Single-pole and double-pole conversion electrocoagulation forceps hook

Abstract

The invention relates to the technical field of medical instruments, in particular to a single-pole and double-pole conversion electrocoagulation forceps hook. Comprising a handle, a sleeve set, a surgical instrument, an electrode set and a power line set, the sleeve set is installed on the handle through a connecting sleeve, the surgical instrument is arranged at the end, away from the handle, of the sleeve set, the electrode set is arranged in the handle, and the power line set is electrically connected with the electrode set; the sleeve set comprises a telescopic sleeve, a sleeve electrode and a pull rod electrode, the electrode set comprises a first electrode and a second electrode, the first electrode is electrically connected with the sleeve electrode, the second electrode is electrically connected with the pull rod electrode, and the end, in the handle shell, of the telescopic sleeve is further fixedly connected with an elastic piece. The current conduction between the elastic piece and the first electrode and the second electrode is adjusted by adjusting the telescopic sleeve, so that the single-pole and double-pole conversion of the electrocoagulation forceps hook is realized; in the operation process, single-electrode and double-electrode switching can be completed only by adjusting the telescopic sleeve switching control switch, the structure is reasonable, operation is convenient and fast, and the electrocoagulation requirements in different scenes in the operation are met.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a single-polar and bipolar conversion electrocoagulation forceps hook. Background Art

[0002] In surgical operations, electrocoagulation forceps hook is a common medical device, mainly used for coagulation and cutting of tissues. In some complex surgical procedures, doctors often need to use both monopolar coagulation and bipolar coagulation at the same time; monopolar coagulation is through an active electrode and a loop electrode attached to the patient's body surface. The current flows from the active electrode through the patient's tissue and finally reaches the loop electrode to complete the circuit. Monopolar coagulation has a large power and is suitable for large-area tissue cutting and coagulation; bipolar coagulation integrates both electrodes on the jaws of the surgical instrument. The current only flows locally in the tissue between the two electrode tips. The bipolar coagulation mode has the advantages of precise hemostasis, small damage range, good directionality and high precision, and is suitable for hemostasis in delicate anatomical areas.

[0003] In the prior art, monopolar coagulation surgical instruments or bipolar coagulation surgical instruments are usually designed independently. During the operation, the surgeon needs to alternately switch between surgical instruments with different monopolar or bipolar functions. Frequent replacement of surgical instruments will increase the operation time and reduce the operation efficiency. When faced with more complex surgical situations, it is impossible to quickly respond to the need for mode switching, which greatly reduces the flexibility of the operation. Although there are some combination instruments with complex structures, their structures are relatively complex and the operation is not convenient enough. Therefore, there is an urgent need for a monopolar and bipolar conversion coagulation forceps hook to make its structure simpler and more convenient to operate, and to be able to quickly switch between monopolar and bipolar modes. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the background technology and provide a single-polar and bipolar conversion electrocoagulation forceps hook with a reasonable structure and convenient operation, which can meet the electrocoagulation needs in different scenarios during surgery.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A single-polar and bipolar conversion electrocoagulation forceps hook, characterized in that it comprises a handle, a sleeve group, a surgical instrument, an electrode group and a power cord group, wherein the surgical instrument is arranged at the end of the sleeve group away from the handle, the electrode group is arranged inside the handle, and the power cord group is electrically connected to the electrode group; The sleeve group includes a telescopic sleeve, a sleeve electrode and a pull rod electrode. The electrode group includes a first electrode and a second electrode. The first electrode is electrically connected to the sleeve electrode, and the second electrode is electrically connected to the pull rod electrode. The telescopic sleeve is further fixedly connected to an elastic member at one end inside the handle housing. The power cord group includes a power cord, a bipolar plug and a monopolar plug. By adjusting the position of the elastic part, it is connected or disconnected with the first electrode and the second electrode, and the switching of the bipolar plug and the monopolar plug is coordinated to realize the monopolar and bipolar conversion of the electrocoagulation forceps hook.

[0006] Preferably, a first electrode mounting portion and a second electrode mounting portion are provided in the handle shell, the first electrode is fixedly mounted on the first electrode mounting portion, and the second electrode is fixedly mounted on the second electrode mounting portion; a sleeve electrode fixing seat is also fixedly provided on the first electrode mounting portion, the sleeve electrode fixing seat is fixedly connected to the first electrode, and the sleeve electrode is fixedly provided inside the sleeve electrode fixing seat; the first electrode mounting portion is designed as a card slot structure, the first electrode is fixedly mounted inside the card slot of the first electrode mounting portion, and a sleeve electrode fixing seat is also provided in the card slot, the sleeve electrode fixing seat is fixed by the two shells of the handle, the interior of the sleeve electrode fixing seat is a hollow structure, the sleeve electrode is fixedly mounted in the hollow structure inside it, the sleeve electrode fixing seat and the first electrode are tightly fitted on the first electrode mounting portion, and the current of the first electrode can be transmitted to the sleeve electrode through the sleeve electrode fixing seat, and when the telescopic sleeve is adjusted, the two ends of the sleeve electrode fixing seat are just stuck in the card slot of the first electrode mounting portion, so that the sleeve electrode remains fixed during the telescopic sleeve extension process.

[0007] Preferably, the second electrode is provided with a mounting groove, a pull rod hole is provided at one end of the mounting groove for the pull rod electrode to pass through, and an elastic clamping portion is provided at the other end, and the elastic clamping portion is tightly fitted with the pull rod of the pull rod electrode through elastic force to achieve current conduction; the second electrode is fixedly mounted on the second electrode mounting portion through the mounting groove, and is made of elastic conductive material. The elastic clamping portion of the second electrode is clamped and connected with the pull rod electrode through the elastic force of its own elastic material. The current passing through the second electrode can be conducted to the pull rod electrode through the elastic clamping portion, completing the current conduction between the second electrode and the pull rod electrode, and when the pull rod electrode is stretched, the elastic clamping portion of the second electrode can also be tightly fitted and contacted with the pull rod electrode, thereby improving the stability and reliability of the device.

[0008] Preferably, the single-polar and bipolar conversion electrocoagulation forceps hook also includes a connecting sleeve; the sleeve group is installed on the handle through the connecting sleeve, the telescopic sleeve is made of insulating material, a limiting groove is provided on the telescopic sleeve near the elastic member, and a limiting column is provided inside the connecting sleeve to cooperate with the limiting groove; the telescopic sleeve and the sleeve electrode are both hollow structures, the sleeve electrode is provided inside the telescopic sleeve, and the pull rod electrode is provided inside the sleeve electrode, wherein the inner diameter of the sleeve electrode is larger than the outer diameter of the pull rod electrode; when the telescopic sleeve is stretched, the end of the telescopic sleeve will move forward and eventually be sleeved on the tail of the surgical instrument at the front end, and the surgical forceps hook at the front end cannot be opened, so that the surgical forceps hook becomes only electric Hook function, at the same time, the surgical instrument is switched from bipolar to monopolar, and the surgical electric hook can realize functions such as electrocoagulation or electrocuting in the monopolar mode; the telescopic sleeve is made of insulating material, which can prevent medical staff from being injured by electric current when adjusting the telescopic sleeve during use, thereby improving the safety of the device; the limit groove provided on the telescopic sleeve cooperates with the limit column provided inside the connecting sleeve, and the limit column and the limit groove can prevent the telescopic sleeve from rotating during use, thereby ensuring the reliability of the elastic part installed on the telescopic sleeve during use; the telescopic stroke of the telescopic sleeve is determined by the length of the limit groove. When it moves to the two ends of the limit groove, the telescopic sleeve will be unable to continue to move under the action of the limit column, thereby avoiding the situation where the telescopic sleeve directly slides out of the handle.

[0009] Preferably, the elastic member is a conductive material, including a clamping portion, an elastic sheet and a bent portion, the elastic member is clamped and fixed to the telescopic sleeve through the clamping portion, the elastic sheet is fixedly arranged on the clamping portion, the elastic sheet extends toward the second electrode and exceeds the second electrode, and the bent portion is arranged at the end of the elastic sheet and bends toward the second electrode; the clamping portion of the elastic member can be a fixing method such as a snap structure, a clamp structure or a threaded fixing structure, and the elastic member is fixedly installed on the telescopic sleeve through the clamping portion. When the telescopic sleeve is telescopic, it can drive the elastic member above it to move together; the clamping portion is provided with an elastic sheet extending obliquely upward toward the second electrode, and the extended end of the elastic sheet is also provided with a bent portion toward the second electrode. When the telescopic sleeve is in a contracted state, the position of the bent portion exceeds the position of the second electrode. When the telescopic sleeve is stretched, the bent portion will eventually contact the second electrode under the drive of the telescopic sleeve to achieve current conduction.

[0010] Preferably, a fixing column is provided inside the handle shell, and in a natural state, when the telescopic sleeve is contracted, the highest point of the bent portion is higher than the lowest point of the fixing column; when the telescopic sleeve is stretched, the elastic sheet will be elastically deformed under the pressure of the fixing column, so that the bent portion contacts the second electrode; the fixing column is arranged above the second electrode mounting portion, and the elastic sheet of the elastic member is arranged between the second electrode mounting portion and the fixing column. When the telescopic sleeve is contracted, the elastic sheet of the elastic member is in a natural state. When the telescopic sleeve is stretched, the elastic sheet will be elastically deformed downward by the pressure applied by the fixing column during the forward movement. When the telescopic sleeve is stretched to the farthest distance, the bent portion on the elastic sheet will come into contact with the second electrode under the action of the deformation, so that the current is conducted between the second electrode and the elastic member, and the elastic sheet It will contact the first electrode under the action of elastic force, which will connect the originally two independent first and second electrodes and turn them into a monopolar state, realizing the process of switching the electrocoagulation forceps hook from bipolar to monopolar; conversely, after the telescopic sleeve is retracted, the elastic member will be separated from the first and second electrodes, and the monopolar state will be switched to bipolar again; the movement of the elastic member can also be achieved by opening an adjustment hole on the handle shell, installing a movable adjustment member on the adjustment hole and fixedly connecting it with the elastic member, and driving the elastic member to move by adjusting the adjustment member outside the handle, so that the elastic member and the first electrode and the second electrode are connected or disconnected; the principle of realizing single-bipolar switching is that by adjusting the elastic member inside the handle shell, it is connected or disconnected with the two electrodes, and at the same time cooperating with the corresponding control switching of the single-bipolar plug on the power cord, thereby realizing the single-bipolar conversion of the electrocoagulation forceps hook.

[0011] Preferably, the power cord includes a power cord, a bipolar plug, a monopolar plug and a control switch, the control switch is used to control the switching between the bipolar plug and the monopolar plug, the bipolar plug includes a first bipolar plug and a second bipolar plug, the first bipolar plug and the second bipolar plug are respectively connected to the positive and negative poles of the main power supply; the control switch is used to switch the working status of the bipolar plug and the monopolar plug, wherein the first bipolar plug and the second bipolar plug are used to provide positive and negative currents to the coagulation forceps hook in the bipolar state, and the monopolar plug is used to provide current to the monopolar state of the coagulation forceps hook, and cooperate with the electrode plate attached to the human body to realize the circuit under the monopolar body, thereby realizing the monopolar working state of the coagulation forceps hook.

[0012] Preferably, the positive pole of the power cord is electrically connected to the first electrode, and the negative pole of the power cord is electrically connected to the second electrode. When the control switch is switched to the monopolar mode, the power cord will be connected to the monopolar plug, and cooperate with the movement of the elastic part on the telescopic sleeve to enable the electrocoagulation forceps hook to achieve monopolar and bipolar conversion; the control switch can switch the monopolar and bipolar modes. When the mode needs to be switched, first switch the control switch to the off position, and then stretch or contract the telescopic sleeve. After the telescopic sleeve is stretched, it is in monopolar mode, and after the telescopic sleeve is contracted, it is in bipolar mode. Then switch the gear of the control switch to the corresponding gear, so that the electrocoagulation forceps hook can be switched between monopolar and bipolar modes more conveniently.

[0013] Preferably, the surgical instrument includes a first forceps hook, a second forceps hook, a first insulating portion and a second insulating portion, the first forceps hook is hinged to the sleeve electrode, the second forceps hook is hinged to the pull rod electrode, the first insulating portion is arranged between the first forceps hook and the second forceps hook and are hinged to each other, and the second insulating portion is fixedly installed at the end of the protruding end of the sleeve electrode; the first forceps hook is electrically connected to the sleeve electrode, and the second forceps hook is electrically connected to the pull rod electrode. In the bipolar mode, the current emitted by the main power supply will reach the first forceps hook through the first electrode, and finally flow back to the second electrode through the second forceps hook, thereby realizing the conduction of the bipolar circuit. In the monopolar mode, In this mode, the current generated by the total power supply will flow to the first clamp hook and the second clamp hook through the first electrode and the second electrode, and finally flow back through the electrode plate attached to the human body to complete the unipolar circuit conduction; by pulling the pull rod electrode, the opening and closing movement of the first clamp hook and the second clamp hook can be controlled, so that the electrocoagulation clamp hook can realize the electrocoagulation function during the operation. A first insulating part is provided between the first clamp hook and the second clamp hook to separate the two, which can avoid a short circuit between the two clamp hooks and cause electrocoagulation failure. The second insulating part is fixedly installed at the end of the sheath electrode, and the two clamp hooks and the first insulating part are installed on the second insulating part, which can also effectively avoid the occurrence of positive and negative short circuits.

[0014] Preferably, the handle includes a grip handle and a push handle, the push handle is hingedly mounted inside the handle shell through a push handle mounting column, and a pull rod fixing seat is also provided on one end of the push handle arranged inside the handle shell, the pull rod fixing seat is fixedly connected to the pull rod electrode, and the pull rod electrode is driven to move by pressing the push handle, and the push handle is reset by a reset spring; the end of the pull rod electrode is fixedly connected to the pull rod fixing seat, and the pull rod fixing seat is arranged on the push handle, and pressing the push handle can realize the stretching movement of the pull rod, so that medical staff can easily and conveniently realize the opening and closing of the electrocoagulation forceps hook. After pressing the push handle, the pull rod electrode will be stretched backward by force, driving the first forceps hook and the second forceps hook to open. After releasing the push handle, the push handle is reset, the pull rod electrode is reset forward, and the first forceps hook and the second forceps hook are closed.

[0015] In summary, the beneficial effects of the present invention are: 1. The monopolar and bipolar conversion electrocoagulation forceps hook described in the present invention can realize convenient conversion between monopolar and bipolar modes by adjusting the telescopic sleeve and the control switch. There is no need to change surgical instruments. During the operation, the mode switching can be completed by simply stretching or contracting the telescopic sleeve and switching the control switch. This reduces the time for instrument replacement during the operation and improves surgical efficiency. It is more suitable for surgical scenarios that require frequent switching of operating modes. 2. In the single- and bipolar conversion coagulation forceps hook described in the present invention, the sleeve electrode and the pull rod electrode are installed in isolation through the sleeve electrode fixing seat and structural design. At the same time, the mounting structure of the first electrode and the second electrode, as well as the design of the first insulating portion and the second insulating portion on the surgical instrument, can effectively avoid short circuiting of the positive and negative poles of the coagulation forceps hook, ensure that the coagulation forceps hook can work more stably, and improve the working reliability and stability of the coagulation forceps hook; 3. In the monopolar and bipolar conversion electrocoagulation forceps hook described in the present invention, the elastic engaging portion of the second electrode is tightly fitted with the pull rod electrode through elastic force, ensuring the stability of current conduction. The bent portion and elastic sheet of the elastic member can reliably contact the first and second electrodes when the telescopic sleeve is stretched, ensuring smooth current conduction in monopolar mode and improving the stability of current conduction. 4. The monopolar and bipolar conversion electrocoagulation forceps hook of the present invention has a limit groove on the telescopic sleeve and a limit post in the connecting sleeve, which can limit the telescopic travel of the telescopic sleeve and prevent it from slipping out of the handle, thereby ensuring the structural integrity of the surgical instrument and reducing the incidence of surgical instrument failure. 5. The single-polar and bipolar conversion electrocoagulation forceps hook described in the present invention has a hook-shaped structure design of the first hook and the second hook of the electrocoagulation forceps hook, which can better adapt to the scenarios where the flexible use of hook-shaped instruments for precise dissection and hemostasis is required during surgery, greatly improving the use demand of the electrocoagulation forceps hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the monopolar and bipolar conversion electrocoagulation forceps hook of the present invention; Figure 2 This is a schematic diagram of the internal structure of the single- and bipolar conversion electrocoagulation forceps hook of the present invention; Figure 3 This is a schematic diagram of the structure of the handle housing of the monopolar and bipolar conversion electrocoagulation forceps hook of the present invention; Figure 4 This is a schematic diagram of the electrode installation structure of the monopolar and bipolar conversion electrocoagulation forceps hook of the present invention; Figure 5 This is a schematic diagram of the second electrode structure of the monopolar and bipolar conversion electrocoagulation hook of the present invention; Figure 6This is a schematic diagram of the internal structure of the sleeve assembly of the monopolar and bipolar conversion electrocoagulation forceps hook of the present invention; Figure 7 This is a schematic diagram of the elastic component structure of the single- and bipolar conversion electrocoagulation forceps hook of the present invention; Figure 8 This is a schematic structural diagram of the telescopic sleeve of the monopolar and bipolar conversion electrocoagulation forceps hook of the present invention in a contracted state; Figure 9 This is a schematic structural diagram of the telescopic sleeve of the monopolar and bipolar conversion electrocoagulation forceps hook of the present invention in a stretched state; Figure 10 This is a schematic structural diagram of a power cord assembly for a single- and bipolar conversion electrocoagulation forceps hook according to the present invention; Figure 11 It is a schematic diagram of the structure of the surgical instrument of the monopolar and bipolar conversion electrocoagulation forceps hook of the present invention.

[0017] Markings in the figure: 10-handle, 110-grip, 120-handle, 121-handle mounting column, 122-pull rod fixing seat, 123-reset spring, 130-first electrode mounting portion, 140-second electrode mounting portion, 150-fixing column, 20-connecting sleeve, 210-limiting column, 30-sleeve group, 310-telescopic sleeve, 311-limiting groove, 320-sleeve electrode, 330-pull rod electrode, 340-sleeve electrode fixing seat, 40-surgical instrument, 410-first forceps hook, 42 0-Second clamp hook, 430-First insulating part, 440-Second insulating part, 50-Electrode group, 510-First electrode, 520-Second electrode, 521-Mounting groove, 522-Pull rod hole, 523-Elastic clamping part, 530-Elastic member, 531-Clamping part, 532-Elastic sheet, 533-Bending part, 60-Power cord group, 610-Power cord, 620-Bipolar plug, 621-First bipolar plug, 622-Second bipolar plug, 630-Monopole plug, 640-Control switch. DETAILED DESCRIPTION

[0018] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0019] The present invention will be described in detail below with reference to the accompanying drawings using embodiments.

[0020] Example

[0021] according to Figures 1 to 4As shown in the figure, a single-polar and bipolar conversion electrocoagulation forceps hook is characterized by including a handle 10, a connecting sleeve 20, a sleeve assembly 30, a surgical instrument 40, an electrode assembly 50 and a power cord assembly 60. The surgical instrument 40 is arranged at the end of the sleeve assembly 30 away from the handle 10, the electrode assembly 50 is arranged inside the handle 10, and the power cord assembly 60 is electrically connected to the electrode assembly 50. The sleeve assembly 30 includes a telescopic sleeve 310, a sleeve electrode 320, and a pull rod electrode 330. The electrode assembly 50 includes a first electrode 510 and a second electrode 520. The first electrode 510 is electrically connected to the sleeve electrode 320, and the second electrode 520 is electrically connected to the pull rod electrode 330. An elastic member 530 is also fixedly connected to one end of the telescopic sleeve 310 inside the housing of the handle 10. The power cord set 60 includes a power cord 610, a bipolar plug 620 and a monopolar plug 630. By adjusting the position of the elastic member 530, it can be connected or disconnected with the first electrode 510 and the second electrode 520, and the switching of the bipolar plug 620 and the monopolar plug 630 can be coordinated to realize the single-polar and bipolar conversion of the electrocoagulation forceps hook.

[0022] according to Figure 2 、 Figure 3 As shown, a first electrode mounting portion 130 and a second electrode mounting portion 140 are provided in the housing of the handle 10, the first electrode 510 is fixedly mounted on the first electrode mounting portion 130, and the second electrode 520 is fixedly mounted on the second electrode mounting portion 140; a sleeve electrode fixing seat 340 is also fixedly provided on the first electrode mounting portion 130, the sleeve electrode fixing seat 340 is fixedly connected to the first electrode 510, and the sleeve electrode 320 is fixedly provided inside the sleeve electrode fixing seat 340; the first electrode mounting portion 130 is a card slot type structure design, the first electrode 510 is fixedly mounted inside the card slot of the first electrode mounting portion 130, and the card slot is also provided with a sleeve electrode fixing seat The fixed seat 340, the sleeve electrode fixing seat 340 is fixed by the two shells of the handle. The interior of the sleeve electrode fixing seat 340 is a hollow structure, and the sleeve electrode 320 is fixedly installed in the hollow structure inside it. The sleeve electrode fixing seat 340 and the first electrode 510 fit tightly on the first electrode mounting portion 130. The current of the first electrode 510 can be transmitted to the sleeve electrode 320 through the sleeve electrode fixing seat 340. When the telescopic sleeve 310 is adjusted, the two ends of the sleeve electrode fixing seat 340 are just stuck in the slots of the first electrode mounting portion 130, so that the sleeve electrode 320 always remains fixed during the telescopic sleeve 310 extension and contraction process.

[0023] according to Figure 4 、 Figure 5As shown, the second electrode 520 is provided with a mounting groove 521, and a pull rod hole 522 is opened at one end of the mounting groove 521 for the pull rod electrode 330 to pass through, and an elastic clamping part 523 is provided at the other end. The elastic clamping part 523 is tightly fitted with the pull rod of the pull rod electrode 330 through elastic force to realize current conduction; the second electrode 520 is fixedly installed on the second electrode mounting part 140 through the mounting groove 521, and is made of elastic conductive material. The elastic clamping part 523 of the second electrode 520 is clamped and connected with the pull rod electrode 330 through the elastic force of its own elastic material. The current passing through the second electrode 520 can be transmitted to the pull rod electrode 330 after passing through the elastic clamping part 523, completing the current conduction between the second electrode 520 and the pull rod electrode 330, and when the pull rod electrode 330 is stretched, the elastic clamping part 523 of the second electrode 520 can also be tightly fitted and contacted with the pull rod electrode 330.

[0024] according to Figure 6 As shown, the sleeve group 30 is installed on the handle 10 through the connecting sleeve 20, the telescopic sleeve 310 is made of insulating material, and a limiting groove 311 is provided on the telescopic sleeve 310 near the elastic member 530, and a limiting column 210 is provided inside the connecting sleeve 20 to cooperate with the limiting groove 311; the telescopic sleeve 310 and the sleeve electrode 320 are both hollow structures, the sleeve electrode 320 is arranged inside the telescopic sleeve 310, and the pull rod electrode 330 is arranged inside the sleeve electrode 320, wherein the inner diameter of the sleeve electrode 320 is larger than the outer diameter of the pull rod electrode 330; the telescopic sleeve 310 is made of insulating material, which can prevent medical staff from being injured by electric current when adjusting the telescopic sleeve 310 during use, and the limiting groove 311 provided on the telescopic sleeve 310 and the limiting column provided inside the connecting sleeve 20 210 cooperate with each other, the limit column 210 and the limit groove 311 can prevent the telescopic sleeve 310 from rotating during use, thereby ensuring the reliability of the elastic member 530 installed on the telescopic sleeve 310 during use, and the telescopic stroke of the telescopic sleeve 310 is determined by the length of the limit groove 311. When the telescopic sleeve 310 is adjusted to the two ends of the limit groove 311, the telescopic sleeve 310 will be unable to continue to move under the action of the limit column 210, thereby preventing the telescopic sleeve 310 from directly sliding out of the handle 10; the pull rod electrode 330 is arranged inside the sleeve electrode 320, and the pull rod electrode 330 can perform stretching activities inside the sleeve electrode 320. The inner diameter of the sleeve electrode 320 is larger than the outer diameter of the pull rod electrode 330, and the current on the sleeve electrode 320 and the current on the pull rod electrode 330 do not interfere with each other.

[0025] according to Figure 6 、 Figure 7As shown, the elastic member 530 is made of a conductive material and includes a clamping portion 531, an elastic sheet 532 and a bent portion 533. The elastic member 530 is clamped and fixed to the telescopic sleeve 310 through the clamping portion 531. The elastic sheet 532 is fixedly arranged on the clamping portion 531. The elastic sheet 532 extends toward the direction of the second electrode 520 and exceeds the second electrode 520. The bent portion 533 is arranged at the end of the elastic sheet 532 and bends toward the second electrode 520. The clamping portion 531 of the elastic member 530 can be a buckle structure, a clamping structure or a The elastic member 530 is fixedly mounted on the telescopic sleeve 310 via a clamping portion 531 using a fixing method such as a threaded fixing structure. When the telescopic sleeve 310 is extended or retracted, the elastic member 530 can be driven to move together. The clamping portion 531 is provided with an elastic piece 532 extending obliquely upward toward the second electrode 520. The extended end of the elastic piece 532 is further provided with a bent portion 533 facing the second electrode 520. When the telescopic sleeve 310 is in the retracted state, the position of the bent portion 533 exceeds the position of the second electrode 520.

[0026] according to Figure 8 、 Figure 9 As shown, a fixed column 150 is provided inside the shell of the handle 10. In the natural state, when the telescopic sleeve 310 is contracted, the highest point of the bent portion 533 is higher than the lowest point of the fixed column 150; when the telescopic sleeve 310 is stretched, the elastic sheet 532 is elastically deformed under the pressure of the fixed column 150, so that the bent portion 533 contacts the second electrode 520, and the elastic sheet 532 contacts the first electrode 510; the fixed column 150 is arranged above the second electrode mounting portion 140, and the elastic sheet 532 of the elastic member 530 is arranged between the second electrode mounting portion 140 and the fixed column 150. When the telescopic sleeve 310 is contracted, the elastic sheet 532 of the elastic member 530 is in the natural state. When the telescopic sleeve 310 is stretched, the elastic sheet 532 is in the natural state. The sheet 532 will undergo downward elastic deformation due to the pressure applied by the fixed column 150 during the forward movement. When the telescopic sleeve 310 is stretched to the farthest distance, the bent portion 533 on the elastic sheet 532 will come into contact with the second electrode 520 under the action of the deformation, so that the current is conducted between the second electrode 520 and the elastic member 530. The elastic sheet 532 will come into contact with the first electrode 510 under the action of the elastic force, which will connect the originally two independent first electrodes 510 and second electrodes 520 and turn them into a monopolar state, thereby realizing the process of switching the electrocoagulation forceps hook from bipolar to monopolar; conversely, after the telescopic sleeve 310 is retracted, the elastic member 530 will separate from the first electrode 510 and the second electrode 520, and the monopolar state will be switched back to bipolar.

[0027] according to Figure 2 、 Figure 10As shown, the power cord set 60 includes a power cord 610, a bipolar plug 620, a monopolar plug 630 and a control switch 640. The control switch 640 is used to control the switching between the bipolar plug 620 and the monopolar plug 630. The bipolar plug 620 includes a first bipolar plug 621 and a second bipolar plug 622. The first bipolar plug 621 and the second bipolar plug 622 are respectively connected to the positive and negative poles of the main power supply; the control switch 640 is used to switch the working status of the bipolar plug 620 and the monopolar plug 630, wherein the first bipolar plug 621 and the second bipolar plug 622 are used to provide positive and negative currents to the electrocoagulation hook in the bipolar state, while the monopolar plug 630 is used to provide current to the monopolar state of the electrocoagulation hook, and cooperate with the electrode plate attached to the human body to realize the circuit under the monopolar body.

[0028] according to Figure 10 As shown, the positive pole of the power cord 610 is electrically connected to the first electrode 510, and the negative pole of the power cord 610 is electrically connected to the second electrode 520. When the control switch 640 is switched to the monopolar mode, the power cord 610 will be connected to the monopolar plug 630, and cooperate with the movement of the elastic part 530 on the telescopic sleeve 310 to enable the electrocoagulation forceps hook to achieve monopolar and bipolar conversion; the control switch 640 can switch the monopolar and bipolar modes. When the mode needs to be switched, first switch the control switch 640 to the off position, and then stretch or contract the telescopic sleeve 310. After the telescopic sleeve 310 is stretched, it is in the monopolar mode, and after the telescopic sleeve 310 is contracted, it is in the bipolar mode. Then, the gear position of the control switch 640 is set to the corresponding gear position, and the electrocoagulation forceps hook can be switched to the monopolar and bipolar mode more conveniently.

[0029] according to Figure 11As shown, the surgical instrument 40 includes a first forceps hook 410, a second forceps hook 420, a first insulating portion 430 and a second insulating portion 440. The first forceps hook 410 is hinged to the sleeve electrode 320, and the second forceps hook 420 is hinged to the pull rod electrode 330. The first insulating portion 430 is arranged between the first forceps hook 410 and the second forceps hook 420 and is hinged to each other. The second insulating portion 440 is fixedly installed at the end of the protruding end of the sleeve electrode 320; the first forceps hook 410 is electrically connected to the sleeve electrode 320, and the second forceps hook 420 is electrically connected to the pull rod electrode 330. In bipolar mode, the current emitted by the main power supply will reach the first forceps hook 410 through the first electrode 510, and finally flow back to the second forceps hook 420 through the second forceps hook 420. The two electrodes 520 realize the conduction of the bipolar circuit. In the monopolar mode, the current generated by the main power supply will flow to the first clamp hook 410 and the second clamp hook 420 through the first electrode 510 and the second electrode 520, and finally flow back through the electrode plate attached to the human body to complete the conduction of the monopolar circuit; by pulling the pull rod electrode 330, the opening and closing movement of the first clamp hook 410 and the second clamp hook 420 can be controlled, so that the electrocoagulation clamp hook can realize the electrocoagulation function during the operation. A first insulating part 430 is provided between the first clamp hook 410 and the second clamp hook 420 to separate the two. The second insulating part 440 is fixedly installed at the end of the sheath electrode 320, and the two clamp hooks and the first insulating part 430 are all installed on the second insulating part 440.

[0030] according to Figure 2 、 Figure 3 As shown, the handle 10 includes a grip 110 and a push handle 120. The push handle 120 is hingedly mounted inside the housing of the handle 10 through a push handle mounting column 121. A pull rod fixing seat 122 is also provided on one end of the push handle 120 disposed inside the housing of the handle 10. The pull rod fixing seat 122 is fixedly connected to the pull rod electrode 330. By pressing the push handle 120, the pull rod electrode 330 moves, and the push handle 120 is reset by a reset spring 123. The end of the pull rod electrode 330 is connected to the pull rod fixing seat 122. Fixed connection, the pull rod fixing seat 122 is set on the handle 120. Pressing the handle 120 can realize the stretching movement of the pull rod, so that medical staff can easily and conveniently realize the opening and closing of the electrocoagulation forceps hook. After pressing the handle 120, the pull rod electrode 330 will be stretched backward by force, driving the first forceps hook 410 and the second forceps hook 420 to open. After releasing the handle 120, the handle 120 is reset, the pull rod electrode 330 is reset forward, and the first forceps hook 410 and the second forceps hook 420 are closed.

Claims

1. A single-polar and bipolar conversion electrocoagulation forceps hook, characterized in that: The surgical instrument comprises a handle (10), a sleeve group (30), a surgical instrument (40), an electrode group (50), and a power cord group (60), wherein the surgical instrument (40) is arranged at an end of the sleeve group (30) away from the handle (10), the electrode group (50) is arranged inside the handle (10), and the power cord group (60) is electrically connected to the electrode group (50); The sleeve group (30) includes a telescopic sleeve (310), a sleeve electrode (320) and a pull rod electrode (330); the electrode group (50) includes a first electrode (510) and a second electrode (520); the first electrode (510) is electrically connected to the sleeve electrode (320); the second electrode (520) is electrically connected to the pull rod electrode (330); and the telescopic sleeve (310) is further fixedly connected to an elastic member (530) at one end inside the housing of the handle (10); The power cord assembly (60) includes a power cord (610), a bipolar plug (620) and a monopolar plug (630). By adjusting the position of the elastic member (530), the elastic member (530) can be connected or disconnected with the first electrode (510) and the second electrode (520). By coordinating the switching of the bipolar plug (620) and the monopolar plug (630), the monopolar and bipolar conversion of the electrocoagulation forceps hook can be realized.

2. The single-polar and bipolar conversion electrocoagulation hook according to claim 1, characterized in that: A first electrode mounting portion (130) and a second electrode mounting portion (140) are provided in the housing of the handle (10), the first electrode (510) is fixedly mounted on the first electrode mounting portion (130), and the second electrode (520) is fixedly mounted on the second electrode mounting portion (140); a sleeve electrode fixing seat (340) is also fixedly provided on the first electrode mounting portion (130), the sleeve electrode fixing seat (340) is fixedly connected to the first electrode (510), and the sleeve electrode (320) is fixedly provided inside the sleeve electrode fixing seat (340).

3. The single-polar and bipolar conversion electrocoagulation hook according to claim 1, characterized in that: The second electrode (520) is provided with a mounting groove (521), one end of the mounting groove (521) is provided with a pull rod hole (522) for the pull rod electrode (330) to pass through, and the other end is provided with an elastic clamping portion (523), and the elastic clamping portion (523) is tightly fitted with the pull rod of the pull rod electrode (330) through elastic force to achieve current conduction.

4. The single-polar and bipolar conversion electrocoagulation hook according to claim 1, characterized in that: The invention also includes a connecting sleeve (20); the sleeve group (30) is installed on the handle (10) through the connecting sleeve (20); the telescopic sleeve (310) is made of insulating material; a limiting groove (311) is provided on the telescopic sleeve (310) near the elastic member (530); and a limiting column (210) is provided inside the connecting sleeve (20) to cooperate with the limiting groove (311); the telescopic sleeve (310) and the sleeve electrode (320) are both hollow structures, the sleeve electrode (320) is provided inside the telescopic sleeve (310), and the pull rod electrode (330) is provided inside the sleeve electrode (320), wherein the inner diameter of the sleeve electrode (320) is larger than the outer diameter of the pull rod electrode (330).

5. The monopolar and bipolar conversion electrocoagulation hook according to claim 1, characterized in that: The elastic member (530) is made of a conductive material and comprises a clamping portion (531), an elastic sheet (532), and a bent portion (533); the elastic member (530) is clamped and fixed to the telescopic sleeve (310) via the clamping portion (531); the elastic sheet (532) is fixedly arranged on the clamping portion (531); the elastic sheet (532) extends in the direction of the second electrode (520) and exceeds the second electrode (520); and the bent portion (533) is arranged at the end of the elastic sheet (532) and bends in the direction of the second electrode (520).

6. The monopolar and bipolar conversion electrocoagulation hook according to claim 5, characterized in that: A fixed column (150) is provided inside the housing of the handle (10). In a natural state, when the telescopic sleeve (310) contracts, the highest point of the bent portion (533) is higher than the lowest point of the fixed column (150); when the telescopic sleeve (310) is stretched, the elastic sheet (532) undergoes elastic deformation under the pressure of the fixed column (150), so that the bent portion (533) contacts the second electrode (520), and the elastic sheet (532) contacts the first electrode (510).

7. The monopolar and bipolar conversion electrocoagulation hook according to claim 1, characterized in that: The power cord assembly (60) further includes a control switch (640), wherein the control switch (640) is used to control the switching between the bipolar plug (620) and the monopolar plug (630), wherein the bipolar plug (620) includes a first bipolar plug (621) and a second bipolar plug (622), wherein the first bipolar plug (621) and the second bipolar plug (622) are connected to the positive and negative poles of the main power supply, respectively.

8. The monopolar and bipolar conversion electrocoagulation hook according to claim 7, characterized in that: The positive pole of the power cord (610) is electrically connected to the first electrode (510), and the negative pole of the power cord (610) is electrically connected to the second electrode (520). When the control switch (640) is switched to the monopolar mode, the power cord (610) is connected to the monopolar plug (630), and cooperates with the movement of the elastic part (530) on the telescopic sleeve (310) to enable the electrocoagulation forceps hook to achieve monopolar and bipolar conversion.

9. The monopolar and bipolar conversion electrocoagulation hook according to claim 1, characterized in that: The surgical instrument (40) includes a first forceps hook (410), a second forceps hook (420), a first insulating portion (430) and a second insulating portion (440), wherein the first forceps hook (410) is hinged to the sleeve electrode (320), the second forceps hook (420) is hinged to the pull rod electrode (330), the first insulating portion (430) is arranged between the first forceps hook (410) and the second forceps hook (420) and are hinged to each other, and the second insulating portion (440) is fixedly mounted on the end of the protruding end of the sleeve electrode (320).

10. The monopolar and bipolar conversion electrocoagulation hook according to claim 1, characterized in that: The handle (10) includes a grip (110) and a push handle (120), wherein the push handle (120) is hingedly mounted inside the handle (10) shell via a push handle mounting column (121), and a pull rod fixing seat (122) is also provided on one end of the push handle (120) disposed inside the handle (10) shell. The pull rod fixing seat (122) is fixedly connected to the pull rod electrode (330), and the pull rod electrode (330) is driven to move by pressing the push handle (120), and the push handle (120) is reset by a reset spring (123).

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