even body damage to the patient. At the same time, the doctor also needs to perform secondary positioning before continuing to work, which increases the difficulty of operation and brings unnecessary trouble. For this reason, the utility model provides an extracorporeal fixation device for a microwave ablation needle to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an extracorporeal fixation device for a microwave ablation needle, which solves the problem that when the ablation needle punctures human tissue, there is no object to support it, which will cause the ablation needle to shake, thereby causing pain or even body damage to the patient. At the same time, the doctor also needs to perform secondary positioning before continuing to work, which increases the difficulty of operation and brings unnecessary troublesome technical problems.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A microwave ablation needle extracorporeal fixing device comprises a first column barrel, a second column barrel, a third column barrel, a fourth column barrel, a transparent adhesive tape and an isolation tear film, wherein the bottom end of the first column barrel is fixedly connected to a transparent adhesive tape, the transparent adhesive tape is connected to an isolation tear film, a second column barrel is arranged on one side of the first column barrel, a third column barrel is rotatably sleeved on the outer side of one end of the second column barrel, the third column barrel is threadedly connected to the first column barrel, and the fourth column barrel is threadedly connected to the outer side of the other end of the second column barrel, wherein both sides of the second column barrel are provided with notches, one side of the notches is fixedly connected to a spring sheet, the spring sheet is arranged to be inclined outward, and a clamping block is fixedly connected to the end thereof.

[0007] Beneficial effects: The microwave ablation needle extracorporeal fixing device uses a transparent adhesive tape to fix the first column barrel outside the patient's body. After the microwave ablation needle passes through the second column barrel and the first column barrel in sequence and is placed into the human body, the fourth column barrel is screwed to squeeze the ends of the spring sheets close to each other. The two clamps can clamp and fix the microwave ablation needle body, and then the third column barrel is screwed to make the third column barrel and the first column barrel threadably cooperate, so that the microwave ablation needle can be positioned. The operation is simple and quick, and sufficient support can be provided for the microwave ablation needle, so that medical staff can free their hands, which is conducive to the smooth progress of the operation.

[0008] Furthermore, a microwave ablation needle body is clamped and fixed between the two clamping blocks, and arc grooves are arranged on adjacent sides of the two clamping blocks.

[0009] Furthermore, a circular hole is provided in the middle of the transparent adhesive tape corresponding to the hollow part of the first column, and the transparent adhesive tape is bonded to the isolation tear film, and the two can be torn off and separated.

[0010] Furthermore, the first column barrel, the second column barrel, the third column barrel and the fourth column barrel are all made of transparent plastic material.

[0011] Furthermore, the isolation tear film is adapted to the transparent adhesive tape, and a protrusion is provided on its edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a side sectional view of an extracorporeal fixation device for a microwave ablation needle according to the utility model;

[0013] Figure 2 The utility model is a microwave ablation needle external fixation device Figure 1 A magnified view of the structure at A;

[0014] Figure 3 This is a structural disassembly diagram of a microwave ablation needle extracorporeal fixing device of the utility model;

[0015] Figure 4 It is a top cross-sectional view of an extracorporeal fixation device for a microwave ablation needle according to the utility model.

[0016] Figure numerals: 1, first column barrel; 2, second column barrel; 21, notch; 22, spring piece; 23, clamping block; 3, third column barrel; 4, fourth column barrel; 5, transparent adhesive tape; 6, isolation tear film; 61, protrusion. DETAILED DESCRIPTION

[0017] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0018] See Figures 1 to 4 As shown, a microwave ablation needle extracorporeal fixing device comprises a first column barrel 1, a second column barrel 2, a third column barrel 3, a fourth column barrel 4, a transparent adhesive tape 5 and an isolation tear film 6, wherein the first column barrel 1, the second column barrel 2, the third column barrel 3, and the fourth column barrel 4 are all made of transparent plastic materials;

[0019] Specifically, it is convenient to insert a microwave ablation needle into a patient's body, and the manufacturing cost is low.

[0020] Furthermore, a transparent adhesive tape 5 is fixedly connected to the bottom end of the first column 1, a circular hole is opened in the middle of the transparent adhesive tape 5 corresponding to the hollow part of the first column 1, and the transparent adhesive tape 5 is bonded to the isolation tear film 6, and the two can be torn off and separated;

[0021] Specifically, the isolation tear film 6 is torn off, and the transparent adhesive tape 5 can be attached to the human skin, and the circular hole should be directly opposite to the insertion wound of the ablation needle.

[0022] Furthermore, the transparent adhesive tape 5 is connected with an isolation tear film 6, the isolation tear film 6 is adapted to the transparent adhesive tape 5, and a protrusion 61 is provided on its edge;

[0023] Specifically, the isolation tear film 6 can be easily torn open by pinching the protruding portion 61 .

[0024] Furthermore, a second column 2 is provided on one side of the first column 1, a third column 3 is rotatably sleeved on the outer side of one end of the second column 2, the third column 3 is threadedly connected to the first column 1, and a fourth column 4 is threadedly connected to the outer side of the other end of the second column 2;

[0025] Specifically, the third column barrel 3 is screwed so that the third column barrel 3 is threadably matched with the first column barrel 1 , thereby connecting the second column barrel 2 and the first column barrel 1 into an integrated structure.

[0026] Furthermore, both sides of the second column 2 are provided with notches 21, one side of the notches 21 is fixedly connected with a spring sheet 22, the spring sheet 22 is tilted outward, and a clamping block 23 is fixedly connected at its end, a microwave ablation needle body is clamped and fixed between the two clamping blocks 23, and the adjacent sides of the two clamping blocks 23 are provided with arc grooves;

[0027] Specifically, by screwing the fourth column barrel 4, the fourth column barrel 4 can squeeze the inclined deformation of the spring piece 22, and the arc groove can fit the needle body structure of the microwave ablation needle to increase the contact area, which can increase the friction and improve the positioning effect. It is worth noting that the clamping block 23 is made of rubber material.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A microwave ablation needle extracorporeal fixation device, characterized in that: The invention comprises a first column tube (1), a second column tube (2), a third column tube (3), a fourth column tube (4), a transparent adhesive tape (5) and an isolating tear film (6), wherein the bottom end of the first column tube (1) is fixedly connected with the transparent adhesive tape (5), the transparent adhesive tape (5) is connected with the isolating tear film (6), a second column tube (2) is arranged on one side of the first column tube (1), a third column tube (3) is rotatably sleeved on the outer side of one end of the second column tube (2), the third column tube (3) is threadedly connected with the first column tube (1), and the outer side of the other end of the second column tube (2) is threadedly connected with the fourth column tube (4), wherein both sides of the second column tube (2) are provided with a notch (21), one side of the notch (21) is fixedly connected with a spring sheet (22), the spring sheet (22) is arranged to be inclined outwards, and a clamping block (23) is fixedly connected at its end.

2. The microwave ablation needle extracorporeal fixation device according to claim 1, characterized in that: A microwave ablation needle body is clamped and fixed between the two clamping blocks (23), and arc grooves are provided on adjacent sides of the two clamping blocks (23).

3. The microwave ablation needle in vitro fixing device according to claim 1, characterized in that: A circular hole is provided in the middle of the transparent adhesive tape (5) corresponding to the hollow part of the first column (1), and the transparent adhesive tape (5) is bonded to the isolation tear film (6), and the two can be torn off and separated.

4. The microwave ablation needle extracorporeal fixation device according to claim 1, characterized in that: The first column barrel (1), the second column barrel (2), the third column barrel (3) and the fourth column barrel (4) are all made of transparent plastic material.

5. The microwave ablation needle in vitro fixing device according to claim 1, characterized in that: The isolation tear film (6) is matched with the transparent adhesive tape (5), and a protrusion (61) is provided on the edge of the isolation tear film.

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