Handheld pressure-adjustable irrigation and suctioning electrocoagulation cutting instrument

Abstract

The present invention relates to the technical field of electrocoagulation cutting instruments, and in particular, to a handheld pressure-adjustable irrigation and suctioning electrocoagulation cutting instrument, comprising: a connecting rod, wherein an irrigation channel and a suctioning channel are spaced in the connecting rod; a cutting head is disposed at the left end of the connecting rod; a suctioning port communicated with the suctioning channel is formed in the cutting head; the head end of the irrigation channel penetrates through the left end of the connecting rod; a connector is disposed at the right end of the connecting rod; a mechanical conveying mechanism for conveying tissue debris cut by the electrocoagulation cutting instrument from the tail end of the suctioning channel to a middle way of the connector is disposed on the connecting rod; the front way and the rear way of the connector are respectively provided with an irrigation connector and a suctioning connector; a partition block for partitioning the front way from the other two ways is disposed in the connector; a regulating valve communicated with the tail end of the irrigation channel is disposed at the middle of the connecting rod; a transfer pipe is disposed between the regulating valve and the front way of the connector. The present invention provides an electrocoagulation cutting instrument capable of avoiding pipe blockage and achieving a good cleaning effect.

Description

A hand-held pressure-adjustable irrigation, suction, and electrocoagulation cutter Technical Field

[0001] The present invention relates to the technical field of electrocoagulation cutters, and in particular to a hand-controlled pressure-adjustable flushing and suction electrocoagulation cutter. Background Art

[0002] An electrocoagulation cutter is a cutting device that replaces traditional mechanical scalpels and is used for tissue cutting and coagulation during surgical operations. The electrocoagulation cutter mainly uses high-frequency, high-voltage current generated by effective electrodes to achieve the separation and coagulation of body tissues.

[0003] Chinese Patent No. CN217660097U provides a hand-held, adjustable-pressure irrigation and suction electrocoagulation cutter, comprising a handle, plug, power cord, soft rubber, button, push button, rotary wheel, function tube, three-way valve, and electric hook head. The utility model is compact and easy to operate by gripping. The suction valve with stepless speed adjustment effectively maintains pneumoperitoneum balance, ensuring that surgical operations are not affected. The special design of the electric hook head improves cutting efficiency. However, during the surgical tissue cutting and separation operation, some tissue will inevitably fall into the tissue fluid and irrigation fluid. When using existing electrocoagulation cutters for suction, there is a risk of tissue clogging the pipeline. The suction port of the device directly draws irrigation fluid and tissue fluid, which can easily be drawn into the tissue and cause damage if not operated properly. In addition, current electrocoagulation cutters use the same pipeline for irrigation and suction. The suction fluid remaining on the pipeline wall can be flushed back into the body during the irrigation process, resulting in poor cleaning effect and easy residue. Therefore, a hand-held, adjustable-pressure irrigation and suction electrocoagulation cutter is needed.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a hand-controlled pressure-adjustable irrigation, suction and electrocoagulation cutter to solve the technical problems existing in the above-mentioned background technology.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A hand-controlled grip-type adjustable pressure flushing and suction electrocoagulation cutter, comprising: a connecting rod, wherein a flushing channel and a suction channel spaced apart from each other are provided inside the connecting rod, a cutting head is provided at the left end of the connecting rod, a suction port connected to the suction channel is provided on the cutting head, the head end of the flushing channel passes through the left end of the connecting rod, and a connecting head is provided at the right end of the connecting rod. The connecting head is a three-way connector, and a mechanical transmission mechanism is provided on the connecting rod for transporting tissue debris cut by the electrocoagulation cutter from the end of the suction channel to the middle channel of the connecting head. The front and rear channels of the connecting head are respectively provided with a flushing connector and a suction connector, and a partition block is provided inside the connecting head for isolating its front channel from the other two channels, a regulating valve connected to the end of the flushing channel is provided in the middle of the connecting rod, and a transmission pipe is provided between the regulating valve and the front channel of the connecting head.

[0008] Furthermore, the cutting head is a flat ellipsoid, and the cutting head forms an angle of 150° with the connecting rod.

[0009] Furthermore, the suction port is opened at the center of the side curved surface of the cutting head, and the edge of the suction port is configured to be rounded and smooth.

[0010] Furthermore, a handle is provided on the outer wall of the connecting rod, and the handle is covered on the outside of the handle. The regulating valve, connecting head and transmission pipe are all covered by the handle. The front and rear ports of the connecting head extend to the outside of the handle, and a control switch is provided on the handle.

[0011] Furthermore, the mechanical transmission mechanism includes: a transmission screw and a micro reduction motor, a transmission cavity is opened on the right side of the connecting rod, the transmission cavity is connected to the suction channel, the transmission screw is arranged in the transmission cavity and cooperates with the transmission cavity, the micro reduction motor is fixedly installed at the right end of the connecting head, the right end of the transmission screw is fixedly connected to the output end of the micro reduction motor, the output end of the micro reduction motor passes through and rotates to connect the connecting head, and the micro reduction motor is provided with a sealing sleeve at the contact position with the connecting head.

[0012] Furthermore, a first anti-stripping pattern and a second anti-stripping pattern are respectively provided on the outer walls of the flushing connector and the suction connector, the single-circle texture of the first anti-stripping pattern is sloped, the first anti-stripping pattern has a slope on the side facing the liquid inlet of the flushing connector and the back side is perpendicular to the flushing connector, and the second anti-stripping pattern has the same shape as the first anti-stripping pattern.

[0013] Furthermore, the regulating valve is hollow cylindrical, and is respectively provided with a first flow hole and a rotating circular hole at both ends, the flow hole is connected to the tail end of the flushing channel, a semicircular closed ring is embedded in the left side of the inner cavity of the regulating valve, and a regulating valve core is rotatably connected to the inner wall of the closed ring, a circular groove is provided inside the regulating valve core, a second flow hole is provided at the rear end of the regulating valve core, and the two ends of the second flow hole are respectively connected to the circular groove and the first flow hole, a flow port connected to the circular groove is provided on the side wall of the regulating valve core, and the opening angle of the flow port is less than or equal to 180°, a knob column is fixedly connected to the front end of the regulating valve core, the knob column is sealed and rotatably connected to the rotating circular hole, and an adjusting knob is fixedly connected to the front end of the knob column, and the left end of the transmission pipe is connected to the inner cavity on the right side of the regulating valve.

[0014] Furthermore, the opening angle of the flow port is 90°.

[0015] Furthermore, a first limit block and a second limit block are provided on the center ring line of the outer surface of the regulating valve core. The first limit block is provided at the edge position of the flow port close to the transmission pipe side, and the second limit block is provided at a position where the first limit block is rotated 90° counterclockwise along the axis of the sealing regulating valve core and is in the same horizontal plane as the other side of the flow port.

[0016] Furthermore, vertical stripes are provided on the adjusting knob.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By opening a suction port on the cutting head, the cutting head can be placed in the flushing fluid and tissue fluid for suction during operation. When the amount of flushing fluid and tissue fluid remaining in the tissue body is small, the side of the cutting head without the suction port can be attached to the body tissue and pressed lightly to make the tissue fluid and cleaning fluid flow to the side with the opening, thereby facilitating more thorough side suction of the flushing fluid and tissue fluid, and avoiding the possibility of the suction port directly sucking the body tissue and causing damage during operation.

[0019] 2. By setting a conveying screw inside the connecting rod, when the cut tissue is mixed with the flushing fluid and tissue fluid inside the body, it enters the suction tube through the suction port and during the flow, the conveying screw is driven by the micro-reduction motor to rotate. During the rotation, the tissue debris is mechanically transmitted and pushed to the connecting head, thereby preventing the risk of body tissue being blocked in the pipeline.

[0020] 3. By setting a partition block in the connector, the flushing connector and the suction connector on the connector are separated, and a transmission pipe is set in the handle and a flushing pipe and a suction pipe are opened in the connecting rod, so that the flushing and suction pipes can operate independently, avoiding the sharing of pipes in the flushing and suction processes and ensuring the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic structural diagram of the present invention;

[0022] FIG2 is a schematic diagram of the internal structure of the present invention;

[0023] FIG3 is a cross-sectional view of the connecting rod of the present invention;

[0024] FIG4 is a schematic diagram of the regulating valve core in the open state of the present invention;

[0025] FIG5 is a schematic diagram of the regulating valve core in the closed state of the present invention;

[0026] FIG6 is a cross-sectional view of the connector of the present invention;

[0027] FIG7 is a right side view of the cutting head of the present invention;

[0028] FIG8 is a top view of the cutting head of the present invention;

[0029] FIG9 is a front view of the cutting head of the present invention.

[0030] The numbers in the accompanying drawings are: 1-handle, 2-control switch, 3-adjusting knob, 301-knob column, 4-adjusting valve, 401-closing ring, 402-adjusting valve core, 403-first limit block, 404-second limit block, 405-circulation port, 5-connecting rod, 501-flushing tube, 502-suction tube, 6-cutting head, 601-suction port, 7-transmission screw, 8-micro reduction motor, 9-connecting head, 901-partition block, 10-flushing joint, 1001-first anti-stripping pattern, 11-suction joint, 1101-second anti-stripping pattern, 12-transmission tube. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] 1 to 9 , a hand-held, pressure-adjustable flushing and suction electrocoagulation cutter is shown, comprising: a connecting rod 5, wherein a flushing channel 501 and a suction channel 502 are provided inside the connecting rod 5 and are spaced apart from each other; a cutting head 6 is provided at the left end of the connecting rod 5, and a suction port 601 connected to the suction channel 502 is provided on the cutting head 6; the head end of the flushing channel 501 passes through the left end of the connecting rod 5; a connector 9 is provided at the right end of the connecting rod 5; the connector 9 is a three-way connector; a mechanical transmission mechanism is provided on the connecting rod 5 for transporting tissue debris cut by the electrocoagulation cutter from the end of the suction channel 502 to the middle channel of the connector 9; a flushing connector 10 and a suction connector 11 are provided at the front and rear channels of the connector 9 respectively; a partition block 901 is provided inside the connector 9 for isolating its front channel from the other two channels; a regulating valve 4 connected to the end of the flushing channel 501 is provided in the middle of the connecting rod 5; a transmission pipe 12 is provided between the regulating valve 4 and the front channel of the connector 9.

[0033] In this embodiment, the cutting head 6 is a flat ellipsoid, and the cutting head 6 and the connecting rod 5 form an angle of 150°; the thinner side of the flat ellipsoidal cutting head 6 is convenient for cutting and electrocoagulating body tissue, while the wide side surfaces on both sides increase the contact surface with the body, thereby avoiding trauma during the suction operation. The cutting head 6 and the connecting rod 5 are set at an angle of 150, so that the operator can better operate the contact between the cutting head 6 and the body tissue in a handheld state.

[0034] The suction port 601 is opened at the center position of the curved surface of the cutting head 6, and the edge of the suction port 601 is set to be rounded and smooth; opening the suction port 601 at the center position of the cutting head 6 can facilitate the suction operation, and when the flushing fluid and tissue fluid are less, the cutting head 6 can be operated to form a low point in the body tissue at a suitable position so that the flushing fluid and tissue fluid can be collected to the suction port 601.

[0035] In this embodiment, a handle 1 is provided on the outer wall of the connecting rod 5, and the handle 1 is covered on the outside of the handle 1. The regulating valve 4, the connecting head 9 and the transmission tube 12 are all covered by the handle 1. The front and rear ports of the connecting head 9 extend to the outside of the handle 1. A control switch 2 is provided on the handle 1, which makes it convenient for medical staff to hold and operate through the handle 1.

[0036] In this embodiment, the mechanical conveying mechanism includes: a conveying screw 7 and a micro-reduction motor 8. A conveying cavity is opened on the right side of the connecting rod 5, and the conveying cavity is connected to the suction channel 502. The conveying screw 7 is arranged in the conveying cavity and cooperates with the conveying cavity. The micro-reduction motor 8 is fixedly installed at the right end of the connecting head 9. The right end of the conveying screw 7 is fixedly connected to the output end of the micro-reduction motor 8. The output end of the micro-reduction motor 8 passes through and rotates to connect the connecting head 9. The micro-reduction motor 8 is provided with a sealing sleeve at the contact position with the connecting head 9; providing a sealing sleeve at the penetration point can ensure that the micro-reduction motor 8 can rotate freely in the process of driving the conveying screw 7 to rotate, and maintain the sealing state of the penetration point to prevent liquid leakage.

[0037] In this embodiment, a first anti-stripping pattern 1001 and a second anti-stripping pattern 1101 are respectively provided on the outer walls of the flushing connector 10 and the suction connector 11. The single-circle texture of the first anti-stripping pattern 1001 is sloped. The first anti-stripping pattern 1001 has a slope on the side facing the liquid inlet of the flushing connector 10 and the back side is perpendicular to the flushing connector 10. The second anti-stripping pattern 1101 has the same shape as the first anti-stripping pattern 1001. By providing the first anti-stripping pattern 1001 and the second anti-stripping pattern 1101 on the flushing connector 10 and the suction connector 11 and setting a slope, the flushing connector 10 and the suction connector 11 can be conveniently inserted into the externally connected pipe, and at the same time, the externally connected pipe can be effectively prevented from falling off when the equipment is working.

[0038] In this embodiment, the regulating valve 4 is hollow cylindrical, and is provided with a first flow hole and a rotating circular hole at both ends. The flow hole is connected to the tail end of the flushing channel 501. A semi-circular closed ring 401 is embedded on the left side of the inner cavity of the regulating valve 4. A regulating valve core 402 is rotatably connected to the inner wall of the closed ring 401. A circular groove is provided inside the regulating valve core 402, and a second flow hole is provided at the rear end of the regulating valve core 402. The two ends of the second flow hole are respectively connected to the circular groove and the first flow hole. A flow port 405 connected to the circular groove is provided on the side wall of the regulating valve core 402. The opening angle of the flow port 405 is 200. The angle is 90°, and the front end of the regulating valve core 402 is fixedly connected to the knob column 301, which is sealed and rotatably connected to the rotating circular hole. The front end of the knob column 301 is fixedly connected to the regulating knob 3, and the regulating knob 3 is provided with vertical stripes, which can enable the operator to adjust and rotate the regulating knob 3 more steadily during use to avoid slipping due to tissue fluid contaminated by the hands; the left end of the transmission tube 12 is connected to the inner cavity on the right side of the regulating valve 4; a first limit block 403 and a second limit block 404 are provided on the central ring line of the outer surface of the regulating valve core 402, and the first limit block 403 is provided on the circulation The port 405 is located at the edge of one side of the transmission pipe 12, and the second limit block 404 is arranged at a position 90 degrees counterclockwise rotated from the first limit block 403 along the axis of the sealing regulating valve core 402 and is at the same horizontal plane as the other side of the flow port 405; during the rotation of the regulating valve core 402, the regulating valve core 402 and the sealing ring 401 are gradually misaligned, and the regulating valve core 402 gradually increases the contact area with the liquid inside the regulating valve 4, thereby realizing stepless regulation of the liquid flow, and then controlling the water output at the end of the flushing channel 501, which is convenient for adjusting flushing as needed; by adjusting the valve core 40 2 is provided with a first limit block 403 and a second limit block 404, which can cooperate with the flow port 405 opened at 90 degrees to control the flow and provide the operator with a control perception. When the first limit block 403 contacts the closed ring 401, the flow port 405 is completely blocked by the closed ring 401, and the flushing flow is 0. When the regulating knob 3 drives the regulating valve core 402 to rotate and the second limit block 404 contacts the closed ring 401, the flow port 405 is completely exposed, the flushing flow is maximum, and the regulating valve core 402 and the regulating knob 3 can only rotate within the set 90° range to avoid excessive operation.

[0039] Working principle: In actual use, connect the flushing connector 10 and the suction connector 11 to the flushing and suction connecting pipes. The first anti-stripping pattern 1001 and the second anti-stripping pattern 1101 will effectively prevent the connecting pipes from falling off. Connect the cutter to the power supply. The user controls the connecting rod 5 by holding the handle 1 and then controls the cutting head 6 to work. During the cutting process, when flushing is required in the body tissue, the user pressurizes the connecting pipe and is in standby state by controlling the switch 2. Turn the adjusting knob 3, which drives the knob column 301 to rotate. Turning the knob drives the regulating valve core 402 to rotate. The regulating valve core 402 rotates during the process. The middle flow port 405 is turned out from the closed loop 401, and the flushing equipment works. The flushing liquid enters the flushing joint 10 and the connector 9 through the flushing equipment pipeline, and then enters the regulating valve 4 through the transmission pipe 12, and enters the flushing channel 501 through the flow port 405. Finally, it is sprayed out from the front end of the flushing channel 501 to flush the position required for flushing. As the regulating valve core 402 driven by the regulating knob 3 rotates, the part of the flow port 405 opened gradually increases, and the flow rate of the flushing liquid also gradually increases. When the second limit block 404 presses against the closed loop 401, the regulating knob 3 will not be able to rotate in the current direction and the opening of the flow port 405 reaches When the flushing is completed, the adjusting knob 3 is turned in the opposite direction, and the adjusting knob 3 drives the regulating valve core 402 to the initial position through the knob column 301, and finally the first limit block 403 touches the closed loop 401, and the flow port 405 is blocked and closed by the closed loop 401, and the flushing is stopped. When it is necessary to remove the flushing fluid and tissue fluid in the body, the cutting head 6 is immersed in the liquid, the suction device and the micro reduction motor 8 are started, and the pipe connected to the suction device is extracted to generate negative pressure. The liquid is extracted from the suction port 601 and immersed in the suction tube 502, and enters the connector 9 through the thread of the transmission screw 7, and finally passes through the connector 9 and the suction connector 1 1 flows into the suction device. At the same time, the micro-reduction motor 8 drives the transmission screw 7 to rotate through the output end. During the rotation, the transmission screw 7 mechanically transmits the body tissue mixed in the suctioned irrigation fluid and tissue fluid, so that it enters the connector 9 under the dual effects of suction negative pressure and mechanical push and is finally sucked by the suction device. When the remaining irrigation fluid and tissue fluid in the body cannot immerse the cutting head 6, the other side of the suction port 601 is attached to the appropriate position of the body tissue and pressed appropriately. The residual irrigation fluid and tissue fluid of the body are collected on the cutting head 6 and are finally sucked and collected by the suction device through the suction port 601.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0041] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent replacement and improvement made by any technician familiar with the profession to the above embodiment without departing from the scope of the technical solution of the present invention and based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A hand-held adjustable pressure irrigation and suction electrocoagulation cutter, characterized in that: include: A connecting rod (5), wherein a flushing channel (501) and a suction channel (502) are arranged at intervals from each other inside the connecting rod (5), a cutting head (6) is arranged at the left end of the connecting rod (5), and a suction port (601) connected to the suction channel (502) is arranged on the cutting head (6), the head end of the flushing channel (501) passes through the left end of the connecting rod (5), and a connecting head (9) is arranged at the right end of the connecting rod (5), and the connecting head (9) is a three-way connection. The connecting rod (5) is provided with a connection for cutting the blood from the electrocoagulation cutter. A mechanical conveying mechanism for conveying tissue debris from the end of the suction channel (502) to a central passage of the connector (9); the front and rear passages of the connector (9) are respectively provided with a flushing joint (10) and a suction joint (11); a partition block (901) is provided inside the connector (9) for isolating the front passage from the other two passages; a regulating valve (4) connected to the end of the flushing channel (501) is provided in the middle of the connecting rod (5); a transmission pipe (12) is provided between the regulating valve (4) and the front passage of the connector (9); The mechanical conveying mechanism comprises: a conveying screw (7) and a micro-reduction motor (8); a conveying cavity is provided on the right side of the connecting rod (5); the conveying cavity is communicated with the suction channel (502); the conveying screw (7) is arranged in the conveying cavity and cooperates with the conveying cavity; the micro-reduction motor (8) is fixedly installed at the right end of the connecting head (9); the right end of the conveying screw (7) is fixedly connected to the output end of the micro-reduction motor (8); the output end of the micro-reduction motor (8) passes through and is rotatably connected to the connecting head (9); and a sealing sleeve is provided at the contact position between the micro-reduction motor (8) and the connecting head (9).

2. A hand-held pressure-adjustable irrigation, suction and electrocoagulation cutter according to claim 1, characterized in that: The cutting head (6) is a flat ellipsoid, and the cutting head (6) and the connecting rod (5) form an angle of 150°.

3. A hand-held pressure-adjustable irrigation, suction and electrocoagulation cutter according to claim 2, characterized in that: The suction port (601) is opened at the center of the side curved surface of the cutting head (6), and the edge of the suction port (601) is configured to be rounded and smooth.

4. A hand-held pressure-adjustable irrigation, suction and electrocoagulation cutter according to claim 1, characterized in that: A handle (1) is provided on the outer wall of the connecting rod (5); the regulating valve (4), the connecting head (9) and the transmission pipe (12) are all covered by the handle (1); the front and rear ports of the connecting head (9) extend outward from the handle (1); and a control switch (2) is provided on the handle (1).

5. The hand-held adjustable pressure irrigation and suction electrocoagulation cutter according to claim 1, characterized in that: The outer walls of the flushing connector (10) and the suction connector (11) are respectively provided with a first anti-stripping pattern (1001) and a second anti-stripping pattern (1101); the single-circle texture of the first anti-stripping pattern (1001) is sloped; the first anti-stripping pattern (1001) has a slope on a side facing the liquid inlet of the flushing connector (10) and a side facing away from the liquid inlet is perpendicular to the flushing connector (10); and the second anti-stripping pattern (1101) has the same shape as the first anti-stripping pattern (1001).

6. The hand-held pressure-adjustable irrigation, suction and electrocoagulation cutter according to claim 1, characterized in that: The regulating valve (4) is in the shape of a hollow cylinder, and is provided with a first flow hole and a rotating circular hole at both ends, respectively. The flow hole is connected to the rear end of the flushing channel (501). A semicircular closed ring (401) is embedded in the left side of the inner cavity of the regulating valve (4). A regulating valve core (402) is rotatably connected to the inner wall of the closed ring (401). A circular groove is provided inside the regulating valve core (402). A second flow hole is provided at the rear end of the regulating valve core (402). The two ends of the second flow hole are connected to the flushing channel (501). The circular groove is connected to the first flow hole, a flow port (405) connected to the circular groove is provided on the side wall of the regulating valve core (402), the opening angle of the flow port (405) is less than or equal to 180 degrees, a knob column (301) is fixedly connected to the front end of the regulating valve core (402), the knob column (301) is sealed and rotatably connected to the rotating circular hole, an adjusting knob (3) is fixedly connected to the front end of the knob column (301), and the left end of the transmission pipe (12) is connected to the right inner cavity of the regulating valve (4).

7. A hand-held pressure-adjustable irrigation, suction and electrocoagulation cutter according to claim 6, characterized in that: The opening angle of the flow port (405) is 90°.

8. The hand-held pressure-adjustable irrigation, suction and electrocoagulation cutter according to claim 7, characterized in that: A first limit block (403) and a second limit block (404) are arranged on the central ring line of the outer surface of the regulating valve core (402), wherein the first limit block (403) is arranged at the edge of the flow port (405) close to the transmission pipe (12), and the second limit block (404) is arranged at a position rotated 90° counterclockwise from the first limit block (403) along the axis of the regulating valve core (402) and is in the same horizontal plane as the other side of the flow port (405).

9. The hand-held pressure-adjustable irrigation, suction and electrocoagulation cutter according to claim 6, characterized in that: The adjusting knob (3) is provided with vertical stripes.

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