Renal adventitia ablation device integrated with evaluation function

Abstract

The invention discloses a renal adventitia ablation device integrated with an evaluation function, which comprises a handle, a control module is arranged in the handle, and the front end of the handle is connected with an extension catheter; the device further comprises an ablation assembly. The ablation assembly comprises an ablation ring in signal connection with the control module, a memory alloy section and a bending control guide wire are arranged on the ablation ring, and electrode rings which are arranged at intervals and are in signal connection with the control module are arranged on the ablation ring. According to the ablation device, the operation mode can be greatly simplified, the operation time is shortened, and the ablation effect can be immediately evaluated; the pain of the patient and the operation risk can be reduced, and the success rate of the operation and the satisfaction degree of the patient can be improved. The ablation device provided by the invention has a wide application prospect in the fields of medical equipment, biomedical engineering and electronic control systems, and has a relatively high practical value.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a renal artery adventitia ablation device with integrated evaluation function. Background Art

[0002] Renal artery ablation is a commonly used medical technology, mainly used to treat diseases such as hypertension. This technology uses an ablation device to transfer electrical energy or thermal energy to the outer membrane of the renal artery to achieve the purpose of ablating the nerves. Existing renal artery ablation technology mainly uses a single or multiple flexible extension catheters or clamps for ablation. These extension catheters or clamps are provided with electrodes, and energy is output by the electrodes for ablation. During the operation, the doctor needs to manually adjust the position and direction of the extension catheter or clamp to achieve a precise ablation effect. In addition, some existing technologies also try to use materials such as memory alloy wire to make shaping wires to help extend the bending and positioning of the catheter or clamp.

[0003] Although the existing renal artery ablation technology can achieve a certain ablation effect, there are still some problems and limitations. First, since each ablation requires precise positioning and operation, the operation often takes a long time, which increases the patient's pain and surgical risks. Secondly, during the ablation process, the energy transfer and coverage of the existing technology may not be uniform, which can easily lead to energy loss and damage to the renal artery blood vessels. In addition, the existing technology cannot immediately evaluate the ablation effect after ablation, and subsequent inspections and evaluations are required to determine the effect of the ablation, which increases the complexity of the operation and the patient's waiting time. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a renal artery adventitia ablation device with integrated evaluation function. When in use, the device can simultaneously ablate more than two locations of the renal artery adventitia, thereby reducing the number of ablations, simplifying the surgical method, and reducing the operation time; and improving the safety and reliability of the operation.

[0005] The technical solution adopted by the present invention is: a renal artery adventitia ablation device with integrated evaluation function, including a handle with a built-in control module, an extension catheter connected to the front end of the handle, and an ablation component; the ablation component includes an ablation coil connected to the control module signal, the ablation coil is provided with a memory alloy segment and a bending control guide wire to enable the ablation coil to be expanded or contracted, and the ablation coil is provided with electrode rings arranged at intervals and connected to the control module signal.

[0006] When in use, the technical solution places the ablation component into the surgical area through a catheter. After the ablation circle of the ablation component is in the surgical area, it is unfolded under the action of the memory alloy, and the energy generated by each electrode ring is used to completely cover the adventitia of the renal artery. The energy generated by multiple electrode rings is transmitted and covered more evenly, which can reduce energy loss and damage to the renal artery blood vessels. It can ablate more than two locations of the adventitia of the renal artery at the same time, thereby achieving the purpose of reducing the number of ablations and operation time. When the ablation operation is completed, the design of instantly evaluating the ablation effect through the electrode ring can realize instant evaluation of the ablation effect.

[0007] Preferably, a hand-holding section is provided at the rear end of the handle, and a control button and a display screen connected to the control module signal are installed at the front end of the handle corresponding to the hand-holding section.

[0008] Preferably, the ablation ring includes a main section and side sections located on both sides of the main section, and both ends of the side sections are bent and connected to both ends of the main section. When the ablation ring is closed and contracted, the main section and the side sections are bent along the middle to form a ring shape so that each electrode ring is arranged in a spiral.

[0009] Preferably, the ablation coil is provided with a thermocouple temperature sensor which is signal-connected to the control module.

[0010] Preferably, a mounting joint for connecting to the ablation coil is provided at the front end of the extension catheter, and the rear end of the extension catheter is fixedly connected to a connecting end provided at the front end of the handle.

[0011] Preferably, the extension catheter is a polymer extension catheter.

[0012] Preferably, the control module is connected to a connector via a control circuit, the connector is connected to a radiofrequency ablation assembly via a connecting tail wire, and the radiofrequency ablation assembly is provided with a control module.

[0013] The beneficial effects of the present invention are as follows: the ablation coil of the present invention adopts a design in which the shaping wire is a memory alloy wire, so that the electrode part can be better fixed and positioned; the bendable design is adopted so that each electrode structure can simultaneously ablate more than two locations of the renal artery adventitia, thereby reducing the number of ablations, simplifying the surgical method, and reducing the surgical time. After the ablation coil is closed, the electrodes on the ablation coil are arranged in a spiral staggered manner as a whole, so that the transmission and coverage of the ablation energy are more uniform, while reducing energy loss and damage to the renal artery blood vessels. The electrode structure arranged on the ablation coil in the present invention can achieve instant evaluation of the ablation effect by switching modes, making the surgical procedure safer and more precise. The present invention can reduce the difficulty of operation during the operation, improve the safety and reliability of the operation, and has a high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0015] Figure 1 It is a stereoscopic assembly diagram of a renal artery adventitia ablation device with integrated evaluation function provided in an embodiment of the present invention.

[0016] Figure 2 This is a three-dimensional diagram of the unfolded ablation coil of the renal artery adventitia ablation device with integrated evaluation function provided in an embodiment of the present invention.

[0017] Figure 3 This is a collapsed stereoscopic image of a renal artery adventitia ablation device with integrated evaluation function provided in an embodiment of the present invention.

[0018] Figure numerals: handle 100 , extension catheter 200 , ablation coil 300 , main section 310 , side section 320 , electrode ring 400 , control button 500 , mounting connector 600 , connector 700 , connecting tail line 800 , radiofrequency ablation assembly 900 , control module 1000 . DETAILED DESCRIPTION

[0019] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0020] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0021] Embodiment 1

[0022] like Figures 1 to 3 As shown, a specific embodiment of the present invention provides a renal artery adventitia ablation device with integrated evaluation function, including a handle 100, the handle 100 has a built-in control module, the front end of the handle 100 is connected to an extension catheter 200, and also includes an ablation component; the ablation component includes an ablation coil 300 connected to the control module signal, the ablation coil 300 is provided with a memory alloy segment and a bending control guide wire so that the ablation coil 300 can be expanded or contracted, and the ablation coil 300 is provided with electrode rings 400 arranged at intervals and connected to the control module signal.

[0023] like Figures 1 to 3As shown, through the above-mentioned arrangement, the ablation device provided in this embodiment places the ablation component into the surgical area through a catheter when in use. After the ablation circle 300 of the ablation component is in the surgical area, it is unfolded under the action of the memory alloy, and the energy generated by each electrode ring 400 is used to completely cover the adventitia of the renal artery. The energy transmission and coverage generated by the multiple electrode rings 400 are more uniform, which can reduce energy loss and damage to the renal artery blood vessels, and can ablate more than two locations of the adventitia of the renal artery at the same time, thereby achieving the purpose of reducing the number of ablations and the operation time. When the ablation operation is completed, the design of instantly evaluating the ablation effect through the electrode ring 400 can realize instant evaluation of the ablation effect.

[0024] like Figures 1 to 3 As shown, during the ablation operation, the operation is mainly controlled by the handle 100. In order to facilitate the control and use by medical staff, this embodiment is provided with a hand-held section at the rear end of the handle 100, and a control button 500 and a display screen connected to the control module signal are installed at the front end of the handle 100 corresponding to the hand-held section. The control button 500 connected to the control module can adjust the equipment parameters or control the operating status, and the corresponding technical parameters can be displayed in real time through the display screen, which is conducive to improving the operating efficiency and surgical effect. In actual applications, the control module uses a controller and a control program to form an electronic control system. The handle 100 can be used to control the ablation circle 300 to expand or bend and close, thereby achieving precise energy coverage, which can not only improve the accuracy of the operation, but also reduce the difficulty of operation during the operation, and improve the safety and reliability of the operation. In order to facilitate the connection of the device to the ablation device for ablation operation, the control module in this embodiment is connected to a connector 700 through a control circuit, and the connector 700 is connected to a radio frequency ablation assembly 900 through a connecting tail line 800. The radio frequency ablation assembly 900 is provided with a control module 1000. The radio frequency ablation assembly 900 can select corresponding specifications and models according to needs and can be connected to the handheld controller through the connecting tail line 800 when in use.

[0025] like Figures 1 to 3 As shown, the ablation ring 300 provided in this embodiment includes a main section 310 and side sections 320 located on both sides of the main section 310. The two ends of the side sections 320 are bent and connected to the two ends of the main section 310. When the ablation ring 300 is closed and contracted, the main section 310 and the side section 320 have a memory alloy and a bending steel wire, and a ring structure is formed after closing and contracting, so that the main section 310 and the side section 320 are bent along the middle to form a ring shape, so that each electrode ring 400 is arranged in a spiral. After the ablation ring 300 is bent and closed, the electrode ring 400 is designed to be arranged in a spiral staggered manner as a whole, so that the energy transmission and coverage are more uniform, and the energy loss and damage to the renal artery are reduced. In practical applications, the memory alloy uses nickel-titanium alloy wire with a diameter of 0.5 mm; the bending control guide wire is a stainless steel wire with a diameter of 0.3 mm.

[0026] When the device is in use, the ablation temperature is usually set between 60-80° C. In this embodiment, a thermocouple temperature sensor connected to the control module signal is provided on the ablation coil 300 to monitor the temperature of the ablation site through the thermocouple to ensure the ablation effect.

[0027] like Figures 1 to 3 As shown, the device connects the handle 100 and the ablation coil 300 via an extension catheter 200. For easy connection, a mounting joint 600 for connecting the ablation coil 300 is provided at the front end of the extension catheter 200, and the rear end of the extension catheter 200 is fixedly connected to the connection end provided at the front end of the handle 100. In practical applications, the extension catheter 200 is a polymer catheter made of materials such as Pebax or PA12, with a tube diameter of about 2 mm and a length of about 50 cm.

[0028] The steps for using this device are as follows:

[0029] Step 1: Prepare the device, select a suitable handle according to the surgical needs, and control and monitor the ablation process through the control buttons and display screen on the handle; the thermocouple installed on the ablation coil is a K-type thermocouple, which is used to monitor the temperature of the ablation site.

[0030] Step 2: Prepare the working environment, place the ablation device on a sterile operating table, connect the power supply and display device, ensure that the device works normally, place the patient in supine position, and perform laparoscopic surgery after anesthesia.

[0031] Step 3: Perform ablation. Insert the catheter into the adventitia of the renal artery through the laparoscope to reach the predetermined ablation site. Use the control button on the handle to close the ablation circle in a ring shape. The spirally arranged electrode rings can be in close contact with the adventitia of the renal artery. Then start the ablation mode and output energy for ablation. During the ablation process, monitor the temperature of the ablation site through a thermocouple to ensure that the temperature is between 40-80°C. The ablation time is 5-10 minutes.

[0032] Step 4: Evaluate the ablation effect. After the ablation is completed, switch the electrode ring to the mapping mode to evaluate the ablation effect. The medical staff observes the mapping results on the display screen to determine whether the ablation is complete.

[0033] Step 5: Cleaning and ending. After confirming the ablation effect, clean the surgical area and end the operation.

[0034] The ablation device of the present invention can greatly simplify the surgical method, reduce the operation time, and can immediately evaluate the ablation effect. This efficient and accurate surgical method can not only reduce the patient's pain and surgical risks, but also improve the success rate of the operation and the patient's satisfaction. In addition, since the ablation device of the present invention can cover more renal artery adventitia positions in one operation, it can reduce energy loss and damage to the renal artery blood vessels, and improve the ablation effect. In the field of biomedical engineering, the ablation device of the present invention uses advanced electrode materials and shaping wire materials, as well as innovative ablation module design. These technological innovations provide new ideas and technical support for the development of the field of biomedical engineering. In addition, the ablation device of the present invention can also provide important data support for research and clinical applications in the field of biomedical engineering by instantly evaluating the ablation effect. In the field of electronic control systems, the ablation device of the present invention uses an advanced electronic control system, which can control the bending and closing of the ablation part catheter or clamp through the handle to achieve accurate energy coverage. This efficient electronic control system can not only improve the accuracy of the operation, but also reduce the difficulty of operation during the operation, and improve the safety and reliability of the operation. In general, the ablation device of the present invention has broad application prospects in the fields of medical equipment, biomedical engineering and electronic control systems, has huge market demand, and is expected to become one of the mainstream medical devices in the future.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A renal artery adventitial ablation device with integrated evaluation function, comprising a handle (100), wherein the handle (100) has a built-in control module, and an extension catheter (200) is connected to the front end of the handle (100); characterized in that: Also included is an ablation component; The ablation assembly comprises an ablation coil (300) connected to a control module signal, the ablation coil (300) is provided with a memory alloy segment and a bending control guide wire so that the ablation coil (300) can be expanded or contracted, and the ablation coil (300) is provided with electrode rings (400) arranged at intervals and connected to the control module signal.

2. The renal artery adventitial ablation device with integrated evaluation function according to claim 1, characterized in that: The handle (100) is provided with a hand-held section at the rear end, and a control button (500) and a display screen connected to a control module signal are provided at the front end of the handle (100) corresponding to the hand-held section.

3. The renal artery adventitial ablation device with integrated evaluation function according to claim 1, characterized in that: The ablation ring (300) comprises a main section (310) and side sections (320) located on both sides of the main section (310); the two ends of the side sections (320) are bent and connected to the two ends of the main section (310); when the ablation ring (300) is closed and contracted, the main section (310) and the side sections (320) are bent along the middle to form a ring shape so that each electrode ring (400) is arranged in a spiral.

4. The renal artery adventitial ablation device with integrated evaluation function according to claim 1, characterized in that: The ablation ring (300) is provided with a thermocouple temperature sensor which is signal-connected to the control module.

5. The renal artery adventitia ablation device with integrated evaluation function according to claim 1, characterized in that: The front end of the extension catheter (200) is provided with a mounting joint (600) connected to the ablation coil (300), and the rear end of the extension catheter (200) is fixedly connected to a connecting end provided at the front end of the handle (100).

6. The renal artery adventitia ablation device with integrated evaluation function according to claim 1, characterized in that: The extension catheter (200) is a polymer extension catheter (200).

7. The renal artery adventitial ablation device with integrated evaluation function according to claim 1, characterized in that: The control module is connected to a connector (700) via a control circuit, the connector (700) is connected to a radiofrequency ablation assembly (900) via a connecting tail line (800), and the radiofrequency ablation assembly (900) is provided with a control module (1000).

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