Low thermal injury radio frequency plasma scalpel

Abstract

The utility model discloses a low heat damage's radio frequency plasma scalpel head, include: the head, handle, outer suction pipe, flush pipe, power cord, the head includes the sword pole, installs the electrode base in the sword pole front end, installs the working electrode on the electrode base, the insulating layer is attached on the sword pole, respectively set up in the inner suction pipe of sword pole, electrode insulation pipe, the electrode base is provided with suction passage, and the inner suction pipe is connected with suction passage, power cord is connected with working electrode, sword pole electricity respectively. The utility model discloses through being provided with the exposed water hole in the sword pole front and back, makes physiological saline can more even flow to the sword pole end face and working electrode, can make the intensity stability of excited plasma, promotes the cutting, ablation efficiency of head, reduces the heat damage simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency plasma surgical knife technology, and in particular to a radio frequency plasma surgical knife with low thermal damage. Background Technology

[0002] Radiofrequency plasma scalpels are commonly used surgical cutting and ablation medical devices. They work by energizing a working electrode and a return electrode with saline solution, simultaneously generating plasma to cut and ablate tissue. The working electrode of a radiofrequency plasma scalpel is usually mounted on an insulated electrode base. Saline solution flows from the scalpel shaft to the working electrode to achieve conductivity between the working electrode and the return electrode. However, most existing scalpel shafts have a single-sided water outlet design, achieved by opening several outlets on one side of the shaft's front end. Figure 1 and Figure 2 As shown, saline solution spreads from one outlet to the blade tip. However, this method cannot ensure that the saline solution evenly coats the working blade end face and electrode at various angles. When there is a local shortage of saline solution at the edge of the blade end face or the working electrode, it can cause significant thermal damage to the tissue, and even cause yellowing of the cutting and ablation areas, prolonging the healing period.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a radio frequency plasma scalpel with low thermal damage, which allows physiological saline to flow more evenly to the end face of the scalpel shaft and the working electrode, making the excited plasma more stable, reducing thermal damage to the scalpel shaft and the working electrode, and without increasing the volume of the scalpel tip.

[0005] The technical solution of this utility model is as follows: A low-thermal-damage radiofrequency plasma surgical scalpel is provided, comprising: a scalpel head, a handle, an external suction tube, an irrigation tube, and a power cord; the scalpel head includes: a scalpel shaft, an electrode base mounted at the front end of the scalpel shaft, a working electrode mounted on the electrode base, an insulating layer attached to the scalpel shaft, and an internal suction tube and an electrode insulating tube respectively disposed within the scalpel shaft; the electrode base is provided with a suction channel, and the internal suction tube communicates with the suction channel; the power cord is electrically connected to the working electrode and the scalpel shaft respectively; exposed water outlets are provided on both the front and back sides of the scalpel shaft. The portion of the working electrode inside the scalpel shaft is covered by the electrode insulating tube; the exposed water outlets on both the front and back sides of the scalpel shaft allow saline solution to flow out evenly and from multiple directions from the scalpel shaft, thereby reducing thermal damage to the scalpel shaft. The saline solution flows through the electrode base to the working electrode, thus forming a circuit with the scalpel shaft (return electrode). After energization, plasma can be excited for cutting and ablation. The suction channel is used to aspirate the cut and ablated tissue. Preferably, by further providing flow channels and / or flow ribs on the electrode base, physiological saline can flow more comprehensively to the working electrode, which can make the excited plasma more stable and reduce electrode thermal damage.

[0006] The cutter bar has exposed water outlet holes on both its front and back sides, allowing physiological saline to flow more evenly and comprehensively to the working electrode through guide ribs and / or guide grooves. This reduces thermal damage to the cutter tip without increasing the volume of the cutter tip.

[0007] The water outlet includes a front water outlet on the front side of the blade and a back water outlet on the back side of the blade. Both the front and back water outlets allow physiological saline to flow stably to the working electrode of the electrode base. When the blade has both front and back water outlets, the physiological saline can flow more evenly and stably to the working electrode through the guide ribs and / or guide grooves.

[0008] The front water outlet is a forward-sloping three-hole anti-gravity structure, and the rear water outlet is a round hole or other irregularly shaped hole, preferably a runway hole.

[0009] Furthermore, the working electrode is located in front of the suction channel.

[0010] The blade, external suction tube, flushing tube, and power cord are all threaded onto the handle. The external suction tube is connected to the internal suction tube, the flushing tube is connected to the blade rod, and the power cord is electrically connected to the blade rod and the working electrode.

[0011] This invention provides a low-thermal-damage radiofrequency plasma surgical tip. By simultaneously providing water outlets on the front and back of the blade, physiological saline can flow more evenly and from multiple directions to the blade end face and the working electrode, stabilizing the intensity of the excited plasma and reducing thermal damage to the blade and the working electrode. Furthermore, by providing flow channels and / or flow ribs on the electrode base, physiological saline can flow more comprehensively to the working electrode, further reducing thermal damage to the working electrode. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of an existing radiofrequency plasma surgical tip;

[0013] Figure 2 for Figure 1 Another structural diagram from a different perspective;

[0014] Figure 3 This is a schematic diagram of the structure of an embodiment of the low-thermal-damage radiofrequency plasma surgical tip of this utility model;

[0015] Figure 4 for Figure 3 A structural schematic diagram from another perspective of the embodiment;

[0016] Figure 5 for Figure 3 Cross-sectional view of the embodiment;

[0017] Figure 6 A schematic diagram of one embodiment of the electrode base;

[0018] Figure 7 This is a schematic diagram of another embodiment of the electrode base;

[0019] Figure 8 A schematic diagram of the structure of a radiofrequency plasma surgical scalpel;

[0020] Figure 9 This is a schematic diagram of the front structure of a radiofrequency plasma surgical scalpel;

[0021] Figure 10 This is a schematic diagram of the back of a radiofrequency plasma surgical scalpel. Detailed Implementation

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Please see Figures 3-10This embodiment provides a low-thermal-damage radiofrequency plasma surgical blade, comprising: a blade head, a handle 22, an external suction tube, an irrigation tube, and a power cord; the blade head includes: a blade 10, an electrode base 11 mounted on the front end of the blade 10, a working electrode 12 mounted on the electrode base 11, an insulating layer 13 attached to the blade 10, and an internal suction tube 14 and an electrode insulating tube 16 respectively disposed within the blade 10; the electrode base 11 is provided with a suction channel 17, and the internal suction tube 14 communicates with the suction channel 17; the power cord is electrically connected to the working electrode 12 and the blade 10; the blade 10 has exposed water outlet holes on both its front and back sides. The exposed water outlet holes on both the front and back sides of the blade 10 allow physiological saline to flow out of the blade 10 evenly and from multiple directions, thereby reducing thermal damage to the blade 10. Physiological saline flows through the electrode base 11 to the working electrode 12, thus forming a circuit with the blade 10 (circuit electrode). When energized, plasma is generated for cutting and ablation. The suction channel 17 is used to aspirate the cut and ablated tissue. Preferably, by further providing a guide groove 19 and / or guide ribs 18 on the electrode base 11, the physiological saline can flow more comprehensively to the working electrode 12, making the generated plasma more stable and reducing electrode thermal damage.

[0024] In this embodiment, the water outlet includes a front water outlet 20 disposed on the front side of the blade 10 and a back water outlet 21 disposed on the back side of the blade 10. Both the front water outlet 20 and the back water outlet 21 allow physiological saline to flow stably to the working electrode 12 of the electrode base 11. When the blade 10 has both the front water outlet 20 and the back water outlet 21, the physiological saline can flow more evenly and stably to the working electrode 12 through the guide ribs 18 and / or the guide grooves 19.

[0025] In this embodiment, the front and back of the blade 10 are provided with exposed water outlet holes, allowing physiological saline to flow more evenly and comprehensively to the working electrode 12 through the guide ribs 18 and / or guide grooves 19. This reduces thermal damage to the blade tip without increasing the volume of the blade tip.

[0026] In this embodiment, the front water outlet is a forward-sloping anti-gravity three-hole design, and the rear water outlet is a round hole or other irregularly shaped hole, preferably a runway hole.

[0027] In this embodiment, the working electrode 12 is positioned horizontally in front of the suction channel 17. There are three working electrodes 12.

[0028] In this embodiment, the blade, external suction tube 23, flushing tube 24, and power cord 25 are all threaded onto the handle 22. The external suction tube 23 is connected to the internal suction tube 14, the flushing tube 24 is connected to the blade rod 10, and the power cord 25 is electrically connected to the blade rod 10 and the working electrode 12.

[0029] In summary, this invention provides a low-thermal-damage radiofrequency plasma surgical tip. By simultaneously providing front and rear water outlets on the blade, physiological saline can flow more evenly and from multiple directions to the working electrode, stabilizing the intensity of the excited plasma and reducing thermal damage to the blade and working electrode. Furthermore, by incorporating flow channels and / or ribs on the electrode base, physiological saline can flow more comprehensively to the working electrode, further reducing thermal damage to the working electrode.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-thermal-damage radiofrequency plasma surgical scalpel, characterized in that, include: Blade head, handle, external suction tube, flushing tube, power cord; The cutter head includes: a cutter bar, an electrode base mounted at the front end of the cutter bar, a working electrode mounted on the electrode base, an insulating layer attached to the cutter bar, and an inner suction tube and an electrode insulating tube respectively disposed inside the cutter bar; The electrode base is provided with a suction channel, and the inner suction tube is connected to the suction channel; the power cord is electrically connected to the working electrode and the tool bar respectively; the front and back of the tool bar are provided with exposed water outlet holes.

2. The low-thermal-damage radiofrequency plasma surgical scalpel according to claim 1, characterized in that, The water outlet includes: a front water outlet on the front side of the cutter bar and a back water outlet on the back side of the cutter bar; the front water outlet is a forward-sloping anti-gravity three-hole, and the back water outlet is a round hole or other irregularly shaped hole.

3. The low-thermal-damage radiofrequency plasma surgical scalpel according to claim 1, characterized in that, The working electrode is located in front of the suction channel, and the portion of the working electrode inside the tool holder is covered by an electrode insulating tube.

4. The low-thermal-damage radiofrequency plasma surgical scalpel according to claim 1, characterized in that, The electrode base is provided with guide ribs and / or guide grooves.

5. The low-thermal-damage radiofrequency plasma surgical scalpel according to claim 1, characterized in that, The blade, external suction tube, flushing tube, and power cord are all threaded onto the handle. The external suction tube is connected to the internal suction tube, the flushing tube is connected to the blade rod, and the power cord is electrically connected to the blade rod and the working electrode.

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