A plasma surgical tip and a plasma surgical blade

Abstract

This disclosure relates to a plasma surgical tip and a plasma surgical blade. The plasma surgical tip includes a support and an electrode. A suction tube is provided on the support. The electrode includes an electrode block disposed on the support and a plurality of electrode heads disposed on the electrode block. A grid-like suction hole is formed at one end of the electrode block near the electrode heads, and a suction channel is provided within the electrode block. One end of the suction channel connects to the grid-like suction hole, and the other end connects to the suction tube. The plurality of electrode heads are evenly distributed circumferentially along the grid-like suction hole, and the ends of the plurality of electrode heads opposite to the support protrude from the outer surface of the electrode block. Through this technical solution, the plasma surgical tip can penetrate deeper into the gaps or depressions of uneven anatomical structures such as bones and joints, improving operational accuracy and reducing the risk of suction channel blockage.

Description

Technical Field

[0001] This disclosure relates to the field of medical device technology, specifically to a plasma surgical blade head and a plasma surgical blade. Background Technology

[0002] With the deepening trend of minimally invasive and endovascular medical procedures, surgical procedures place higher demands on the precision, safety, and adaptability of instruments. This is especially true in surgeries on complex sites such as bones and joints, where it is necessary to balance the efficiency of tissue cutting, ablation, and hemostasis while minimizing the risk of thermal damage and postoperative complications. Low-temperature plasma technology, which can perform tissue processing at lower temperatures, has gradually replaced traditional electrosurgical units in clinical applications.

[0003] In related technologies, when the blade of a low-temperature plasma surgical scalpel is applied to uneven anatomical structures (such as bones and joints), it is difficult to penetrate the target area for precise operation. Furthermore, when suctioning exudate and necrotic tissue from the wound, the suction channel is prone to blockage. Blockage prevents heat from being discharged from the surgical area in a timely manner, causing the cutting temperature to rise, resulting in carbonization of normal tissue and nerve damage. The incidence of postoperative complications (such as pain and swelling) increases significantly. Utility Model Content

[0004] The purpose of this disclosure is to provide a plasma surgical tip that can penetrate deeper into the gaps or depressions of uneven anatomical structures such as bones and joints, improving operational precision and reducing the risk of suction channel blockage.

[0005] To achieve the above objectives, this disclosure provides a plasma surgical tip, including a support and an electrode; The bracket is provided with a suction tube; the electrode includes an electrode block disposed on the bracket and a plurality of electrode heads disposed on the electrode block. The electrode block has a grid-shaped suction hole at one end near the electrode head, and a suction channel is provided inside the electrode block. One end of the suction channel is connected to the grid-shaped suction hole, and the other end is connected to the suction tube; the plurality of electrode heads are evenly distributed around the circumference of the grid-shaped suction hole, and the end of the plurality of electrode heads opposite to the bracket protrudes from the outer surface of the electrode block.

[0006] Optionally, the mesh-like suction holes include multiple through holes, which are arranged in an array.

[0007] Optionally, the diameter of the through hole is 0.3mm-1mm, and the center distance between two adjacent through holes is 0.5mm-1mm.

[0008] Optionally, the end of the electrode block facing away from the bracket protrudes from the outer surface of the bracket.

[0009] Optionally, the cross-sectional shape of the bracket is constructed to be circular or elliptical.

[0010] Optionally, the bracket is made of a polymer material.

[0011] Optionally, the suction channel is constructed as a gradient channel, and the aperture of the suction channel gradually increases from the mesh-like suction holes toward the interior of the suction channel.

[0012] Optionally, the inner wall of the suction channel is provided with a spiral guide plate, which is used to guide the suction airflow to form a spiral flow.

[0013] Optionally, the inner wall of the suction channel is coated with a polytetrafluoroethylene nanocoating.

[0014] Based on the above technical solution, this disclosure also provides a plasma surgical knife, including the aforementioned plasma surgical knife head.

[0015] Through the above technical solution, the plasma surgical scalpel head disclosed herein comprises two parts: a support frame and an electrode. The support frame serves as the basic support structure. The electrode is the core component for realizing plasma cutting and ablation functions, and includes an electrode block and multiple electrode heads. The electrode block is fixed on the support frame. The suction channels opened on the electrode block are used to suction out exudates, necrotic tissue, and heat from the surgical area through negative pressure. The grid-like suction holes on the electrode block are connected to the suction channels to form a complete suction path. The grid-like suction holes increase the suction area and, in conjunction with the circumferential distribution of the electrode heads, can efficiently suction exudates and necrotic tissue from multiple directions when the electrode heads act on the tissue, reducing local accumulation and lowering the risk of suction channel blockage. This avoids tissue carbonization and nerve damage caused by heat accumulation in the surgical area, and reduces the incidence of postoperative complications. Since the electrode heads protrude from the outer surface of the electrode block, the adaptability and operational precision of the plasma surgical scalpel head in complex anatomical structures can be improved.

[0016] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the plasma surgical blade provided in the embodiments of this disclosure; Figure 2 This is a schematic diagram of the suction channel of the plasma surgical tip provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of the structure of the plasma surgical knife provided in the embodiments of this disclosure; Figure 4 This is another schematic diagram of the structure of the plasma surgical knife provided in this embodiment.

[0018] Explanation of reference numerals in the attached diagram: 100, plasma surgical blade head; 1, bracket; 2, electrode; 21, electrode block; 22, electrode head; 23, mesh-like suction hole; 231, through hole; 24, suction channel; 241, spiral guide plate; 3, suction tube; 4, handle; 5, blade shaft; 6, cable; 7, plug. Detailed Implementation

[0019] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0020] In this disclosure, unless otherwise stated, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings denote the same or similar elements, unless otherwise explained. The foregoing definitions are for explanation and illustration only and should not be construed as limiting the present disclosure.

[0021] According to exemplary embodiments of this disclosure, reference is made to Figures 1 to 4 As shown, a plasma surgical scalpel tip is provided, including a bracket 1 and an electrode 2; the bracket 1 is provided with a suction tube 3; the electrode 2 includes an electrode block 21 disposed on the bracket 1 and a plurality of electrode heads 22 disposed on the electrode block 21, the electrode block 21 having a grid-shaped suction hole 23 at one end near the electrode head 22, and a suction channel 24 disposed inside the electrode block 21, one end of the suction channel 24 being connected to the grid-shaped suction hole 23 and the other end being connected to the suction tube 3; the plurality of electrode heads 22 are evenly distributed circumferentially along the grid-shaped suction hole 23, and the ends of the plurality of electrode heads 22 facing away from the bracket 1 protrude from the outer surface of the electrode block 21.

[0022] Through the above technical solution, the plasma surgical scalpel head 100 disclosed herein includes two parts: a bracket 1 and an electrode 2. The bracket 1 serves as a basic support structure. The electrode 2 is the core component for realizing plasma cutting and ablation functions, and includes an electrode block 21 and multiple electrode heads 22. The electrode block 21 is fixed on the bracket 1. The suction channel 24 opened on the electrode block 21 is used to suction out exudate, necrotic tissue, and heat from the surgical area through negative pressure. The grid-like suction holes 23 set on the electrode block 21 are connected to the suction channel 24 to form a complete suction path. The grid-like suction holes 23 increase the suction area and, in conjunction with the circumferential distribution of the electrode heads 22, can efficiently suction exudate and necrotic tissue from multiple directions when the electrode heads 22 act on the tissue, reducing local accumulation and lowering the risk of blockage of the suction channel 24. This avoids tissue carbonization and nerve damage caused by heat accumulation in the surgical area and reduces the incidence of postoperative complications. Since the electrode heads 22 protrude from the outer surface of the electrode block 21, the adaptability and operational precision of the plasma surgical scalpel head 100 in complex anatomical structures can be improved.

[0023] In this disclosure, the number of electrode heads 22 can be set to three, four or five. The electrode heads 22 are evenly distributed, which increases the ablation area and helps to improve surgical efficiency.

[0024] According to exemplary embodiments of this disclosure, such as Figure 1 As shown, the mesh-like suction holes 23 may include multiple through holes 231, which are arranged in an array. This makes the layout of the through holes 231 more regular and the suction area more uniform, forming a comprehensive suction coverage on the surface of the electrode block 21, avoiding local suction dead zones, and ensuring that exudates and heat from all parts of the surgical area can be effectively discharged, further reducing the risk of blockage.

[0025] In the above technical solution, the through hole 231 can be constructed as a rectangular hole, a circular hole or an elliptical hole, and this disclosure does not impose any specific restrictions on it.

[0026] According to an exemplary embodiment of this disclosure, the aperture of the through hole 231 can be 0.3mm-1mm. For example, the aperture of the through hole 231 can be set to 0.3mm, 0.5mm or 1mm. In this way, larger pieces of necrotic tissue can be effectively blocked from directly entering the suction channel 24, avoiding blockage of the suction channel 24. At the same time, the aperture within this range allows exudate and small pieces of tissue to pass through. The center distance between two adjacent through holes 231 is 0.5mm-1mm. For example, the center distance between two adjacent through holes 231 can be 0.5mm or 0.8mm or 1mm. This ensures the density of the mesh-like suction holes 23 while preventing the electrode block 21 from reducing its structural strength due to too many openings.

[0027] In the above technical solution, by controlling the aperture and spacing of the through holes 231, both suction efficiency and structural strength can be taken into account. This can not only efficiently discharge exudates, but also reduce the blockage of the through holes 231 caused by large tissues, thus extending the stable working time of the plasma surgical blade 100.

[0028] According to exemplary embodiments of this disclosure, such as Figure 1 As shown, the end of electrode block 21 facing away from bracket 1 protrudes from the outer surface of bracket 1. This allows electrode block 21 and electrode head 22 to be closer to the target tissue, reducing the obstruction of the operating field of view by bracket 1, making it easier for doctors to observe the target area, while shortening the suction path of exudate, improving suction efficiency, and further reducing the risk of heat accumulation.

[0029] According to exemplary embodiments of this disclosure, such as Figure 1 As shown, the cross-sectional shape of the bracket 1 can be constructed as a circle or an ellipse, which can reduce friction and damage to surrounding tissues during insertion or operation, thereby improving the safety of the surgery.

[0030] According to an exemplary embodiment of this disclosure, the bracket 1 can be made of a polymer material, specifically polyetheretherketone (PEEK) or medical-grade plastic. PEEK has good insulation, corrosion resistance and biocompatibility. The bracket 1 made of polymer material ensures structural stability and safety.

[0031] According to exemplary embodiments of this disclosure, such as Figure 2 As shown, the suction channel 24 can be constructed as a gradient channel, and the aperture of the suction channel 24 gradually increases from the mesh-like suction holes 23 towards the interior of the suction channel 24. In other words, the suction channel 24 forms a funnel-shaped structure, which reduces airflow resistance within the suction channel 24, improves airflow flow, enhances suction efficiency, reduces tissue blockage within the suction channel 24, and ensures rapid heat dissipation, maintaining a low-temperature environment in the surgical area.

[0032] According to exemplary embodiments of this disclosure, such as Figure 2 As shown, a spiral guide plate 241 can be provided on the inner wall of the suction channel 24. The spiral guide plate 241 is used to guide the suction airflow to form a spiral flow. In the above technical solution, by providing the spiral guide plate 241, centrifugal force can be used to throw tissue particles toward the inner wall of the suction channel 24, avoiding the accumulation of tissue particles in the center of the suction channel 24 and forming a blockage; at the same time, the spiral airflow can prolong the contact time between heat and the inner wall of the suction channel 24, promote heat dissipation through the inner wall of the suction channel 24, enhance the heat dissipation effect, maintain the low temperature of the surgical area, and reduce thermal damage.

[0033] According to an exemplary embodiment of this disclosure, the inner wall of the suction channel 24 is coated with a polytetrafluoroethylene (PTFE) nano-coating. The PTFE nano-coating has extremely low surface energy and good corrosion resistance, which reduces the adhesion of exudate and tissue to the inner wall of the suction channel 24, making it easier for the inhaled substances to be discharged with the airflow, further reducing the probability of blockage. In other words, the PTFE nano-coating improves the anti-adhesion properties of the suction channel 24, reducing tissue residue and blockage. This helps extend the service life of the plasma surgical tip 100 and facilitates postoperative cleaning of the plasma surgical tip 100.

[0034] Based on the above technical solutions, such as Figure 3 and Figure 4 As shown, this disclosure also provides a plasma scalpel, including the aforementioned plasma scalpel head 100. The plasma scalpel may further include a handle 4, a blade 5, a suction tube 3, a cable 6, and a plug 7. The plasma scalpel head 100 is mounted on one end of the blade 5, and the other end of the blade 5 is connected to the handle 4. The suction tube 3 is sequentially passed through the handle 4 and the blade 5, and is connected to the suction channel 24. The plasma scalpel of this disclosure has all the beneficial effects of the aforementioned plasma scalpel head 100, which will not be repeated here.

[0035] In summary, the electrode head 22 of the plasma surgical tip 100 disclosed herein can improve the precision of operation in complex anatomical structures; the mesh-like suction holes 23, in conjunction with the gradient suction channel 24, increase the suction area and reduce the risk of blockage; while the spiral guide plate 241 and polytetrafluoroethylene coating further optimize the suction efficiency and reduce the probability of blockage. The overall structure is adapted to the needs of minimally invasive surgery, reduces postoperative complications, and improves surgical safety.

[0036] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0037] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0038] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A plasma surgical blade, characterized in that, Includes a bracket (1) and an electrode (2); The bracket (1) is provided with a suction tube (3); The electrode (2) includes an electrode block (21) disposed on the bracket (1) and a plurality of electrode heads (22) disposed on the electrode block (21). The electrode block (21) has a grid-shaped suction hole (23) at one end near the electrode head (22), and the electrode block (21) has a suction channel (24) inside. One end of the suction channel (24) is connected to the grid-shaped suction hole (23), and the other end is connected to the suction tube (3). The plurality of electrode heads (22) are evenly distributed around the circumference of the grid-shaped suction hole (23), and the end of the plurality of electrode heads (22) away from the bracket (1) protrudes from the outer surface of the electrode block (21).

2. The plasma surgical tip according to claim 1, characterized in that, The mesh-like suction hole (23) includes multiple through holes (231), which are arranged in an array.

3. The plasma surgical tip according to claim 2, characterized in that, The diameter of the through hole (231) is 0.3mm-1mm, and the center distance between two adjacent through holes (231) is 0.5mm-1mm.

4. The plasma surgical tip according to claim 2, characterized in that, The electrode block (21) protrudes from the outer surface of the bracket (1) at one end away from the bracket (1).

5. The plasma surgical tip according to claim 4, characterized in that, The cross-sectional shape of the bracket (1) is circular or elliptical.

6. The plasma surgical tip according to claim 5, characterized in that, The bracket (1) is made of polymer material.

7. The plasma surgical tip according to any one of claims 1 to 6, characterized in that, The attraction channel (24) is constructed as a gradient channel, and the aperture of the attraction channel (24) gradually increases from the mesh-like attraction hole (23) into the interior of the attraction channel (24).

8. The plasma surgical tip according to claim 7, characterized in that, The inner wall of the suction channel (24) is provided with a spiral guide plate (241), which is used to guide the suction airflow to form a spiral flow.

9. The plasma surgical tip according to claim 8, characterized in that, The inner wall of the suction channel (24) is coated with a polytetrafluoroethylene nano-coating.

10. A plasma surgical scalpel, characterized in that, Includes the plasma surgical blade according to any one of claims 1-9.

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