Low-temperature plasma smoking operation electrode
By designing the convex spherical point and the smoke-smoking hole structure of the low-temperature plasma smoking surgical electrode, the problems of high-temperature ablation and smoke in electrosurgery are solved, achieving low-temperature ablation and smoke removal, thus improving the precision and safety of the surgery.
Patent Information
- Application Number
- CN202422499419.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-10-16
AI Technical Summary
Existing electrosurgical electrodes suffer from problems such as high ablation temperature, low surgical precision, and smoke generation that affects the field of vision, especially causing thermal damage to non-target tissues in minimally invasive surgery.
A low-temperature plasma ablation surgical electrode was designed, employing a convex spherical design and a smoke extraction hole structure, combined with an insulating coating, to achieve low-temperature ablation and smoke extraction, reducing thermal damage and improving surgical precision.
It achieves low-temperature ablation, reducing thermal damage to tissues, promoting rapid coagulation, lowering the ablation temperature, and removing smoke through the suction function, thus improving the precision and safety of the procedure.
Smart Images
Figure CN223653915U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically a low-temperature plasma smoking surgical electrode. Background Technology
[0002] Electrosurgical electrodes are specialized medical devices designed and manufactured to provide surgeons with cutting, hemostasis, and other functions during surgery. Due to their advantages such as low infection rates, easy healing, and significantly reduced surgical time, they are gradually replacing traditional surgical blades and are increasingly widely used in clinical practice.
[0003] However, conventional electrosurgical ablation electrodes have high ablation temperatures and low surgical precision. In minimally invasive surgeries such as neurosurgery and spinal surgery, which require minimal thermal damage and precise ablation, thermal damage is significant, and non-target tissues are easily damaged. The procedure also generates smoke, which can affect the surgical field of vision of medical staff and harm their health. Utility Model Content
[0004] To address the above problems, this invention provides a low-temperature plasma smoking surgical electrode to solve the issues of significant thermal damage and the inability to handle the smoke generated during surgery.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A low-temperature plasma smoking surgical electrode includes a blade rod with a protruding ball on its end face. Both the end face of the blade rod and the surface of the protruding ball are coated with an insulating coating. A smoking tube is disposed inside the blade rod, and a smoking hole is disposed on the side wall of the blade rod, which is connected to the smoking tube.
[0007] As a further improvement to the above technical solution, the convex ball points are arranged in a circumferential array on the end face of the cutter head rod; the outer diameter SR0 of the convex ball points is 0.15mm to 0.3mm, and the height h0 of the convex ball points is 0.4mm to 0.6mm.
[0008] As a further improvement to the above technical solution, the diameter d0 of the cutter head bar is 2mm to 4mm, and the edge of the end face of the cutter head bar is provided with an arc surface.
[0009] As a further improvement to the above technical solution, the smoking holes are evenly distributed around the outer side wall of the cutter head, and the number of smoking holes is ≥10; the diameter of the smoking holes is 0.5mm to 1mm.
[0010] As a further improvement to the above technical solution, the minimum distance L0 between the smoking hole and the end face of the cutter head rod is ≥2mm.
[0011] As a further improvement to the above technical solution, the front end and the rear end of the cutter head rod can be set at a certain angle, and the included angle between the front section and the rear section of the cutter head rod can be 90°, 120°, 150°, or 180°.
[0012] As a further improvement to the above technical solution, the smoke extraction hole is located at the front section of the cutter head rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: It provides a low-temperature plasma smoking surgical electrode with a convex spherical design for low-temperature ablation. The apex of the convex spherical point focuses energy, increases the energy density at the contact point with local tissue, makes tissue coagulation ablation faster, reduces ablation time, lowers tissue ablation temperature and thermal damage to surrounding tissues, and also has the function of suction to eliminate smoke. At the same time, the electrode tip has multiple angle designs to meet the needs of different surgical spaces and different surgical angles. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a schematic diagram of the main structure of this utility model.
[0016] Figure 3 This is a schematic diagram of the principle and structure of this utility model.
[0017] Figure 4 The diagram shows three different cutter head structures according to embodiments of this utility model.
[0018] In the figure: 1. Blade holder; 11. Arc surface; 2. Convex spherical point; 3. Insulating coating; 4. Smoke tube; 5. Smoke hole; 6. Local tissue. Detailed Implementation
[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the protection scope of this utility model in any way. Example
[0020] A low-temperature plasma smoking surgical electrode includes a blade rod with a raised ball on its top end face. The raised ball enhances the electrode's effectiveness without altering the ablation area. The raised ball protrudes above the top end face, and the edge of the top end face has an insulating coating to prevent discharge to tissue from the edge, improving surgical precision and reducing damage to non-target tissues. An insulating coating is also applied to the outside of the raised ball to limit the energy released by the electrode during surgery. The high-frequency current skin effect of the raised ball allows for concentrated and controllable release, reducing the temperature rise at the surgical site and ensuring the surgery is performed at a low temperature.
[0021] Specifically, the outer diameter of the convex dot SR0 = SR0.15mm~SR0.3mm, and the height h0 = 0.4mm~0.6mm; the convex height is appropriate, and the plane between the convex dots is isolated by an insulating coating, so that the energy output at the top can complete the surgical ablation; at the same time, it avoids the phenomenon that the gap between the micro-convex dots is completely covered due to the accumulation of paint during the coating spraying process, thus improving the production yield.
[0022] The surgical tip has an internal fume extraction tube, which connects to a flexible fume extraction hose via a sealed conduit in the electrode assembly inside the surgical electrode handle. This hose can be connected to an electric suction device or a hospital central negative pressure suction system to provide negative pressure suction power. Fume extraction holes are located on the side wall of the surgical tip, specifically at the front section. These holes are evenly distributed circumferentially on the outer wall of the surgical tip and are connected to the internal fume extraction tube. This allows for the extraction of harmful fumes generated during surgery. Specifically, there are at least 10 fume extraction holes, with a diameter of 0.5mm to 1mm. The distance L0 from the fume extraction hole closest to the end of the surgical tip is at least 2mm.
[0023] The edge of the top face of the electrode rod is rounded to form a curved surface structure. During the spraying of the insulating coating, the curved surface structure can uniformly spray the insulating coating and avoid sharp angles that could cause tip discharge. In this embodiment, the insulating coating is a ceramic insulating coating.
[0024] The cutter head rod consists of a front end and a rear end. In this embodiment, the included angle between the front end and the rear end of the cutter head rod is 180°.
[0025] In the third embodiment of this utility model, the included angle between the front end and the rear end of the cutter head rod is 90°.
[0026] In the fourth embodiment of this utility model, the included angle between the front end and the rear end of the cutter head rod is 120°.
[0027] In the second embodiment of this utility model, the included angle between the front end and the rear end of the cutter head rod is 120°.
[0028] The convex dot design, when generating high-frequency current in the electrode, creates a skin effect due to the increased surface area of the smooth surface, concentrating the charge on the surface of the convex dot. The apex of the convex dot focuses energy, increasing the energy density at the contact point with local tissue, making tissue coagulation ablation faster, reducing ablation time, lowering tissue ablation temperature, and reducing thermal damage to surrounding tissues. When generating a high-frequency electric field in the electrode, the convex part forms a local high field strength. This local field enhancement can quickly establish a discharge ablation channel, reducing the requirement for the amplitude of the applied voltage. Under the same voltage level, the local field strength can effectively increase the electrode's effect.
[0029] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only used to help understand the method and core ideas of this utility model.
[0031] The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principle of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A low-temperature plasma smoking surgical electrode, comprising a blade handle, characterized in that, A convex ball is provided on the end face of the cutter head rod, and an insulating coating is provided on both the end face of the cutter head rod and the surface of the convex ball. A smoke tube is provided inside the cutter head rod, and a smoke hole is provided on the side wall of the cutter head rod, and the smoke hole is connected to the smoke tube.
2. The low-temperature plasma smoking surgical electrode according to claim 1, characterized in that, The convex ball points are arranged in a circumferential array on the end face of the cutter head rod; the outer diameter of the convex ball point SR0 is 0.15mm to 0.3mm, and the height of the convex ball point h0 is 0.4mm to 0.6mm.
3. The low-temperature plasma smoking surgical electrode according to claim 1, characterized in that, The diameter d0 of the cutter head rod is 2mm to 4mm, and the edge of the end face of the cutter head rod is provided with an arc surface.
4. The low-temperature plasma smoking surgical electrode according to claim 1, characterized in that, The smoke holes are evenly spaced along the circumference of the outer wall of the cutter head, and the number of smoke holes is ≥10; the diameter of the smoke holes is 0.5mm to 1mm.
5. The low-temperature plasma smoking surgical electrode according to claim 4, characterized in that, The minimum distance L0 between the smoking hole and the end face of the cutter head rod is ≥2mm.
6. The low-temperature plasma smoking surgical electrode according to any one of claims 1-5, characterized in that, The front end and rear end of the cutter head rod can be set at a certain angle, and the included angle between the front section and the rear section of the cutter head rod can be 90°, 120°, 150°, or 180°.
7. The low-temperature plasma smoking surgical electrode according to claim 6, characterized in that, The smoke extraction hole is located at the front section of the cutter head.