Radio frequency tool bit capable of actively dredging and cleaning

Abstract

The utility model discloses a radio frequency cutting head capable of actively dredging and cleaning, and particularly relates to the field of radio frequency cutting heads, the radio frequency cutting head comprises a handle, a pipeline assembly installed at the front end of the handle and a cutting head assembly installed at the front section of the pipeline assembly, the cutting head assembly comprises an electrode holder located at the front end of the pipeline assembly, and the front end of the electrode holder protrudes outwards by a certain distance. The protruding bottom of the electrode holder is attached to the front end of the pipeline assembly, an electrode plate with a limiting function is installed on the surface of the front end of the electrode holder, a plurality of electrode balls are arranged on the surface of the electrode plate, and the electrode balls are limited at the front end of the electrode holder through the electrode plate. The through hole channel used for active dredging is formed in the tool bit part, liquid flows in the through hole to act on the tool bit part, the tool bit part is cleaned and dredged, and therefore active dredging is carried out in an operation gap to guarantee smoothness of the channel, attachment and accumulation of diseased tissue on the tool bit part are reduced, and the working efficiency is improved. And smooth operation is ensured.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency blades, and more specifically, to a radio frequency blade capable of actively unclogging and cleaning. Background Technology

[0002] Radiofrequency ablation (RFA) tips are widely used in surgery for tissue cutting, coagulation, and ablation, making them an indispensable tool in modern surgery due to their precision and efficiency. However, RFA tips frequently encounter clogging issues during use, primarily caused by the accumulation of tissue debris, blood clots, and other substances in the tip's vents or on the blade. Once a RFA tip becomes clogged, the cleaning process often requires manual intervention, which is time-consuming and can potentially damage the tip, affecting its lifespan. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an active unblocking and cleaning radio frequency blade, including a handle, a pipeline assembly installed at the front end of the handle, and a blade assembly installed at the front end of the pipeline assembly. The blade assembly includes an electrode seat located at the front end of the pipeline assembly. The front end of the electrode seat protrudes outward by a certain distance, and the bottom of the protruding electrode seat is attached to the front end of the pipeline assembly. An electrode plate with a limiting function is installed on the front end surface of the electrode seat. Several electrode balls are provided on the surface of the electrode plate. The electrode balls are limited at the front end of the electrode seat by the electrode plate. The electrode balls are connected to an electrode wire, and the electrode wire and the electrode ball are integrally set.

[0004] The electrode wire extends through the electrode holder into the pipeline assembly, and a through hole is provided in the middle of the electrode holder.

[0005] In a preferred embodiment, the piping assembly includes, from the outside to the inside, a heat shrink tubing, a stainless steel tube, a water protection tube, and a water pipe, which are sequentially arranged. The heat shrink tubing is attached to the outer wall of the stainless steel tube, and a gap is left between the water protection tube and the water pipe. An electrode wire connected to the electrode ball passes through the gap and is connected to the handle. The protruding bottom of the electrode seat is attached to the front end of the stainless steel tube, and the non-protruding rear end of the electrode seat is inserted into the inside of the stainless steel tube.

[0006] In a preferred embodiment, the electrode sheet includes an outer electrode sheet matching the number of electrode balls and an inner electrode sheet located inside the outer electrode sheet. Both the inner and outer electrode sheets are arranged in annular shape, and the inner electrode sheet is located in front of the through hole.

[0007] In a preferred embodiment, a plurality of outer electrode plates are connected to inner electrode plates by connecting plates. The outer electrode plates are welded to the surface of the front end of the electrode base. A gasket is also attached to the surface of the outer electrode plate. The electrode ball is embedded in the gasket. The electrode wire passes through the electrode base, the outer electrode plate and the gasket and is connected to the electrode ball.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] This invention features a through-hole channel in the blade tip for active unblocking. Liquid flows through the through-hole and acts on the blade tip to clean and unblock it. This active unblocking during operation ensures smooth channel flow, reduces the adhesion and accumulation of diseased tissue on the blade tip, extends its service life, and ensures smooth surgical procedures. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0011] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0012] Figure 3 For the present utility model Figure 2 Detailed structural diagram at point A in the middle;

[0013] Figure 4 This is a schematic internal cross-sectional view of the cutter head assembly and pipeline assembly of this utility model.

[0014] Explanation of reference numerals in the attached figures:

[0015] 1 handle;

[0016] 2. Piping components, 21. Heat shrink tubing, 22. Stainless steel tubing, 23. Water circuit protection tubing, 24. Water circuit tubing;

[0017] 3. Cutter head assembly, 31. Electrode holder, 32. Electrode sheet, 33. Electrode ball, 34. Electrode wire, 35. Tube;

[0018] 321 Outer electrode plate, 322 Inner electrode plate, 323 Connecting piece, 324 Washer ring;

[0019] 4 through holes;

[0020] 5. Temperature sensor. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0022] like Figure 1-4 The radio frequency blade shown includes a handle 1, a tubing assembly 2 installed at the front end of the handle 1, and a blade assembly 3 installed at the front end of the tubing assembly 2. The blade assembly 3 includes an electrode seat 31 located at the front end of the tubing assembly 2. The front end of the electrode seat 31 protrudes outward by a certain distance, and the protruding bottom of the electrode seat 31 is attached to the front end of the tubing assembly 2. An electrode plate 32 is installed on the front end surface of the electrode seat 31. A plurality of electrode balls 33 are provided on the surface of the electrode plate 32. The electrode balls 33 are limited at the front end of the electrode seat 31 by the electrode plate 32. The electrode balls 33 are connected to an electrode wire 34, and the electrode wire 34 and the electrode balls 33 are integrated.

[0023] The electrode wire 34 extends through the electrode base 31 into the interior of the tubing assembly 2. A through hole 4 is provided in the middle of the electrode base 31. A temperature sensor 5 is embedded in the inner wall of the through hole 4. The electrode wire 34 and the electrode ball head 33 are integrally formed, and the electrode ball head 33 is limited at the front end of the electrode base 31. During the operation, the flushing liquid is transported from the tubing assembly 2 to the through hole 4 inside the electrode base 31, and reaches the front end of the blade from the through hole 4 to flush and clean the lesion tissue stuck at the front end of the blade, thereby actively clearing the channel during the operation interval to ensure smooth flow.

[0024] The slider for controlling the irrigation fluid is integrated into the handle 1, which facilitates the control of the fluid passing through the through hole 4 during the operation.

[0025] The built-in temperature sensor 5 is used to monitor the temperature of the cutter head assembly 3 in real time to prevent material fatigue and abnormal excitation state caused by excessive temperature.

[0026] The pipeline assembly 2 includes heat shrink tubing 21, stainless steel tube 22, water protection tube 23 and water tube 24, which are sequentially arranged from the outside to the inside. The heat shrink tubing 21 is attached to the outer wall of the stainless steel tube 22. A gap is left between the water protection tube 23 and the water tube 24. The electrode wire 34, which is connected to the electrode ball head 33, passes through the gap and is connected to the handle 1. The protruding bottom of the electrode seat 31 is attached to the front end of the stainless steel tube 22, and the non-protruding rear end of the electrode seat 31 is inserted into the inside of the stainless steel tube 22.

[0027] Among them, the stainless steel tube 22 extends a certain distance from the front end of the heat shrink tube 21, the cutter head assembly 3 is located at the front end of the stainless steel tube 22, and the electrode wire 34 located between the water circuit protection tube 23 and the water circuit tube 24 is also wrapped with a tubing 35, which provides protection and insulation for the electrode wire 34.

[0028] The electrode sheet 32 ​​includes an outer electrode sheet 321 matching the number of electrode ball heads 33 and an inner electrode sheet 322 located inside the outer electrode sheet 321. Both the inner electrode sheet 322 and the outer electrode sheet 321 are arranged in a ring shape. The inner electrode sheet 322 is located in front of the through hole 4.

[0029] A connecting piece 323 connects several outer electrode plates 321 and inner electrode plates 322. The outer electrode plates 321 are welded to the front surface of the electrode base 31. A gasket 324 is also attached to the surface of the outer electrode plates 321. The electrode ball head 33 is embedded in the gasket 324. The electrode wire 34 passes through the electrode base 31, the outer electrode plates 321 and the gasket 324 and is connected to the electrode ball head 33.

[0030] Based on the above, the outer electrode 321, inner electrode 322, and connecting piece 323 are integrated into a single unit, welded together at the front of the electrode holder 31. The inner electrode 322 is annular and located just in front of the through hole 4. When the liquid inside the tubing assembly 2 is transported to the surgical site through the through hole 4, the annular structure of the inner electrode 322 facilitates the passage of the liquid, reduces splashing, and allows it to act on the blade tip. It also reduces the adhesion and accumulation of lesions on the blade tip. The electrode wire 34 passes through the annular interior of the outer electrode 321, and the electrode ball 33 is located at the front. It is supported and carried by the pad ring 324 on the outer electrode 321, preventing the electrode ball 33 from falling off at the front of the electrode holder 31 and ensuring that the radiofrequency blade remains stable during use.

[0031] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A radio frequency blade capable of actively unclogging and cleaning, comprising a handle, a tubing assembly mounted at the front end of the handle, and a blade assembly mounted at the front end of the tubing assembly, characterized in that, The cutter head assembly includes an electrode seat located at the front end of the tubing assembly. The front end of the electrode seat protrudes outward by a certain distance, and the bottom of the protruding electrode seat fits against the front end of the tubing assembly. An electrode plate is installed on the front surface of the electrode seat, and several electrode balls are provided on the surface of the electrode plate. The electrode balls are limited at the front end of the electrode seat by the electrode plate. The electrode balls are connected to an electrode wire, and the electrode wire and the electrode ball are integrated. The electrode wire extends through the electrode holder into the pipeline assembly, and a through hole is provided in the middle of the electrode holder.

2. The radio frequency blade capable of actively clearing blockages according to claim 1, characterized in that: The piping assembly includes, from the outside to the inside, a heat shrink tubing, a stainless steel tube, a water protection tube, and a water pipe, which are sequentially arranged. The heat shrink tubing is attached to the outer wall of the stainless steel tube. A gap is left between the water protection tube and the water pipe. The electrode wire connected to the electrode ball passes through the gap and connects to the handle. The protruding bottom of the electrode seat is attached to the front end of the stainless steel tube, and the non-protruding rear end of the electrode seat is inserted into the inside of the stainless steel tube.

3. The radio frequency blade capable of actively unclogging and cleaning according to claim 1, characterized in that: The electrode sheet includes an outer electrode sheet matching the number of electrode balls and an inner electrode sheet located inside the outer electrode sheet. Both the inner and outer electrode sheets are arranged in a ring shape, and the inner electrode sheet is located in front of the through hole.

4. The radio frequency blade capable of actively unclogging and cleaning according to claim 3, characterized in that: A connecting piece connects several outer electrode plates to inner electrode plates. The outer electrode plates are welded to the surface of the front end of the electrode base. A gasket is also attached to the surface of the outer electrode plate. The electrode ball is embedded in the gasket. The electrode wire passes through the electrode base, the outer electrode plate, and the gasket and is connected to the electrode ball.

Images