Electrocoagulation and electroresection suction unit

Abstract

The present application relates to the technical field of medical devices, in particular to a kind of electrocoagulation and electrocision impact suction device;Impact suction subassembly is provided with the impact suction sleeve pipe extending towards the distal end of handle shell, electrode subassembly is provided with the electrode tube coaxial with impact suction sleeve pipe and is sleeved in its inside, and knife head is also fixedly connected on electrode tube extension end;Control subassembly is fixedly connected with impact suction sleeve pipe by hand wheel, and is fixedly connected with electrode tube by guide piece, electrode tube and impact suction sleeve pipe are rotated by rotating hand wheel, impact suction sleeve pipe is wrapped around knife head by stretching hand wheel;Impact suction subassembly and electrode subassembly are sealed and communicated with control flow subassembly by communication subassembly, impact suction subassembly, electrode subassembly and control subassembly are integrated structure and can be detachably installed on handle shell by locking subassembly, and electrode subassembly is electrically connected with power supply subassembly by locking subassembly;The present application can be more accurate and convenient in impact suction flow control, and the front end instrument of impact suction device has better flexibility and safety.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an electrocoagulation and electrocautery aspiration device. Background Technology

[0002] Electrocoagulation and electrocautery aspiration devices are indispensable instruments in minimally invasive surgery. They are widely used in various intracavitary surgeries such as laparoscopy, hysteroscopy, urology, and digestive endoscopy. These devices integrate high-frequency electrocoagulation and electrocautery functions, which can simultaneously cut and stop bleeding of various tissues during the operation, and promptly remove blood, tissue fragments, and irrigation fluid from the surgical area to maintain a clear surgical field, thereby improving surgical safety and efficiency.

[0003] While existing electrocoagulation and electro-resection irrigation and aspiration devices used in clinical practice have integrated electrocoagulation and electro-resection functions, traditional instruments typically use external switches or independent valve knobs for flow regulation. This requires the surgeon or assistant to be distracted during operation, making it difficult to achieve precise and immediate control of the irrigation or aspiration flow while holding the device, thus affecting the continuity and accuracy of the surgical procedure. Furthermore, existing front-end electrodes and surgical instruments are mostly fixed structures, which cannot be flexibly adjusted according to surgical needs and are difficult to adapt to the multi-angle operation requirements in complex surgical fields. At the same time, their electrode ends are mostly fixed and exposed outside the surgical instruments, which makes it easy for the exposed electrode ends or instrument ends to cause accidental damage to surrounding tissues when the instruments are inserted into or withdrawn from the cavity, further limiting the flexible use of the instruments during the surgical process.

[0004] Therefore, there is an urgent need for an electrocoagulation and electrosurgical aspiration device that can control the aspiration flow more precisely and conveniently, while also making the front-end instruments of the aspiration device more flexible and safe, and making the disassembly and maintenance of the electrode assembly more convenient, so as to better meet the needs of refined clinical surgery. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art and provide an electrocoagulation and electrocutting suction device.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: An electrocoagulation and electrosurgery device includes a handle housing, a suction assembly, an electrode assembly, a control assembly, a flow control assembly, a communication assembly, a locking assembly, and a power supply assembly. The flushing and suction assembly is provided with a flushing and suction sleeve extending toward the distal end of the handle housing, and the electrode assembly is provided with an electrode tube coaxial with the flushing and suction sleeve and sleeved inside it, and a blade is fixedly connected to the protruding end of the electrode tube. The control component is fixedly connected to the suction sleeve via a handwheel and to the electrode tube via a guide. The electrode tube and the suction sleeve are rotated by rotating the handwheel, and the suction sleeve is extended and wrapped around the cutter head by pulling the handwheel. The flushing and suction assembly and the electrode assembly are sealed and connected to the flow control assembly through the communication assembly. The flushing and suction assembly, the electrode assembly and the control assembly are an integrated structure and can be detachably installed on the handle housing through the locking assembly. The electrode assembly is electrically connected to the power supply assembly through the locking assembly.

[0007] Preferably, the flow control assembly includes a valve body, a valve core, and a push button. The valve body has a first channel and a second channel extending through it along the main body direction. The bottom of the valve body is provided with a first connecting pipe and a second connecting pipe that communicate with the first channel and the second channel, respectively. The valve body is also provided with an outwardly protruding converging port. The first channel and the second channel are respectively provided with a first through hole and a second through hole that communicate with the converging port. The first connecting pipe is connected to a suction pipe, and the second connecting pipe is connected to a flushing pipe. The valve body is also fixedly connected to the handle housing through a mounting hole.

[0008] Preferably, the valve core is disposed inside the first channel and the second channel respectively, and the valve core is also provided with an irregular flow channel. The two ends of the irregular flow channel correspond to the connecting pipe port and the through hole port on the valve body respectively. Several valve core sealing rings are fixedly connected to the outside of the valve core and abut against the inner wall of the channel of the valve body.

[0009] Preferably, a push-pull movable groove is provided through both side walls of the two channels of the valve body, and a positioning pin is fixedly connected to the valve core and passes through the push-pull movable groove; the push key is fixedly connected to the positioning pin, and the valve core is controlled to move in the corresponding channel of the valve body by pushing the push key, thereby realizing the on / off control of the upper port of the valve core and the corresponding through hole on the valve body.

[0010] Preferably, the connecting component includes a fixedly connected connecting sleeve and a square connecting portion. An installation groove is formed on the end face of the connecting portion opposite to the connecting sleeve. A T-shaped cover plate is fixedly connected to the installation groove. The connecting component is fixedly installed on the converging port of the flow control component through the T-shaped cover plate. A connecting hole is formed through the T-shaped cover plate. The guide is coaxially disposed in the connecting sleeve. The electrode tube passes through and is disposed in the connecting hole. A connecting sealing ring is also provided between the installation groove and the T-shaped cover plate and abuts against the outer wall of the electrode tube.

[0011] Preferably, the locking assembly includes a button, a pressing pad, a movable insert, an elastic buckle, and a spring. A pressing movable groove is axially formed within the communicating portion. The movable insert is disposed within the pressing movable groove. A pad boss is formed at the top of the pressing movable groove, and the pressing pad is fitted onto the pad boss. The button is disposed on the pressing pad and is located at the top of the handle housing, extending outwards. A through hole is formed on the surface of the movable insert, allowing the electrode tube to pass through. A spring boss for mounting the spring is also provided at its bottom. One end of the spring abuts against the bottom of the movable insert, and the other end abuts against the handle housing.

[0012] Preferably, the elastic buckle includes arc-shaped locking sections at both ends and elastic conductive sections. The bottom of the movable insert is also provided with a buckle groove that extends to the end face of the through hole. The arc-shaped locking section is disposed in the buckle groove and extends out. The electrode tube is also provided with a fixing groove at the through hole to cooperate with the arc-shaped locking section. The elastic conductive section extends toward one end of the power assembly. The power assembly includes a control board and a power cord. A conductive spring is fixed on the control board and abuts against the elastic conductive section. A control switch is also provided on the handle housing and connected to the control board.

[0013] Preferably, the handwheel includes an outer shell and an inner shell. The outer shell is fitted over the inner shell and snapped in place. The flushing and suction sleeve is disposed between the outer shell and the inner shell and is fixed to the handwheel by being snapped together. The rotation and extension of the handwheel can drive the flushing and suction sleeve to move synchronously.

[0014] Preferably, the guide includes a guide cap and a guide sleeve that are coaxially arranged and fixedly connected. The electrode tube is coaxially and fixedly arranged inside the guide sleeve. Two guide protrusions are symmetrically arranged on the guide cap, and two guide limiting grooves are symmetrically opened on the side wall of the inner shell. The guide is arranged inside the handwheel, and the guide protrusions are arranged in the guide limiting grooves. Rotation of the handwheel can drive the guide and the electrode tube fixed thereto to rotate together.

[0015] Preferably, the extended end of the handle housing is provided with a movable part, and both ends of the movable part are provided with gear-shaped damping bosses. The inner shell is also symmetrically provided with damping points on the end facing the handle housing, which cooperate with the damping bosses.

[0016] In summary, the beneficial effects of this invention are as follows: 1. The electrocoagulation and electrosurgical aspiration device of the present invention can be rotated or stretched on the movable part of the handle housing by controlling the handwheel. It can simultaneously control the rotation of the electrode tube and the aspiration sleeve, so as to meet the multi-angle operation requirements under complex surgical field. At the same time, by stretching, the aspiration sleeve can be moved forward and wrapped around the blade at the front end of the electrode tube. This not only improves the working efficiency of the aspiration process, but also avoids accidental damage to the surrounding tissue caused by the exposed blade at the front end when inserting or withdrawing from the cavity, thus improving the safety and flexibility of the device. 2. The electrocoagulation and electrosurgical cutting aspiration device of the present invention has an integrated structure in which the aspiration component, electrode component and control component are fixed by mechanical structure, and can be detachably installed on the handle housing by locking component. This not only improves the stability of the overall structure, but also makes it easier for the operator to disassemble and replace the blade during use. At the same time, it can also integrate a variety of aspiration components with different structures on the handle housing, so that the device has better stability and convenience. 3. In the electrocoagulation and electrocutting suction device of the present invention, the electrode assembly is electrically connected to the power supply assembly through the locking assembly. The arc-shaped snap-fit ​​section of the elastic buckle is snapped into the fixing groove at the tail end of the electrode tube, making the fixing of the electrode tube more reliable. At the same time, the conductive elastic buckle abuts against the electrode tube, and the elastic abutment structure of the elastic buckle and the conductive spring sheet ensures the stability of the electrical connection. 4. The electrocoagulation and electro-resection irrigation and aspiration device of the present invention, through the cooperation of irrigation and aspiration sleeve, electrode tube, flow control component and connecting component, wraps the irrigation and aspiration sleeve around the outside of the electrode tube as an auxiliary, the hollow structure inside the electrode tube serves as the irrigation and aspiration channel, and the electrode tube is connected to the valve body of the flow control component through the connecting component, thereby realizing the integration of irrigation and aspiration, suction and electro-resection and electrocoagulation functions of the device, reducing the need for frequent changes of surgical instruments during operation and improving surgical efficiency; 5. The electrocoagulation and electrosurgical cutting flushing and suction device of the present invention has a valve body with a dual-channel structure that connects the flushing pipe and the suction pipe respectively. The position of the valve core in the channel is controlled by a push button, realizing independent flushing and suction as well as flow control. Traditional flushing and suction devices mostly use soft rubber tubes, and the soft rubber tube is deformed by pressing or releasing the button to achieve the opening and closing. This long-term compression of the soft rubber tube can wear down the tube wall and lead to dangerous consequences such as leakage or electric leakage. However, the valve body of the present invention is made of rigid material, and the valve core is controlled by a push button to achieve the opening and closing. There will be no air holes that damage the pipeline, and there will be no situation where the pipeline is compressed by negative pressure during the suction process. This ensures the stability of the flushing and suction process and allows the operator to control the flushing and suction flow more precisely. 6. In the electrocoagulation and electrocutting suction device of the present invention, the guide component cooperates with the guide limiting groove inside the handwheel through the guide protrusion, which ensures the coaxial movement of the control component during rotation and extension. At the same time, the extension process can be restricted by the guide limiting groove and the guide protrusion, avoiding the fall off during the extension process and ensuring the stability of the transmission process. 7. The electrocoagulation and electrocautery suction device of the present invention has gear-shaped damping bosses at both ends of the movable part on the handle housing, which cooperate with the damping points on the inner shell to provide damping feel during operation, making it easier for the operator to accurately control the rotation and extension positions, and improving the comfort and operability of the use process. 8. The electrocoagulation and electrocution aspiration device of the present invention has a connecting sealing ring at the connection between the connecting component and the electrode tube and the valve body, and several valve core sealing rings are also provided on the valve core inside the valve body, so that the sealing at the connecting interface is effectively guaranteed, the overall sealing structure is more complete, and the flushing fluid or aspirated body fluid and other liquids are effectively prevented from seeping into the device, thus ensuring the stability of the operation of the internal electrical components and mechanical structure of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the internal structure of the device according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the overall structure of the flow control component of the present invention; Figure 4 This is a schematic diagram of the valve body structure of the present invention; Figure 5 This is a schematic diagram of the valve body channel closure structure of the present invention; Figure 6 This is a schematic diagram of the opening structure of the first channel of the valve body of the present invention; Figure 7 This is a schematic diagram of the structure of the valve body with the second channel open according to the present invention; Figure 8 This is a schematic diagram of the interconnecting component structure of the present invention; Figure 9 This is a schematic diagram of the locking component structure of the present invention; Figure 10 This is a schematic diagram of the elastic snap-locking structure of the present invention; Figure 11 This is a schematic diagram of the elastic buckle unlocking structure of the present invention; Figure 12 This is a schematic diagram of the detachable integrated component of the present invention; Figure 13 This is a schematic diagram of the internal structure of the handwheel of the present invention; Figure 14This is a schematic diagram of the movable part structure of the handle housing of the present invention; Figure 15 This is a schematic diagram of the damping fit structure of the present invention; Figure 16 This is a schematic diagram of the handwheel reset structure of the present invention; Figure 17 This is a schematic diagram of the handwheel mechanism of the present invention; Figure 18 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 19 This is a schematic diagram of the flow splitting structure in Embodiment 2 of the present invention; Figure 20 This is a schematic diagram of the device structure of the foot control structure in Embodiment 3 of the present invention; Figure 21 This is a schematic diagram of the flushing and suction structure of Embodiment 3 of the present invention.

[0018] Markings in the diagram: 1. Handle housing; 11. Movable part; 12. Damping boss; 13. Control switch; 2. Flushing and suction assembly; 21. Flushing and suction sleeve; 3. Electrode assembly; 31. Electrode tube; 311. Fixing groove; 32. Cutting head; 4. Control assembly; 41. Handwheel; 411. Outer shell; 412. Inner shell; 413. Guide limiting groove; 414. Damping point; 42. Guide component; 421. Guide cap; 422. Guide sleeve; 423. Guide protrusion; 5. Flow control assembly; 51. Valve body; 511. First channel; 512. Second channel; 513. First connecting pipe; 514. Second connecting pipe; 515. Converging port; 516. First through hole; 517. Second through hole; 518. Push-pull movable groove; 519. Mounting hole; 52. Valve 521. Core; 522. Irregular flow channel; 523. Valve core sealing ring; 524. Positioning pin; 53. Push key; 54. Suction pipe; 55. Flushing pipe; 56. Diverter plate; 57. Flushing pipe; 6. Connecting assembly; 61. Connecting sleeve; 62. Connecting part; 621. Mounting groove; 622. Pressing movable groove; 623. Gasket boss; 63. T-shaped cover plate; 631. Connecting hole; 64. Connecting sealing ring; 7. Locking assembly; 71. Button; 72. Pressing gasket; 73. Movable insert; 731. Through hole; 732. Spring boss; 733. Snap-on groove; 74. Elastic snap-on; 741. Arc-shaped snap-on section; 742. Elastic conductive section; 75. Spring; 8. Power supply assembly; 81. Control board; 82. Power cord; 83. Conductive spring. Detailed Implementation

[0019] The following specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Example 1

[0022] according to Figures 1 to 17 As shown, an electrocoagulation and electrosurgery device includes a handle housing 1, a suction assembly 2, an electrode assembly 3, a control assembly 4, a flow control assembly 5, a communication assembly 6, a locking assembly 7, and a power supply assembly 8. The flushing and suction assembly 2 is provided with a flushing and suction sleeve 21 extending toward the far end of the handle housing 1, and the electrode assembly 3 is provided with an electrode tube 31 coaxial with the flushing and suction sleeve 21 and sleeved inside it, and a cutter head 32 is fixedly connected to the protruding end of the electrode tube 31. The control component 4 is fixedly connected to the suction sleeve 21 via the handwheel 41 and to the electrode tube 31 via the guide 42. The electrode tube 31 and the suction sleeve 21 are rotated by rotating the handwheel 41, and the suction sleeve 21 is extended and wrapped around the cutter head 32 by pulling the handwheel 41. The flushing and suction assembly 2 and the electrode assembly 3 are sealed and connected to the flow control assembly 5 through the connecting assembly 6. The flushing and suction assembly 2, the electrode assembly 3 and the control assembly 4 are an integrated structure and can be detachably installed on the handle housing 1 through the locking assembly 7. The electrode assembly 3 is electrically connected to the power supply assembly 8 through the locking assembly 7.

[0023] according to Figure 3 , Figure 4 As shown, the flow control assembly 5 includes a valve body 51, a valve core 52, and a push button 53. The valve body 51 has a first channel 511 and a second channel 512 extending through it along the main body direction. The bottom of the valve body 51 is provided with a first connecting pipe 513 and a second connecting pipe 514, which are respectively connected to the first channel 511 and the second channel 512. The valve body 51 is also provided with an outwardly protruding converging port 515. The first channel 511 and the second channel 512 are respectively provided with a first through hole 516 and a second through hole 517, which are connected to the converging port 515. The first connecting pipe 513 is connected to a suction pipe 54, and the second connecting pipe 514 is connected to a flushing pipe 55. The valve body 51 is also fixedly connected to the handle housing 1 through a mounting hole 519.

[0024] The valve body 51 has a Y-shaped three-way structure. The outwardly protruding converging port 515 converges the two passages, the first channel 511 and the second channel 512, into one outlet. The converging port 515 is finally connected to the hollow structure inside the electrode tube 31 through the connecting component 6, so that one passage of the electrode tube 31 can perform flushing, suction and electrocoagulation functions simultaneously. The bottom of the first channel 511 on the valve body 51 is connected to the first connecting pipe 513. The first connecting pipe 513 is equipped with a suction pipe 54 that is connected to an external negative pressure suction device. The bottom of the second channel 512 is connected to the second connecting pipe 514. The second connecting pipe 514 is equipped with a flushing pipe 55 that is connected to an external flusher.

[0025] according to Figures 5-7 As shown, the valve core 52 is respectively disposed inside the first channel 511 and the second channel 512. The valve core 52 is also provided with an irregular flow channel 521. The two ends of the irregular flow channel 521 correspond to the connecting pipe port and the through hole on the valve body 51, respectively. Several valve core sealing rings 522 are fixedly connected to the outside of the valve core 52 and abut against the inner wall of the channel of the valve body 51. Push-pull movable grooves 518 are provided through the two side walls of the two channels of the valve body 51. The valve core 52 is also fixedly connected with a positioning pin 523 and passes through the push-pull movable groove 518. The push key 53 is fixedly connected to the positioning pin 523. By pushing the push key 53, the valve core 52 is controlled to move in the corresponding channel of the valve body 51, thereby realizing the on / off control of the upper port of the valve core 52 and the corresponding through hole on the valve body 51.

[0026] The valve body 51 is made entirely of rigid plastic. By controlling the opening and closing of the internal channels of the valve body 51 through the valve core 52, which is made of the same material, the defects of using soft rubber tubing can be effectively avoided. This eliminates the leakage caused by squeezing and the collapse and bending caused by negative pressure, thus improving the stability of the device. The first channel 511 and the second channel 512 inside the valve body 51 are both equipped with the same valve core 52. The valve core 52 has a bent irregular flow channel 521. The lower end of the irregular flow channel 521 corresponds to the connecting pipe port at the bottom of the channel, and the upper end corresponds to the through hole in the converging port 515. In the first channel 511, when the push key 53 is pushed to move the valve core 52 upward in the first channel 511, the upper end of the irregular flow channel 521 in the valve core 52 connects with the first through hole in the first channel 511. As the hole 516 gradually connects, when the push button 53 is pushed to its highest position, the upper port of the irregular flow channel 521 is fully connected to the first through hole 516. At this time, the suction flow rate of the device reaches its maximum value, and the suction efficiency is the highest. Conversely, when the push button 53 is pulled back, the upper port of the irregular flow channel 521 in the valve core 52 will gradually disconnect from the first through hole 516. When the push button 53 is pulled to its lowest point, the upper port of the irregular flow channel 521 is completely disconnected from the first through hole 516, and the suction work stops. Similarly, by controlling the internal valve core 52 through the push button 53 of the second channel 512, the start and stop of the flushing work of the device can also be realized. Furthermore, by adjusting the stroke of the push button 53 on the valve body 51, the flow rate of the suction or flushing process can also be adjusted to meet the differentiated needs of flushing and suction pressure in different surgical scenarios.

[0027] according to Figure 8 , Figure 10 As shown, the connecting component 6 includes a fixedly connected connecting sleeve 61 and a square connecting part 62. An installation groove 621 is provided on the end face of the connecting part 62 opposite to the connecting sleeve 61. A T-shaped cover plate 63 is fixedly connected to the installation groove 621. The connecting component 6 is fixedly installed on the converging port 515 of the flow control component 5 through the T-shaped cover plate 63. A connecting hole 631 is provided through the T-shaped cover plate 63. A guide member 42 is coaxially arranged in the connecting sleeve 61. The electrode tube 31 passes through and is arranged in the connecting hole 631. A connecting sealing ring 64 is also provided between the installation groove 621 and the T-shaped cover plate 63 and abuts against the outer wall of the electrode tube 31.

[0028] The connecting component 6 is fixedly installed inside the handle housing 1. The electrode tube 31 and the guide 42 are set inside the connecting sleeve 61. The tail end of the electrode tube 31 passes through the mounting groove 621 in the square connecting part 62 and is finally set in the connecting hole 631 on the T-shaped cover plate 63. The T-shaped cover plate 63 is sealed and fixedly connected to the converging port 515 on the valve body 51. The first through hole 516 and the second through hole 517 on the converging port 515 converge and finally communicate with the hollow structure of the electrode tube 31 on the T-shaped cover plate 63. A connecting sealing ring 64 is provided between the T-shaped cover plate 63 and the connecting part 62 and abuts against the outer wall of the electrode tube 31, so that the electrode tube 31 can always maintain its sealing performance during operation even after disassembly and assembly.

[0029] according to Figures 9-11 As shown, the locking assembly 7 includes a button 71, a pressing pad 72, a movable insert 73, an elastic buckle 74, and a spring 75. A pressing movable groove 622 is axially extending through the connecting portion 62. The movable insert 73 is disposed within the pressing movable groove 622. A pad boss 623 is formed at the top of the pressing movable groove 622, and the pressing pad 72 is fitted onto the pad boss 623. A button 71 is disposed on the pressing pad 72, which is located at the top of the handle housing 1 and extends outwards. A through hole 731 is formed on the surface of the movable insert 73, allowing the electrode tube 31 to pass through. A spring boss 732 for mounting the spring 75 is also provided at its bottom. The spring 75 is connected to the movable insert 75 through one end of the spring boss 732. The bottom of the plate 73 abuts against the handle housing 1; the elastic buckle 74 includes arc-shaped snap-fit ​​sections 741 and elastic conductive sections 742 at both ends. The bottom of the movable insert 73 is also provided with a snap-fit ​​groove 733 and extends to the end face of the through hole 731. The arc-shaped snap-fit ​​section 741 is disposed in the snap-fit ​​groove 733 and extends out. The electrode tube 31 is also provided with a fixing groove 311 at the through hole 731 to cooperate with the arc-shaped snap-fit ​​section 741. The elastic conductive section 742 extends toward the power assembly 8. The power assembly 8 includes a control board 81 and a power cord 82. A conductive spring 83 is fixed on the control board 81 and abuts against the elastic conductive section 742. A control switch 13 is also provided on the handle housing 1 and connected to the control board 81.

[0030] The locking component 7 works by pressing the button 71 on the top of the handle housing 1. The button 71 presses down, squeezing the movable insert 73 below the pressing pad 72 downwards. This downward movement of the movable insert 73 compresses the spring 75 and the elastic latch 74 below it. When the elastic latch 74 moves downwards under pressure, its arc-shaped locking section 741 disengages from the fixing groove 311 at the tail end of the electrode tube 31, thus releasing the lock on the electrode tube 31. At this point, the handwheel 41 of the operating control component 4 can be pulled outwards, allowing the integrated structure of the control component 4, electrode component 3, and suction component 2 to be completely removed from the handle housing 1. When reinstallation is required, the button 71 is pressed again, the integrated structure is inserted, and after it is fully inserted, the button 71 is released. The arc-shaped locking section 741 of the elastic latch 74 re-enters the fixing groove 311 of the electrode tube 31, achieving a lock. Therefore, the working principle of the locking component 7 is as follows: The mechanism is as follows: Pressing button 71 causes the movable insert 73 to move up and down, which in turn moves the elastic buckle 74. The arc-shaped locking section 741 of the elastic buckle 74 enters or disengages from the fixing groove 311 of the electrode tube 31 to lock or open. An elastic conductive section 742 extending towards the control board 81 is also provided on the end of the elastic buckle 74 opposite to the arc-shaped locking section 741. The control board 81 is equipped with a conductive spring 83 that contacts the elastic conductive section 742 to achieve circuit conduction. The current finally enters the electrode tube 31 through the arc-shaped locking section 741 to achieve overall circuit conduction. A control switch 13 is also provided on the handle housing 1 to operate the control board 81. The control switch 13 switches between electric cutting and electric coagulation modes through different pressing contacts. A power cord 82 is also connected to the control board 81 to connect to the external host. The power cord 82 of the hand-controlled device is a three-prong power cord structure, which can realize the switching between single and double poles.

[0031] according to Figures 12-17 As shown, the handwheel 41 includes an outer shell 411 and an inner shell 412. The outer shell 411 is fitted over the inner shell 412 and snapped in place. The suction sleeve 21 is disposed between the outer shell 411 and the inner shell 412 and is fixed to the handwheel 41 after being pressed together by the two. The rotation and extension of the handwheel 41 can drive the suction sleeve 21 to move synchronously. The guide member 42 includes a guide cap 421 and a guide sleeve 422 that are coaxially arranged and fixedly connected. The electrode tube 31 is coaxially arranged and fixedly disposed inside the guide sleeve 422. Two guides are symmetrically arranged on the guide cap 421. The inner shell 412 has two symmetrical guide and limiting grooves 413 on its side wall. The guide member 42 is located inside the handwheel 41, and the guide protrusion 423 is located in the guide and limiting groove 413. The rotation of the handwheel 41 can drive the guide member 42 and the electrode tube 31 fixed thereto to rotate together. The extended end of the handle housing 1 is provided with a movable part 11. Both ends of the movable part 11 are provided with gear-shaped damping bosses 12. The inner shell 412 is also symmetrically provided with damping points 414 on the end facing the handle housing 1 to cooperate with the damping bosses 12.

[0032] The suction sleeve 21 is fixedly mounted on the handwheel 41, and the guide 42 is fixedly sleeved on the electrode tube 31. The electrode tube 31 is locked to the locking assembly 7 by the arc-shaped locking section 741. Since both the fixing groove 311 and the arc-shaped locking section 741 on the electrode tube 31 are arc-shaped structures, the locking assembly 7 does not affect the rotation of the electrode tube 31. When the handwheel 41 is rotated, the side wall of the guide limiting groove 413 on the inner shell 412 presses against the guide protrusion 423, causing the guide 42 and the electrode tube 31 to rotate, thereby realizing the rotation of the front-end cutter head. Angle adjustment of 32; when the handwheel 41 is pulled, the handwheel 41 will drive the fixed flushing and suction sleeve 21 to move forward. Since the position of the electrode tube 31 is fixed, the flushing and suction sleeve 21 will wrap around the front blade 32, so that the front end of the flushing and suction sleeve 21 directly contacts the surgical site, improving the flushing and suction effect and safety of the device; the movable part 11 of the handle housing 1 is also provided with a damping boss 12 that cooperates with the damping point 414 on the handwheel 41, providing mechanical damping during operation, so that the operator can more accurately control the rotation and extension position.

[0033] Example 2

[0034] The difference from Embodiment 1 above is that, according to Figure 18 , Figure 19 As shown, a flow divider 56 is also fixedly installed inside the converging port 515 on the valve body 51 of the flow control assembly 5. The flow divider 56 has a 90-degree bent structure, with one end parallel to the surface of the converging port 515 and abutting against its inner wall, and the other end perpendicular to the surface of the converging port 515 and inserted into the groove on the converging port 515. The flow divider 56 wraps around the second through hole 517 on the converging port 515, isolating it from the first through hole 516. A through hole is opened through the surface of the flow divider 56. A flushing tube 57 with a smaller diameter is also coaxially arranged inside the hollow structure of the electrode tube 31. A mounting plate is also fixedly installed on the side wall of the tail end of the flushing tube 57. The flushing tube 57 is fixedly connected to the electrode tube 31 through the mounting plate. The tail end of the flushing tube 57 passes through the through hole on the surface of the flow divider 56 and is placed in the space wrapped by the flow divider 56 and the second through hole 517.

[0035] In this design, a flow divider 56 and a flushing pipe 57 are installed on the converging port 515 of the valve body 51, allowing the suction and flushing processes of the device to be carried out through two independent pipelines. When the device needs suction, the push button 53 on the first channel 511 is pushed, and the irregular flow channel 521 in the valve core 52 of the first channel 511 connects with the first through hole 516. Since the first through hole 516 is connected to the hollow structure of the electrode tube 31, the electrode tube 31 serves as an independent suction pipeline, thereby realizing the suction function of the device. After suction is completed, the push button 53 on the first channel 511 is reset, the irregular flow channel 521 in the valve core 52 disconnects from the first through hole 516, and the suction function ends. When the device needs to perform... During the cleaning process, push the push button 53 on the second channel 512. The irregular flow channel 521 in the valve core 52 of the second channel 512 connects with the second through hole 517. Since the second through hole 517 is wrapped with a diverter plate 56, the rinsing fluid in the second through hole 517 will be sprayed out through the rinsing tube 57 on the diverter plate 56. After rinsing, reset the push button 53 on the second channel 512. The irregular flow channel 521 in the valve core 52 disconnects from the second through hole 517, and the rinsing function ends. The independent design of the diverter plate 56 and the rinsing tube 57 allows suction and rinsing to be achieved through two independent pipelines, meeting the differentiated needs of specific surgical procedures and improving the flexibility and practicality of the device.

[0036] Example 3

[0037] The difference from Embodiments 1 and 2 above is that, according to Figure 20 , Figure 21 As shown, an electrocoagulation and electrosurgical aspiration device also includes a foot-controlled structure and an aspiration structure. The foot-controlled structure does not have a control switch 13; its control is primarily achieved through a foot switch connected to an external host unit. During surgery, the device's electrocoagulation and electrosurgical operation is controlled by stepping on the foot switch. Its power cord 82 is a single plug, connecting to the host unit to conduct current. The handwheel 41 of the foot-controlled aspiration device can also control the rotation and extension of the aspiration assembly 2 and the electrode assembly 3. By extending the aspiration sleeve 21 to wrap around the blade 32 at the front end of the electrode tube 31, more efficient aspiration is achieved. The aspiration structure... The suction device does not have electrocoagulation or electrocutting functions. It does not have a power supply component 8, nor does it have a retractable suction sleeve 21 or a cutter head 32. The handwheel 41 of the suction structure cannot be rotated or extended, and only serves as an aid in the assembly and disassembly process. The suction structure integrates a flow control component 5 and a connecting component 6. Its electrode tube 31 is not energized and is mainly used for the suction function. The valve body 51 of the flow control component 5 is connected to a suction pipe 54 and a flushing pipe 55. The suction pipe 54 and the flushing pipe 55 are connected to the hollow structure of the electrode tube 31 through the valve body 51 and the connecting component 6 to achieve overall conduction of the suction path.

Claims

1. An electrocoagulation and electrocutting suction device, characterized in that, It includes a handle housing (1), a suction assembly (2), an electrode assembly (3), a control assembly (4), a flow control assembly (5), a communication assembly (6), a locking assembly (7), and a power supply assembly (8). The flushing and suction assembly (2) is provided with a flushing and suction sleeve (21) extending toward the far end of the handle housing (1), and the electrode assembly (3) is provided with an electrode tube (31) coaxial with the flushing and suction sleeve (21) and sleeved inside it, and a blade (32) is fixedly connected to the protruding end of the electrode tube (31). The control component (4) is fixedly connected to the suction sleeve (21) via a handwheel (41) and to the electrode tube (31) via a guide (42). The electrode tube (31) and the suction sleeve (21) are rotated by rotating the handwheel (41), and the suction sleeve (21) is extended and wrapped around the cutter head (32) by stretching the handwheel (41). The flushing and suction assembly (2) and the electrode assembly (3) are sealed and connected to the flow control assembly (5) through the communication assembly (6). The flushing and suction assembly (2), the electrode assembly (3) and the control assembly (4) are an integrated structure and can be detachably installed on the handle housing (1) through the locking assembly (7). The electrode assembly (3) is electrically connected to the power supply assembly (8) through the locking assembly (7). The handwheel (41) includes an outer shell (411) and an inner shell (412). The outer shell (411) is fitted over the inner shell (412) and snapped in place. The flushing and suction sleeve (21) is disposed between the outer shell (411) and the inner shell (412) and is fixed to the handwheel (41) by the snapping and clamping of the two. The rotation and stretching of the handwheel (41) can drive the flushing and suction sleeve (21) to move synchronously. The guide (42) includes a guide cap (421) and a guide sleeve (422) that are coaxially arranged and fixedly connected. The electrode tube (31) is coaxially arranged and fixedly arranged inside the guide sleeve (422). Two guide protrusions (423) are symmetrically arranged on the guide cap (421). Two guide limiting grooves (413) are symmetrically opened on the side wall of the inner shell (412). The guide (42) is arranged inside the handwheel (41). The guide protrusions (423) are arranged in the guide limiting grooves (413). The rotation of the handwheel (41) can drive the guide (42) and the electrode tube (31) fixed thereto to rotate together.

2. The electrocoagulation and electrocutting suction device according to claim 1, characterized in that, The flow control assembly (5) includes a valve body (51), a valve core (52), and a push button (53). The valve body (51) has a first channel (511) and a second channel (512) extending through it along the main body direction. The bottom of the valve body (51) is provided with a first connecting pipe (513) and a second connecting pipe (514) that are respectively connected to the first channel (511) and the second channel (512). The valve body (51) is also provided with an outwardly protruding converging port (515). The first channel (511) and the second channel (512) are respectively provided with a first through hole (516) and a second through hole (517) that are connected to the converging port (515). The first connecting pipe (513) is connected to a suction pipe (54), and the second connecting pipe (514) is connected to a flushing pipe (55). The valve body (51) is also fixedly connected to the handle housing (1) through a mounting hole (519).

3. The electrocoagulation and electrocutting suction device according to claim 2, characterized in that, The valve core (52) is respectively disposed inside the first channel (511) and the second channel (512). The valve core (52) is also provided with a shaped flow channel (521). The two ends of the shaped flow channel (521) correspond to the connecting pipe port and the through hole port on the valve body (51) respectively. A number of valve core sealing rings (522) are fixedly connected to the outside of the valve core (52) and abut against the inner wall of the channel of the valve body (51).

4. The electrocoagulation and electrocutting suction device according to claim 3, characterized in that, Push-pull movable grooves (518) are provided through the two channel side walls of the valve body (51). A positioning pin (523) is fixedly connected to the valve core (52) and passes through the push-pull movable groove (518). The push key (53) is fixedly connected to the positioning pin (523). By pushing the push key (53), the valve core (52) is controlled to move in the corresponding channel of the valve body (51), thereby realizing the on / off control of the upper port of the valve core (52) and the corresponding through hole on the valve body (51).

5. The electrocoagulation and electrocutting suction device according to claim 2, characterized in that, The connecting component (6) includes a fixedly connected connecting sleeve (61) and a square connecting part (62). An installation groove (621) is provided on the end face of the connecting part (62) opposite to the connecting sleeve (61). A T-shaped cover plate (63) is fixedly connected to the installation groove (621). The connecting component (6) is fixedly installed on the converging port (515) of the flow control component (5) through the T-shaped cover plate (63). A connecting hole (631) is provided through the T-shaped cover plate (63). The guide (42) is coaxially arranged in the connecting sleeve (61). The electrode tube (31) passes through and is arranged in the connecting hole (631). A connecting sealing ring (64) is also provided between the installation groove (621) and the T-shaped cover plate (63) and abuts against the outer wall of the electrode tube (31).

6. The electrocoagulation and electrocutting suction device according to claim 5, characterized in that, The locking assembly (7) includes a button (71), a pressing pad (72), a movable insert (73), an elastic buckle (74), and a spring (75). A pressing movable groove (622) is axially extending through the connecting portion (62). The movable insert (73) is disposed within the pressing movable groove (622). A pad boss (623) is formed at the top of the pressing movable groove (622), and the pressing pad (72) is fitted onto the pad boss (623). The button (71) is provided on the plate (72), and the button (71) is located at the top of the handle housing (1) and extends out; the surface of the movable insert (73) is provided with a through hole (731) that allows the electrode tube (31) to pass through, and a spring boss (732) for installing the spring (75) is also provided at its bottom. The spring (75) abuts against the bottom of the movable insert (73) at one end through the spring boss (732), and abuts against the handle housing (1) at the other end.

7. The electrocoagulation and electrocutting suction device according to claim 6, characterized in that, The elastic buckle (74) includes arc-shaped snap-fit ​​sections (741) and elastic conductive sections (742) at both ends. The bottom of the movable insert (73) is also provided with a snap-fit ​​groove (733) and extends to the end face of the through hole (731). The arc-shaped snap-fit ​​section (741) is disposed in the snap-fit ​​groove (733) and extends out. The electrode tube (31) is also provided with a fixing groove (311) at the position of the through hole (731) to cooperate with the arc-shaped snap-fit ​​section (741). The elastic conductive section (742) extends toward one end of the power assembly (8). The power assembly (8) includes a control board (81) and a power cord (82). A conductive spring (83) is fixed on the control board (81) and abuts against the elastic conductive section (742). A control switch (13) is also provided on the handle housing (1) and connected to the control board (81).

8. The electrocoagulation and electrocutting suction device according to claim 1, characterized in that, The handle housing (1) is provided with a movable part (11) at the extended end. Both ends of the movable part (11) are provided with gear-shaped damping bosses (12). The inner shell (412) is also provided with damping points (414) symmetrically arranged on the end facing the handle housing (1) to cooperate with the damping bosses (12).

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