High-frequency closed cutting operation electrode capable of being bent for use

Abstract

The invention discloses a bendable high-frequency closed cutting operation electrode which comprises an operation handle and an electrode stem movably mounted on the operation handle, and further comprises an electrode tip, a quick release assembly, a bending assembly and an electrode tip control part, the bending assembly is arranged on the electrode stem, and the electrode tip control part is arranged on the electrode stem. The bending angle of the electrode tip relative to the electrode stem is controllably adjusted through the bending assembly, the quick release assembly is connected with the electrode tip and the electrode stem, the electrode tip and the electrode stem are quickly disassembled and assembled under the action of the quick release assembly, and the electrode tip control part is arranged in the operating handle. The operation handle is held, and the angle of the electrode tip can be adjusted and tissue can be closed and cut by the electrode tip through a single hand of the electrode tip control part. The electrode has the advantages that electrode tips of different specifications can be quickly disassembled and assembled through the standardized quick disassembly assembly on the electrode stem, the electrode tips of different specifications can be replaced according to needs, universality is high, the use cost is reduced, controllable bending of the electrode stem is achieved through the bending assembly, the degree of freedom of the electrode tips is improved, and the electrode stem can be conveniently disassembled and assembled. The degree of freedom of the electrode tip is further enhanced through the electrode rod angle adjusting assembly and the electrode tip angle adjusting assembly, the electrode tip can be conveniently used in complex and narrow positions, assemblies for controlling adjustment of the degree of freedom of the electrode tip are all integrated on the operating handle, operation can be conducted with one hand in the using process, and using is convenient.

Description

Technical Field

[0001] The invention particularly relates to a high-frequency closed cutting surgical electrode which can be used in a flexible manner. Background Art

[0002] Vascular closure technology is mainly used in general surgery (gastrointestinal, cholecystectomy, hemorrhoidectomy), gynecology (such as hysterectomy, adnexectomy), urology (nephrotic, cystectomy), etc. in hospitals, with an annual number of related surgeries of approximately 3 million.

[0003] Surgical vascular closure surgery is generally divided into two surgical methods. One is to close the blood vessels mechanically, such as ordinary surgical sutures, anastomosis devices and vascular clamps; the other is to achieve vascular closure through high-frequency energy, such as bipolar high-frequency electric knife, vascular closure system, ultrasonic knife and laser. The vascular closure system mainly uses real-time feedback technology and host intelligent control technology. The bipolar high-frequency current acts on the surgical site with the help of the closed cutting surgical electrode tip, combined with the pressure between the blades, to dissolve and denature the vascular collagen and fibrin, and the vascular wall fuses into a transparent band, thereby producing a permanent closure effect. It has the characteristics of small tissue damage, high closure and hemostasis efficiency, reduced postoperative bleeding complications and fast recovery.

[0004] At present, imported and domestic brands have successively entered the field of vascular closure devices, but high-frequency energy vascular closure has the following problems: (1) Most of the vascular closure and cutting surgical instruments on the market are designed with straight rods and hard materials. When used in narrow surgical sites during laparoscopic surgery, the doctor needs to manually adjust the angle or direction of use or use other consumables (such as grasping forceps) to clamp the target tissue to complete the operation, which increases the operation time and reduces the efficiency of the operation. (2) General vascular closure and cutting surgical instruments cannot complete the treatment of bleeding tissue fluids. The negative pressure suction device in the operating room is required to complete tissue surface cleaning, thereby exposing the target surgical site, which is inconvenient to use; (3) The specifications of the electrode heads of existing vascular closure surgical instruments are relatively simple. If delicate operations and large-area cutting are required during the operation, two sets of instruments with different functions must be equipped, which greatly increases the cost of use.

[0005] Therefore, how to develop a high-frequency closed cutting surgical electrode with a suction function that is bendable and suitable for delicate operations and large-area cutting, and solve the above-mentioned problems of existing vascular closed cutting electrodes, is the technical point to be solved by the present invention. Summary of the invention

[0006] The technical problem to be solved by the present invention is that the existing high-frequency closed cutting surgical electrodes mentioned in the background technology have single functions, poor versatility and are inconvenient to use.

[0007] In view of the above technical problems, a high-frequency closed cutting surgical electrode that can be bent and used is proposed; it is achieved by the following technical scheme: a high-frequency closed cutting surgical electrode that can be bent and used, including an operating handle and an electrode rod, the electrode rod is movably installed on the operating handle, and is characterized in that it also includes an electrode head, a quick-release assembly, a bending assembly and an electrode head control unit, the bending assembly is arranged on the electrode rod, and the bending angle of the electrode head relative to the electrode rod can be controllably adjusted by the bending assembly, the quick-release assembly connects the electrode head and the electrode rod, the electrode head is quickly disassembled and assembled with the electrode rod under the action of the quick-release assembly, the electrode head control unit is arranged in the operating handle, and the electrode head angle can be adjusted and the electrode head can close and cut the tissue with one hand by holding the operating handle through the electrode head control unit.

[0008] In a preferred embodiment of the technical solution of the present invention, the electrode head includes a fixed clamp and a movable clamp, the fixed clamp and the movable clamp are hinged together, and a movable slide groove is arranged on the movable clamp, and a pull rod is arranged in the movable slide groove. Pulling the pull rod can drive the movable clamp to move under the action of the movable slide groove, thereby realizing the control of the opening and closing of the electrode head. The setting of the movable slide groove facilitates the control of the opening and closing of the electrode head through the movable slide groove, and is easy to use.

[0009] In a preferred embodiment of the technical solution of the present invention, a cutter mounting groove is provided on the fixed clamp and the movable clamp, and the cutter used for cutting is installed in the cutter mounting groove on the fixed clamp. The cutter can be moved in a controllable manner in the cutter mounting groove under the action of the cutting pull rope to complete the cutting. The setting of the cutter facilitates cutting of closed tissue by the cutter, and is easy to use.

[0010] Preferably, the quick-release assembly includes a connecting platform, a cutter pull rod and a closing rod, the connecting platform is arranged in the electrode head, the cutter pull rod is movably inserted in the closing rod, the closing rod and the connecting platform are detachably matched, the cutter pull rod and the cutter are detachably connected, the closing rod is pulled to control the opening and closing of the electrode head, and the cutter pull rod is pulled to control the movement of the cutter in the installation groove. The setting of the quick-release assembly realizes the rapid disassembly and assembly of the electrode head. At the same time, the standardized disassembly and assembly structure also facilitates the replacement of different electrode heads according to needs, avoiding the need to equip multiple sets of instruments and equipment of different specifications during the same operation, ensuring the effect while also reducing the cost of use.

[0011] Preferably, a power supply spring is provided at the connection between the connecting platform and the closing rod. After the closing rod is connected to the connecting platform, the contact on the closing rod contacts the power supply spring to supply power to the electrode head. The setting of the power supply spring facilitates power supply to the electrode head and ensures stable use of the electrode head.

[0012] Preferably, the electrode head control part comprises a closing control component, a cutting control component and a bending control component. The closing control component and the cutting control component are arranged at the front end of the operating handle. The switch of the electrode head and the movement and cutting of the cutter are controlled by controlling the trigger and the closing control component and the cutting control component. The bending control component is arranged in the middle of the operating handle. The adjusting wheel in the bending control component is rotated to drive the bending component on the electrode rod to be controlled to bend. The arrangement of the electrode head control part facilitates the control of the electrode head and the electrode rod to realize different actions through the electrode head control part, thereby improving the overall freedom of the device, facilitating use in complex and narrow locations, being easy to use, and improving the use effect.

[0013] Preferably, the bending assembly includes a bending skeleton, which includes a plurality of bending rings hinged to each other, and the plurality of bending rings are connected by bending ropes. Pulling the bending ropes can drive the bending rings to rotate along the hinges to achieve controllable bending of the bending skeleton. The arrangement of the bending assembly facilitates adjustment of the angle of the electrode head as needed, and is convenient for use in complex and narrow locations. The use effect is improved.

[0014] Preferably, an electrode rod angle adjustment assembly is provided on the operating handle, and the electrode rod angle adjustment assembly is connected to the electrode rod. The electrode rod can rotate controllably under the action of the electrode rod angle adjustment assembly. The setting of the electrode rod angle adjustment assembly facilitates the adjustment of the angle of the electrode rod as needed, and is suitable for tissue closure and cutting at different positions, and is easy to use.

[0015] Preferably, an electrode head angle adjustment assembly is provided on the operating handle, and the electrode head angle adjustment assembly connects the quick-release assembly and the electrode rod. The electrode head connected to the quick-release assembly can be controlled to rotate under the action of the electrode head angle adjustment assembly. The setting of the electrode head angle adjustment assembly enables the electrode head to rotate within a range of 360°, further improving the degree of freedom of the electrode head, which is suitable for tissue closure and cutting at different positions and is easy to use.

[0016] Preferably, a suction module for sucking liquid and smoke is detachably provided on the electrode rod, and the suction module comprises a suction module mounting bar and a suction tube, and the suction tube is movably mounted on the suction module mounting bar. The setting of the suction module facilitates the suction of liquid from bleeding tissue, and facilitates surgery. At the same time, the suction module installed on the electrode rod can also adjust its posture along with the electrode rod, which is convenient for the operator to use.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The technical solution of the present invention utilizes a standardized quick-release assembly arranged on the electrode rod to realize the rapid disassembly and assembly of electrode heads of different specifications. During use, electrode heads of different specifications can be replaced as needed. It has strong versatility and also avoids the use of multiple sets of equipment, reducing the use cost. The bending assembly arranged on the electrode rod is used to realize the controllable bending of the electrode rod, thereby improving the degree of freedom of the electrode head, making it convenient to use in complex and narrow locations, and convenient to use. The electrode rod angle adjustment assembly and the electrode head angle adjustment assembly are used to further enhance the degree of freedom of the electrode head, making it convenient to use in complex and narrow locations. At the same time, the components for controlling the adjustment of the degree of freedom of the electrode head are integrated on the operating handle, which can be operated with one hand during use, and is convenient to use. In addition, a detachable suction module is used to complete the suction of bleeding tissue fluid, which is convenient for surgery. The suction module installed on the electrode rod can also adjust the posture with the electrode rod, which is convenient for the operator to use and improve the suction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a three-dimensional schematic diagram of the electrode head; Figure 3 This is the exploded view of the electrode head; Figure 4 It is a partial cross-sectional view of a quick-release assembly; Figure 5 for Figure 4 Middle partial enlarged picture; Figure 6 This is an exploded view of the quick-release assembly; Figure 7 is a three-dimensional schematic diagram of a bending component; Figure 8 This is a three-dimensional schematic diagram of the electrode rod angle adjustment assembly; Fig. 9 Exploded view of the assembly for electrode tip angle adjustment; Fig.10 A three-dimensional diagram of the electrode head control unit Figure 1 ; Fig.11 A three-dimensional diagram of the electrode head control unit Figure 2 ; Fig.12 It is a three-dimensional schematic diagram of the attraction module; Fig.13 This is a three-dimensional schematic diagram after the attraction module is installed; Fig.14 A three-dimensional diagram of the angle after adjustment during use of the present invention Figure 1 ; Fig.15 A three-dimensional diagram of the angle after adjustment during use of the present invention Figure 2 ; Fig.16A three-dimensional diagram of the angle after adjustment during use of the present invention Figure 3 ; Fig.17 It is an exploded view of the present invention; Description of reference numerals: 1-operating handle, 11-housing, 12-operating hole, 2-electrode rod, 21-sheath tube, 22-connecting seat, 23-sealing ring, 3-electrode head, 31-fixed clamp, 32-movable clamp, 33-electrode sheet, 34-cutter installation groove, 35-handover table, 36-cutter, 37-movable slide groove, 38-first tension spring, 39-cutting pull rope, 4-quick release assembly, 41-connecting table, 42-cutter pull rope Rod, 43-closing pull rod, 44-connecting hole, 45-first guide hole, 46-first limiting groove, 47-power supply spring, 48-first limiting block, 49-second limiting block, 410-second guide hole, 411-second limiting groove, 412-cutter guide rod, 5-bending assembly, 51-bending skeleton, 52-bending ring, 53-hinge sheet, 54-bending pull rope, 6-electrode rod angle adjustment assembly, 61-first adjustment worm Wheel, 62-first adjusting worm, 63-first adjusting wheel, 7-electrode head angle adjustment assembly, 71-control motor, 72-motor mounting ring, 73-connecting ring, 74-pull rod guide slide, 75-motor fixing platform, 76-rotation switch, 8-electrode head control part, 81-closing control assembly, 82-closing control trigger, 83-closing pull rope, 84-closing power switch, 85-pull rope connecting platform, 86-second tension spring, 87-cutting control assembly, 88-cutting control trigger, 89-cutting control pull rope, 810-third tension spring, 811-bending control assembly, 812-second adjusting worm wheel, 813-second adjusting worm, 814-winding wheel, 815-second adjusting wheel, 816-pull rope steering assembly, 817-pulley, 9-attraction module, 91-attraction module mounting strip, 92-mounting slide, 93-attraction tube, 94-function strip. DETAILED DESCRIPTION

[0019] The following will be combined with the attached embodiment of the present invention Figure 1-17 , the technical solutions in the embodiments of the present invention are described in detail. Example

[0020] like Figure 1 , 14 As shown in , 15 and 16, a high-frequency closed cutting surgical electrode that can be bent for use comprises an operating handle 1, an electrode rod 2, an electrode head 3, a quick-release assembly 4, a bending assembly 5 and an electrode head control unit 8, wherein the electrode rod 2 is arranged in the operating handle 1, the electrode head 3 is connected to the electrode rod 2 via the quick-release assembly 4, the bending assembly 5 is arranged on the electrode rod 2, and the electrode head control unit 8 is arranged in the operating handle 1, and the angle of the electrode head 3 and the opening and closing of the electrode head 3 can be adjusted through the electrode head control unit 8.

[0021] The main function of the operating handle 1 is to install the electrode rod 2 and its accessories. At the same time, the setting of the operating handle 1 is also convenient for the user to hold.

[0022] The main function of the electrode head 3 is to clamp the tissue to be closed and to seal the tissue to be closed by utilizing the thermal effect. Meanwhile, a cutter 36 is also arranged in the electrode head 3, and the cutter 36 can be used to complete the cutting of the tissue blocked after closure.

[0023] The function of the quick-release assembly 4 is to set up a standardized quick connector to facilitate the rapid replacement of the electrode head 3, and to facilitate the use of electrode heads 3 of different specifications in complex and narrow locations, avoiding the use of multiple sets of closed cutting equipment during surgery, ensuring the use effect while also reducing patient costs and reducing waste of resources.

[0024] The main function of the bending component 5 is to control the angle of the electrode head 3 through the bending component 5, so as to facilitate the operation in complex and narrow positions, improve the degree of freedom of the electrode head 3, and facilitate use.

[0025] The main function of the electrode head control part 8 is to control the opening and closing, cutting of the electrode head 3 and the bending angle of the bending component 5 through the electrode head control part 8, and the electrode head control part 8 is integrated as a whole on the operating handle 1, and the operator can operate it with one hand, which improves the convenience of use.

[0026] like Figure 1 and 17 As shown, the operating handle 1 is a hollow shell made of plastic. The operating handle 1 consists of two left and right shells 11. The two shells 11 are connected together by screws. The connected shells 11 form the operating handle 1. There is a cavity inside the operating handle 1 for installing accessories and the electrode rod 2.

[0027] In order to facilitate the control of the bending and rotation of the electrode rod 2, two rectangular through holes are opened on the shell 11, which are named operation holes 12. The adjustment wheel for adjusting the bending and rotation of the electrode rod 2 passes through the operation holes 12 and is exposed to the outside. Turning the adjustment wheel can realize the control of the bending and rotation of the electrode rod 2.

[0028] In order to facilitate one-handed operation, the two operating holes 12 are distributed adjacent to each other and are located near the thumb grip of the operating handle 1, so that when the operator holds the operating handle 1, he can lift his thumb to touch the adjustment wheel exposed outside for easy adjustment.

[0029] The electrode rod 2 is a metal tube made of 304 stainless steel that meets medical standards. One end of the electrode rod 2 is inserted into the operating handle 1, and the other end is connected to the bending component 5 by a pin.

[0030] like Figure 1 ,2 As shown in FIG. 3 , the electrode head 3 includes a fixed clamp 31 and a movable clamp 32 , wherein the fixed clamp 31 and the movable clamp 32 are movably hinged, and the movable clamp 32 can be controllably rotated relative to the fixed clamp 31 along the hinge.

[0031] The fixed clamp 31 and the movable clamp 32 are rectangular metal sheets. In order to facilitate the articulation of the two, a "U"-shaped hinge platform 35 is protruded from the rear end of the movable clamp 32 perpendicular to the movable clamp 32. At the same time, a "U"-shaped hinge seat is also protruded from the rear end of the fixed clamp 31. The hinge seat can cooperate with the hinge platform 35 using pins to hinge the fixed clamp 31 and the movable clamp 32 together. In order to facilitate the automatic opening of the movable clamp 32, a torsion spring (not shown in the figure) is also sleeved on the hinge rod of the fixed clamp 31 and the movable clamp 32. Under the action of the torsion spring, the movable clamp 32 rotates along the hinge so that the electrode head 3 is always in an open state.

[0032] In order to facilitate the control of the closing of the electrode head 3, an inclined oblong hole is opened on the two vertical side walls of the hinged platform 35, and this hole is named as a movable slide groove 37. The connecting platform 41 in the quick-release assembly 4 cooperates with the movable slide groove 37 through a pull rod. The pull rod is inserted into the movable slide groove 37 and can move along the movable slide groove 37. When the connecting platform 41 is pulled, the movable clamp 32 can rotate along the hinge under the action of the pull rod to achieve the closure of the electrode head 3.

[0033] In order to facilitate the closure of tissue, an electrode sheet 33 is embedded on the contact surface of the fixed clamp 31 and the movable clamp 32 respectively. The electrode sheet 33 is connected to the power supply line. When necessary, the electrode sheet 33 is energized to generate high-frequency energy to close the tissue.

[0034] In order to achieve tissue cutting, a cutter mounting groove 34 is concavely arranged on the contact surface of the fixed clamp 31 and the movable clamp 32, and a cutter 36 is placed in the cutter mounting groove 34. In addition, a pulley is fixed to the front end of the cutter mounting groove 34 on the fixed clamp 31 by a pin, and a cutting rope 39 passes through the pulley and is connected to the cutter 36. Pulling the cutting rope 39 can drive the cutter 36 to move forward along the cutter mounting groove 34 to achieve tissue cutting.

[0035] In order to facilitate the resetting of the cutter 36, a tension spring is connected to the cutter 36, and this tension spring is named the first tension spring 38. When the cutter 36 is moved and cut by the cutting rope 39, the first tension spring 38 is stretched by the force. When the force applied to the cutting rope 39 is released, the cutter 36 is reset under the action of the first tension spring 38.

[0036] In order to facilitate the connection between the electrode head 3 and the quick-release assembly 4, a rectangular hollow cover is provided on the outer cover of the rear end of the electrode head 3. The hollow cover is fixedly connected to the hinge seat on the fixing clamp 31, and the connecting platform 41 in the quick-release assembly 4 is movably inserted in the hollow cover.

[0037] Definition: In this embodiment, the electrode rod 2 is taken as a reference, the end of the electrode rod 2 where the electrode head 3 is provided is the front end, and the end where the operating handle 1 is provided is the rear end.

[0038] like Figure 1 , 3 As shown in , 4, 5 and 6, the block disassembly component 4 includes a connecting platform 41, a cutter pull rod 42 and a closing pull rod 43, wherein the connecting platform 41 is arranged on the electrode head 3 and connected to the movable clamp 32 on the electrode head 3, the cutter pull rod 42 is movably inserted in the closing pull rod 43, the closing pull rod 43 and the cutter pull rod 42 are detachably connected to the connecting platform 41, pulling the closing pull rod 43 can drive the electrode head 3 to close, and pulling the cutter pull rod 42 can drive the cutter 36 to move, thereby realizing tissue cutting.

[0039] The connecting platform 41 is a stainless steel metal platform with a rectangular cross-section. A rectangular connecting plate is protruding from one end of the connecting platform 41 and is perpendicular to the connecting platform 41. A connecting rod is inserted into the end of the connecting plate. The two ends of the connecting rod are respectively inserted into the movable slide groove 37 on the transfer platform 35. By pulling the connecting platform 41, the connecting platform 41 can move in the hollow cover at the rear end of the fixed clamp 31, thereby driving the movable clamp 32 to rotate along the hinge to realize the closing control of the electrode head 3.

[0040] In order to facilitate the cooperation between the closing rod 43 and the connecting platform 41, at the other end of the connecting platform 41, there are several circular recessed holes perpendicular to the connecting platform 41, which are named connecting holes 44. The closing rod 43 is inserted into the connecting holes 44 to cooperate with the connecting platform 41.

[0041] In order to facilitate the cooperation between the closing rod 43 and the connecting platform 41, four semi-annular grooves are concave at intervals perpendicular to the arc surface of the connecting hole 44 on the inner arc surface of the connecting hole 44 near the bottom surface of the connecting hole 44, and these grooves are named first limit grooves 46. At the same time, four rectangular limit blocks are also protruding on the arc surface of the end of the closing rod 43, and these limit blocks are named second limit blocks 49. The closing rod 43 is inserted into the connecting hole 44, and the closing rod 43 is rotated. The second limit block 49 can be stuck in the first limit groove 46 to realize the connection between the closing rod 43 and the connecting platform 41.

[0042] In order to facilitate the insertion of the closing rod 43 into the connecting platform 41, four rectangular guide holes are provided on the inner arc surface of the connecting hole 44 corresponding to the inner concave surface. These guide holes are named as first guide holes 45. The second limit block 49 on the closing rod 43 can be inserted into the connecting hole 44 along the first guide hole 45 and cooperate with the first limit groove 46. Pulling the closing rod 43 can drive the connecting platform 41 to move as a whole, thereby realizing the control of the opening and closing of the electrode head 3.

[0043] The cutter pull rod 42 is a long rod with a plum blossom-shaped cross section. A plum blossom-shaped through hole is correspondingly opened in the middle of the closing pull rod 43. The cutter pull rod 42 can be in the through hole of the closing pull rod 43, and the closing pull rod 43 can move on the cutter pull rod 42.

[0044] In order to facilitate the control of the movement of the cutter 36, a rectangular through hole is provided on the bottom surface of the connecting platform 41, and a rectangular rod is inserted into the through hole. This rectangular rod is named as the cutter guide rod 412. The cutter guide rod 412 passes through the connecting platform 41, and the front end of the cutter guide rod 412 is fixedly connected to the cutting rope 39. Pulling the cutter guide rod 412 can drive the cutter 36 to move.

[0045] In order to facilitate the connection between the cutter guide rod 412 and the cutter pull rod 42, a rectangular protrusion is fixed on the end face of the rear end of the cutter guide rod 412, and this protrusion is named the first limit block 48. At the same time, a circular socket is also provided at the front end of the cutter pull rod 42, and four second guide holes 410 for guiding are correspondingly provided on the arc surface of the socket, and four semi-annular second limit grooves 411 are correspondingly provided at the bottom of the socket. The end of the cutter guide rod 412 is inserted into the socket, and the cutter guide rod 412 is rotated. The first limit block 48 at the end of the cutter guide rod 412 can cooperate with the second limit groove 411 in the cutter pull rod 42, and pulling the cutter pull rod 42 can drive the cutter 36 to move alone.

[0046] In general, the movement of the cutter 36 is controlled by pulling the cutter rod 42, and the closing of the electrode head 3 is moved by pulling the closing rod 43. The closing rod 43 and the cutter rod 42 move independently of each other without interfering with each other when pulled, but when disassembling the electrode head 3, the closing rod 43 and the cutter rod 42 rotate synchronously, which is convenient for disassembly and assembly.

[0047] When the cutter guide rod 412 is inserted into the cutter pull rod 42, in order to prevent the cutter pull rod 42 from moving relative to the closing pull rod 43, a magnet is provided at the contact point between the two, so that when the electrode head 3 is installed, the cutter pull rod 42 will not move to ensure a quick and stable connection of the electrode head 3.

[0048] In order to supply power to the electrode sheet 33 on the electrode head 3, a "V"-shaped copper spring is fixed on the bottom surface of the connecting hole 44 by screws. This spring is named the power supply spring 47. At the same time, a power supply contact is protruding from the front end of the closing rod 43. The power supply contact is connected to the wire passing through the closing rod 43. The electrode head 3 can be powered by the power supply spring 47 and the power supply contact, which is easy to use.

[0049] Regarding the disassembly and assembly of the electrode head 3, when the electrode head 3 needs to be installed, first insert the closing pull rod 43 into the connecting hole 44. After insertion, the cutter guide rod 412 is also inserted into the cutter pull rod 42, and then rotate the electrode head 3 counterclockwise. At this time, the closing pull rod 43 cooperates with the first limiting groove 45 in the connecting hole 44, and the cutter guide rod 412 cooperates with the second limiting groove 411 in the cutter pull rod 42 to complete the installation of the electrode head 3. When the electrode head 3 needs to be removed, rotate the electrode head 3 clockwise to release the cooperation.

[0050] like Figure 1 , 6 As shown in 9, the electrode head angle adjustment assembly 7 includes a control motor 71, a motor mounting ring 72 and a connecting ring 73, wherein the control motor 71 is installed in the motor mounting ring 72 by screws, the motor mounting ring 72 is connected to the bending assembly 5 at the front end of the electrode rod 2 by screws, and the connecting ring 73 is sleeved on the outside of the closing pull rod 43 and connected to the control motor 71.

[0051] The motor mounting ring 72 is a circular tube with one end open. The motor mounting ring 72 is connected to the bending component 5 at the front end of the electrode rod 2 by screws, and the outer diameter of the motor mounting ring 72 is the same as the outer diameter of the electrode rod 2. The control motor 71 is fixed in the motor mounting ring 72 by screws.

[0052] The connecting ring 73 is a circular rod, and the outer diameter of the connecting ring 73 is the same as the outer diameter of the electrode rod 2. In order to facilitate the connection with the closing pull rod 43, at the front end of the connecting ring 73, there is a circular socket perpendicular to the end surface and recessed, and the inner diameter of the socket is the same as the outer diameter of the closing pull rod 43. The closing pull rod 43 is movably inserted in this socket, and in order to prevent radial displacement between the two, four guide blocks are protruding outward on the arc surface of the closing pull rod 43, and at the same time, a pull rod guide groove 74 is recessed on the inner wall of the socket. The pull rod guide groove 74 can cooperate with the guide block, so that the closing pull rod 43 can move along the axis in the connecting ring 73.

[0053] In order to facilitate the rotation of the electrode head 3 by the control motor 71, a circular boss is protruded at the other end of the connecting ring 73, and this boss is named the motor fixing platform 75. The main shaft on the control motor 71 is inserted into the motor fixing platform 75 and fixed by screws. In this way, when the control motor 71 rotates, it can drive the connecting ring 73 to rotate, and then drive the entire electrode head 2 to rotate. In order to prevent the power supply line from being entangled due to the rotation of the electrode head 2, the control motor 71 can limit the clockwise rotation to 180°, and the counterclockwise rotation angle is limited to 180°.

[0054] Regarding the control of the switch of the control motor 71, it can be controlled by a rotary switch 76 installed on the operating handle 1. This control technology is a prior art and will not be described in detail here.

[0055] In order to prevent leakage between the motor mounting ring 72 and the connecting ring 73, the control motor 71 and its connection are waterproofed, and a connecting seat 22 is installed between the motor mounting ring 72 and the connecting ring 73. The connecting seat 22 is a circular metal ring. The outer diameter of the connecting seat 22 is the same as the outer diameter of the electrode rod 2. The connecting seat 22 is fixed to the connecting ring 73 by screws. A groove is concave at the end of the connecting seat 22, and a sealing ring 23 is placed in the groove. The motor mounting ring 72 contacts the sealing ring 23, and a part of the sealing ring 23 is embedded in the motor mounting ring 72. Waterproofing can be achieved through the sealing ring 23.

[0056] like Figure 1 , 7 As shown in Figures 14, 15 and 16, the bending assembly 5 includes a bending skeleton 51, wherein the bending skeleton 51 is composed of a plurality of bending rings 52 hinged to each other, and the plurality of bending rings 52 are connected by a bending pull rope 54. Pulling the bending pull rope 54 can drive the bending ring 52 to rotate along the hinge to adjust the bending angle.

[0057] The bending skeleton 51 is formed by connecting a plurality of coaxial bending rings 52 in sequence up and down. The bending ring 52 is a circular ring with a certain height. The outer diameter of the bending ring 52 is slightly smaller than the outer diameter of the electrode rod 2 .

[0058] Two hinge pieces 53 are convexly provided on the circular upper and lower end surfaces of the bending ring 52. The two bending rings 52 are connected together by the hinge pieces 53. A plurality of bending rings 52 connected together can be rotated along the hinges to achieve bidirectional bending, thereby achieving bidirectional bending of the end of the electrode rod 2.

[0059] In order to control the bending of the bending skeleton 51, threading holes are provided on the upper and lower end faces of each bending ring 52, and a bending pull rope 54 is inserted into the threading hole. Pulling the bending pull rope 54 can drive multiple bending rings 52 to rotate along the hinge and move closer to each other, thereby realizing the bending of the bending skeleton 51 controlled by the bending pull rope 54.

[0060] Two threading holes are provided on the upper end surface and the lower end surface of the bending ring 52. The two threading holes on the upper end surface and the lower end surface are distributed opposite to each other, and the upper end surface and the lower end surface correspond to each other in the vertical direction.

[0061] In order to control the bidirectional bending of the bending skeleton 51, the threading holes on one side of the multiple bending rings 52 are connected by a bending pull rope 54, and the threading holes on the other side opposite to them are connected by another bending pull rope 54. By adjusting the tightness of the two bending pull ropes 54, the bidirectional bending of the bending skeleton 51 can be controlled.

[0062] like Figure 1 , 8As shown in FIGS. 11 and 17 , in order to improve the degree of freedom of the electrode head 3 , an electrode rod angle adjustment assembly 6 is also provided on the operating handle 1 .

[0063] The electrode rod angle adjustment assembly 6 includes a first adjusting worm gear 61, a first adjusting worm 62 and a first adjusting wheel 63, wherein the first adjusting worm gear 61 is fixed to the electrode rod 2 by means of screws, the first adjusting worm 62 is mounted on the housing 11 of the operating handle 1 by means of pins through a mounting seat, the first adjusting wheel 63 is coaxially connected to the first adjusting worm 62, and the first adjusting wheel 63 can pass through the operating hole 12 to be exposed to the outside of the housing 11, and turning the first adjusting wheel 63 can drive the first adjusting worm 62 to rotate, thereby realizing the control of the rotation of the first adjusting worm gear 61, and further driving the rotation of the electrode rod 2.

[0064] In order to facilitate the rotation of the electrode rod 2 in the operating handle 1, a bearing is disposed on the outer sleeve of the electrode rod 2. The bearing is embedded and fixed in the operating handle 1, and the electrode rod 2 can rotate freely along the bearing.

[0065] In order to prevent the bending component 5 from interfering with tissues when bending, a flexible sheath tube 21 is covered on the outside of the bending component 5. The sheath tube 21 protects the bending component 5 and also ensures normal bending of the bending component 5.

[0066] like Fig.10 , 11 As shown in Figures 14, 15, 16 and 17, the electrode head control unit 8 includes a closing control component 81, a cutting control component 87, a bending control component 811 and a pull-rope steering component 816, wherein the closing control component 81 and the cutting control component 87 are arranged on the operating handle 1, and the distance between the two is close to facilitate operation, the bending control component 811 is arranged in the operating handle 1, close to the electrode rod angle adjustment component 6, and is convenient for one-handed operation to control the bidirectional bending of the bending component 5, and the pull-rope steering component 816 is arranged in the operating handle 1.

[0067] The main function of the closing control component 81 is to control the closing of the electrode head 3. The function of the cutting control component 87 is to control the movement of the cutting knife 36 in the electrode head 3 to achieve tissue cutting. The function of the bending control component 811 is to control the bending of the bending component 5, which improves the degree of freedom of the electrode head 3 and facilitates the use of the device in complex and narrow locations. The main function of the pull rope steering component 816 is to steer the pull rope to facilitate the connection of each pull rope with the corresponding control component. The pull rope steering component 816 includes a mounting rod, which is fixed in the operating handle 1 through a "U"-shaped connecting seat. A pulley 817 is mounted on the mounting rod. After the pull rope passes around the pulley 817, it is connected to each corresponding control component.

[0068] The closing control assembly 81 includes a closing control trigger 82, a closing pull rope 83 and a pull rope connecting platform 85. The closing control trigger 82 is a ring-shaped plastic strip that is convenient for holding. The closing control trigger 82 is installed in the housing 11 of the operating handle 1 through a pin. On the end face of the closing control trigger 82 set in the operating handle 1, there is a rectangular boss protruding perpendicular to the end face. This boss is named the pull rope connecting platform 85. After the closing pull rope 83 is connected to the pull rope connecting platform 85, it bypasses the pulley 817 on the pull rope steering assembly 816, passes through the electrode rod 2, the bending assembly 5 and the closing rod 43 on the quick release assembly 4. Pulling the closing control trigger 82 can drive the closing rod 43 to move through the closing pull rope 83, and then drive the movable clamp 32 to rotate along the hinge to achieve the control of the closing of the electrode head 3.

[0069] When the electrode head 3 is closed, in order to facilitate the power supply to the electrode sheet 33 in the electrode head 3 and realize the closure of the tissue, a closing power supply switch 84 is installed at the lower end of the operating handle 1. The closing power supply switch 84 is a pressure touch switch. When the electrode head 3 is closed, the end of the closing control trigger 82 will touch the closing power supply switch 84 to realize the power supply to the electrode sheet 33.

[0070] In order to facilitate the resetting of the closing control trigger 82, a second tension spring 86 is installed in the operating handle 1. One end of the second tension spring 86 is connected to the closing control trigger 82, and the other end is fixed to the operating handle 1. When the closing control trigger 82 is pulled, the second tension spring 86 is stretched by force.

[0071] The cutting control assembly 87 includes a cutting control trigger 88 and a cutting control pull rope 89. The cutting control trigger 88 is a rectangular plastic strip. The cutting control trigger 88 is installed in the housing 11 of the operating handle 1 through pins. On the end face of the cutting control trigger 88 set in the operating handle 1, there is a rectangular pull rope connecting platform protruding perpendicular to the end face. After the cutting control pull rope 89 is connected to the pull rope connecting platform, it bypasses the pulley 817 on the pull rope steering assembly 816, passes through the electrode rod 2, the bending assembly 5 and the cutter pull rod 42 on the quick release assembly 4. Pulling the cutting control trigger 88 can drive the cutter pull rod 42 to move through the cutting control pull rope 89, and then drive the cutter 36 to move along the cutter mounting groove 34 to achieve tissue cutting.

[0072] Regarding the positional relationship and size difference between the cutting control trigger 88 and the closing control trigger 82, a certain distance is left between the cutting control trigger 88 and the closing control trigger 82, but to facilitate single-handed control of the two triggers, in addition, in order to avoid misoperation, the size of the cutting control trigger 88 is smaller than that of the closing control trigger 82.

[0073] In order to facilitate the resetting of the cutting control trigger 88, a third tension spring 810 is installed in the operating handle 1. One end of the third tension spring 810 is connected to the cutting control trigger 88, and the other end is fixed on the operating handle 1. When the cutting control trigger 88 is pulled, the third tension spring 810 is stretched by force.

[0074] The bending control assembly 811 includes a second adjusting worm gear 812, a second adjusting worm 813, a winding wheel 814 and a second adjusting wheel 815, wherein the second adjusting worm gear 812 is fixed on the winding wheel 814, and the main function of the winding wheel 814 is to be used for winding the bending pull rope 54. The bending pull rope 54 is turned by the rope turning assembly 816 and then wound around the two ends of the winding wheel 814.

[0075] The winding wheel 814 is fixed in the operating handle 1 through a "U"-shaped mounting seat, and the winding wheel 814 can rotate freely along the mounting seat. The second adjusting worm wheel 812 is fixed in the operating handle 1 through a "U"-shaped mounting seat and meshes with the second adjusting worm wheel 812. The second adjusting wheel 815 is coaxially fixed with the second adjusting worm 813, and the second adjusting wheel 815 passes through the operating hole 12 and is exposed to the outside of the housing 11. Turning the second adjusting wheel 815 can drive the second adjusting worm 813 to rotate, and the bending angle of the bending component 5 can be controlled by adjusting the direction of the second adjusting wheel 815.

[0076] like Fig.12 and 13 As shown, in order to facilitate the suction of bleeding tissue fluid during surgery, a suction module 9 can be optionally installed on the electrode rod 2.

[0077] The suction module 9 includes a suction module mounting strip 91, which is a silicone strip with a rectangular cross-section. The suction module mounting strip 91 is fixed to the outer wall of the electrode rod 2. Rectangular mounting grooves 92 are provided on the two side surfaces of the suction module mounting strip 91 perpendicular to the side surfaces. When suction is not required during the entire surgical process and no suction tube is used, a functional strip 94 made of silicone is installed on the suction module mounting strip 91. A slide bar that cooperates with the installation slide groove 92 is provided on the functional strip 94. The functional strip 94 is installed on the suction module mounting strip 91 through the slide bar to ensure the smoothness of the outside of the electrode rod 2.

[0078] When the suction tube 93 needs to be installed, the function strip 94 can be pulled out and the suction tube 93 can be plugged into the suction module mounting strip 91. The suction tube 93 is preferably made of a flexible silicone tube, so that when bleeding tissue fluid is sucked, the suction tube 93 can bend along with the bending of the electrode rod 2, which facilitates the suction of bleeding tissue fluid and is easy to operate.

[0079] The above embodiments are only for illustrating the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A high-frequency closed cutting surgical electrode that can be bent for use, comprising an operating handle (1) and an electrode rod (2), wherein the electrode rod (2) is movably mounted on the operating handle (1), and characterized in that: The invention also comprises an electrode head (3), a quick-release assembly (4), a bending assembly (5) and an electrode head control unit (8); the bending assembly (5) is arranged on the electrode rod (2); the bending angle of the electrode head (3) relative to the electrode rod (2) is controllably adjustable via the bending assembly (5); the quick-release assembly (4) connects the electrode head (3) and the electrode rod (2); the electrode head (3) is quickly assembled and disassembled from the electrode rod (2) under the action of the quick-release assembly (4); the electrode head control unit (8) is arranged in the operating handle (1); the electrode head control unit (8) can be used to adjust the angle of the electrode head (3) and close and cut tissue with the electrode head (3) by holding the operating handle (1) with one hand through the electrode head control unit (8).

2. The high-frequency closed cutting surgical electrode that can be used in a flexible manner according to claim 1 is characterized in that: The electrode head (3) comprises a fixed clamp (31) and a movable clamp (32), the fixed clamp (31) and the movable clamp (32) being hinged together, and a movable slide groove (37) is provided on the movable clamp (32), and a pull rod is provided in the movable slide groove (37). Pulling the pull rod can drive the movable clamp (32) to move under the action of the movable slide groove (37), thereby realizing the control of opening and closing of the electrode head (3).

3. The high-frequency closed cutting surgical electrode that can be used in a flexible manner according to claim 2 is characterized in that: A cutter installation groove (34) is provided on the fixed jaw (31) and the movable jaw (32). A cutter (36) for cutting is installed in the cutter installation groove (34) on the fixed jaw (31). The cutter (36) is controllably movable in the cutter installation groove (34) under the action of a cutting pull rope (39) to complete cutting.

4. The flexible high-frequency closed cutting surgical electrode according to claim 1, characterized in that: The quick-release assembly (4) comprises a connecting platform (41), a cutter pull rod (42) and a closing pull rod (43); the connecting platform (41) is arranged in the electrode head (3); the cutter pull rod (42) is movably inserted in the closing pull rod (43); the closing pull rod (43) and the connecting platform (41) are detachably matched; the cutter pull rod (42) and the cutter (36) are detachably connected; the closing pull rod (43) is pulled to control the opening and closing of the electrode head (3); and the cutter pull rod (42) is pulled to control the movement of the cutter in the cutter installation groove (34).

5. The high-frequency closed cutting surgical electrode that can be used in a flexible manner according to claim 4 is characterized in that: A power supply spring (47) is provided at the connection point between the connection platform (41) and the closing pull rod (43); after the closing pull rod (43) and the connection platform (41) are connected in a cooperative manner, a contact on the closing pull rod (43) contacts the power supply spring (47) to supply power to the electrode head (3).

6. The flexible high-frequency closed cutting surgical electrode according to claim 1, characterized in that: The electrode head control unit (8) comprises a closing control component (81), a cutting control component (87) and a bending control component (811); the closing control component (81) and the cutting control component (87) are arranged at the front end of the operating handle (1); the switch of the electrode head (3) and the movement and cutting of the cutter (36) are controlled by controlling the trigger and the closing control component (81) and the cutting control component (87); the bending control component (811) is arranged in the middle of the operating handle (1); the adjusting wheel in the bending control component (811) is rotated to drive the bending component (5) on the electrode rod (2) to be controlled to bend.

7. The flexible high-frequency closed cutting surgical electrode according to claim 1, characterized in that: The bending assembly (5) comprises a bending frame (51), wherein the bending frame (51) comprises a plurality of bending rings (52) hinged together, wherein the plurality of bending rings (52) are connected via a bending pull rope (54), and pulling the bending pull rope (54) can drive the bending ring (52) to rotate along the hinge, thereby achieving controllable bending of the bending frame (51).

8. The flexible high-frequency closed cutting surgical electrode according to claim 1, characterized in that: An electrode rod angle adjustment component (6) is provided on the operating handle (1); the electrode rod angle adjustment component (6) is connected to the electrode rod (2); and the electrode rod (2) can be controlled to rotate under the action of the electrode rod angle adjustment component (6).

9. The flexible high-frequency closed cutting surgical electrode according to claim 1, characterized in that: An electrode head angle adjustment component (7) is provided on the operating handle (1); the electrode head angle adjustment component (7) is connected to the quick-release component (4) and the electrode rod (2); and the electrode head (3) connected to the quick-release component (4) is controllably rotatable under the action of the electrode head angle adjustment component (7).

10. The flexible high-frequency closed cutting surgical electrode according to claim 1, characterized in that: A suction module (9) for sucking liquid and smoke is detachably provided on the electrode rod (2); the suction module (9) comprises a suction module mounting strip (91) and a suction tube (93); the suction tube (93) is movably mounted on the suction module mounting strip (91).

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