Anti-electric-shock water injection type high-frequency electrotome

Abstract

The utility model relates to an anti-electric-shock water injection type high-frequency electrotome which comprises a shaft assembly and a handle which are connected in sequence. The shaft assembly comprises a sleeve and an electrode of a tubular structure, the electrode is inserted into the sleeve, and the far end of the electrode extends out of the sleeve. The handle comprises a water pump, a liquid inlet pipe, an adaptive shell and a handle shell for holding, the adaptive shell and the handle shell are sequentially connected, the water pump is installed in the handle shell, the near end of the sleeve is installed at the far end of the adaptive shell, and the near end of the electrode extends out of the sleeve and is inserted into the adaptive shell to be communicated with a liquid outlet of the water pump through the liquid inlet pipe; the liquid inlet pipe comprises a first liquid inlet pipe part and a second liquid inlet pipe part, the first liquid inlet pipe part is communicated with the second liquid inlet pipe part through a gate valve located in the adaptive shell, the gate valve is provided with a rotating wheel used for driving a gate to open and close the valve, and the rotating wheel is located on the outer surface of the adaptive shell. When the high-frequency electrotome executes cutting and coagulation operations, current can be prevented from being conducted to the handle along a water path, and the use safety of operators is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relates to a kind of anti-electric shock water injection type high-frequency electrotome. BACKGROUND

[0002] High-frequency electrotome is a kind of electric surgical instrument that replaces mechanical scalpel to cut tissue. It realizes the separation and coagulation of body tissue by heating tissue when high-frequency high-voltage current generated by the tip of active electrode contacts the body, so as to achieve the purpose of cutting and hemostasis. High-frequency electrotome needs to match corresponding neutral plate during use. When using, the neutral plate is pasted on the part of patient's muscle, which can guide the current gathered in the human body back to high-frequency electrotome and other instruments, so as to form a complete high-frequency loop. In this way, when using high-frequency surgery, the current can be dispersed, the risk of current concentration is reduced, the current is safely collected and transmitted to the outside of the human body, and the safety of the patient is protected.

[0003] The operation of endoscopic mucosal resection is to inject medical liquid (such as normal saline) under the mucosa to lift the diseased tissue, and then separate the mucosal layer from the muscular layer, and then use high-frequency electrotome to remove the diseased tissue. Referring to the Chinese utility model patent with the application date of August 22, 2024 and the publication date of October 1, 2024 and the publication number of CN221786594U, there is a water injection type high-frequency electrotome. The electrode of the high-frequency electrotome is in a tubular structure. The proximal end of the electrode is in communication with the liquid outlet of the water pump through the liquid inlet pipe. The liquid inlet pipe and the water pump are both located in the handle of the high-frequency electrotome. The liquid inlet of the water pump is in communication with the liquid storage bag externally provided on the high-frequency electrotome. The distal end of the electrode is used for cutting and coagulating. The water injection type high-frequency electrotome can realize the functions of cutting, coagulating, and injecting medical liquid to tissue. That is, only one instrument can realize the medical liquid injection operation and the diseased tissue cutting and coagulating operation in endoscopic mucosal resection, which reduces the cost of surgery and makes the operation process simpler.

[0004] However, since the high-frequency electrotome integrates the water injection system, after the high-frequency electrotome injects medical liquid to the tissue, the tubular electrode and the liquid inlet pipe will still be filled with water. When the high-frequency electrotome performs cutting and coagulating operation, the current will conduct along the water path to the handle, which may cause the risk of electric shock to the operator.

[0005] Therefore, there is an urgent need for an anti-electric shock water injection type high-frequency electrotome. UTILITY MODEL CONTENT

[0006] (I) Technical problem to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an anti-electric shock water injection type high-frequency electrotome, which can avoid the current conducting along the water path to the handle when the high-frequency electrotome performs cutting and coagulating operation, thereby improving the safety of the operator.

[0008] (ii) Technical Solution

[0009] To achieve the above object, the utility model adopts the main technical scheme including:

[0010] The utility model provides a kind of anti-electric shock water injection type high-frequency electric knife, including the shaft assembly and handle connected in turn;Shaft assembly includes sleeve and tubular structure electrode, electrode is inserted in sleeve and is supported in sleeve, the distal end of electrode extends sleeve;Handle includes water pump, liquid inlet pipe, the adaptive shell and the handle part shell for holding connected in turn, water pump is installed in handle part shell, the proximal end of sleeve is installed in the distal end of adaptive shell, the proximal end of electrode extends sleeve and is inserted into adaptive shell, the liquid outlet of water pump is communicated with the proximal end of electrode by liquid inlet pipe, and the liquid inlet of water pump is communicated with the liquid outlet of water pump;Liquid inlet pipe includes first liquid inlet pipe part and second liquid inlet pipe part, and first liquid inlet pipe part is communicated with second liquid inlet pipe part by plug valve in adaptive shell, plug valve has rotating wheel for driving plug valve, and rotating wheel is located on the outer surface of adaptive shell.

[0011] Optionally, adaptive shell extends along the direction of distance, handle part shell extends along the direction of height, adaptive shell and handle part shell are connected to form pistol shape, and the internal cavity of adaptive shell is communicated with the internal cavity of handle part shell.

[0012] Optionally, the included angle between adaptive shell and handle part shell is 90°-130°.

[0013] Optionally, rotating wheel is located at the position of adaptive shell corresponding to handle part shell, and rotating wheel is located on the left side surface or right side surface of handle part shell.

[0014] Optionally, plug valve includes valve body, valve body is provided with valve port, plug valve is provided with plug for opening and closing valve port, transmission mechanism is arranged on the side of plug away from valve body, the power output end of transmission mechanism is connected with plug, and the power input end of transmission mechanism is connected with rotating wheel;Rotating wheel is actuated, and plug is driven to reciprocate linearly by transmission mechanism to open and close valve port;First liquid inlet pipe part is fixedly connected with valve body, second liquid inlet pipe part is fixedly connected with valve body, and first liquid inlet pipe part is communicated with second liquid inlet pipe part through valve port.

[0015] Optionally, plug is made of rubber material, and the slot for inserting plug on valve body has first side surface and second side surface arranged in sequence along water flow direction;During reciprocating linear motion of plug, plug is always tightly attached to first side surface and second side surface of slot.

[0016] Optionally, valve port is circular through hole, slot is U-shaped, plug is U-shaped, and each edge of slot is located outside each edge of valve port.

[0017] Optionally, the transmission mechanism comprises a first screw rod and a second screw rod rotatably installed in the adapter housing, the first screw rod and the second screw rod are synchronously connected, a first threaded block is threadedly connected to the first screw rod, a second threaded block is threadedly connected to the second screw rod, the first threaded block and the second threaded block are fixedly connected with the plug plate respectively, and an end of the first screw rod away from the valve body is fixedly connected with the rotating wheel coaxially.

[0018] Optionally, a first gear is coaxially arranged at an end of the first screw rod away from the valve body, a second gear is coaxially arranged at an end of the second screw rod away from the valve body, and the first gear and the second gear are engaged; or a first belt pulley is coaxially arranged at an end of the first screw rod away from the valve body, a second belt pulley is coaxially arranged at an end of the second screw rod away from the valve body, and the first belt pulley is in transmission connection with the second belt pulley through a belt.

[0019] Optionally, the handle further comprises an adapter pipe fixedly installed in the adapter housing, a liquid inlet is formed in a bottom of the adapter pipe, a liquid outlet is formed in a front side of the adapter pipe, the liquid outlet of the water pump is in communication with the liquid inlet through a liquid inlet pipe, and the liquid outlet is in communication with the proximal end of the electrode.

[0020] (Three) beneficial effects

[0021] The utility model discloses an electric shock prevention water injection type high-frequency electric knife, the distal end of the electrode stretches out the sleeve, the electrode is electrified, the distal end of the electrode can be used as the cutting and coagulating part, realizes the cutting and hemostasis of the tissue, the electrode is the tubular structure, and the proximal end of the electrode is in communication with the liquid outlet of the water pump, when the liquid inlet is in communication with the liquid storage equipment located outside the handle housing, starts the water pump, and the high-frequency electric knife can realize the liquid injection function, and then can realize the liquid injection of the tissue. After the high-frequency electric knife carries out the medical liquid injection to the tissue, the tubular electrode and the liquid inlet pipe are filled with water, by the rotation of the rotating wheel, drives the plug plate to seal the closed valve, can physically isolate the water section of the first liquid inlet pipe part and the water section of the second liquid inlet pipe part, prevents the direct exchange of water molecules or ions between the two sections, that is, the current path cannot be formed between the two sections of water, and then when the high-frequency electric knife executes the cutting and coagulating operation, the current cannot conduct electricity along the waterway to the handle, avoids the electric shock risk of the operator. DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of the high-frequency electric knife according to the utility model embodiment;

[0023] Figure 2 It is the sectional view schematic diagram of the high-frequency electric knife according to the utility model embodiment;

[0024] Figure 3 It is Figure 2 The enlarged schematic diagram of A in the middle;

[0025] Figure 4Structure schematic view of plug-in valve according to the embodiment of the present application;

[0026] Figure 5 Cooperation schematic view of rotating wheel and transmission mechanism according to the embodiment of the present application;

[0027] Figure 6 Structure schematic view of valve body according to the embodiment of the present application.

[0028] Explanation of reference signs

[0029] 11: sleeve; 12: electrode;

[0030] 21: water pump; 22: first liquid inlet pipe part; 23: second liquid inlet pipe part; 24: adaptive housing; 25: handle housing; 26: infusion port; 27: adapter pipe;

[0031] 3: plug-in valve;

[0032] 31: rotating wheel; 32: plug-in plate; 33: valve body; 34: plug-in slot;

[0033] 41: first screw rod; 42: second screw rod; 43: first threaded block; 44: second threaded block; 45: first belt pulley; 46: second belt pulley; 47: belt;

[0034] 5: plug;

[0035] 61: water injection button; 62: electrocoagulation button; 63: electrocision button. DETAILED DESCRIPTION

[0036] In order to better explain the present application, so as to facilitate understanding, the present application is described in detail below by specific embodiments, in combination with the drawings. Wherein, the "near" mentioned in this paper refers to the side close to the operator, and the "far" refers to the side close to the patient. The "upper", "lower", "front", "rear", "left", "right" and other orientation terms mentioned in this paper are with the orientation of the figure as the reference, wherein the direction from back to front is also the direction from near to far. Figure 1

[0037] As Figures 1 to 3 ​As shown, the embodiment provides a shockproof water injection type high-frequency electric knife. The shockproof water injection type high-frequency electric knife comprises a shaft assembly and a handle connected in sequence; the shaft assembly comprises a sleeve 11 and a tubular electrode 12, the electrode 12 is inserted into the sleeve 11 and supported in the sleeve 11, and the distal end of the electrode 12 extends out of the sleeve 11; the handle comprises a water pump 21, a liquid inlet pipe, an adaptive shell 24 and a handle shell 25 for holding connected in sequence, the water pump 21 is installed in the handle shell 25, the proximal end of the sleeve 11 is installed at the distal end of the adaptive shell 24, the proximal end of the electrode 12 extends out of the sleeve 11 and is inserted into the adaptive shell 24, the liquid outlet of the water pump 21 is communicated with the proximal end of the electrode 12 through the liquid inlet pipe, and the handle shell 25 is provided with a liquid outlet 26 communicated with the liquid inlet of the water pump 21; the liquid inlet pipe comprises a first liquid inlet pipe 22 and a second liquid inlet pipe 23, the first liquid inlet pipe 22 is communicated with the second liquid inlet pipe 23 through a plug-in plate 32 valve 3, the plug-in plate 32 valve 3 is provided with a rotating wheel 31 for driving the plug-in plate 32 to open and close the valve, and the rotating wheel 31 is located on the outer surface of the adaptive shell 24.

[0038] The shockproof water injection type high-frequency electric knife is arranged as above, the distal end of the electrode 12 extends out of the sleeve 11, the distal end of the electrode 12 can serve as a cutting and coagulating part after the electrode 12 is electrified, so that the cutting and hemostasis of the tissue can be realized; since the electrode 12 is in a tubular structure, the proximal end of the electrode 12 is communicated with the liquid outlet of the water pump 21, when the liquid outlet 26 is communicated with a liquid storage device outside the handle shell 25, the water pump 21 is started, the high-frequency electric knife can realize the liquid injection function, and then the liquid injection to the tissue can be realized. After the high-frequency electric knife injects the medical liquid to the tissue, the tubular electrode 12 and the liquid inlet pipe are filled with water, by rotating the rotating wheel 31 to drive the plug-in plate 32 to seal and close the valve, the water sections of the first liquid inlet pipe 22 and the second liquid inlet pipe 23 can be physically isolated, the direct exchange of water molecules or ions between the two sections is prevented, that is, the current cannot form a current path between the two water sections, and then when the high-frequency electric knife performs the cutting and coagulating operation, the current cannot conduct along the water path to the handle, so that the risk of electric shock of the operator is avoided.

[0039] It should be noted that the high-frequency electric knife provided by the utility model realizes the water injection function and the cutting and coagulating function separately and does not interfere with each other, that is, the high-frequency electric knife does not perform the cutting and coagulating when it performs the water injection, and does not perform the water injection when it performs the cutting and coagulating.

[0040] In the embodiment, the sleeve 11 can be made of insulating material to avoid the electrode 12 from leaking electricity outward at an unexpected position. In order to further improve the safety of the high-frequency electric knife, the liquid inlet pipe and the plug-in plate 32 valve 3 are made of insulating material.

[0041] Preferably, the adapter housing 24 extends in the fore-aft direction, the handle housing 25 extends in the up-down direction, the adapter housing 24 and the handle housing 25 are connected to form a pistol shape, and the internal cavity of the adapter housing 24 is in communication with the internal cavity of the handle housing 25. The thus arranged housing is ergonomic, facilitating the user to hold the high-frequency electrotome and further facilitating the user to operate.

[0042] Further preferably, the included angle between the adapter housing 24 and the handle housing 25 is 90°-130°.

[0043] Preferably, the rotating wheel 31 is located at a position of the adapter housing 24 corresponding to the handle housing 25, and the rotating wheel 31 is located on the left side surface or the right side surface of the handle housing 25. In this way, after the user holds the handle housing 25, the user's thumb can easily rotate the rotating wheel 31 to adjust the opening and closing of the plug plate 32 valve 3.

[0044] Preferably, as shown in Figures 4 to 6 the plug plate 32 valve 3 comprises a valve body 33, a valve port is formed on the valve body 33, a plug plate 32 for opening and closing the valve port is inserted on the valve body 33, a transmission mechanism is arranged on the side of the plug plate 32 away from the valve body 33, the power output end of the transmission mechanism is connected with the plug plate 32, and the power input end of the transmission mechanism is connected with the rotating wheel 31; rotating the rotating wheel 31 drives the plug plate 32 to make reciprocating linear motion through the transmission mechanism to open and close the valve port. The first liquid inlet pipe portion 22 is fixedly connected with the valve body 33, the second liquid inlet pipe portion 23 is fixedly connected with the valve body 33, and the first liquid inlet pipe portion 22 is in communication with the second liquid inlet pipe portion 23 through the valve port. The thus arranged plug plate 32 valve 3 has a simple structure, facilitating the connection of the first liquid inlet pipe portion 22 with the valve body 33 and the connection of the second liquid inlet pipe portion 23 with the valve body 33.

[0045] Further preferably, the plug plate 32 is made of rubber, the insertion slot 34 on the valve body 33 for inserting the plug plate 32 has a first side surface and a second side surface arranged in sequence along the water flow direction; during the reciprocating linear motion of the plug plate 32, the plug plate 32 is always tightly attached to the first side surface and the second side surface of the insertion slot 34. In this way, stable sealing between the plug plate 32 and the valve body 33 is achieved.

[0046] Further preferably, the valve port is a circular through hole, the insertion slot 34 is in U shape, the plug plate 32 is in U shape, and each edge of the insertion slot 34 is located outside each edge of the valve port. Generally, the size of the insertion slot 34 is equivalent to that of the plug plate 32, and by designing each edge of the insertion slot 34 to be located outside each edge of the valve port, the sealing between the plug plate 32 and the valve body 33 is further improved.

[0047] Further preferably, the transmission mechanism comprises a first screw rod 41 and a second screw rod 42 rotatably installed in the adapter housing 24, the first screw rod 41 and the second screw rod 42 are synchronously connected, a first threaded block 43 is threadedly connected to the first screw rod 41, a second threaded block 44 is threadedly connected to the second screw rod 42, the first threaded block 43 and the second threaded block 44 are fixedly connected with the plug plate 32 respectively, and an end of the first screw rod 41 away from the valve body 33 is coaxially fixedly connected with the rotating wheel 31. In this way, rotating the rotating wheel 31 will drive the first screw rod 41 and the second screw rod 42 to rotate synchronously, and then the first threaded block 43 and the second threaded block 44 will move linearly along the screw rods synchronously to drive the plug plate 32 to move linearly reciprocatingly.

[0048] Further, a first pulley 45 is coaxially arranged at an end of the first screw rod 41 away from the valve body 33, a second pulley 46 is coaxially arranged at an end of the second screw rod 42 away from the valve body 33, and the first pulley 45 is in transmission connection with the second pulley 46 through a belt 47. In this way, the synchronous connection of the first screw rod 41 and the second screw rod 42 can be realized.

[0049] Alternatively, a first gear is coaxially arranged at an end of the first screw rod 41 away from the valve body 33, a second gear is coaxially arranged at an end of the second screw rod 42 away from the valve body 33, and the first gear is in meshing connection with the second gear. In this way, the synchronous connection of the first screw rod 41 and the second screw rod 42 can also be realized.

[0050] Preferably, the handle further comprises an adapter pipe 27 fixedly installed in the adapter housing 24, a liquid inlet is formed in a bottom of the adapter pipe 27, a liquid outlet is formed in a front side of the adapter pipe 27, the liquid outlet of the water pump 21 is in communication with the liquid inlet through a liquid inlet pipe, and the liquid outlet is in communication with the proximal end of the electrode 12. In this way, the adapter pipe 27 facilitates the communication and installation of the proximal end of the electrode 12 with the liquid outlet of the water pump 21.

[0051] Preferably, as shown in Figure 1 the high-frequency electrotome further comprises a plug 5 for plugging the electrotome main machine, the plug 5 is located outside the handle, the plug 5 is connected with a circuit board assembly arranged in the handle through wires, a water injection button 61, a coagulation button 62 and an incision button 63 are arranged on the housing, the water injection button 61, the coagulation button 62, the incision button 63, the electrode 12 and the water pump 21 are all electrically connected with the circuit board assembly. In this way, the plug 5 is connected with the circuit board assembly arranged inside the housing through wires, the electrode 12 and the water pump 21 are all electrically connected with the circuit board assembly, the electrotome main machine can supply power to the water pump 21 and the electrode 12, so as to make the water pump 21 work to realize the water injection operation of the electrotome and make the electrode 12 perform the incision and coagulation operation; the water injection button 61, the coagulation button 62 and the incision button 63 are all electrically connected with the circuit board assembly, which provides a structural basis for the user to control the electrotome to realize the water injection, incision and coagulation functions.

[0052] Further preferably, the handle housing 25 comprises a button area and a holding area connected in sequence from top to bottom, the water injection button 61 is arranged on the front side or the left side of the button area, the electrocoagulation button 62 is arranged on the front side or the left side of the button area, and the electrotome button 63 is arranged on the front side or the left side of the button area. In this way, the user can conveniently operate the buttons. In the embodiment, the electrotome button 63 is arranged on the front side of the button area, and the electrocoagulation button 62 and the water injection button 61 are both arranged on the left side of the button area.

[0053] In the description of the present application, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0054] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature is "above", "above" and "above" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0056] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0057] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A water-injection type high-frequency electrosurgical unit with anti-electric shock properties, characterized in that: The shaft assembly and the handle are connected in sequence; The shaft assembly comprises a sleeve (11) and a tubular electrode (12), the electrode (12) is inserted into the sleeve (11) and supported in the sleeve (11), and a distal end of the electrode (12) extends out of the sleeve (11); The handle comprises a water pump (21), a liquid inlet pipe, a fitting housing (24) and a handle housing (25) for holding, the water pump (21) is installed in the handle housing (25), a proximal end of the sleeve (11) is installed at a distal end of the fitting housing (24), a proximal end of the electrode (12) extends out of the sleeve (11) and is inserted into the fitting housing (24), a liquid outlet of the water pump (21) is communicated with the proximal end of the electrode (12) through the liquid inlet pipe, and a liquid outlet port (26) is formed on the handle housing (25) and communicated with a liquid inlet port of the water pump (21); The liquid inlet pipe comprises a first liquid inlet pipe portion (22) and a second liquid inlet pipe portion (23), the first liquid inlet pipe portion (22) is communicated with the second liquid inlet pipe portion (23) through a valve (3) of a plug plate (32) located in the fitting housing (24), the valve (3) of the plug plate (32) has a rotating wheel (31) for driving the plug plate (32) to open and close the valve port, and the rotating wheel (31) is located on an outer surface of the fitting housing (24).

2. The water-jet high-frequency electric knife for preventing electric shock according to claim 1, characterized in that: The fitting housing (24) extends along a proximal-distal direction, the handle housing (25) extends along an up-down direction, the fitting housing (24) and the handle housing (25) are connected to form a pistol shape, and an internal cavity of the fitting housing (24) is communicated with an internal cavity of the handle housing (25).

3. The water-jet high-frequency electric knife for preventing electric shock according to claim 2, characterized in that: An included angle between the fitting housing (24) and the handle housing (25) is 90°-130°.

4. The water-jet high-frequency electric knife for preventing electric shock according to claim 2, wherein: The rotating wheel (31) is located at a position of the fitting housing (24) corresponding to the handle housing (25), and the rotating wheel (31) is located on a left side surface or a right side surface of the handle housing (25).

5. The water-jet high-frequency electric knife for preventing electric shock according to claim 1, characterized by: The valve (3) of the plug plate (32) comprises a valve body (33), a valve port is formed on the valve body (33), a plug plate (32) for opening and closing the valve port is inserted into the valve body (33), a transmission mechanism is arranged on a side of the plug plate (32) away from the valve body (33), a power output end of the transmission mechanism is connected with the plug plate (32), and a power input end of the transmission mechanism is connected with the rotating wheel (31); the rotating wheel (31) is rotated, the plug plate (32) is driven by the transmission mechanism to make a reciprocating linear motion to open and close the valve port; The first liquid inlet pipe portion (22) is fixedly connected with the valve body (33), the second liquid inlet pipe portion (23) is fixedly connected with the valve body (33), and the first liquid inlet pipe portion (22) is communicated with the second liquid inlet pipe portion (23) through the valve port.

6. The water-jet high-frequency electric knife for preventing electric shock according to claim 5, wherein: The plug plate (32) is made of rubber, and a plug groove (34) for inserting the plug plate (32) has a first side surface and a second side surface arranged in sequence along a water flow direction; In the reciprocating linear motion of the plug plate (32), the plug plate (32) is always tightly attached to the first side surface and the second side surface of the plug groove (34).

7. The water-jet high-frequency electric knife for preventing electric shock according to claim 5, wherein: The valve port is a circular through hole, the plug groove (34) is in a U shape, the plug plate (32) is in a U shape, and each edge of the plug groove (34) is located outside each edge of the valve port.

8. The water-jet high-frequency electric knife for preventing electric shock according to claim 5, wherein: The transmission mechanism comprises a first screw rod (41) and a second screw rod (42) which are rotatably installed in the adapter shell (24), the first screw rod (41) and the second screw rod (42) are synchronously connected, a first threaded block (43) is threadedly connected to the first screw rod (41), a second threaded block (44) is threadedly connected to the second screw rod (42), the first threaded block (43) and the second threaded block (44) are fixedly connected with the plug plate (32) respectively, and the end of the first screw rod (41) away from the valve body (33) is coaxially fixedly connected with the rotating wheel (31).

9. The water-jet high-frequency electric knife for preventing electric shock according to claim 8, characterized in that: The end of the first screw rod (41) away from the valve body (33) is coaxially provided with a first gear, the end of the second screw rod (42) away from the valve body (33) is coaxially provided with a second gear, and the first gear and the second gear are engaged; or, The end of the first screw rod (41) away from the valve body (33) is coaxially provided with a first belt pulley (45), the end of the second screw rod (42) away from the valve body (33) is coaxially provided with a second belt pulley (46), and the first belt pulley (45) is drivingly connected with the second belt pulley (46) through a belt (47).

10. The water-jet high-frequency electric knife for preventing electric shock according to claim 1, characterized by: The handle further comprises a switching pipe (27) which is fixedly installed in the adapter shell (24), a liquid inlet is formed in the bottom of the switching pipe (27), a liquid outlet is formed in the front side of the switching pipe (27), the liquid outlet of the water pump (21) is communicated with the liquid inlet through a liquid inlet pipe, and the liquid outlet is communicated with the proximal end of the electrode (12).

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