Radio frequency plasma operation electrode
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to radio frequency plasma operation electrode.
Background
With the development of modern medical technology, the low-temperature plasma knife resection is clinically applied, so that the method can be effectively applied to soft tissue operation treatment, the characteristics of the traditional operation can be kept, and the operation effect can be improved. The plasma radio frequency is the section with the frequency of 100Hz in the radio frequency, the low-temperature plasma system utilizes the energy generated by the high frequency of the plasma to excite the electrolyte between the plasma electrode and the tissue into a plasma state, charged particles in the plasma open intercellular molecular bond bonds, so that target tissue cells break the molecular bonds at low temperature (40-70 ℃), the cells are cracked by taking the molecules as units, the water of the cells is evaporated, the protein is denatured and necrotic, and the cells are gradually decomposed into carbohydrate and the like, thereby contracting and solidifying blood vessels around the tissue. Therefore, the plasma ablation can obtain good cutting and hemostasis effects, and the surgical trauma is low. Since this effect of the charged particles in the plasma is localized to the surface layer of the target tissue and is achieved at a relatively low temperature, thermal damage to surrounding tissue is minimized. The plasma radio frequency technology protects surrounding tissues for targeted therapy to the maximum extent, has the advantages of accuracy, minimal invasion, small adverse reaction and the like, and is widely applied to clinic at present, such as prostatectomy in urology department and the like, and otorhinolaryngology department is mainly used for tonsillectomy, adenoidectomy, turbinate hypertrophy of nasal turbinates, palatopharynoplasty, benign tumor of nasal cavity, vocal cord polyp, early glottic laryngeal carcinoma, pharyngeal neoplasm, tumor and the like.
The plasma cutter head used in the low-temperature plasma ablation is integrated in cutting, hemostasis, water inlet and suction functions, so that the time occupied by frequently replacing surgical instruments is saved to a great extent, the plasma cutter head depends on the stability of plasma generated at one end of an emitter of the cutter head in the cutting process, and the factor mainly depends on the uniform distribution degree of physiological saline at the cutter head. The current plasma tool bit delivery port is unilateral point design, opens a plurality of delivery ports through the utmost point unilateral of front end return circuit, and normal saline stretches to the tool bit from the mouth of a river of the belonging to of unilateral, however, still is difficult to keep the even parcel electrode tool bit of normal saline under this mode, has the dependence to normal saline intake rate simultaneously, and this undoubtedly causes the inconvenience of operation for the art person. Therefore, a plasma surgical electrode which can simply and efficiently wrap an electrode bit uniformly with physiological saline is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a radio frequency plasma operation electrode through setting up the honeycomb duct in plasma electrode tool bit department, realizes that normal saline covers the electrode tool bit comprehensively for plasma produces more evenly, in succession, when carrying out relevant operations such as the end of the nose cranium and flat gland, can realize more effectual cutting and melting to pathological change tissue, promotes the stability in use.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the radio frequency plasma operation electrode comprises a cutter head, a cutter bar and a handle which are connected in sequence, wherein the handle is connected with a power cable, a negative pressure suction tube and a water inlet tube;
the tool bit comprises a ceramic head and a plurality of electrode wires with the same electric potential arranged on the top surface of the front end of the ceramic head, the top surface of the ceramic head is provided with a suction hole, the electrode wires are U-shaped, two ends of the electrode wires penetrate through the top surface of the ceramic head and are arranged towards the inside of the tool bit, and the suction hole is positioned between the electrode wires;
the rear end of the ceramic head is movably connected with a diversion steel pipe, the front end face of the diversion steel pipe is arranged in parallel with the front end face of the ceramic head, a concave step is arranged in the middle of the diversion steel pipe, and a water outlet is formed in the concave step;
the rear end of the diversion steel pipe is connected with the cutter bar, and the cutter bar extends to the sunken step.
Furthermore, the top surface of the ceramic head is a plane, and the middle parts of the electrode wires are parallel to the top surface of the ceramic head.
Furthermore, the outer wall of the diversion steel pipe is provided with a limiting bulge.
Furthermore, the diversion steel pipe is a hollow round pipe, a suction pipe is arranged in the cutter bar, and the suction pipe penetrates through the diversion steel pipe and is connected with the suction hole.
Further, the cutter bar comprises a stainless steel pipe and an insulating layer wrapping the stainless steel pipe from inside to outside in sequence.
Furthermore, one end of the water inlet pipe is connected with the physiological saline storage device, and the other end of the water inlet pipe is connected with the water outlet.
Further, the suction tube is communicated with the negative pressure suction tube.
To sum up, the utility model has the advantages of it is following:
the utility model discloses a set up the peripheral water conservancy diversion steel pipe of seting up the delivery port, realize that normal saline covers the electrode tool bit comprehensively for tool bit department plasma produces more evenly, in succession, when carrying out relevant operations such as nose skull base and flat gland, realizes more effectual cutting of pathological change tissue and melts, promotes the stability in use.
Drawings
FIG. 1 is a schematic view of the structure of the tool bit of the RF plasma surgical electrode of the present invention;
FIG. 2 is a schematic cross-sectional view of the tool bit of the RF plasma surgical electrode of the present invention;
FIG. 3 is a schematic view of the structure of the diversion steel pipe of the present invention;
FIG. 4 is a schematic view of the RF plasma surgical electrode of the present invention;
FIG. 5 is a schematic view of the RF plasma surgical electrode of the present invention;
the device comprises a ceramic head 1, a limiting protrusion 1, an electrode wire 2, a suction hole 3, a flow guide steel pipe 4, a sunken step 5, a water outlet 6, a cutter bar 7, a handle 8, a power cable 9, a negative pressure suction pipe 10, a water inlet pipe 11, an insulating layer 12, a stainless steel pipe 13 and a suction pipe 14.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
In one embodiment of the present invention, as shown in fig. 1-5, there is provided a radio frequency plasma operation electrode, which comprises a knife head, a knife bar 7, a handle 8, a power cable 9, a vacuum suction tube 10 and a water inlet tube 11.
Wherein, the scalpel head is a radio frequency plasma scalpel head and is suitable for a radio frequency plasma scalpel electrode. The tool bit comprises a ceramic head 1 and a plurality of equipotential electrode wires 2 arranged on the top surface of the front end of the ceramic head 1; the top surface of the ceramic head 1 is provided with a suction hole 3; the electrode wires 2 are all arched outwards beyond the suction holes 3 to prevent the tissues cut in the operation process from blocking the suction holes 3; the top surface of the front end of the ceramic head 1 is a plane, and the electrode wires 2 are all parallel to the top surface of the ceramic head 1. It can be understood that, as shown in fig. 1, the wire electrode 2 is U-shaped, and both ends of the wire electrode are connected with an internal power cable through the ceramic head 1. The bent portion of the wire electrode 2 is provided on the surface of the ceramic head 1, and a plane formed by the bent portion is provided in parallel with the surface of the front end of the ceramic head 1.
In an optional embodiment of the present invention, the rear end of the ceramic head 1 is sleeved with the diversion steel pipe 4, and the position of the ceramic head is limited by the limiting protrusion 1-1, the front end surface of the diversion steel pipe 4 is parallel to the top surface of the front end of the ceramic head 1, the middle part of the diversion steel pipe 4 is the recessed step 5, the water outlets 6 are distributed around the recessed step 5, the physiological saline can flow to the tool bit from the plurality of water outlets 6 which are uniformly distributed, thereby effectively wrapping the tool bit and generating uniform plasma. As shown in fig. 3, the top surface of the front end of the draft steel tube 4 may be an oblique section, and the oblique section needs to be arranged parallel to the surface of the front end of the ceramic head 1. The middle part of the diversion steel pipe 4 is sunken and is arranged in the shape of a sunken step 5, so that the structure is assembled and the water outlet effect is realized.
In an optional embodiment of the present invention, the exterior of the knife bar 7 is provided with an insulating layer 12, the interior is provided with a stainless steel tube 13, and the stainless steel tube 13 is wrapped by the insulating layer 12. The front end of the cutter bar 7 is connected with the rear end of the diversion steel pipe 4 and extends to the position of the sunken step 5, so that the physiological saline from the water outlets 6 distributed around the sunken step 5 can flow out from the connection position of the front end of the cutter bar 7 and the sunken step 5, and the rear end of the cutter bar 7 is connected with the handle 8. The rear end of the handle 8 is connected with a power cable 9, a negative pressure suction tube 10 and a water inlet tube 11. A suction tube 14 is arranged in the cutter bar 7, the suction tube 14 is connected with the suction hole 3, and the minced tissue can be sucked along the suction tube 14. Wherein, the power cable 9 is connected with the electrode wire 2 and also connected with the loop pole of the stainless steel pipe 13; the water inlet pipe is connected with a water inlet channel, the water inlet channel is a communication part between the suction pipe 14 and the stainless steel pipe 13, and meanwhile, disinfectant water such as physiological saline can be discharged from the part between the suction pipe 14 and the stainless steel pipe 13 to the water outlet 6 from the water outlet 6.
While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.