Facet zygapophysis operation electrode
By designing the small joint surgical electrode and using radio frequency energy and temperature control to accurately ablate the nerve fibers, the initial discharge and subsequent effects problems in thousand-frequency AC stimulation are solved, and the safety and efficiency of the surgery are improved.
Patent Information
- Application Number
- CN202420500415.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-03-14
AI Technical Summary
There is an initial discharge discomfort, muscle spasm or pain and subsequent conduction blocking effect during the nerve blocking process of current thousand-frequency AC stimulation, and the nerve conduction recovery time is long after the current is removed, resulting in side effects and inconvenience.
A small joint surgical electrode is designed, including a handle, display, button, electrode and insulated cannula, equipped with a temperature sensor and a timer, which accurately ablates the neural tissue through radio frequency energy, controls temperature and time, and avoids thermal damage and side effect.
Selective blockade of nerve fibers is achieved, initial discharge discomfort and subsequent effects are reduced, side effects and residual symptoms are reduced, and the safety and efficiency of the surgery are improved.
Smart Images
Figure CN222304010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a facet joint surgery electrode. Background Art
[0002] Existing methods for treating or relieving pain mainly relieve pain through the principle of nerve blocking. This method is to block the transmission of pain by local anesthesia of higher centers such as the brain and spinal cord, nerves of various segments of the spinal cord, cranial nerves and visceral nerves. For example, when there is pain in the lower back, the transmission of pain can be inhibited by blocking the dorsal root ganglia of the spinal cord, thereby playing an analgesic and anti-inflammatory role.
[0003] Nerve block therapy uses a lower concentration of local anesthetics and combines it with neurotrophic factors to deliver targeted medications to the conduction nerves. It has lower risks and fewer complications.
[0004] Existing pain relief devices use kilohertz frequency alternating current stimulation to block peripheral nerve conduction. The nerve blocking method is kilohertz frequency alternating current (KHFAC) stimulation, which applies kilohertz current or voltage to targeted nerve fibers in an extracellular stimulation manner. The nerve conduction blockade produced by KHFAC is also called KHFAC block, which has the characteristics of rapidity, controllability, reversibility, local action and small side effects.
[0005] The discomfort caused by the initial discharge when using 1,000-frequency AC stimulation in clinical practice. For some patients with severe pain symptoms, they usually expect to experience a short initial discharge because the discomfort is minimal. For patients who need to control chronic pain symptoms, they can experience a relatively long initial discharge. For some patients who need to frequently turn on and off 1,000-frequency AC stimulation, since the number of times the initial discharge is activated increases, they usually expect a shorter initial discharge time or no initial discharge.
[0006] One drawback of high-frequency alternating current technology is that after the application of kilo-frequency alternating current, a cluster of high-frequency discharges will be activated on the local nerve fibers near the blocking electrode. This phenomenon is also called the onset response, which may cause strong muscle spasms or pain. Another drawback is that after the blocking current is removed, the targeted nerves are still in a state of conduction blockage. They need some time to restore normal nerve conduction ability. This phenomenon is called the carry-over effect of KHFAC.
[0007] Facet joint surgery electrode is a treatment technology for the nervous system. This technology uses high-frequency current to act on nerve tissue through electrodes, and accurately ablates the nerves through the high heat effect generated to achieve the purpose of treatment. This technology has the advantages of less trauma, faster recovery, and obvious effects. It is widely used in the treatment of neurosurgery, pain medicine, rehabilitation and other fields.
[0008] Therefore, it is necessary to provide a small articular process surgical electrode, which can use controllable temperature to act on ganglia, trunks, roots and other parts, and take advantage of the differences in temperature tolerance of different nerve fibers to selectively block the required nerve fibers to achieve the purpose of blocking. For example, the unmyelinated thin fibers that transmit pain will degenerate at 70°C to 75°C, while the myelinated thick fibers that transmit touch can tolerate higher temperatures. Utility Model Content
[0009] In view of this, the purpose of the utility model is to provide a facet joint surgery electrode, which can accurately control the size of the injury focus, accurately monitor the injury temperature, most thermal coagulation injury focuses can recover quickly, with fewer residual symptoms and low incidence of complications and side effects.
[0010] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0011] A facet joint surgery electrode, comprising an electrode body, the electrode body comprising a handle and a working part, the handle being provided with a display screen and a button, the working part being arranged at the distal end of the handle, the working part comprising an electrode and an insulating sleeve, the insulating sleeve being wrapped around the outer side wall of the electrode, the distal end of the electrode being exposed from the insulating sleeve; a temperature sensor being provided at the distal end of the electrode, the temperature sensor being electrically connected to the display screen to display the working temperature of the electrode. The button is used to control the working state of the electrode and to switch the displayed information of the display screen; the display screen is used to display time and temperature. The temperature sensor transmits the output temperature in real time during the working process of the electrode, monitors the temperature during use, and avoids burns caused by excessive temperature.
[0012] Preferably, the electrode body is provided with a timer, and the timer is electrically connected to the display screen and the device host to display the working time of the electrode. The timer and the electrode cooperate with the host device to allow the working time range to be 30 seconds, and the display screen and the host synchronously display the time, which is convenient for the operator to observe the time without watching the host.
[0013] Preferably, the button includes a reset button, which is convenient for operation during surgery without having to press a button on the device host.
[0014] Preferably, the working time of the electrode is no more than 30 seconds to prevent burns caused by excessive temperature.
[0015] Preferably, a power cord and a power plug are connected to the proximal end of the handle.
[0016] The beneficial effects of the utility model are as follows:
[0017] Due to the adoption of the above technical solutions, the utility model has a surgical electrode with a display function, a monopolar, radiofrequency denervation device, and is suitable for ablating the nerves and capsular tissues on the posterior surface of the small joints. The denervation is achieved by delivering controlled radiofrequency energy. The temperature and time during the operation can be displayed in real time on the display screen; the temperature display facilitates the observation of the energy output during the operation to prevent thermal damage caused by excessive energy, and the time display screen and the host display the time synchronously, which is convenient for the operator to observe the time without watching the host. Reset button, after the operation time is over, it is directly operated by the handle button without pressing the button on the host.
[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, and at the same time to make the above and other purposes, technical features and advantages of the utility model easier to understand, one or more preferred embodiments are listed below and described in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0020] Figure 1 The utility model shows a schematic diagram of the overall structure of a facet joint surgery electrode.
[0021] Description of main reference numerals:
[0022] 1-electrode, 2-insulating sleeve, 3-handle, 4-display, 5-button, 6-power cord, 7-power plug. DETAILED DESCRIPTION
[0023] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.
[0024] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.
[0025] In this document, for the convenience of description, spatial relative terms such as "below", "below", "down", "above", "above", "upper", etc. may be used to describe the relationship between one element or feature and another element or feature in the accompanying drawings. It should be understood that the spatial relative terms are intended to include different orientations of the object in use or operation in addition to the orientation depicted in the figure. For example, if the object in the figure is turned over, the element described as being "below" or "below" other elements or features will be oriented "above" the element or feature. Therefore, the exemplary term "below" can include both below and above. Objects may also have other orientations (rotated 90 degrees or other orientations) and the spatial relative terms used in this document should be interpreted accordingly.
[0026] like Figure 1 As shown, a small articular process surgical electrode includes an electrode body, which includes a handle 3 and a working part. The handle 3 is provided with a display screen 4 and a button 5. The working part is arranged at the distal end of the handle 3, and the proximal end of the handle 3 is connected with a power cord 6 and a power plug 7.
[0027] The working part includes an electrode 1 and an insulating sleeve 2 . The insulating sleeve 2 is wrapped around the outer wall of the electrode 1 , and the distal end of the electrode 1 is exposed from the insulating sleeve 2 .
[0028] A temperature sensor is provided at the distal end of the electrode 1, and the temperature sensor is electrically connected to the display screen 4 to display the working temperature of the electrode 1. The button 5 is used to control the working state of the electrode 1 and switch the screen information of the display screen 4; the button 5 includes a reset button. The reset button is convenient for operation during surgery without pressing the buttons on the device host. The display screen 4 is used to display time and temperature. The temperature sensor transmits the output temperature in real time during the operation of the electrode 1, monitors the temperature during use, and avoids burns caused by excessive temperature.
[0029] The electrode body is provided with a timer, which is electrically connected to the display screen 4 and the device host to display the working time of the electrode 1. The timer and the electrode 1 cooperate with the host device to allow the working time range to be 30 seconds, and the display screen 4 and the host synchronously display the time, which is convenient for the operator to observe the time without watching the host.
[0030] The working time of the electrode 1 is no more than 30 seconds to prevent burns caused by excessive temperature.
[0031] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. Any simple modifications, equivalent changes and modifications made to the above exemplary embodiments should fall within the scope of protection of the utility model.
Claims
1. A facet joint surgery electrode, characterized in that: The electrode body comprises an electrode main body, the electrode main body comprises a handle (3) and a working part, the handle (3) is provided with a display screen (4) and a button (5), the working part is arranged at the distal end of the handle (3), the working part comprises an electrode (1) and an insulating sleeve (2), the insulating sleeve (2) is wrapped around the outer side wall of the electrode (1), and the distal end of the electrode (1) is exposed from the insulating sleeve (2); A temperature sensor is provided at the distal end of the electrode (1), and the temperature sensor is electrically connected to the display screen (4) to display the working temperature of the electrode (1).
2. The facet joint surgery electrode according to claim 1, characterized in that: The electrode body is provided with a timer, and the timer is electrically connected to the display screen (4) and the device host to display the working time of the electrode (1).
3. The facet joint surgery electrode according to claim 2, characterized in that: The button (5) comprises a reset button.
4. The facet joint surgery electrode according to claim 2, characterized in that: The working time of the electrode (1) is no more than 30 seconds.
5. The facet joint surgery electrode according to claim 4, characterized in that: The proximal end of the handle (3) is connected with a power cord (6) and a power plug (7).