Radiofrequency plasma surgical electrode

Abstract

The invention relates to a surgical electrode, and discloses a radio frequency plasma surgical electrode, comprising an electrode handle, a catheter connected to the top of the electrode handle and an electrode head located above the catheter, the electrode handle being connected to a power cord, and characterized in that: a liquid extraction pipeline is provided on the catheter, a sieve plate is movably connected to the inlet of the liquid extraction pipeline, a first negative pressure pipeline is connected to the electrode handle, the outer end of the first negative pressure pipeline is movably connected to the air intake port of a negative pressure structure, the first negative pressure pipeline is communicated with the liquid extraction pipeline, a first channel is also provided on the catheter, a rotating shaft is rotatably connected in the first channel, a spiral sheet is provided outside the rotating shaft, and the rotating shaft is driven to rotate by a driving structure. The invention uses a rotatable spiral sheet to suck waste tissue from a surgical position into a storage channel, and simultaneously absorbs waste tissue fluid through the cooperation of the liquid extraction pipeline and the negative pressure mechanism, and separately processes the mixed tissue fluid and tissue to avoid blockage.

Description

Technical Field

[0001] The invention relates to a surgical electrode, in particular to a radio frequency plasma surgical electrode. Background Art

[0002] Radio frequency plasma surgical electrodes utilize electrode discharge to eliminate and melt part of body tissue. Existing surgical electrodes produce waste tissue and tissue fluid during use. Treatment methods include manual cleaning and negative pressure suction. However, for large-scale tissue ablation surgery, there is a lot of waste tissue and tissue fluid. If only negative pressure suction is used, the pipeline is easily blocked when there is a lot of waste tissue. In view of this, the present invention proposes a radio frequency plasma surgical electrode. Summary of the invention

[0003] To solve the above technical problems: In the process of using surgical electrodes, for large-scale tissue ablation surgery, a lot of waste tissue and tissue fluid are generated. If only negative pressure suction is used, the pipeline may be easily blocked if there is a lot of waste tissue.

[0004] The present invention provides a radio frequency plasma surgical electrode, comprising an electrode handle, a catheter connected to the top of the electrode handle and an electrode head located above the catheter, wherein the electrode handle is connected to a power cord and is characterized in that: a liquid extraction pipeline is provided on the catheter, a sieve plate is movably connected to the inlet of the liquid extraction pipeline, a first negative pressure pipeline is connected to the electrode handle, an outer end of the first negative pressure pipeline is movably connected to the air intake port of a negative pressure structure, the first negative pressure pipeline is communicated with the liquid extraction pipeline, a first channel is further provided on the catheter, a rotating shaft is rotatably connected in the first channel, a spiral sheet is provided on the outside of the rotating shaft, and the rotating shaft is driven to rotate by a driving structure.

[0005] Principle of use: the motor can drive the rotating shaft to rotate, and the rotating spiral blades will suck the waste tissue into the first channel after contacting the waste tissue. At the same time, the rotating spiral blades have the function of crushing and stirring, and can process the waste tissue. At the same time, the liquid extraction pipeline is connected to the negative pressure mechanism. After the negative pressure mechanism is started, the liquid extraction pipeline generates negative pressure, and the waste tissue and tissue fluid are attracted to the inlet of the liquid extraction pipeline. The waste tissue is blocked by the sieve plate and the tissue fluid enters the liquid extraction pipeline. It is worth mentioning that in order to adapt to the detachable connecting block, a first friction plate and a second friction plate that can move up and down are also provided between the motor and the rotating shaft. When it is necessary to provide driving force for the rotating shaft, the second friction plate moves up and contacts with the first friction plate, thereby driving the first friction plate to rotate through friction. When the connecting block needs to be removed, the second friction plate is no longer in contact with the first friction plate, and the connecting block can be removed. Finally, the first channel is connected to the first negative pressure pipeline through the ventilation pipeline and the second negative pressure pipeline, and the negative pressure generated by the negative pressure mechanism can be used to assist the movement of the waste tissue in the first channel.

[0006] As a further improvement of the present technical solution, a connecting groove is provided on the conduit, a plurality of side limit grooves are provided in the connecting groove, a plurality of side limit blocks are provided on the side of the connecting block, the side limit blocks are inserted in the side limit grooves, and the first channel is provided on the connecting block.

[0007] As a further improvement of the present technical solution, a first friction plate is connected below the rotating shaft, a first swivel is connected outside the first friction plate, the first swivel is rotatably connected in the first channel, a second friction plate is provided below the first friction plate, a connecting rod is connected below the second friction plate, a bump is connected to the tail end of the connecting rod, a slide cylinder is provided below the connecting rod, the connecting rod is slidably connected in the slide cylinder, a motor is coaxially connected below the slide cylinder, and the motor is fixed in the electrode handle.

[0008] As a further improvement of the present technical solution, a lifting groove is provided on the conduit, a fixed plate is provided on the lifting groove, a connecting plate is slidably connected in the lifting groove, a second swivel is also provided on the connecting rod, the second swivel is rotatably connected to the connecting plate, a fixed guide rod and a rotatably connected threaded rod are provided under the fixed plate, the connecting plate passes through the guide rod, and the connecting plate and the threaded rod are threadedly connected.

[0009] As a further improvement of the technical solution, in order to prevent the connection block from falling off from the connection groove during use, the connection block and the catheter are provided with external threads, and the catheter sleeve is provided with an outer ring, which is threadedly connected to the external thread.

[0010] As a further improvement of the technical solution, a storage box is provided in the middle section of the first negative pressure pipe, and docking ports are provided at both ends of the storage box. The docking ports are plugged into the first negative pressure pipe, and the docking ports are located at a high position of the storage box.

[0011] As a further improvement of the present technical solution, a base is provided under the storage box, a bottom groove is provided on the base, the storage box is inserted into the bottom groove, a clamping block is also provided on the base, the first negative pressure pipe is inserted into the arc groove on the clamping block, and a plurality of suction cups are provided under the base.

[0012] As a further improvement of the present technical solution, a docking groove is provided on the inner side of the connecting groove, and a ventilation pipe is also provided in the duct, and a second negative pressure pipe is connected to the ventilation pipe, and the second negative pressure pipe is connected to the first negative pressure pipe, and the connection position between the second negative pressure pipe and the first negative pressure pipe is located in front of the storage box, and a vent is provided on the connecting block, and the vent is inserted into the docking groove.

[0013] As a further improvement of the technical solution, a plurality of connecting rings are sleeved on the rotating shaft, a connecting piece is connected to the side of the connecting ring, and the other end of the connecting piece is connected to the connecting block.

[0014] As a further improvement of the technical solution, there are multiple electrode heads, and the electrode heads are arranged obliquely.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention uses a rotatable spiral blade to suck waste tissue from the surgical site into the storage channel, and at the same time absorbs waste tissue fluid through the cooperation of the liquid extraction pipeline and the negative pressure mechanism, and separates the mixed tissue fluid and tissue to avoid blockage.

[0017] 2. The present invention provides a detachable connection block, which facilitates the cleaning of the connection block storing waste tissues. At the same time, the first friction plate and the second friction plate that can move up and down cooperate with the motor to provide power for the rotating shaft and the spiral sheet.

[0018] 3. The present invention connects the negative pressure mechanism with the storage channel through the ventilation duct, and provides a certain negative pressure environment in the storage channel through the negative pressure mechanism, so as to facilitate the movement of discarded tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the top section of the catheter of the present invention;

[0021] Figure 3 It is a schematic diagram of the disassembly of the catheter part structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the connection block structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the middle section of the catheter of the present invention;

[0024] Figure 6 It is a schematic diagram of the driving structure of the present invention;

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the connection block of the present invention;

[0026] Figure 8 It is a schematic diagram of the storage box structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the base structure of the present invention.

[0028] Description of reference numerals:

[0029] 10. Electrode handle; 11. Power cord; 12. First negative pressure pipeline; 13. Second negative pressure pipeline; 14. Catheter; 15. Electrode head;

[0030] 20. Connecting block; 21. Side limiting block; 22. Storage channel; 23. Connecting piece; 24. Connecting ring; 25. Connecting groove; 26. Side limiting groove; 27. Ventilation port;

[0031] 30. Storage box; 31. Base; 32. Docking port; 33. Bottom slot; 34. Card block; 35. Suction cup;

[0032] 40. spiral sheet; 41. rotating shaft; 42. first friction plate; 43. first rotating ring; 44. second friction plate; 45. connecting rod; 46. second rotating ring; 47. protrusion; 48. slide cylinder; 49. motor;

[0033] 50, outer ring; 51, connecting plate; 52, threaded rod; 53, fixing plate; 54, guide rod; 55, lifting slot;

[0034] 60. Docking groove; 61. Ventilation pipe; 62. Liquid extraction pipe; 63. Sieve plate. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, 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 of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] Example

[0038] See also Figure 1-Figure 7As shown, this embodiment provides a radio frequency plasma surgical electrode, including an electrode handle 10, a catheter 14 connected to the top of the electrode handle 10 and an electrode head 15 located above the catheter 14, the electrode handle 10 is connected to a power cord 11 for supplying power to the electrode head 15, the catheter 14 is provided with a liquid extraction pipeline 62, the inlet of the liquid extraction pipeline 62 is movably connected with a sieve plate 63, the electrode handle 10 is connected with a first negative pressure pipeline 12, the outer end of the first negative pressure pipeline 12 is movably connected to the suction port of the negative pressure structure, the first negative pressure pipeline 12 is connected to the liquid extraction pipeline 62, the catheter 14 is also provided with a first channel 22, the first channel 22 is rotatably connected with a rotating shaft 41, the rotating shaft 41 is provided with a spiral piece 40, the spiral piece 40 is located at the inlet of the first channel 22, at least kept flush with the first channel 22, so as to ensure that the tissue can contact with the rotating spiral piece 40, and the rotating shaft 41 is driven to rotate by the driving structure.

[0039] Working principle: The rotating spiral blade 40 will suck the waste tissue into the first channel 22 after contacting the waste tissue. At the same time, the rotating spiral blade 40 has a crushing and stirring function, which can process the waste tissue. At the same time, the liquid extraction pipeline 62 is connected to the negative pressure mechanism. After the negative pressure mechanism is started, the liquid extraction pipeline 62 generates negative pressure, and the waste tissue and tissue fluid are attracted to the inlet of the liquid extraction pipeline 62. The waste tissue is blocked by the sieve plate 63 and the tissue fluid enters the liquid extraction pipeline 62.

[0040] In addition, see Figure 2 , Figure 3 and Figure 7 As shown, in order to facilitate cleaning and disinfection of the first channel 22, a connecting groove 25 is provided on the catheter 14, and a plurality of side limit grooves 26 are provided in the connecting groove 25. A plurality of side limit blocks 21 are provided on the side of the connecting block 20, and the side limit blocks 21 are inserted into the side limit grooves 26. The first channel 22 is provided on the connecting block 20, and the connecting block 20 is conveniently removed by a movable connection, so as to clean and disinfect the first channel 22.

[0041] For further information, see Figure 4 and Figure 6As shown, in order to adapt to the active connection of the connecting block 20, a first friction plate 42 is connected below the rotating shaft 41, a first rotating ring 43 is connected outside the first friction plate 42, the first rotating ring 43 is rotatably connected in the first channel 22, a second friction plate 44 is provided below the first friction plate 42, a connecting rod 45 is connected below the second friction plate 44, a protrusion 47 is connected to the rear end of the connecting rod 45, a slide cylinder 48 is provided below the connecting rod 45, the connecting rod 45 is slidably connected in the slide cylinder 48, a motor 49 is coaxially connected below the slide cylinder 48, and the motor 49 is fixed in the electrode handle 10, and the protrusion 47 is slidably connected to the inner wall of the slide cylinder 48. When the motor 49 drives the slide cylinder 48 to rotate, the protrusion 47 can synchronously drive the connecting rod 45 to rotate. When it is necessary to provide driving force for the rotating shaft 41, the second friction plate 44 moves up and contacts with the first friction plate 42, thereby driving the first friction plate 42 to rotate through friction. When it is necessary to remove the connecting block 20, the second friction plate 44 is no longer in contact with the first friction plate 42, and the connecting block 20 can be removed.

[0042] For further information, see Figure 5 and Figure 7 As shown, in order to facilitate the control of the movement of the connecting rod 45 from the outside, a lifting groove 55 is opened on the guide tube 14, and a fixed plate 53 is provided on the lifting groove 55. A connecting plate 51 is slidably connected in the lifting groove 55. A second swivel 46 is also provided on the connecting rod 45, and the second swivel 46 is rotatably connected to the connecting plate 51. A fixed guide rod 54 and a rotatably connected threaded rod 52 are provided below the fixed plate 53. The connecting plate 51 passes through the guide rod 54, and the connecting plate 51 and the threaded rod 52 are threadedly connected. Rotating the threaded rod 52 can drive the connecting plate 51 to move upward through the threaded connection, thereby driving the connecting rod 45 to move until the second friction plate 44 contacts the first friction plate 42. At the same time, the movement of the connecting plate 51 is stabilized by the setting of the guide rod 54.

[0043] In addition, see Figure 5 As shown, in order to prevent the connection block 20 from falling off from the connection groove 25 during use, the connection block 20 and the catheter 14 are provided with external threads, and the outer sleeve of the catheter 14 is provided with an outer ring 50, and the outer ring 50 is threadedly connected to the external threads. The external threads on the connection block 20 and the catheter 14 are an integrally formed whole. The outer ring 50 is rotated so that the outer ring 50 can cover the outside of the catheter 14 and the connection block 20 at the same time, thereby limiting the connection block 20 and preventing it from falling off.

[0044] For further information, see Figure 8As shown, in order to prevent the liquid in the liquid extraction pipe 62 from blocking the first negative pressure pipe 12 and to ensure that the negative pressure mechanism can continuously provide negative pressure for the liquid extraction pipe 62, a storage box 30 is provided in the middle section of the first negative pressure pipe 12, and docking ports 32 are provided at both ends of the storage box 30. The docking ports 32 are plugged into the first negative pressure pipe 12, and the docking ports 32 are located at a high position of the storage box 30. When the extracted tissue fluid flows along the liquid extraction pipe 62 and the first negative pressure pipe 12, it will flow into the bottom of the storage box 30. The docking ports 32 are set at a high position of the storage box 30 to avoid contact with the tissue fluid, so that the negative pressure in the negative pressure mechanism can be sustained in the storage box 30.

[0045] For further information, see Fig. 9 As shown, in order to ensure that the docking port 32 is at a high position of the storage box 30, a base 31 is provided below the storage box 30, and a bottom groove 33 is provided on the base 31. The storage box 30 is inserted into the bottom groove 33. A clamping block 34 is also provided on the base 31. The first negative pressure pipe 12 is inserted into the arc groove on the clamping block 34. A plurality of suction cups 35 are provided below the base 31. The positions of the storage box 30 and the docking port 32 are limited by the clamping action, and at the same time, the suction cups 35 are adsorbed on the plane to reduce their movement and avoid bending of the first negative pressure pipe 12 to affect the negative pressure suction efficiency.

[0046] For further information, see Figure 7 and Figure 8 As shown, in order to facilitate the inward movement of the discarded tissue in the first channel 22, a docking groove 60 is opened on the inner side of the connecting groove 25, and a ventilation pipe 61 is also opened in the conduit 14, and the ventilation pipe 61 is connected to the second negative pressure pipe 13, and the second negative pressure pipe 13 is connected to the first negative pressure pipe 12, and the connection position between the second negative pressure pipe 13 and the first negative pressure pipe 12 is located in front of the storage box 30, and a vent 27 is opened on the connecting block 20, and the vent 27 is inserted in the docking groove 60. The first channel 22 is connected to the working unit of the negative pressure mechanism through the second negative pressure pipe 13 and the ventilation pipe 61, which can provide a certain negative pressure for the first channel 22, so that the movement of the discarded tissue in the first channel 22 is smoother.

[0047] For further information, see Figure 7 As shown, in order to support the rotating shaft 41 and prevent it from shaking or breaking, a plurality of connecting rings 24 are sleeved on the rotating shaft 41, and a connecting sheet 23 is connected to the side of the connecting ring 24, and the other end of the connecting sheet 23 is connected to the connecting block 20. The connecting sheet 23 is a vertically arranged sheet structure, which can reduce the interference with the waste tissue moving in the first channel 22 and avoid blockage. At the same time, the plurality of connecting rings 24 cooperate with the support of the connecting sheet 23 to stabilize the longer rotating shaft 41 and avoid shaking.

[0048] For further information, see Figure 2As shown, in order to prevent the first channel 22 from contacting normal tissue, multiple electrode heads 15 are provided, and the electrode heads 15 are arranged at an angle. Specifically, in this embodiment, the electrode head 15 is inclined toward the position of the first channel 22, so as to cover the top of the first channel 22. The tissue contacting the first channel 22 will first contact the electrode head 15 and be ablated, thereby avoiding the problem of negative pressure in the electrode head 15 adsorbing normal tissue.

[0049] A radio frequency plasma surgical electrode of the present embodiment, when in use, firstly plug the power cord 11 into the power plug board, and at the same time connect the first negative pressure pipe 12 to the negative pressure structure, and after starting the power supply of the motor 49, the motor 49 drives the rotating shaft 41 to rotate, and the rotating spiral blade 40 will suck the waste tissue into the first channel 22 after contacting with the waste tissue, and at the same time, the rotating spiral blade 40 has a crushing and stirring function, which can process the waste tissue, and at the same time, the liquid extraction pipe 62 is connected to the negative pressure mechanism, and after the negative pressure mechanism is started, the liquid extraction pipe 62 generates negative pressure, and the waste tissue and tissue fluid are attracted to the inlet of the liquid extraction pipe 62, and the waste tissue is blocked by the sieve plate 63 while the tissue fluid enters the liquid extraction pipe 62. It is worth noting that in order to adapt to the detachable connecting block 20, a first friction plate 42 and a second friction plate 44 that can move up and down are also provided between the motor 49 and the rotating shaft 41. When it is necessary to provide driving force for the rotating shaft 41, the second friction plate 44 moves up and contacts with the first friction plate 42, thereby driving the first friction plate 42 to rotate through friction. When it is necessary to remove the connecting block 20, the second friction plate 44 is no longer in contact with the first friction plate 42, and the connecting block 20 can be removed. Finally, the first channel 22 is connected to the first negative pressure pipe 12 through the ventilation pipe 61 and the second negative pressure pipe 13. The negative pressure generated by the negative pressure mechanism can be used to assist the movement of waste tissue in the first channel 22 to avoid blockage.

[0050] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A radio frequency plasma surgical electrode, comprising an electrode handle (10), a catheter (14) connected above the electrode handle (10), and an electrode head (15) located above the catheter (14), wherein the electrode handle (10) is connected to a power cord (11), and characterized in that: The catheter (14) is provided with a liquid extraction pipeline (62), and a sieve plate (63) is movably connected to the inlet of the liquid extraction pipeline (62). The electrode handle (10) is connected with a first negative pressure pipeline (12), and the outer end of the first negative pressure pipeline (12) is movably connected to the air inlet of the negative pressure structure, and the first negative pressure pipeline (12) is communicated with the liquid extraction pipeline (62). The catheter (14) is also provided with a first channel (22), and a rotating shaft (41) is rotatably connected in the first channel (22), and a spiral sheet (40) is provided on the outside of the rotating shaft (41), and the rotating shaft (41) is driven to rotate by a driving structure; the catheter (14) is provided with a connecting groove (25), and a plurality of side limit grooves (26) are provided in the connecting groove (25), and a plurality of side limit blocks (21) are provided on the side of the connecting block (20), and the side limit blocks (21) are inserted into the side limit grooves (26), and the first channel (22) is provided on the connecting block (20).

2. The radio frequency plasma surgical electrode according to claim 1, characterized in that: A first friction plate (42) is connected below the rotating shaft (41), a first rotating ring (43) is externally connected to the first friction plate (42), the first rotating ring (43) is rotatably connected in the first channel (22), a second friction plate (44) is provided below the first friction plate (42), a connecting rod (45) is connected below the second friction plate (44), a protrusion (47) is connected to the rear end of the connecting rod (45), a slide cylinder (48) is provided below the connecting rod (45), the connecting rod (45) is slidably connected in the slide cylinder (48), a motor (49) is coaxially connected below the slide cylinder (48), and the motor (49) is fixed in the electrode handle (10).

3. The radio frequency plasma surgical electrode according to claim 2, characterized in that: The guide tube (14) is provided with a lifting groove (55), a fixing plate (53) is provided on the lifting groove (55), a connecting plate (51) is slidably connected in the lifting groove (55), a second rotating ring (46) is further provided on the connecting rod (45), the second rotating ring (46) is rotatably connected to the connecting plate (51), a fixed guide rod (54) and a rotatably connected threaded rod (52) are provided below the fixing plate (53), the connecting plate (51) passes through the guide rod (54), and the connecting plate (51) and the threaded rod (52) are threadedly connected.

4. The radio frequency plasma surgical electrode according to claim 1, characterized in that: In order to prevent the connection block (20) from falling out of the connection groove (25) during use, the connection block (20) and the catheter (14) are provided with external threads, and the catheter (14) is provided with an outer ring (50) on its outer sleeve, and the outer ring (50) is threadedly connected to the external threads.

5. The radio frequency plasma surgical electrode according to claim 1, characterized in that: A storage box (30) is provided in the middle section of the first negative pressure pipe (12), and docking ports (32) are provided at both ends of the storage box (30). The docking ports (32) are plugged into the first negative pressure pipe (12), and the docking ports (32) are located at a high position of the storage box (30).

6. The radio frequency plasma surgical electrode according to claim 5, characterized in that: A base (31) is provided below the storage box (30), a bottom groove (33) is provided on the base (31), the storage box (30) is inserted into the bottom groove (33), a clamping block (34) is further provided on the base (31), the first negative pressure pipe (12) is inserted into the arc groove on the clamping block (34), and a plurality of suction cups (35) are provided below the base (31).

7. The radio frequency plasma surgical electrode according to claim 1, characterized in that: A docking groove (60) is provided inside the connecting groove (25), and a ventilation pipe (61) is also provided inside the conduit (14). The ventilation pipe (61) is connected to a second negative pressure pipe (13), and the second negative pressure pipe (13) is connected to the first negative pressure pipe (12). The connection position between the second negative pressure pipe (13) and the first negative pressure pipe (12) is located in front of the storage box (30). A vent (27) is provided on the connecting block (20), and the vent (27) is plugged into the docking groove (60).

8. The radio frequency plasma surgical electrode according to claim 1, characterized in that: A plurality of connecting rings (24) are sleeved on the rotating shaft (41), a connecting piece (23) is connected to the side surface of the connecting ring (24), and the other end of the connecting piece (23) is connected to the connecting block (20).

9. The radio frequency plasma surgical electrode according to claim 7, characterized in that: A plurality of electrode heads (15) are provided, and the electrode heads (15) are arranged obliquely.

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