CN217853277U - Bipolar adjustable radiofrequency ablation electrode and radiofrequency ablation device - Google Patents
Bipolar adjustable radiofrequency ablation electrode and radiofrequency ablation device Download PDFInfo
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- CN217853277U CN217853277U CN202221378401.7U CN202221378401U CN217853277U CN 217853277 U CN217853277 U CN 217853277U CN 202221378401 U CN202221378401 U CN 202221378401U CN 217853277 U CN217853277 U CN 217853277U
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Abstract
The utility model relates to the field of medical equipment, a bipolar adjustable radiofrequency ablation electrode and radiofrequency ablation device is disclosed, the electric iron comprises a handle, needle tubing and syringe needle, the needle tubing sets up on the handle, the syringe needle sets up on the needle tubing, be provided with the first wire that is used for connecting syringe needle and radio frequency host computer in the needle tubing, it melts the electrode to be provided with a second on the lateral wall of needle tubing at least, it melts the second wire that is provided with to be connected with the radio frequency host computer electricity to melt electrode the connection on the second, be provided with the adjusting part who is used for adjusting relative position between needle tubing and the syringe needle along needle tubing axis direction on the handle. This application has and can melt the relative position between electrode and the syringe needle through adjusting part regulation second to adjust the effect scope that the radio frequency melts electrode needle, the second melts electrode cooperation syringe needle and kills jointly the tumour, makes the radio frequency melt electrode needle single operation and can kill to whole tumour, reaches to improve the radio frequency and melts the electrode and kill difficult operation and waste time and energy's effect to great tumour.
Description
Technical Field
The application relates to the field of medical instruments, in particular to a bipolar adjustable radiofrequency ablation electrode and a radiofrequency ablation device.
Background
The treatment mode of tumor radiofrequency ablation is that an imaging device is used for guiding, such as CT, ultrasound and the like, then one or more thin puncture needles are used for puncturing the tumor and heating the tumor focus, and the tumor cells are killed due to poor heat resistance of the tumor cells compared with normal cells, so that tumor tissues are necrotic and absorbed, and the effects of eliminating the tumor or reducing the tumor load are achieved. The main action principle of the technology is that the electrode end of the radio frequency ablation electrode needle is used for emitting radio frequency waves with medium and high frequencies to excite tissue cells to carry out plasma oscillation, ions mutually collide to generate heat to reach the high temperature of 80-100 ℃, local tumor cells can be effectively and quickly killed, and meanwhile, tissues around the tumor can be coagulated to form a reaction zone, so that blood supply to the tumor cannot be continued, and tumor metastasis can be favorably prevented.
At present, current radiofrequency ablation electrode needle includes the needle tubing, syringe needle and handle, and the needle tubing is installed on the handle, and the syringe needle is installed at the tip that the handle was kept away from to the needle tubing, installs the wire in the needle tubing, and the one end and the syringe needle electricity of wire are connected, and the other end is connected with the radio frequency host computer electricity, when killing the tumour, inserts the syringe needle in the tumour, and the radio frequency host computer passes through the wire and provides medium-high frequency alternating current for the syringe needle for syringe needle department sends the radio frequency wave of medium-high frequency, thereby kills the tumour.
According to the related technology, the tumors are different in size, the action range of radio frequency waves emitted by the radio frequency ablation electrode needle is limited, when the diameter of the tumor is larger than the action range of the radio frequency waves of the radio frequency ablation electrode needle, the radio frequency ablation electrode needle can kill only part of the tumors each time, and all the tumors can be killed only by multiple operations.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the radio frequency ablation electrode is not easy to kill large tumors and wastes time and labor, the application provides the radio frequency ablation electrode with the adjustable double poles and the radio frequency ablation device.
The application provides a bipolar adjustable radiofrequency ablation electrode, adopts following technical scheme:
the utility model provides a bipolar adjustable radiofrequency ablation electrode, includes handle, needle tubing and syringe needle, and the needle tubing setting is on the handle, and the one end of handle is kept away from at the needle tubing to the syringe needle setting, is provided with the first wire that is used for connecting syringe needle (3) and radio frequency host computer in the needle tubing, be provided with a second on the lateral wall of needle tubing at least and melt the electrode, just it is provided with the second wire of being connected with the radio frequency host computer electricity to melt the electrode to connect on the second, be provided with the adjusting part who is used for adjusting relative position between needle tubing and the syringe needle along needle tubing axis direction on the handle.
Through adopting above-mentioned technical scheme, when killing the tumour, the staff is handheld the handle and is inserted the tumour with the syringe needle in, first wire provides the electric current for the syringe needle, make syringe needle department form first ablation electrode, and the second wire provides the electric current for the second ablation electrode on the needle tubing, first ablation electrode kills the tumour with the second ablation electrode jointly, thereby the effect scope of radiofrequency ablation electrode needle has been increased, before killing the tumour, earlier through CT, supersound etc. measure the tumour size, according to the size of tumour size, use adjusting part to adjust needle tubing or syringe needle, thereby adjust the relative position between second ablation electrode and the syringe needle, make the effect scope of first ablation electrode and second ablation electrode can cover whole tumour, thereby make radiofrequency ablation electrode needle single operation can kill all tumours. So set up, through using the second to melt the electrode cooperation first ablation electrode and increased the scope that the radio frequency melts the electrode and kills to the tumour, the relative position between adjustable second of regulating assembly melts electrode and syringe needle simultaneously to adjust the scope of action that the radio frequency melts the electrode needle, make the radio frequency melt electrode needle single operation and can kill to whole tumour, whole operation convenient and fast and labour saving and time saving more.
Preferably, the adjusting assembly comprises a rotating block, a connecting rod and a moving block, the rotating block is rotatably arranged on the handle, the connecting rod is fixedly connected with the rotating block and is located in the handle, a sliding strip hole is formed in the connecting rod along the axis direction of the needle tube, a through hole communicated with the sliding strip hole is formed in one end, close to the needle, of the connecting rod, the moving block is slidably arranged on the connecting rod, the outer side wall of the moving block is in threaded fit with the inner side wall of the handle, a limiting block is arranged in the moving block, the limiting block is slidably arranged in the sliding strip hole along the axis direction of the needle tube, a fixing rod is fixedly arranged in the handle, the end of the fixing rod extends out of the handle and is fixedly connected with the needle, the limiting block is slidably arranged on the fixing rod, the needle tube penetrates through the through hole to extend into the handle and is fixedly connected with the limiting block, the needle tube is slidably arranged on the fixing rod, and the first lead is arranged in the fixing rod.
By adopting the technical scheme, when the needle head is adjusted, the rotating block is rotated, the rotating block drives the connecting rod to rotate in the handle, the connecting rod drives the limiting block in the sliding strip hole to rotate in the rotating process, the limiting block rotates to drive the moving block to rotate, the moving block is in threaded fit with the inner wall of the handle in the rotating process, so that the moving block moves in the axial direction of the needle tube in the rotating process, the moving block moves and drives the limiting block to move in the sliding strip hole, the limiting block moves and drives the needle tube to move in the through hole, and the fixing rod keeps immovable so that the position of the needle head keeps immovable, thereby adjusting the coaction range of the first ablation electrode and the second ablation electrode. So set up, can adjust the needle tubing position fast through rotating the commentaries on classics piece.
Preferably, the fixing rod is arranged in a hollow mode, a cooling component used for reducing the temperature of the needle head and the second ablation electrode is arranged in a cavity of the fixing rod, the cooling component comprises a water inlet pipe and a water outlet pipe, the water inlet pipe is arranged on the inner side wall of the fixing rod and is abutted to the needle head, and the water outlet pipe is arranged in the fixing rod and is communicated with the water inlet pipe.
Through adopting above-mentioned technical scheme, when radiofrequency ablation electrode killed to the tumour, the cooling subassembly was cooled down syringe needle and second ablation electrode, and in the coolant liquid got into the inlet tube, when the coolant liquid flowed to being close to the second and melts electrode department, the heat that the second melts electrode was absorbed to the coolant liquid, when the coolant liquid flowed to being close to syringe needle department the heat of syringe needle, the coolant liquid flowed through the outlet pipe after having absorbed the heat that syringe needle and second melted electrode. So set up, melt the electrode and cool down to syringe needle and second through using the cooling subassembly to make the radio frequency melt electrode needle more stable when the operation.
Preferably, the water inlet pipe is arranged in a thread shape and attached to the inner wall of the fixing rod.
Through adopting above-mentioned technical scheme, the area of contact between inlet tube and the dead lever inner wall has been increased to the inlet tube of screw thread form to the coolant liquid absorbs thermal effect has been improved.
Preferably, the second ablation electrode is arranged in a ring shape and arranged on the outer side wall of the needle tube.
By adopting the technical scheme, the annular second ablation electrode enables the range of radio frequency waves emitted by the second ablation electrode to be wider, so that the effect of killing tumors by the second ablation electrode is better.
Preferably, the second conducting wire is arranged along the outer side wall of the needle tube or penetrates through the handle to be electrically connected with the first conducting wire.
By adopting the technical scheme, when the second lead passes through the handle and is electrically connected with the first lead, the first lead provides current for the second lead, at the moment, the current at the first ablation electrode and the second ablation electrode is provided by the first lead, so that the action ranges of the first ablation electrode and the second ablation electrode are the same, when the second lead is not electrically connected with the first lead, the first lead and the second lead are respectively and correspondingly connected with the two radio frequency hosts, at the moment, the current at the first ablation electrode and the second ablation electrode can be independently adjusted through the two radio frequency hosts, so that the action ranges of the first ablation electrode and the second ablation electrode are different, and the multifunctional electric-therapy device is suitable for tumors with different sizes.
Preferably, a plurality of second ablation electrodes are arranged at intervals, the second lead is configured as one second ablation electrode and connected in series with the second ablation electrodes, or the second lead is configured as a plurality of second ablation electrodes and arranged in one-to-one correspondence with the second ablation electrodes, and the second leads are electrically connected with different second ablation electrodes and the radio frequency host respectively.
By adopting the technical scheme, when a plurality of second ablation electrodes are used for killing tumors and one second lead is used, the second lead simultaneously provides the same electric power for the plurality of second ablation electrodes, so that the action ranges of the plurality of second ablation electrodes are the same, the tumor killing effect of the plurality of second ablation electrodes is increased, when the plurality of second ablation electrodes are used for killing tumors and the plurality of second leads are used, the plurality of second leads are respectively and correspondingly connected with the plurality of radio frequency hosts, the plurality of second leads are in one-to-one correspondence with the plurality of second ablation electrodes and are electrically connected with the plurality of second ablation electrodes, at the moment, the current sizes of the plurality of second ablation electrodes can be independently adjusted through the plurality of radio frequency hosts, the action ranges of the plurality of second ablation electrodes are different, and the ablation is suitable for tumors with different sizes.
Preferably, the second ablation electrode is a metal conductive layer formed by electroplating, and the second wire is a metal wire formed by electroplating.
Through adopting above-mentioned technical scheme, the second that electroplates and forms melts electrode and second wire thickness minimum for when the handheld handle of staff inserted the syringe needle in the tumour, the second that electroplates and forms melts electrode and second wire and is difficult for scraping and touch human tissue and tumour tissue, thereby is convenient for insert the syringe needle in the tumour.
The application provides a radio frequency ablation device adopts following technical scheme:
a radio frequency ablation device comprises a radio frequency host and a bipolar adjustable radio frequency ablation electrode, wherein a first lead and a second lead of the bipolar adjustable radio frequency ablation electrode are electrically connected with the radio frequency host.
By adopting the technical scheme, the radio frequency host machine provides electric power for the radio frequency ablation electrode with double-stage adjustability through the first lead and the second lead, so that the radio frequency ablation electrode kills tumors.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by adopting the second ablation electrode and the adjusting assembly, the range of the radiofrequency ablation electrode for killing the tumor is enlarged by the second ablation electrode matching with the first ablation electrode, and meanwhile, the adjusting assembly can adjust the relative position between the second ablation electrode and the needle head, so that the action range of the radiofrequency ablation electrode needle is adjusted, all tumors can be killed by the radiofrequency ablation electrode needle in a single operation, and the whole operation is more convenient, quicker, time-saving and labor-saving;
2. by adopting the cooling assembly, the needle head and the second ablation electrode are cooled by the cooling assembly, so that the radio frequency ablation electrode needle is more stable in operation;
3. through adopting the screw thread form inlet tube, the area of contact between inlet tube and the dead lever inner wall has been increased to the inlet tube of screw thread form to the cooling effect of cooling subassembly has been improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a bipolar adjustable RF ablation electrode in accordance with example 1 of the present application;
FIG. 2 is a partial sectional view of the structure of the adjusting assembly shown in embodiment 1 of the present application;
FIG. 3 is a cross-sectional view of the handle in embodiment 1 of the present application;
FIG. 4 is an enlarged view of A in FIG. 3 of the present application;
FIG. 5 is an exploded view of a part of the structure of an adjusting assembly for highlighting the adjusting assembly in embodiment 1 of the present application;
FIG. 6 is a partial sectional view of the structure of the cooling module in embodiment 1 of the present application;
fig. 7 is a schematic view of the overall structure of the bipolar adjustable rf ablation electrode in example 2 of the present application.
Description of reference numerals: 1. a handle; 2. a needle tube; 3. a needle head; 4. a first conductive line; 5. a second ablation electrode; 6. an adjustment assembly; 61. rotating the block; 62. a connecting rod; 63. a moving block; 7. fixing the rod; 8. a sliding bar hole; 9. a through hole; 10. a limiting block; 11. a cooling assembly; 111. a water inlet pipe; 112. a water outlet pipe; 12. connecting a lead; 13. a second conductive line; 14. and (5) fixing blocks.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
Example 1:
the embodiment of the application discloses a bipolar adjustable radiofrequency ablation electrode.
Referring to fig. 1 and 2, a bipolar adjustable radiofrequency ablation electrode includes handle 1, needle tubing 2 and syringe needle 3, and needle tubing 2 installs in the middle part position department of 1 one end of handle, and needle tubing 2 and the coaxial setting of handle 1, and the one end fixed mounting that needle tubing 2 was kept away from to 1 inside wall of handle has fixed block 14, and the tip fixed mounting of fixed block 14 has dead lever 7, and dead lever 7 passes needle tubing 2 and extends to the needle tubing 2 outside, and the tip that handle 1 was kept away from to syringe needle 3 fixed mounting is kept away from at dead lever 7. The fixing rod 7 is arranged in a hollow mode, a first lead 4 is installed in a cavity of the fixing rod 7, one end of the first lead 4 is electrically connected with the needle head 3, and the other end of the first lead 4 penetrates through the fixing rod 7 and the handle 1 and is electrically connected with an external radio frequency host. In the present application, the needle tube 2 may be an insulated needle tube 2 made of a PE material harmless to the human body, and the fixing rod 7 may be an insulated fixing rod 7 made of a PE material harmless to the human body. When killing the tumour, the staff holds handle 1 and inserts syringe needle 3 in the tumour tissue, and the radio frequency host computer provides medium and high frequency alternating current for syringe needle 3 through first wire 4, makes syringe needle 3 department form first ablation electrode, and first ablation electrode sends the radio frequency wave of medium and high frequency to kill the tumour.
Referring to fig. 1, an annular second ablation electrode 5 is installed at one end of the outer side wall of the needle tube 2 close to the needle head 3, a second lead 13 is installed on the outer side wall of the needle tube 2 along the axis direction of the needle tube, one end of the second lead 13 is electrically connected with the second ablation electrode 5, and the other end of the second lead 13 is electrically connected with the first lead 4. An adjusting component 6 is arranged in the handle 1, and the adjusting component 6 adjusts the position of the needle tube 2 along the axial direction of a fixing rod 7. When killing the tumour, first wire 4 provides the electric current for second ablation electrode 5 through second wire 13, first ablation electrode and second ablation electrode 5 kill the tumour jointly, thereby the effect scope of radiofrequency ablation electrode needle has been increased, and according to the size of tumour size, use adjusting part 6 to adjust the position of needle tubing 2, thereby adjust the effect scope of radiofrequency ablation electrode needle, make radiofrequency ablation electrode needle single operation can kill all tumours, the whole operation is convenient and fast more and labour saving and time saving.
Referring to fig. 2 and 5, adjusting part 6 includes commentaries on classics piece 61, connecting rod 62 and movable block 63, changes the coaxial rotation of piece 61 and installs the tip that is close to syringe needle 3 at handle 1, and connecting rod 62 coaxial rotation is installed inside handle 1, and connecting rod 62 and commentaries on classics piece 61 fixed connection, the inside cavity of connecting rod 62 and the both ends opening setting along self axis direction, and connecting rod 62 has all seted up slip strip hole 8 on the relative both sides wall along self diameter direction. The moving block 63 is slidably sleeved on the connecting rod 62 along the axial direction of the connecting rod 62, and the outer side wall of the moving block 63 is in threaded fit with the inner side wall of the handle 1. A limiting block 10 is fixedly installed in the moving block 63, and the limiting block 10 is slidably installed in the two sliding strip holes 8 in a matching manner along the moving direction of the moving block 63. The rotating block 61 is rotated, the rotating block 61 drives the connecting rod 62 to rotate, the connecting rod 62 drives the sliding strip hole 8 to rotate, the sliding strip hole 8 drives the moving block 63 to rotate through the limiting block 10, and the moving block 63 is in threaded fit with the inner side wall of the handle 1 in the rotating process, so that the moving block 63 moves along the axis direction of the connecting rod 62.
Referring to fig. 4 and 5, a through hole 9 is formed in the middle of the rotating block 61 along the axial direction of the fixing rod 7, the fixing rod 7 is located in the through hole 9, the needle tube 2 is slidably sleeved on the fixing rod 7, and the needle tube 2 penetrates through the through hole 9 and is fixedly connected with the limiting block 10. The movable block 63 drives the limiting block 10 to move in the two sliding bar holes 8 when moving along the axis direction of the connecting rod 62, meanwhile, the limiting block 10 moves on the fixing rod 7, and the limiting block 10 moves and simultaneously drives the needle tube 2 to move in the through hole 9, so that the second ablation electrode 5 is driven to move, and the coaction range of the first ablation electrode and the second ablation electrode 5 is adjusted.
Referring to fig. 3 and 4, one end of the second wire 13 is electrically connected to the second ablation electrode 5, the other end of the second wire 13 extends into the handle 1 and abuts against the limiting block 10, the connecting wire 12 is installed in the limiting block 10, one end of the connecting wire 12 is electrically connected to the abutting part of the second wire 13 and the limiting block 10, and the other end of the connecting wire 12 is electrically connected to the first wire 4. The radio frequency host machine provides current for the connecting wire 12 through the first wire 4, the connecting wire 12 provides current for the second wire 13, and the second wire 13 transmits the current to the second ablation electrode 5, so that the second ablation electrode 5 kills tumors, at the moment, the currents of the first ablation electrode and the second ablation electrode are provided by the first wire, and the action ranges of the first ablation electrode and the second ablation electrode 5 are the same. The connecting wire 12 can also not be electrically connected with the first wire 4, at this time, the connecting wire 12 penetrates through the handle 1 and is directly electrically connected with the radio frequency host, the first wire 3 and the second wire 13 are respectively and correspondingly connected with the two radio frequency hosts, and at this time, the current magnitude of the first ablation electrode and the current magnitude of the second ablation electrode 5 can be independently adjusted through the two radio frequency hosts, so that the action ranges of the first ablation electrode and the second ablation electrode 5 are different, and the device is suitable for tumors with different sizes.
Referring to fig. 6, a cooling assembly 11 is installed in the fixing rod 7, the cooling assembly 11 includes a water inlet pipe 111 and a water outlet pipe 112, one ends of the water inlet pipe 111 and the water outlet pipe 112 are located in the fixing rod 7 and are communicated with each other, the other ends of the water inlet pipe 111 and the water outlet pipe 112 penetrate through the end portion of the handle 1 far away from the needle 3 and are communicated with external water supply equipment, the portion of the water inlet pipe 111 located in the fixing rod 7 is threaded and is attached to the inner side wall of the fixing rod 7, and the end portion of the water inlet pipe 111 abuts against the needle 3. When the radiofrequency ablation electrode kills the tumor, the external water supply equipment injects the cooling liquid into the water inlet pipe 111, when the cooling liquid flows to a position close to the second ablation electrode 5, the cooling liquid absorbs the heat of the second ablation electrode 5, when the cooling liquid flows to a position close to the needle head 3, the heat of the needle head 3 is absorbed, and the cooling liquid reflows back to the water supply equipment through the water outlet pipe 112 after absorbing the heat of the needle head 3 and the second ablation electrode 5. Through using cooling subassembly 11 to cool down syringe needle 3 and second ablation electrode 5 to make the radio frequency ablation electrode needle more stable when the function, and inlet tube 111 is the thread form and has increased the area of contact between inlet tube 111 and the dead lever 7, thereby increase cooling subassembly 11's cooling effect.
The implementation principle of the embodiment 1 of the application is as follows: when killing the tumour, earlier through CT, the supersound etc. is measured the tumour size, according to the size of tumour size, use adjusting part 6 to adjust needle tubing 2 position, rotate commentaries on classics piece 61, commentaries on classics piece 61 drives connecting rod 62 and rotates, connecting rod 62 drives slip strip hole 8 and rotates, slip strip hole 8 drives movable block 63 through stopper 10 and rotates, movable block 63 is in pivoted in-process and 1 inside wall spiral shell cooperation of handle, thereby make movable block 63 move along the axis direction of connecting rod 62, movable block 63 drives needle tubing 2 through stopper 10 and moves, thereby adjust the position of second ablation electrode 5, insert syringe needle 3 in the tumour tissue after the regulation, the radio frequency host computer provides medium and high frequency alternating current for syringe needle 3 through first wire 4, make syringe needle 3 department form first ablation electrode, first wire 4 provides medium and high frequency alternating current for second ablation electrode 5 through connecting wire 12 and second wire 13, first ablation electrode and second ablation electrode 5 send medium and high frequency radio frequency wave jointly, thereby kill the tumour. Kill the tumour jointly through first ablation electrode and second ablation electrode 5 to increased the application range of radiofrequency ablation electrode needle, and according to the size of tumour size, used adjusting part 6 to adjust the position of needle tubing 2, thereby adjusted the application range of radiofrequency ablation electrode needle, made radiofrequency ablation electrode needle single operation can kill to whole tumour, whole operation convenient and fast and labour saving and time saving more.
Example 2:
referring to fig. 7, the embodiment of the present application differs from embodiment 1 in that three second ablation electrodes 5 are installed, three second ablation electrodes 5 are installed on the outer side wall of the needle tube 2 at equal intervals at one end close to the needle 3, and a second wire 13 is connected in series with the three second ablation electrodes 5 and is electrically connected with the three second ablation electrodes 5. When the tumor is killed, the three second ablation electrodes 5 kill the tumor together, and the second lead 13 provides the same electric power for the three second ablation electrodes 5, so that the three second ablation electrodes 5 emit radio frequency waves with the same frequency, and the tumor killing effect of the three second ablation electrodes 5 is increased. The second wires 13 can be further installed to be three, at the moment, the three second wires 13 are respectively in one-to-one correspondence with the three second ablation electrodes 5 and are electrically connected with the radio frequency host computer independently, the other ends of the three second wires 13 are all electrically connected with the radio frequency host computer independently, and at the moment, the current of the plurality of second ablation electrodes 5 can be adjusted independently through the plurality of radio frequency host computers, so that the action ranges of the plurality of second ablation electrodes 5 are different, and the multifunctional ablation electrode is suitable for tumors with different sizes.
The action range of the first ablation electrode and the second ablation electrode 5 has three conditions: when the first lead 4 is electrically connected with the second lead 13 and the number of the second leads 13 is one or three, the action ranges of the three second ablation electrodes 5 are the same as that of the first ablation electrode; when the first lead 4 is not connected with the second lead 13 and the second lead 13 is one, the action ranges of the three second ablation electrodes 5 are the same, and the action ranges of the second ablation electrodes 5 are different from that of the first ablation electrode; when the first lead 4 is not connected with the second lead 13 and the number of the second leads 13 is three, the action ranges of the three second ablation electrodes 5 are different, and the action ranges of the second ablation electrodes 5 are different from that of the first ablation electrodes. Therefore, the first ablation electrode and the three second ablation electrodes 5 have multiple different action ranges, so that the radio frequency ablation electrode needle is suitable for tumors with different sizes.
The second ablation electrode 5 is an annular metal conducting layer made of a conductive metal material and plated on the outer side wall of the needle tube 2, the second lead 13 is connected with the second ablation electrode 5, the second lead 13 is a metal lead made of a conductive metal material and plated on the outer side wall of the needle tube 2, and the metal lead is electrically connected with the annular metal conducting layer. The thickness of the second ablation electrode 5 and the second lead 13 formed by electroplating is extremely small, so that when a worker holds the handle 1 to insert the needle head 3 into a tumor, the second ablation electrode 5 and the second lead 13 formed by electroplating are not easy to scrape human tissues and tumor tissues, and the needle head 3 can be conveniently inserted into the tumor.
The implementation principle of embodiment 2 of the present application is as follows: when the tumor is killed, the first ablation electrode and the three second ablation electrodes 5 have multiple different action ranges through multiple connection conditions of the first lead 4 and the second lead 13, so that the radio frequency ablation electrode needle is suitable for tumors with different sizes.
Example 3:
the embodiment of the application discloses a radio frequency ablation device.
Referring to fig. 1 and 7, the radiofrequency ablation device comprises a radiofrequency main machine and a bipolar adjustable radiofrequency ablation electrode, wherein a first lead 4 and a second lead 13 of the bipolar adjustable radiofrequency ablation electrode are both electrically connected with the radiofrequency main machine. The radio frequency host machine provides power for the radio frequency ablation electrode with double-stage adjustment through the first lead 4 and the second lead 13, so that the radio frequency ablation electrode kills tumors.
The implementation principle of embodiment 3 of the application is as follows: the radio frequency host machine provides power for the radio frequency ablation electrode with double-stage adjustment through the first lead 4 and the second lead 13, so that the radio frequency ablation electrode kills tumors.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a bipolar adjustable radiofrequency ablation electrode, includes handle (1), needle tubing (2) and syringe needle (3), and needle tubing (2) set up on handle (1), and syringe needle (3) set up the one end of keeping away from handle (1) in needle tubing (2), are provided with first wire (4) that are used for connecting syringe needle (3) and radio frequency host computer in needle tubing (2), its characterized in that: the outer side wall of the needle tube (2) is at least provided with a second ablation electrode (5), the second ablation electrode (5) is connected with a second lead (13) electrically connected with the radio frequency host, and the handle (1) is provided with an adjusting component (6) used for adjusting the relative position between the needle tube (2) and the needle head (3) along the axis direction of the needle tube (2).
2. The bipolar adjustable radiofrequency ablation electrode of claim 1, wherein: the adjusting component (6) comprises a rotating block (61), a connecting rod (62) and a moving block (63), the rotating block (61) is rotationally arranged on the handle (1), the connecting rod (62) is fixedly connected with the rotating block (61) and is positioned in the handle (1), a sliding strip hole (8) is arranged in the connecting rod (62) along the axial direction of the needle tube (2), a through hole (9) is arranged in the rotating block (61), the moving block (63) is sleeved on the connecting rod (62) in a sliding way, and the outer side wall of the moving block (63) is in threaded fit with the inner side wall of the handle (1), a limiting block (10) is arranged in the moving block (63), the limiting block (10) is arranged in the sliding strip hole (8) in a sliding way along the axial direction of the needle tube (2), a fixed rod (7) is fixedly arranged in the handle (1), the end part of the fixed rod (7) extends out of the handle (1) and is fixedly connected with the needle head (3), the limiting block (10) is arranged on the fixed rod (7) in a sliding way, the needle tube (2) passes through the through hole (9) to extend into the handle (1) and is fixedly connected with the limiting block (10), the needle tube (2) is sleeved on the fixing rod (7) in a sliding mode, and the first conducting wire (4) is arranged in the fixing rod (7).
3. A bipolar adjustable radiofrequency ablation electrode as in claim 2, wherein: dead lever (7) cavity sets up, be provided with in the cavity of dead lever (7) and be used for reducing cooling subassembly (11) of syringe needle (3) and second ablation electrode (5) temperature, cooling subassembly (11) are including inlet tube (111) and outlet pipe (112), inlet tube (111) set up on the inside wall of dead lever (7) and with syringe needle (3) looks butt, outlet pipe (112) set up in dead lever (7) and are linked together with inlet tube (111).
4. A bipolar adjustable radiofrequency ablation electrode as in claim 3, wherein: the water inlet pipe (111) is arranged in a thread shape and attached to the inner wall of the fixing rod (7).
5. A bipolar adjustable rf ablation electrode according to claim 1, wherein: the second ablation electrode (5) is arranged in a ring shape and is arranged on the outer side wall of the needle tube (2).
6. The bipolar adjustable radiofrequency ablation electrode of claim 1, wherein: the second lead (13) is arranged along the outer side wall of the needle tube (2) or penetrates through the handle (1) to be electrically connected with the first lead (4).
7. A bipolar adjustable rf ablation electrode according to claim 6, wherein: the second ablation electrodes (5) are arranged at intervals, the second lead (13) is configured to be one and connected with the plurality of second ablation electrodes (5) in series, or the second lead (13) is configured to be a plurality of and arranged in one-to-one correspondence with the plurality of second ablation electrodes (5), and the plurality of second leads (13) are respectively and electrically connected with different second ablation electrodes (5) and a radio frequency host.
8. A bipolar adjustable rf ablation electrode according to claim 6, wherein:
the second ablation electrode (5) is a metal conducting layer formed by electroplating, and the second lead (13) is a metal lead formed by electroplating.
9. A radio frequency ablation device, characterized by: comprising a radiofrequency host and a bipolar adjustable radiofrequency ablation electrode according to any one of claims 1 to 8, wherein the first lead (4) and the second lead (13) of the bipolar adjustable radiofrequency ablation electrode are electrically connected with the radiofrequency host.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221378401.7U CN217853277U (en) | 2022-05-25 | 2022-05-25 | Bipolar adjustable radiofrequency ablation electrode and radiofrequency ablation device |
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| CN202221378401.7U CN217853277U (en) | 2022-05-25 | 2022-05-25 | Bipolar adjustable radiofrequency ablation electrode and radiofrequency ablation device |
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| CN217853277U true CN217853277U (en) | 2022-11-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116509535A (en) * | 2023-03-14 | 2023-08-01 | 武汉金柏威光电技术有限公司 | Medical high-frequency electrotome |
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2022
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116509535A (en) * | 2023-03-14 | 2023-08-01 | 武汉金柏威光电技术有限公司 | Medical high-frequency electrotome |
| CN116509535B (en) * | 2023-03-14 | 2024-01-23 | 武汉金柏威光电技术有限公司 | Medical high-frequency electrotome |
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