CN213606853U

CN213606853U - Bipolar radio frequency surgical knife head

Info

Publication number: CN213606853U
Application number: CN202021649994.7U
Authority: CN
Inventors: 李强; 吉锋辉
Original assignee: Xi'an Jiewei Medical Technology Co ltd
Current assignee: Xi'an Jiewei Medical Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-07-06
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a bipolar radio frequency surgical knife head, which comprises an electrode knife head component and an electrode handle, wherein the electrode knife head component is detachably connected with the electrode knife head component; the electrode cutter head component comprises an electrode rod and a cutter bar, the cutter bar is sleeved on the electrode rod, and one end of the cutter bar is provided with a cutter bar seat; the electrode handle comprises a first handle and a second handle, the first handle is buckled with the second handle, the second handle slides relatively in the first handle, one end of the first handle, which is far away from the second handle, is detachably connected with the cutter bar seat, and one end of the electrode rod, which is close to the cutter bar seat, penetrates through the first handle and is connected with the second handle. The utility model provides a bipolar radio frequency operation tool bit is convenient for change electrode tool bit subassembly, realizes electrode handle's used repeatedly, has practiced thrift bipolar radio frequency tool bit's material.

Description

Bipolar radio frequency surgical knife head

Technical Field

The utility model relates to the technical field of medical equipment, especially relate to a bipolar radio frequency surgical knife head.

Background

As is well known, the known surgical operations, including the spine minimally invasive surgery, the intervertebral foramen mirror technology, the endoscopic surgery and the laparoscopic surgery, provide the patients with the advantages of reducing trauma wounds, alleviating pain, reducing scars, reducing hospitalization rate, restoring normal functions early and the like, since 2000, the bipolar radio frequency surgical knife head has been widely applied to the spine minimally invasive surgery and other plastic surgeries, acts on soft tissues and plays roles of stopping bleeding, shrinking and burning.

At present, the bipolar radio frequency tool bit that uses on the market is disposable tool bit, uses once back handle and tool bit all to scrap the processing, uses to produce very big waste to the material, and in addition, the insulating isolation is the plastic material between the bipolar electrode of current bipolar radio frequency tool bit head, because the high frequency current of switch-on between the bipolar electrode, can make the insulating layer coke at the operation in-process to shorten the life of operation tool bit. Furthermore, when the existing bipolar radio-frequency cutter head is used together with an endoscope, the position of the operating cutter bar penetrating into the mirror cannot be accurately known.

There is an urgent need for a bipolar RF cutter with simple structure, easy operation, visual depth of cutter head into inner diameter, replaceable cutter bar, and stable and reliable insulation and isolation between electrodes.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem of main solution provides a bipolar radio frequency surgical knife head, solves among the prior art bipolar radio frequency knife head structure complicacy and can not used repeatedly's problem.

In order to solve the technical problem, the utility model discloses a technical scheme be: providing a bipolar radio frequency surgical tool bit, wherein the bipolar radio frequency surgical tool bit comprises an electrode tool bit component and an electrode handle, and the electrode tool bit component is detachably connected with the electrode tool bit component; the electrode cutter head component comprises an electrode rod and a cutter bar, and the cutter bar is sleeved on the electrode rod; the electrode handle comprises a first handle and a second handle, the first handle is buckled with the second handle, the second handle slides relatively in the first handle, one end of the first handle, which is far away from the second handle, is detachably connected with the cutter bar, and the electrode bar penetrates through the cutter bar and the first handle to be connected with the second handle.

The electrode rod comprises an electrode tool bit, the electrode tool bit is fixed on an insulating fixing piece, and a first insulating pipe is sleeved at one end, far away from the electrode tool bit, of the insulating fixing piece; one end of the electrode cutter head, which is close to the first insulating tube, is connected with a conductive wire, a second insulating tube is sleeved on the conductive wire, the second insulating tube is arranged in an inner cavity of the first insulating tube, the first insulating tube penetrates through the inner cavity of the cutter bar and extends to the other end, and the first insulating tube is in sliding connection with the cutter bar; one end of the first insulating pipe, which is far away from the electrode tool bit, is provided with a metal piece, the two sides of the metal piece are provided with insulating spacers, a positioning piece is arranged on the first insulating pipe, and the positioning piece is used for fixing one end of the electrode rod on the second handle.

The electrode tool bit comprises a first working electrode and a second working electrode, the first working electrode and the second working electrode are respectively arranged in a first mounting hole and a second mounting hole which are formed in the insulating fixing piece and far away from one end of the first insulating tube, one ends of the first working electrode and the second working electrode close to the first insulating tube are respectively connected with a conductive wire, the metal piece comprises a first metal piece and a second metal piece, the first metal piece and the second metal piece are connected through an insulating partition piece, and the first working electrode is electrically connected with the first metal piece through the conductive wire; the second working electrode is electrically connected with the second metal piece through the conductive wire.

The first handle comprises a first connecting part and a first holding part which are vertically arranged, the first connecting part is arranged at one end of the first holding part and is of a tubular structure, a clamping part is arranged at one end of the first connecting part, a screw groove is arranged at the other end of the first connecting part, an accommodating cavity is arranged in the first connecting part, a buffer part parallel to the first connecting part is arranged in the accommodating cavity, and one end of the buffer part is abutted to the end part of the second handle; the other end is abutted against the inner wall of the accommodating cavity.

The second handle comprises a second connecting part and a second holding part which are perpendicular to each other, the second holding part and the first holding part are arranged in parallel, the second connecting part is a pipe body, the second connecting part is overlapped with the central axis of the first connecting part, one end of the second connecting part is provided with a clamping head matched with the clamping piece, and the outer diameter of the end, provided with the clamping head, of the second connecting part is not larger than the inner diameter of the first connecting part; the inner wall of the tube body of the second connecting portion is provided with a clamping piece, and the clamping piece is perpendicular to the central axis of the tube body of the second connecting portion.

The clamping piece comprises a fixed cylinder, a clamping pin is arranged in the fixed cylinder, one end of the clamping pin is arranged in an inner cavity of the fixed cylinder and is fixedly connected with the inner bottom of the fixed cylinder through a telescopic piece, and the clamping pin is arranged in a sliding mode relative to the fixed cylinder; the buckle pin is arranged at one end of the fixed cylinder and is provided with a groove.

Wherein, the cutter bar is provided with scales.

Wherein, the material of insulating mounting is ceramic.

Wherein, be equipped with the cutter arbor seat on the cutter arbor, be equipped with anti-skidding line cutter arbor seat and first handle spiro union on the cutter arbor seat, be equipped with anti-skidding line on the cutter arbor seat.

Wherein, the material of first insulating tube is the insulating tube body that has the toughness.

The utility model has the advantages that: the bipolar radio-frequency surgical knife head comprises an electrode knife head component and an electrode handle which are detachably connected, wherein the electrode knife head component comprises an electrode rod and a knife bar, the knife bar is sleeved on the electrode rod, and one end of the knife bar is provided with a knife bar seat; the electrode handle comprises a first handle and a second handle, the first handle is buckled with the second handle, the second handle slides relatively in the first handle, one end of the first handle, which is far away from the second handle, is detachably connected with the cutter bar seat, and one end of the electrode rod, which is close to the cutter bar seat, penetrates through the first handle and is connected with the second handle. Through the electrode tool bit assembly and the electrode handle which are detachably connected, the electrode tool bit assembly is convenient to replace, the electrode handle is reused, the material of the bipolar radio frequency tool bit is saved, the structure is simple, and the operation is convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the bipolar RF surgical tool bit of the present invention;

FIG. 2 is a schematic view of the internal structure of the bipolar RF surgical tool of the present invention;

FIG. 3 is a schematic view of the electrode-tip assembly of the bipolar RF surgical tip of the present invention;

FIG. 4 is a schematic view of the electrode handle of the bipolar RF surgical tool of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 6 is an enlarged schematic view of FIG. 2 at I;

FIG. 7 is an enlarged view of FIG. 3 at II;

fig. 8 is an enlarged schematic view of fig. 5 at iii.

Reference numerals of the above figures: a bipolar radio frequency surgical blade 100; an electrode-bit assembly 1; the electrode comprises an electrode rod 10, an electrode tool bit 11, a first working electrode 12, a second working motor 13, an insulating fixing piece 14, a first insulating tube 15, a conductive wire 16, a second insulating tube 17, a metal piece 18, a first metal piece 19, a second metal piece 20, an insulating isolating piece 21, a positioning piece 22, a first mounting hole 23, a second mounting hole 24, a cutter bar 25 and a cutter bar seat 26; an electrode handle 3; the first handle 31, the first grip part 32, the first connecting part 33, the clamping piece 34, the screw groove 35, the accommodating cavity 36 and the buffer piece 37; the second handle 38, the second grip part 39, the second connecting part 40, the chuck 41, the clamping piece 42, the fixed cylinder 43, the snap pin 44, the telescopic piece 45, the groove 46, the spring push piece 47 and the reinforcing pin 48.

Detailed Description

The following describes in detail a solution according to an embodiment of the present invention with reference to the accompanying drawings.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, interfaces, techniques, etc. in order to provide a thorough understanding of the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 8, fig. 1 is a schematic structural view of an embodiment of an electrode-cutter head assembly according to the present invention; FIG. 2 is a schematic view of the internal structure of the bipolar RF surgical tool of the present invention;

FIG. 3 is a schematic view of the electrode-tip assembly of the bipolar RF surgical tip of the present invention; FIG. 4 is a schematic view of the electrode handle of the bipolar RF surgical tool of the present invention; FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 1; FIG. 6 is an enlarged schematic view of FIG. 2 at I; FIG. 7 is an enlarged view of FIG. 3 at II; fig. 8 is an enlarged schematic view of fig. 5 at iii.

The present embodiment provides a bipolar rf surgical tool bit 100, the bipolar rf surgical tool bit 100 includes an electrode tool bit assembly 1 and an electrode handle 3, the electrode tool bit assembly 1 is detachably connected to the electrode tool bit assembly 1; the electrode cutter head component 1 comprises an electrode rod 10 and a cutter bar 25, and the cutter bar 25 is sleeved on the electrode rod 10; the electrode handle 3 comprises a first handle 31 and a second handle 38, the first handle 31 is buckled with the second handle 38, the second handle 38 slides relatively in the first handle 31, one end of the first handle 31 far away from the second handle 38 is detachably connected with the cutter bar 25, and the electrode rod 10 passes through the cutter bar 25 and the first handle 31 to be connected with the second handle 38.

In an alternative embodiment, the electrode shaft 10 includes an electrode tip 11, the electrode tip 11 is fixed on an insulating fixing member 14, and an end of the insulating fixing member 14 away from the electrode tip 11 is sleeved with a first insulating tube 15. In one embodiment, the material of the insulating fixing member 14 may be a ceramic material, or may be other high temperature resistant materials. One end of the electrode cutter head 11 close to the first insulating tube 15 is connected with a conductive wire 16, a second insulating tube 17 is sleeved on the conductive wire 16, the second insulating tube 17 is arranged in the inner cavity of the first insulating tube 15, and in an optional embodiment, the materials of the first insulating tube 15 and the second insulating tube 17 may be the same. In an embodiment, the first insulating tube 15 is made of a flexible material, and the first insulating tube 15 can form a curved surface structure when extending out of the tool bar 25. The first insulating tube 15 and the second insulating tube 17 may be at least one of plastic, resin, rubber, and the like. The first insulating tube 15 penetrates through the inner cavity of the cutter bar 25 and extends to the other end, and the first insulating tube 15 is connected with the cutter bar 25 in a sliding mode; a metal piece 18 is arranged at one end of the first insulating tube 15 far away from the electrode cutter head 11, insulating spacers 21 are arranged at two sides of the metal piece 18, a positioning piece 22 is arranged on the first insulating tube 15, and the positioning piece 22 is used for fixing one end of the electrode rod 10 on the second handle 38. Wherein, at least one side of the positioning member 22 is provided with a positioning slot

In an alternative embodiment, in order to cooperate with an endoscope, the electrode head 11 includes a first working electrode 12 and a second working electrode 13, the first working electrode 12 and the second working electrode 13 are respectively disposed in a first mounting hole 23 and a second mounting hole 24 disposed at an end of the insulating fixing member 14 away from the first insulating tube 15, ends of the first working electrode 12 and the second working electrode 13 close to the first insulating tube 15 are respectively connected with the conductive wire 16, the metal member 18 includes a first metal member 19 and a second metal member 20, the first metal member 19 and the second metal member 20 are connected through an insulating partition 21, and the first working electrode 12 is electrically connected with the first metal member 19 through the conductive wire 16; the second working electrode 13 is electrically connected to the second metal member 20 through the conductive wire 16.

In an alternative embodiment, the first handle 31 includes a first connecting portion 33 and a first holding portion 32, which are vertically arranged, the first connecting portion 33 is arranged at one end of the first holding portion 32, the first connecting portion 33 is of a tubular structure, one end of the first connecting portion 33 is provided with a clamping piece 34, the other end of the first connecting portion 33 is provided with a screw groove 35, an accommodating cavity 36 is arranged in the first connecting portion 33, a buffer piece 37 parallel to the first connecting portion 33 is arranged in the accommodating cavity 36, and one end of the buffer piece 37 abuts against the end of the second handle 38 through a spring pushing piece 47; the other end is abutted against the inner wall of the accommodating cavity 36. The first holding part 32 is provided with a hand-lying groove at the side far away from the second holding part 39 for convenient operation. The clamping piece 34 is of an annular structure, and a sliding rail is arranged on the inner wall of the clamping piece 34 and used for preventing the second handle 38 from rotating relative to the first handle 31.

In order to facilitate the electrode rod 10 to extend and retract in the cutter bar 25, the second handle 38 comprises a second connecting part 40 and a second holding part 39 which are perpendicular to each other, the second holding part 39 is arranged in parallel with the first holding part 32, the second connecting part 40 is a tube body, the second connecting part 40 is overlapped with the central axis of the first connecting part 33, one end of the second connecting part 40 is provided with a clamping head 41 matched with the clamping piece 34, and the outer diameter of the end of the second connecting part 40 provided with the clamping head 41 is not larger than the inner diameter of the first connecting part 33; the inner wall of the tube body of the second connecting portion 40 is provided with a clamping piece 42, and the clamping piece 42 is perpendicular to the central axis of the tube body of the second connecting portion 40. The outer diameter of the end of the second connecting portion 40 close to the first handle 31 is smaller than the outer diameter of the end of the second connecting portion 40 far from the first handle 31. In an alternative embodiment, the outer side of the end of the chuck 41 is provided with an inclined surface, so that the diameter of the outward side of the chuck 41 is equal to the diameter of the second connecting portion 40, and the diameter of the side of the chuck 41 away from the end of the second connecting portion 40 is larger than the diameter of the second connecting portion 40, thereby facilitating the assembly of the second handle 38 with the first handle 31 and preventing the second handle 38 from being detached from the first handle 31. In an alternative embodiment, the outer wall of the second connecting portion 40 near the end of the chuck 41 is provided with a guide bar, and the guide bar is matched with a slide rail on the first handle 31 for use.

In order to conveniently detach and fix the electrode rod 10, the clamping member 42 comprises a fixed cylinder 43, a clamping pin 44 is arranged in the fixed cylinder 43, one end of the clamping pin 44 is arranged in an inner cavity of the fixed cylinder 43 and is fixedly connected with the inner bottom of the fixed cylinder 43 through a telescopic piece 45, and the clamping pin 44 is arranged in a sliding manner relative to the fixed cylinder 43; the snap pin 44 is provided with a groove 46 at one end of the fixed cylinder 43. The snap 42 is fixed to the inner wall of the first connecting portion 33 by a reinforcing pin 48. In one embodiment, both the telescoping member 45 and the cushioning member 37 are springs.

In order to facilitate the observation of the depth of the bipolar RF operation into the endoscope, the tool bar 25 is provided with graduations.

In order to avoid that the insulating fixing members 14 between the electrode tips 11 are charred by the high-frequency current during operation, the material of the insulating fixing members 14 is ceramic.

In order to conveniently mount and dismount the electrode tool bit assembly 1, the tool bar 25 is provided with a tool bar seat 26, the tool bar seat 26 is provided with an anti-skid thread tool bar seat 26 which is in threaded connection with the first handle 31, and the tool bar seat 26 is provided with anti-skid threads.

In order to realize the end bending operation of the electrode bit assembly 1, the material of the first insulating tube 15 is an insulating tube body having flexibility.

When the bipolar radio frequency surgical knife head 100 in the embodiment is used, the snap pins 44 are firstly pressed inwards to enable the snap pins 44 to drive the telescopic pieces 45 to move backwards, the telescopic pieces 45 are compressed, the grooves 46 on the snap pins 44 are positioned on the central axes of the first connecting portion 33 and the second connecting portion 40, a section of the electrode knife head assembly 1 far away from the electrode knife head 11 penetrates through the first connecting portion 33 and the second connecting portion 40 and simultaneously penetrates through the grooves 46, when the positioning piece 22 reaches the grooves 46, the press of the snap pins 44 is stopped, the telescopic pieces 45 are enabled to return to the original state, and the grooves 46 are clamped with the positioning piece 22. The first handle 31 is fixedly connected to the electrode-cutter head assembly 1 by screwing the cutter bar holder 26 into the screw groove 35 of the first connecting portion 33. The electrode bit 11 of the electrode bit assembly 1 extends into the channel of the inner cavity mirror, and stops extending when the electrode bit reaches a proper depth. The electrode handle 3 is held by one hand, the first holding part 32 is held by fingers, the second holding part 39 is held by a palm, the fingers are pressed backwards forcefully, so that the first handle 31 approaches the second handle 38, the guide strip slides leftwards in the sliding rail, the distance between the clamping part 41 and the clamping part 34 is increased, the clamping part 34 on the first handle 31 slides rightwards in the clamping part 41 in the second handle 38, the end part of the second handle 38 close to the first handle 31 pushes the spring push piece 47 to slide leftwards in the accommodating cavity 36, the buffer part 37 is compressed, so that the end part, provided with the electrode cutter head 11, of the electrode rod 10 of the electrode cutter head assembly 1 fixedly connected to the second handle 38 extends out of the cutter bar 25, and due to the toughness of the first insulating pipe 15, the extending part of the electrode rod 10 is bent into an arc-shaped. After the operation is finished, the first handle 31 is released, the first handle 31 is far away from the second handle 38, the buffer member 37 is restored to the initial state, the spring push plate 47 slides rightwards in the accommodating cavity 36, the clamping member 34 is contacted with the leftmost end of the clamping head 41, the end part of the electrode rod 10 close to the electrode cutter head 11 is retracted into the cutter rod 25, the cutter rod seat 26 is rotated to separate the electrode cutter head component 1 from the motor handle, the bayonet pin 44 is pressed to enable the central axis of the groove 46 to be overlapped with the central axis of the second connecting part 40, and the electrode cutter head component 1 is pulled out.

The utility model has the advantages that: the bipolar radio-frequency surgical knife head comprises an electrode knife head component and an electrode handle which are detachably connected, wherein the electrode knife head component comprises an electrode rod and a knife bar, the knife bar is sleeved on the electrode rod, and one end of the knife bar is provided with a knife bar seat; the electrode handle comprises a first handle and a second handle, the first handle is buckled with the second handle, the second handle slides relatively in the first handle, one end of the first handle, which is far away from the second handle, is detachably connected with the cutter bar seat, and one end of the electrode rod, which is close to the cutter bar seat, penetrates through the first handle and is connected with the second handle. The electrode tool bit assembly and the electrode handle are detachably connected, so that the electrode tool bit assembly is convenient to replace, the electrode handle is repeatedly used, and the material of the bipolar radio frequency tool bit is saved; simple structure and convenient operation.

The above is only the embodiment of the present invention, not the limitation of the patent protection scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A bipolar radio-frequency surgical cutter head is characterized in that the bipolar radio-frequency surgical cutter head (100) comprises an electrode cutter head component (1) and an electrode handle (3), wherein the electrode cutter head component (1) is detachably connected with the electrode cutter head component (1); the electrode cutter head component (1) comprises an electrode rod (10) and a cutter bar (25), wherein the cutter bar (25) is sleeved on the electrode rod (10); the electrode handle (3) comprises a first handle (31) and a second handle (38), the first handle (31) is buckled with the second handle (38), the second handle (38) slides relatively in the first handle (31), one end, far away from the second handle (38), of the first handle (31) is detachably connected with the cutter bar (25), and the electrode rod (10) penetrates through the cutter bar (25) and the first handle (31) to be connected with the second handle (38).

2. The bipolar radio frequency surgical blade of claim 1, wherein the electrode shaft (10) comprises an electrode blade (11), the electrode blade (11) is fixed on an insulating fixing member (14), and a first insulating tube (15) is sleeved on one end of the insulating fixing member (14) far away from the electrode blade (11); one end, close to the first insulating tube (15), of the electrode tool bit (11) is connected with a conductive wire (16), a second insulating tube (17) is sleeved on the conductive wire (16), the second insulating tube (17) is arranged in an inner cavity of the first insulating tube (15), the first insulating tube (15) penetrates through an inner cavity of the cutter bar (25) and extends to the other end, and the first insulating tube (15) is in sliding connection with the cutter bar (25); keep away from first insulating tube (15) the one end of electrode tool bit (11) is equipped with metalwork (18), the both sides of metalwork (18) are equipped with insulating barrier member (21), be equipped with setting element (22) on first insulating tube (15), setting element (22) are used for with the one end of electrode pole (10) is fixed on second handle (38).

3. The bipolar radio frequency surgical blade of claim 2, wherein the electrode blade (11) comprises a first working electrode (12) and a second working electrode (13), the first working electrode (12) and the second working electrode (13) are respectively arranged in a first mounting hole (23) and a second mounting hole (24) which are arranged at one end of the insulating fixing piece (14) far away from the first insulating tube (15), one ends of the first working electrode (12) and the second working electrode (13) close to the first insulating tube (15) are respectively connected with the conductive wire (16), the metal piece (18) comprises a first metal piece (19) and a second metal piece (20), the first metal piece (19) and the second metal piece (20) are connected by an insulating spacer (21), the first working electrode (12) is electrically connected with the first metal piece (19) through a conductive wire (16); the second working electrode (13) is electrically connected with the second metal piece (20) through a conductive wire (16).

4. The bipolar radio-frequency surgical cutter head according to claim 1, wherein the first handle (31) comprises a first connecting part (33) and a first holding part (32) which are vertically arranged, the first connecting part (33) is arranged at one end of the first holding part (32), the first connecting part (33) is of a tubular structure, one end of the first connecting part (33) is provided with a clamping piece (34), the other end of the first connecting part is provided with a screw groove (35), the first connecting part (33) is provided with a containing cavity (36), a buffer piece (37) parallel to the first connecting part (33) is arranged in the containing cavity (36), and one end of the buffer piece (37) is abutted against the end of the second handle (38); the other end is abutted against the inner wall of the accommodating cavity (36).

5. The bipolar radio frequency surgical blade according to claim 4, wherein the second handle (38) comprises a second connecting portion (40) and a second holding portion (39) which are perpendicular to each other, the second holding portion (39) is arranged in parallel with the first holding portion (32), the second connecting portion (40) is a tube, the second connecting portion (40) is coincident with the central axis of the first connecting portion (33), one end of the second connecting portion (40) is provided with a chuck (41) which is matched with the chuck (34), and the outer diameter of the end of the second connecting portion (40) provided with the chuck (41) is not larger than the inner diameter of the first connecting portion (33); be equipped with joint spare (42) on the body inner wall of second connecting portion (40), joint spare (42) perpendicular to the axis of the body of second connecting portion (40).

6. The bipolar radio frequency surgical knife head according to claim 5, wherein the clamping member (42) comprises a fixed cylinder (43), a clamping pin (44) is arranged in the fixed cylinder (43), one end of the clamping pin (44) is arranged in an inner cavity of the fixed cylinder (43) and is fixedly connected with the inner bottom of the fixed cylinder (43) through a telescopic member (45), and the clamping pin (44) is arranged in a sliding manner relative to the fixed cylinder (43); the buckle pin (44) is arranged at one end of the fixed cylinder (43) and is provided with a groove (46).

7. The bipolar rf surgical cutter according to claim 1, wherein the cutter bar (25) is provided with a scale.

8. The bipolar radio frequency surgical blade of claim 2, wherein the insulating fixture (14) is made of ceramic.

9. The bipolar rf surgical knife head according to claim 1, wherein the knife bar (25) is provided with a knife bar seat (26), the knife bar seat (26) is screwed with the first handle (31), and the knife bar seat (26) is provided with anti-skid threads.

10. The bipolar rf surgical blade according to claim 2, wherein the first insulating tube (15) is made of a flexible insulating tube.