Microwave electrode for kidney tumors

By incorporating ring rods, sleeves, and auxiliary structures into the microwave electrode, the problems of fragile and bent connections in traditional electrodes are solved, thereby improving electrode stability and therapeutic efficacy.

CN224523233UActive Publication Date: 2026-07-21NANJING DEVON MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING DEVON MEDICAL TECH CO LTD
Filing Date
2025-03-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional microwave electrodes used in the treatment of kidney tumors suffer from weak and easily cracked connections between the tube body and the tube tip, unstable connections, and the tube body is prone to bending, which affects the treatment effect and stability.

Method used

By setting a ring rod and sleeve at the bottom of the pipe head, combined with a binding rod, screw head and swivel joint, an inverted conical structure is formed to restrict the movement of the screw head; the outer sleeve and inner limiting sleeve in the auxiliary structure wrap around the connection section between the screw head and the receiving sleeve to prevent loosening and bending.

Benefits of technology

This extends the lifespan of the electrodes, ensures the stability of surgical procedures and treatment outcomes, and improves the accuracy and continuity of treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of microwave electrode for kidney tumor, the utility model relates to medical accessory field, comprising: pipe body and pipe head, the top of the pipe body is provided with pipe head, the bottom of the pipe head annularly is provided with jack, the inside of the pipe head bottom jack is inserted with ring rod, the outside of the ring rod is equipped with sleeve, the top of the sleeve is provided with spring, one side of the sleeve is provided with rotating joint part, one end of the rotating joint part is provided with binding rod, the bottom of the binding rod is provided with screw head, the bottom of the screw head is provided with receiving cylinder, the bottom of the receiving cylinder is provided with auxiliary structure, this microwave electrode for kidney tumor, by ring rod outside sleeve and spring, cooperate binding rod, screw head and rotating joint part and form inverted cone structure, limit screw head moving range, can effectively prevent pipe body and pipe head connecting place from being damaged due to extrusion from outside, prolong the service life of electrode, guarantee the stability and continuity of surgical operation.
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Description

Technical Field

[0001] This utility model relates to the field of medical accessory technology, specifically a microwave electrode for renal tumors. Background Technology

[0002] In the treatment of renal tumors, microwave ablation technology has gradually become an important treatment method due to its advantages such as being minimally invasive and highly efficient. The microwave electrode, as the core component of this technology, directly affects the treatment effect and patient prognosis.

[0003] Traditional microwave electrodes for renal tumors have several shortcomings. The connection between the electrode body and the tip is relatively fragile. In actual clinical applications, due to the frequency of surgical procedures and prolonged use, this connection is prone to cracking. Once a crack occurs, it may not only obstruct the transmission of microwave energy from the electrode, affecting the ablation effect on tumor tissue, but in severe cases, it may also render the entire electrode unusable, increasing treatment costs and patient suffering.

[0004] Existing microwave electrodes are prone to bending during use. Kidney tumor surgery is often performed in the complex internal environment of the body, and bending of the electrode may make it difficult to accurately reach the tumor site, hindering effective tumor localization and ablation, thus reducing the accuracy and effectiveness of treatment. Simultaneously, the stability of connections between electrode components is also problematic. For example, connections between the screw head and the receiving sleeve may loosen due to external vibrations during surgery, leading to electrode structural instability and affecting the surgical process.

[0005] Therefore, in view of this, we have studied and improved the existing shortcomings and proposed a microwave electrode for renal tumors. Utility Model Content

[0006] The purpose of this invention is to provide a microwave electrode for renal tumors to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a microwave electrode for renal tumors, comprising: a tube body and a tube head, wherein the tube body is provided with a tube head at its top end, and the tube head is provided with an insertion hole at its bottom end in an annular shape, wherein a ring rod is inserted into the insertion hole at the bottom end of the tube head, a sleeve is sleeved on the outside of the ring rod, a spring is provided at the top end of the sleeve, a joint is provided on one side of the sleeve, and a binding rod is provided at one end of the joint.

[0008] The bottom end of the binding rod is provided with a screw head, the bottom end of the screw head is provided with a receiving cylinder, and the bottom end of the receiving cylinder is provided with an auxiliary structure.

[0009] Furthermore, the bottom end of the binding rod is glued to the outside of the screw head, and the top end of the binding rod is adhesively bonded to the outside of the screw head.

[0010] Furthermore, the joint is composed of a rectangular part and a pivot, with the pivot extending through the upper end of the binding rod.

[0011] Furthermore, the cross-sectional structure formed between the binding rod and the tube is a right-angled triangle.

[0012] Furthermore, the outer side of the screw head is provided with an external thread structure, and the upper end of the inner side of the receiving cylinder is provided with an internal thread structure.

[0013] Furthermore, the auxiliary structure includes an inner limiting sleeve and an outer sleeve. The bottom end of the receiving cylinder is provided with an outer sleeve, and the bottom end of the inner limiting sleeve is provided with an inner limiting sleeve. The inner limiting sleeve consists of two parts, and the diameter of the upper end of the inner limiting sleeve is smaller than the diameter of the lower end of the inner limiting sleeve.

[0014] Furthermore, a perforation is provided at the middle of the inner side of the inner sleeve and the outer sleeve, and the diameter of the perforation in the outer sleeve is larger than the diameter of the outer side of the receiving cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, by setting a ring rod at the bottom of the tube head, and sleeve and spring sleeved on the outside of the ring rod, together with the inverted conical structure composed of the binding rod, screw head and rotating joint, restricts the movement range of the screw head, which can effectively prevent the connection between the tube body and the tube head from being damaged by external pressure, extend the service life of the electrode, and ensure the stability and continuity of the surgical operation;

[0017] 2. This utility model, through the outer sleeve and the inner limiting sleeve in the auxiliary structure, can wrap the connection section between the screw head and the receiving cylinder, preventing it from loosening due to external shaking; at the same time, it reduces the overall exposed part of the tube body, effectively preventing the tube body from bending during use, ensuring that the microwave electrode maintains a good working condition in complex surgical environments, and improving the treatment effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first appearance structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the second appearance structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the third appearance structure of the present utility model;

[0021] Figure 4 This utility model Figure 1 A schematic diagram of the structure 'a';

[0022] Figure 5 This utility model Figure 1A schematic diagram of the b-structure;

[0023] Figure 6 This utility model Figure 2 A schematic diagram of the c-structure.

[0024] In the diagram: 1. Tube body; 2. Auxiliary structure; 21. Internal limiting sleeve; 22. Outer sleeve; 3. Binding rod; 4. Tube head; 5. Screw head; 6. Receiving sleeve; 7. Spring; 8. Sleeve; 9. Joint; 10. Ring rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1-6 As shown, a microwave electrode for renal tumors includes: a tube body 1 and a tube head 4. The tube head 4 is provided at the top of the tube body 1, and an insertion hole is provided at the bottom of the tube head 4 in an annular shape. A ring rod 10 is inserted into the insertion hole at the bottom of the tube head 4. A sleeve 8 is sleeved on the outside of the ring rod 10. A spring 7 is provided at the top of the sleeve 8. A joint 9 is provided on one side of the sleeve 8. A binding rod 3 is provided at one end of the joint 9.

[0027] The bottom end of the binding rod 3 is provided with a screw head 5, the bottom end of the screw head 5 is provided with a receiving cylinder 6, and the bottom end of the receiving cylinder 6 is provided with an auxiliary structure 2.

[0028] As for the rest, since the connection between the tube body 1 and the tube head 4 is relatively fragile, cracks will appear at the connection between the tube body 1 and the tube head 4 after long-term use. At this time, multiple ring rods 10 are annularly glued to the bottom end of the tube head 4, and a sleeve 8 and a spring 7 are sleeved on the outside of the ring rods 10. At the same time, the spring 7 is set at the top of the sleeve 8.

[0029] The binding rod 3 has an overall structure that is tightened towards the center. One end of the binding rod 3 is connected to the outside of the screw head 5, and the screw head 5 is fitted on the upper end of the outside of the tube body 1. Therefore, the binding rod 3, the screw head 5, and the tube body 1 form an inverted cone structure. The other end of the binding rod 3 is connected to the rotating joint 9. Because the connection between the rotating joint 9 and the binding rod 3 is formed by the rotating shaft and the holes opened on the surface of the binding rod 3 and the rotating joint 9, the binding rod 3 can rotate at the front end of the rotating joint 9 to adjust the angle of the binding rod 3.

[0030] Furthermore, when the binding rod 3 approaches the outside of the tube body 1, the screw head 5 at the bottom of the binding rod 3 moves downward towards the tube body 1, and the sleeve 8 can only move up and down on the outside of the ring rod 10, so the binding rod 3 cannot be unfolded outward.

[0031] Finally, spring 7 is installed at the upper end of sleeve 8. When the binding rod 3 and the joint 9 move to a certain extent, the elastic reaction of spring 7 will cause sleeve 8 to return to the initial position outside the ring rod 10, thereby helping sleeve 8 to reset. This restricts the movement distance of the binding rod 3 and screw head 5 outside the tube body 1, preventing screw head 5 from moving excessively. This will prevent the connection between tube body 1 and tube head 4 from being squeezed by external objects.

[0032] like Figures 1-6 As shown, a microwave electrode for renal tumors includes an auxiliary structure 2 comprising an inner limiting sleeve 21 and an outer sleeve 22. The outer sleeve 22 is located at the bottom end of the receiving cylinder 6, and the inner limiting sleeve 21 is located at the bottom end of the inner limiting sleeve 21. The inner limiting sleeve 21 consists of two parts, with the diameter of the upper end of the inner limiting sleeve 21 being smaller than the diameter of the lower end of the inner limiting sleeve 21.

[0033] The rest are as follows: since both the inner limiting sleeve 21 and the outer sleeve 22 can be fitted onto the outside of the tube body 1, and the outer sleeve 22 can be locked onto the outside of the receiving cylinder 6, because the receiving cylinder 6 has a threaded structure inside and the screw head 5 also has a threaded structure on the outside, when the screw head 5 and the receiving cylinder 6 are threaded together, the outer sleeve 22 will fit over the connection between the receiving cylinder 6 and the screw head 5, so as to prevent the screw head 5 and the receiving cylinder 6 from loosening due to external shaking;

[0034] Furthermore, the inner limiting sleeve 21 is divided into two parts. The diameter of the upper part of the inner limiting sleeve 21 is smaller than the inner diameter of the outer sleeve 22, so the upper part of the inner limiting sleeve 21 can be inserted into the inner side of the outer sleeve 22. At the same time, the diameter of the lower part of the inner limiting sleeve 21 is much larger than the outer diameter of the outer sleeve 22, and the outer diameter of the receiving cylinder 6 is also smaller than the diameter of the opening at the upper end of the inner limiting sleeve 21. Therefore, when the lower part of the inner limiting sleeve 21 abuts against the edge of the bottom of the outer sleeve 22, both the upper part of the inner limiting sleeve 21 and the receiving cylinder 6 can be covered by the outer sleeve 22. This reduces the exposed portion of the tube body 1, thereby preventing the tube body 1 from bending during use.

[0035] Working principle: When using this microwave electrode for renal tumors, firstly, a ring rod 10 is arranged in a ring at the bottom end of the tube head 4, and the ring rod 10 is glued to the bottom end of the tube head 4. Push the screw head 5 upward, and the screw head 5 drives the binding rod 3 to move upward. The binding rod 3 drives the sleeve 8 to move on the outside of the ring rod 10, and the spring 7 applies a downward force to the sleeve 8. At the same time, the joint 9 can help adjust the angle between the binding rod 3 and the sleeve 8.

[0036] Since the screw head 5 and the receiving sleeve 6 are connected by threads, the receiving sleeve 6 will not fall off on its own after being connected to the screw head 5. Then, the outer sleeve 22 is clamped on the outside of the receiving sleeve 6, and the inner limiting sleeve 21 is clamped on the outside of the outer sleeve 22. At this time, the tube body 1 is completely covered, so the outside of the tube body 1 will be protected.

[0037] When the user moves the screw head 5 upward, the receiving cylinder 6 at the bottom of the screw head 5 also moves upward. Then, the screw head 5 drives the binding rod 3 to move upward, and the binding rod 3 drives the sleeve 8 to move upward outside the ring rod 10. At the same time, the outer sleeve 22 and the inner limiting sleeve 21 move upward with the receiving cylinder 6 and the screw head 5. At this time, the tube body 1 is exposed. When the tube body 1 is not needed, the spring 7 applies a downward force to the sleeve 8. At this time, the sleeve 8 moves downward outside the ring rod 10, and the sleeve 8 drives the binding rod 3 to reset. After the binding rod 3 resets, the auxiliary structure 2 will cover the outside of the tube body 1 again. This is the working principle of the microwave electrode used for renal tumors.

[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A microwave electrode for renal tumors, comprising: The tube body (1) and the tube head (4) are characterized in that the top end of the tube body (1) is provided with a tube head (4), the bottom end of the tube head (4) is provided with an insertion hole in an annular shape, a ring rod (10) is inserted into the insertion hole at the bottom end of the tube head (4), a sleeve (8) is sleeved on the outside of the ring rod (10), a spring (7) is provided at the top end of the sleeve (8), a rotating joint (9) is provided on one side of the sleeve (8), and a binding rod (3) is provided at one end of the rotating joint (9); The bottom end of the binding rod (3) is provided with a screw head (5), the bottom end of the screw head (5) is provided with a receiving cylinder (6), and the bottom end of the receiving cylinder (6) is provided with an auxiliary structure (2).

2. The microwave electrode for renal tumors according to claim 1, characterized in that, The bottom end of the binding rod (3) is glued to the outside of the screw head (5), and the top end of the binding rod (3) is adhesively bonded to the outside of the screw head (5).

3. A microwave electrode for renal tumors according to claim 1, characterized in that, The joint (9) consists of a rectangular part and a pivot, with the pivot in the joint (9) extending through the upper end of the binding rod (3).

4. A microwave electrode for renal tumors according to claim 1, characterized in that, The cross-sectional structure formed between the binding rod (3) and the tube (1) is a right triangle.

5. A microwave electrode for renal tumors according to claim 1, characterized in that, The outer side of the screw head (5) is provided with an external thread structure, and the upper end of the inner side of the receiving cylinder (6) is provided with an internal thread structure.

6. A microwave electrode for renal tumors according to claim 1, characterized in that, The auxiliary structure (2) includes an inner limiting sleeve (21) and an outer sleeve (22). The bottom end of the receiving cylinder (6) is provided with an outer sleeve (22), and the bottom end of the inner limiting sleeve (21) is provided with an inner limiting sleeve (21). The inner limiting sleeve (21) is composed of two parts, and the diameter of the upper end of the inner limiting sleeve (21) is smaller than the diameter of the lower end of the inner limiting sleeve (21).

7. A microwave electrode for renal tumors according to claim 6, characterized in that, A perforation is provided at the middle of the inner side of the inner sleeve (21) and the outer sleeve (22), and the diameter of the perforation of the outer sleeve (22) is larger than the diameter of the outer side of the receiving cylinder (6).