Pulse electric field ablation system

Abstract

The invention belongs to the field of pulsed electric field ablation systems, and particularly relates to a pulsed electric field ablation system which comprises a device body. The outer side of the device body is connected with a high-voltage tail line and an ablation needle through wires, a rocker arm is arranged at the top end of the device body, an E-shaped plug-in embedded high-voltage output module is arranged in the device body, one end of the rocker arm is fixedly connected with a displayer, and an assembling mechanism is arranged between the device body and the rocker arm. And the high-voltage part integrally adopts a three-dimensional hierarchical letter E-shaped module plugging and embedding design, and adopts a semi-shielding and isolation design between layers, so that the interference to external electronic equipment is reduced. If part of the display function is damaged, the display is overhauled or replaced by quickly dismounting the replaced assembly.

Description

Technical Field

[0001] The invention relates to the field of pulse electric field ablation systems, in particular to a pulse electric field ablation system. Background Art

[0002] High-voltage pulse ablation equipment will inevitably generate electromagnetic interference. For example, in the actual application of pulsed electric field ablation, in order to meet clinical needs, it is often necessary to generate a nanosecond pulse of several thousand volts or even tens of thousands of volts within a dozen nanoseconds to tens of nanoseconds. In other words, the pulse voltage needs to be changed from 0 volts to tens of thousands of volts in a dozen nanoseconds to tens of nanoseconds, and the corresponding pulse current can be changed from 0 amperes to 100 to 200 amperes. In addition, in actual treatment applications, multiple pulses are often required to be released intensively within an extreme period of time, such as releasing dozens to hundreds of pulses within a few milliseconds. Therefore, multiple pulses will also form a superposition effect of electromagnetic energy in space and lines.

[0003] The high-frequency and high-voltage pulse energy generated by the pulse field atrial fibrillation ablation device will generate strong electromagnetic interference, part of which affects the surrounding systems and equipment through radiation, and part of which affects the surrounding system equipment through conduction. High-power pulses can cause unstable operation of control systems dominated by low-voltage control circuits such as FPGA, MCU, communication interface and video interface, or cause unexpected situations such as black screen of external display devices and crash of external PCs, thereby reducing the reliability of the system.

[0004] On the one hand, in order to ensure the safe and stable output of high-frequency and high-voltage pulse energy generated by the pulsed field atrial fibrillation ablation device, the interference to the low-voltage control system should be reduced as much as possible when the high-frequency and high-voltage pulses are generated. On the other hand, during treatment, since the pulsed field atrial fibrillation ablation device is usually used together with a display, once a display failure occurs, the display needs to be replaced in time, and other auxiliary equipment around it should be disassembled and installed as quickly as possible to ensure the normal operation of the display.

[0005] Therefore, in order to solve the above problems, the present invention proposes a pulse electric field ablation system. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, the existing devices do not solve the problem of electromagnetic interference, nor do they solve the problem of easy disassembly and replacement, which leads to the high-frequency, high-voltage, high-current, high-density high-energy pulses / pulse trains required clinically causing strong electromagnetic radiation interference inside the device, and the problem that it is difficult to replace when the external display device is black. The present invention proposes a pulsed electric field ablation system to solve the above problems.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a pulsed electric field ablation system described in the present invention includes a device body; the device body includes a port for electrically connecting a high-voltage tail line and an ablation needle through a wire, and a port for electrically connecting a high-voltage generator and a controller through a wire, the controller is used to control the startup, shutdown and output power of the device body, a rocker arm is provided at the top of the device body, and an E-shaped plug-in embedded high-voltage output module is provided inside; the rocker arm is fixedly connected to a display, and an assembly mechanism is provided between the device body and the rocker arm.

[0008] The letter E-type plug-in embedded high-voltage output module includes a PCB backplane, a layer board and a plug; the PCB backplane is vertically arranged in the longitudinal direction of the letter E, and the layer board is arranged layer by layer by a high-voltage generator and a plurality of single-layer high-voltage output modules in the horizontal direction of the letter E, n is the number of layers, the bottom layer n=0, which is a high-voltage generator, and each of the remaining layers n=1, 2, 3... are single-layer high-voltage output modules; wherein the plug includes a high-voltage pulse terminal A connecting the high-voltage wiring and each layer board n and B n , connect the high voltage return line and the annular cylindrical terminal C of each layer n , and the snap-on terminal D for connecting the high voltage tail wire and the ablation needle n The left and right outermost sides of the PCB backplane are high-voltage wiring; each single-layer high-voltage output module is equipped with a switch and a filter, and the high-voltage wiring is processed by the switch and the filter to become a high-voltage return line; the high-voltage return line is connected to the plug C n , back to the inside of the middle of the PCB backplane, and then through D n Enter the high voltage tail wire and finally enter the ablation needle.

[0009] The assembling mechanism includes a first fixed block, the first fixed block is arranged at the other end of the rocker arm, and the top of the first fixed block is fixedly connected to the rocker arm, a second fixed block is arranged below the first fixed block, the bottom end of the second fixed block is fixedly connected to the device main body, the left end of the second fixed block is fixedly connected to the third fixed block, the middle position inside the third fixed block is fixedly connected to the fourth fixed block, the front and rear ends inside the third fixed block are also fixedly connected to one end of the first guide rod, the other end of the first guide rod is fixedly connected to the fourth fixed block, the outer side of the first guide rod is slidably connected to a moving block, the outer side of the first guide rod is sleeved with a first return spring, one end of the first return spring is fixedly connected to the moving block, and the other end of the first return spring is fixedly connected to the third fixed block.

[0010] The single-layer high-voltage output module is a composite superimposed interlayer. According to the composite number of the interlayers, the single-layer high-voltage output module is divided into single-layer high-voltage output module one and single-layer high-voltage output module two; the single-layer high-voltage output module one adopts a five-plane interlayer design of "high-voltage layer, low-voltage layer, high-voltage layer, insulating layer, and shielding layer", and the single-layer high-voltage output module two adopts a three-plane interlayer design of "high-voltage layer, insulating layer, and shielding layer"; the high-voltage area and low-voltage area on each single-layer high-voltage output module adopt an isolation design, including physical isolation and device isolation.

[0011] The left end of the moving block is fixedly connected to a first fixed seat, one end of a push rod is rotatably connected to the outer side of the first fixed seat, the other end of the push rod is rotatably connected to a second fixed seat, the left end of the second fixed seat is fixedly connected to a pressing plate, the right end of the pressing plate is fixedly connected to a fifth fixed block, the right end of the fifth fixed block is fixedly connected to a second return spring, and the right end of the second return spring is fixedly connected to a fourth fixed block.

[0012] One end of the moving block is fixedly connected to a moving bracket, and the moving bracket is slidably connected to a third fixed block. Two groups of first plug rods are sleeved inside the moving bracket, and the moving bracket is slidably connected to the first plug rod, one end of the first plug rod is fixedly connected to a sixth fixed block, and a third return spring is sleeved on the outer side of the first plug rod near one end of the sixth fixed block, one end of the third return spring is fixedly connected to the moving bracket, and the other end of the third return spring is fixedly connected to the sixth fixed block.

[0013] The front and rear ends of the second fixed block are also fixedly connected to the seventh fixed block, and the front and rear ends of the first fixed block are also fixedly connected to the first plug block, the first plug block is inserted inside the seventh fixed block, and the first plug block is slidably connected to the seventh fixed block, the other end of the first plug rod is inserted inside the first plug block, and the first plug rod is slidably connected to the first plug block. The outer side of the mobile bracket is sleeved with a second guide rod, and the mobile bracket is slidably connected to the second guide rod, and one end of the second guide rod is fixedly connected to the second fixed block. The outer side of the first plug rod is sleeved with a sleeve block, and the first plug rod is slidably connected to the sleeve block, and the bottom end of the sleeve block is fixedly connected to the device body.

[0014] The front and rear ends of the bottom end of the first fixed block are also fixedly connected with a second plug rod, the bottom end of the second plug rod is inserted into the second fixed block, and the second plug rod is slidably connected with the second fixed block.

[0015] The right end of the second fixed block is fixedly connected to the third fixed seat, the outer side of the third fixed seat is rotatably connected to the rotating block, one end of the second plug block is inserted into the rotating block, and the rotating block is slidably connected to the second plug block. The front and rear ends of the left end of the rotating block are also fixedly connected to the left end of the fourth return spring, and the right end of the fourth return spring is fixedly connected to one end of the second plug block. The other end of the second plug block is inserted into the eighth fixed block, and the second plug block is slidably connected to the eighth fixed block, and the left end of the eighth fixed block is fixedly connected to the first fixed block.

[0016] The high voltage pulse terminal A n It is the positive pole of the internal high-voltage pulse path, high-voltage pulse terminal B n It is the negative pole of the internal high-voltage pulse path, delivering high-voltage pulses to each layer; the annular cylindrical terminal C n To deliver to the snap-on terminal D n High voltage pulse channel; snap-on terminal D n The pulses are input into the ablation needle via a high voltage pigtail.

[0017] The top layer of the single-layer high-voltage output module 1 is the high-voltage loop output path, the middle layer 1 is the middle low-voltage control system, the middle layer 2 is the high-voltage wiring transmission path, the middle layer 3 is the reinforced insulation bakelite plane, and the bottom layer is the aluminum alloy tray plane. The top layer and the middle layer 1, the middle layer 2 and the middle layer 3 all leave 10 to 15 mm of air isolation space, the middle layer 2 and the middle layer 3 leave more than 10 mm of air isolation space, and the middle layer 3 is in contact and fixed with the bottom layer.

[0018] The top layer of the single-layer high-voltage output module 2 is the high-voltage return line output path, the middle layer is the reinforced insulation bakelite plane, and the bottom layer is the aluminum alloy tray plane. A 10-15mm air isolation space is reserved between the top layer and the middle layer, and the middle layer is in contact and fixed with the bottom layer.

[0019] The present invention is beneficial in that:

[0020] 1. The present invention adopts the letter E-shaped plug-in embedded design to reduce the internal interference of the equipment, and adopts isolation, shielding and filtering to reduce the external interference. The modular design is simple and convenient to install, plug and play, and the number of installed layers can be adjusted according to different output channel requirements to adapt to different clinical needs. It can not only ensure the flexible switching of multi-channel electrodes, but also realize the routing of high-voltage pulses on the PCB board, thereby minimizing electromagnetic radiation interference as much as possible;

[0021] 2. The present invention, through the structural design of the assembly mechanism and the multi-directional rotation of the rocker arm, can not only allow the display to work in the best position to avoid electromagnetic radiation, but also realize the function of easy disassembly and installation, thereby solving the problem that the existing device does not have components for the display that can be easily removed and replaced. When encountering a black screen due to electromagnetic radiation, the display needs to be repaired or replaced, but the existing device is not provided with components that can be easily replaced, resulting in a long waiting time for maintenance during treatment and difficult operation. The convenience of disassembly is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0024] Figure 2 It is a schematic diagram of the plug structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the letter E-shaped plug-in embedded high-voltage output module of the present invention;

[0026] Figure 4 This is a schematic diagram of a composite stacked sandwich of a single-layer high-voltage output module of the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 6 It is a schematic diagram of a first top cross-sectional structure of the present invention;

[0029] Figure 7 is a schematic structural diagram of a second top cross-section of the present invention;

[0030] Figure 8 It is a schematic structural diagram of a first side cross-section of the present invention;

[0031] Fig. 9 is a schematic structural diagram of a second side cross-section of the present invention;

[0032] Fig.10 is a schematic structural diagram of a third side cross-section of the present invention;

[0033] Fig.11 For the present invention Figure 6 A structural diagram of the enlarged schematic diagram at A in the middle;

[0034] Fig.12 For the present invention Figure 6 The structural diagram of the enlarged schematic diagram at B in the middle;

[0035] Fig.13 For the present invention Figure 7 The structural diagram of the enlarged schematic diagram at C in the middle;

[0036] Fig.14 For the present invention Figure 7 The structural diagram of the enlarged schematic diagram at D in the middle;

[0037] Fig.15 For the present invention Figure 8 The structural diagram of the enlarged schematic diagram at E in the middle;

[0038] Fig.16 For the present invention Figure 8 The structural diagram of the enlarged schematic diagram at F in the middle;

[0039] Fig.17 For the present invention Fig. 9 The structural diagram of the enlarged schematic diagram at G in the middle;

[0040] Fig.18 For the present invention Fig.10 Schematic diagram of the structure of the enlarged schematic diagram at H in the middle.

[0041] In the figure: 1. device body; 2. port 2; 3. port 3; 4. rocker arm; 5. display; 10. first fixed block; 11. second fixed block; 12. third fixed block; 13. fourth fixed block; 14. first guide rod; 15. moving block; 16. first return spring; 17. first fixed seat; 18. push rod; 19. second fixed seat; 20. pressing plate; 21. fifth fixed block; 22. second return spring; 23. moving bracket; 24. first plug rod; 25. sixth fixed block; 26. third return spring; 27. sleeve block; 28. first plug block; 29. ​​seventh fixed block; 30. second guide rod; 31. second plug rod; 32. third fixed seat; 33. rotating block; 34. fourth return spring; 35. second plug block; 36. eighth fixed block. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-Figure 18 As shown, a pulse electric field ablation system includes a device body 1; the device body 1 includes a port 2 electrically connected to a high-voltage tail line and an ablation needle through a wire, and a port 3 electrically connected to a high-voltage generator and a controller through a wire, the controller is used to control the start, shutdown and output power of the device body 1, a rocker arm 4 is arranged at the top of the device body 1, and a letter E-shaped plug-in embedded high-voltage output module is arranged inside; the rocker arm 4 is fixedly connected to a display 5, and an assembly mechanism is arranged between the device body 1 and the rocker arm 4.

[0044] The letter E-type plug-in embedded high-voltage output module includes a PCB backplane, a layer board and a plug; the PCB backplane is vertically arranged in the longitudinal manner of the letter E, and the layer board is arranged layer by layer by a high-voltage generator and a plurality of single-layer high-voltage output modules in the horizontal manner of the letter E, n is the number of layers, the bottom layer n=0, which is a high-voltage generator, and each of the remaining layers n=1,2,3... are single-layer high-voltage output modules; the plug includes a high-voltage pulse terminal A connecting the high-voltage wiring and each layer board n and B n , connect the high voltage return line and the annular cylindrical terminal C of each layer n , and the snap-on terminal D for connecting the high voltage tail wire and the ablation needle n The left and right outermost sides of the PCB backplane are high-voltage wiring. Each single-layer high-voltage output module is equipped with a switch and a filter. The high-voltage wiring is processed by the switch and the filter to become a high-voltage return line. The high-voltage return line is connected to the plug C n , back to the inside of the middle of the PCB backplane, and then through D n Enter the high voltage tail wire and finally enter the ablation needle.

[0045] The high-voltage pulse terminal is welded to the PCB backplane, and a 4mm inner diameter high-voltage pulse terminal is used, which is fully and firmly plugged into the single-layer module; 7-9 3mm inner diameter annular cylindrical terminals are welded and fixed on the PCB backplane, and 7-9 snap-on terminals are welded at the same time to lead the high-voltage wiring out of the device to the treatment path.

[0046] High voltage pulse terminal A n It is the positive pole of the internal high-voltage pulse path, high-voltage pulse terminal B n It is the negative pole of the internal high-voltage pulse path, delivering high-voltage pulses to each layer; the annular cylindrical terminal C n To deliver to the snap-on terminal D n High voltage pulse channel; snap-on terminal D n The pulses are input into the ablation needle via a high voltage pigtail.

[0047] During operation, isolation is used to reduce external interference, mainly by installing an isolation transformer at the rear end of the equipment's AC power interface. All power supplies and loads of the equipment are connected to the output of the isolation transformer. When high-frequency and high-voltage pulses are generated, the interference of the production capacity is directly transmitted to interfere with the AC power and nearby equipment connected to the AC power.

[0048] The single-layer high-voltage output module is a composite stacked interlayer. According to the composite number of the interlayer, the single-layer high-voltage output module is divided into a single-layer high-voltage output module 1 and a single-layer high-voltage output module 2;

[0049] The single-layer high-voltage output module 1 adopts a five-layer planar sandwich design of "high-voltage layer, low-voltage layer, high-voltage layer, insulation layer, and shielding layer", and the single-layer high-voltage output module 2 adopts a three-layer planar sandwich design of "high-voltage layer, insulation layer, and shielding layer"; the high-voltage area and low-voltage area on each single-layer high-voltage output module adopt an isolation design, including physical isolation and device isolation.

[0050] The top layer of the single-layer high-voltage output module 1 is the high-voltage return line output path, the middle layer 1 is the middle low-voltage control system, the middle layer 2 is the high-voltage wiring transmission path, the middle layer 3 is the reinforced insulation bakelite plane, and the bottom layer is the aluminum alloy tray plane. The top layer and the middle layer 1, middle layer 2 and middle layer 3 are all separated by 10-15mm air isolation space, and the middle layer 2 and middle layer 3 are separated by more than 10mm air isolation space. The middle layer 3 is in contact and fixed with the bottom layer;

[0051] The top layer of the single-layer high-voltage output module 2 is the high-voltage return line output path, the middle layer is the reinforced insulation bakelite plane, and the bottom layer is the aluminum alloy tray plane. A 10-15mm air isolation space is reserved between the top layer and the middle layer, and the middle layer is in contact and fixed with the bottom layer.

[0052] When working, shielding is used to reduce external interference. A metal shell is mainly used to place the entire system inside the metal shell to shield the radiation generated when high frequency and high voltage are generated from the external environment of the equipment. A filtering design is used to reduce external interference. The filter is a commonly designed PCB circuit filter.

[0053] The assembly mechanism includes a first fixed block 10, which is arranged at the other end of the rocker arm 4, and the top of the first fixed block 10 is welded with the rocker arm 4, a second fixed block 11 is arranged below the first fixed block 10, and the bottom end of the second fixed block 11 is welded with the device body 1, the left end of the second fixed block 11 is welded with a third fixed block 12, and the middle position inside the third fixed block 12 is welded with a fourth fixed block 13, the front and rear ends inside the third fixed block 12 are also welded with one end of the first guide rod 14, and the other end of the first guide rod 14 is welded with the fourth fixed block 13, the outer side of the first guide rod 14 is slidably connected with a moving block 15, the first guide rod 14 is designed as a round rod, and the outer side of the first guide rod 14 is sleeved with a first return spring 16, one end of the first return spring 16 is welded with the moving block 15, and the other end of the first return spring 16 is welded with the third fixed block 12.

[0054] During operation, the moving block 15 moves along the outside of the first guide rod 14 inside the third fixed block 12, and the fourth fixed block 13 is used to fix the position of the first guide rod 14. At the same time, when the moving block 15 moves, it will squeeze the first return spring 16 to shrink.

[0055] Further, the left end of the moving block 15 is welded with a first fixed seat 17, one end of a push rod 18 is rotatably connected to the outer side of the first fixed seat 17, and the other end of the push rod 18 is rotatably connected to a second fixed seat 19, the inner wall of the push rod 18 is circular in design, a pressing plate 20 is welded to the left end of the second fixed seat 19, a fifth fixed block 21 is welded to the right end of the pressing plate 20, a second return spring 22 is welded to the right end of the fifth fixed block 21, and a fourth fixed block 13 is welded to the right end of the second return spring 22;

[0056] During operation, the pressing plate 20 at the side end of the second fixed block 11 is pressed toward the side end of the second fixed block 11, driving the pressing plate 20 to move. The pressing plate 20 moves, driving the second fixed seat 19 and the push rod 18 to move at the same time, and the push rod 18 rotates along the outside of the second fixed seat 19. When the push rod 18 rotates, it also rotates along the outside of the first fixed seat 17 and pushes the moving block 15 to move outward. At the same time, when the pressing plate 20 is pressed, it drives the fifth fixed block 21 to squeeze the second return spring 22 to contract.

[0057] Further, a moving bracket 23 is welded together at one end of the moving block 15, and the moving bracket 23 is slidably connected to the third fixed block 12. Two groups of first plug rods 24 are sleeved inside the moving bracket 23, and the moving bracket 23 is slidably connected to the first plug rod 24. A sixth fixed block 25 is welded together at one end of the first plug rod 24. A third return spring 26 is sleeved at a position near one end of the sixth fixed block 25 on the outer side of the first plug rod 24. The first plug rod 24 is designed as a round rod. One end of the third return spring 26 is welded together with the moving bracket 23, and the other end of the third return spring 26 is welded together with the sixth fixed block 25.

[0058] During operation, the moving block 15 moves, driving the moving bracket 23 to move as well, and one end of the moving bracket 23 moves along the inner wall of the third fixed block 12, and when the moving bracket 23 moves, it drives the first plug rod 24 to move outward at the same time. When installing, it is only necessary to align the first plug block 28 with the inside of the seventh fixed block 29 for insertion. Due to the arc-shaped design of the bottom end of the first plug block 28 and the inclined design of one end of the first plug rod 24, the bottom end of the first plug block 28 will squeeze the inclined surface of one end of the first plug rod 24 to move during insertion. At the same time, when the first plug rod 24 moves, it will drive the sixth fixed block 25 to move synchronously to one side, and when the sixth fixed block 25 moves, it will pull the third return spring 26 to extend until one end of the first plug rod 24 is inserted into the first plug block 28 to complete the installation.

[0059] Furthermore, the front and rear ends of the second fixing block 11 are also welded together with a seventh fixing block 29, and the front and rear ends of the first fixing block 10 are also welded together with a first plug-in block 28, the first plug-in block 28 is inserted inside the seventh fixing block 29, and the first plug-in block 28 is slidably connected to the seventh fixing block 29, the other end of the first plug-in rod 24 is inserted inside the first plug-in block 28, one end of the first plug-in rod 24 is designed with an inclined surface, and the first plug-in rod 24 is slidably connected to the first plug-in block 28, and the bottom end of the first plug-in block 28 is designed in an arc shape;

[0060] During operation, the first plug rod 24 moves outward at the same time, and one end of the first plug rod 24 moves outward along the inside of the first plug block 28 until it is completely disengaged, and then the second fixed block 11 is pulled downward, driving the first plug block 28 to move upward along the inside of the seventh fixed block 29 until it is completely disengaged.

[0061] Furthermore, a second guide rod 30 is sleeved on the outer side of the movable bracket 23, and the movable bracket 23 is slidably connected to the second guide rod 30, and a second fixing block 11 is welded together at one end of the second guide rod 30, and the second guide rod 30 is designed as a round rod;

[0062] During operation, the movable bracket 23 moves, and also moves along the outer side of the second guide rod 30 .

[0063] Furthermore, a sleeve block 27 is sleeved on the outer side of the first plug rod 24, and the first plug rod 24 is slidably connected to the sleeve block 27, the bottom end of the sleeve block 27 is welded together with the device body 1, and the inner wall of the sleeve block 27 is circular in design;

[0064] During operation, the second fixing block 11 is pulled to drive the second insertion rod 31 to move along the inside of the first fixing block 10 until it is completely separated.

[0065] Furthermore, the front and rear ends of the bottom end of the first fixed block 10 are also welded together with a second plug rod 31, the bottom end of the second plug rod 31 is inserted into the second fixed block 11, and the second plug rod 31 is slidably connected to the second fixed block 11, and the second plug rod 31 is designed as a round rod;

[0066] During operation, the second fixing block 11 is pulled to drive the second insertion rod 31 to move along the inside of the first fixing block 10 until it is completely separated.

[0067] Furthermore, a third fixing seat 32 is welded to the right end of the second fixing block 11, a rotating block 33 is rotatably connected to the outer side of the third fixing seat 32, one end of a second plug-in block 35 is inserted inside the rotating block 33, and the rotating block 33 is slidably connected to the second plug-in block 35, and the inner wall of the rotating block 33 is square in design;

[0068] During operation, the second plug block 35 is pulled outward to drive one end of the second plug block 35 to move outward along the inside of the rotating block 33, and the second plug block 35 is flipped outward to drive the rotating block 33 to rotate and open along the outside of the third fixing seat 32.

[0069] Furthermore, the front and rear ends of the left side end of the rotating block 33 are also welded together with the left side end of the fourth return spring 34, and the right side end of the fourth return spring 34 is welded together with one end of the second plug-in block 35, and the second plug-in block 35 is square in design;

[0070] During operation, one end of the second inserting block 35 moves outward along the inside of the rotating block 33 , and at the same time pulls the fourth return spring 34 to extend.

[0071] Furthermore, the other end of the second plug-in block 35 is inserted into the interior of the eighth fixing block 36, and the second plug-in block 35 is slidably connected to the eighth fixing block 36, the left end of the eighth fixing block 36 is welded with the first fixing block 10, and the inner wall of the eighth fixing block 36 is square in design;

[0072] During operation, the second plug block 35 is pulled outward, and the other end of the second plug block 35 moves outward along the inside of the eighth fixing block 36 until it is completely detached.

[0073] Working principle: When a high-power pulse causes the control system dominated by low-voltage control circuits such as FPGA, MCU, communication interface and video interface to operate unstably, immediately adjust the number of installed shelves n according to the situation to adapt to different clinical needs. If the external display device needs to be disassembled and replaced due to a black screen, first pull the second plug block 35 outward to drive one end of the second plug block 35 to move outward along the inside of the rotating block 33, and at the same time pull the fourth reset spring 34 to extend it. At the same time, when the second plug block 35 is pulled outward, the other end of the second plug block 35 moves outward along the inside of the eighth fixed block 36 until it is completely detached, and then flip the second plug block 35 outward to drive the rotating block 33 to move along the third fixed The outer side of the seat 32 is rotated to open, and then the pressing plate 20 at the side end of the second fixed block 11 is pressed toward the side end of the second fixed block 11, driving the pressing plate 20 to move. When the pressing plate 20 moves, it drives the second fixed seat 19 and the push rod 18 to move at the same time, and the push rod 18 rotates along the outer side of the second fixed seat 19. When the push rod 18 rotates, it also rotates along the outer side of the first fixed seat 17 and pushes the moving block 15 to move outward. At the same time, when the pressing plate 20 is pressed, it drives the fifth fixed block 21 to squeeze the second return spring 22 to shrink, and when the moving block 15 moves, it will move along the outer side of the first guide rod 14 inside the third fixed block 12, and the fourth fixed block 13 is used to adjust the first guide rod 14 When the movable block 15 moves, the first return spring 16 will be squeezed to shrink, and when the movable block 15 moves, the movable bracket 23 is also driven to move, and one end of the movable bracket 23 moves along the inner wall of the third fixed block 12, and when the movable bracket 23 moves, the first plug rod 24 is driven to move outward at the same time, and one end of the first plug rod 24 moves outward along the inside of the first plug block 28 until it is completely disengaged, and then the second fixed block 11 is pulled downward, driving the first plug block 28 to move upward along the inside of the seventh fixed block 29 until it is completely disengaged, and at the same time, when the movable bracket 23 moves, it also moves along the outside of the second guide rod 30, and when the second fixed block 11 is pulled, it drives the first plug block 28 to move upward along the inside of the seventh fixed block 29 until it is completely disengaged. The second plug rod 31 moves along the inside of the first fixed block 10 until it is completely detached, and when installing, it is only necessary to align the first plug block 28 with the inside of the seventh fixed block 29 for insertion. Since the bottom end of the first plug block 28 is designed in an arc shape, and one end of the first plug rod 24 is designed as a slope, the bottom end of the first plug block 28 will squeeze the slope of one end of the first plug rod 24 to move during insertion, and when the first plug rod 24 moves, it will drive the sixth fixed block 25 to move synchronously to one side, and when the sixth fixed block 25 moves, it will pull the third return spring 26 to extend until one end of the first plug rod 24 is inserted into the inside of the first plug block 28 to complete the installation, and when the first plug rod 24 moves, it also moves outward along the inside of the sleeve block 27.

[0074] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A pulsed electric field ablation system, comprising a device body (1); characterized in that: The device body (1) comprises a port (2) electrically connected to the high-voltage tail wire and the ablation needle through a wire, and a port (3) electrically connected to the high-voltage generator and the controller through a wire, wherein the controller is used to control the start, shut down and output power of the device body (1); A rocker arm (4) is arranged at the top of the device body (1), and a letter E-shaped plug-in embedded high-voltage output module is arranged inside; The rocker arm (4) is fixedly connected to a display (5), and an assembly mechanism is provided between the device body (1) and the rocker arm (4).

2. A pulsed electric field ablation system according to claim 1, characterized in that: The letter E-shaped plug-in embedded high-voltage output module includes a PCB backplane, a layer board and a plug; The PCB backplane is arranged vertically in the longitudinal direction of the letter E, and the layer board is arranged layer by layer by the high-voltage generator and several single-layer high-voltage output modules in the horizontal direction of the letter E. n is the number of layers, the bottom layer n=0, which is the high-voltage generator, and each of the other layers n=1, 2, 3... are single-layer high-voltage output modules; The plug includes a high-voltage pulse terminal A that connects the high-voltage wiring and each layer board. n and B n , connect the high voltage return line and the annular cylindrical terminal C of each layer n , and the snap-on terminal D for connecting the high voltage tail wire and the ablation needle n ; The left and right outermost sides of the PCB backplane are high voltage wiring; Each single-layer high-voltage output module is equipped with a switch and a filter. The high-voltage line is processed by the switch and the filter to become a high-voltage return line. The high-voltage return line is connected to the plug C n , back to the inside of the middle of the PCB backplane, and then through D n Enter the high voltage tail wire and finally enter the ablation needle.

3. A pulsed electric field ablation system according to claim 2, characterized in that: The assembly mechanism comprises a first fixed block (10), the first fixed block (10) being fixedly connected to the bottom end of the rocker arm (4), a second fixed block (11) being arranged below the first fixed block (10), the bottom end of the second fixed block (11) being fixedly connected to the device body (1), a third fixed block (12) being fixedly connected to the left end of the second fixed block (11), a fourth fixed block (13) being fixedly connected to the middle position inside the third fixed block (12), the front and rear ends inside the third fixed block (12) being fixedly connected to a first guide rod (14), the first guide rod (14) being fixedly connected to the fourth fixed block (13), a moving block (15) being slidably connected to the outside of the first guide rod (14), a first return spring (16) being arranged on the outside of the first guide rod (14), the two ends of the first return spring (16) being fixedly connected to the moving block (15) and the third fixed block (12) respectively.

4. A pulsed electric field ablation system according to claim 2, characterized in that: The single-layer high-voltage output module is a composite stacked interlayer. According to the number of composite interlayers, the single-layer high-voltage output module is divided into a single-layer high-voltage output module 1 and a single-layer high-voltage output module 2; The single-layer high-voltage output module 1 adopts a five-layer planar sandwich design of "high-voltage layer, low-voltage layer, high-voltage layer, insulation layer, and shielding layer", and the single-layer high-voltage output module 2 adopts a three-layer planar sandwich design of "high-voltage layer, insulation layer, and shielding layer"; the high-voltage area and low-voltage area on each single-layer high-voltage output module adopt an isolation design, including physical isolation and device isolation.

5. A pulsed electric field ablation system according to claim 2, characterized in that: The left end of the moving block (15) is fixedly connected to a first fixed seat (17); one end of a push rod (18) is rotatably connected to the outer side of the first fixed seat (17); the push rod (18) is rotatably connected to a second fixed seat (19); the left end of the second fixed seat (19) is fixedly connected to a pressing plate (20); the right end of the pressing plate (20) is fixedly connected to a fifth fixed block (21); the right end of the fifth fixed block (21) is fixedly connected to a second return spring (22); the right end of the second return spring (22) is fixedly connected to a fourth fixed block (13).

6. A pulsed electric field ablation system according to claim 5, characterized in that: One end of the moving block (15) is fixedly connected to a moving bracket (23), the moving bracket (23) is slidably connected to the third fixed block (12), two groups of first plug rods (24) are slidably connected inside the moving bracket (23), the first plug rods (24) are fixedly connected to a sixth fixed block (25), a third return spring (26) is arranged on the outer side of the first plug rod (24) near one end of the sixth fixed block (25), and two ends of the third return spring (26) are respectively fixedly connected to the moving bracket (23) and the sixth fixed block (25).

7. A pulsed electric field ablation system according to claim 6, characterized in that: The second fixed block (11) is fixedly connected to the seventh fixed block (29) at both the front and rear ends, and the first fixed block (10) is fixedly connected to the first plug block (28) at both the front and rear ends, the first plug block (28) is slidably connected to the seventh fixed block (29), and the first plug rod (24) is slidably connected to the first plug block (28); the outer side of the movable bracket (23) is slidably connected to the second guide rod (30), and the second guide rod (30) is fixedly connected to the second fixed block (11); the first plug rod (24) is movably connected to the sleeve block (27), and the bottom end of the sleeve block (27) is fixedly connected to the device body (1).

8. A pulsed electric field ablation system according to claim 7, characterized in that: The front and rear ends of the bottom end of the first fixed block (10) are both fixedly connected to a second plug rod (31), and the bottom end of the second plug rod (31) is slidably connected to the second fixed block (11); the right end of the second fixed block (11) is fixedly connected to a third fixed seat (32), the outer side of the third fixed seat (32) is rotatably connected to a rotating block (33), and the inside of the rotating block (33) is slidably connected to a second plug block (35); the front and rear ends of the left side of the rotating block (33) are both fixedly connected to a fourth return spring (34), and the right end of the fourth return spring (34) is fixedly connected to the second plug block (35).

9. A pulsed electric field ablation system according to claim 8, characterized in that: The high voltage pulse terminal A n It is the positive pole of the internal high-voltage pulse path, high-voltage pulse terminal B n It is the negative pole of the internal high-voltage pulse path, delivering high-voltage pulses to each layer; the annular cylindrical terminal C n To deliver to the snap-on terminal D n High voltage pulse channel; snap-on terminal D n The pulses are input into the ablation needle via a high voltage pigtail.

10. A pulsed electric field ablation system according to claim 9, characterized in that: The top layer of the single-layer high-voltage output module 1 is the high-voltage return line output path, the middle layer 1 is the middle low-voltage control system, the middle layer 2 is the high-voltage wiring transmission path, the middle layer 3 is the reinforced insulation bakelite plane, and the bottom layer is the aluminum alloy tray plane. The top layer and the middle layer 1, middle layer 2 and middle layer 3 are all separated by 10-15mm air isolation space, and the middle layer 2 and middle layer 3 are separated by more than 10mm air isolation space. The middle layer 3 is in contact and fixed with the bottom layer; The top layer of the single-layer high-voltage output module 2 is the high-voltage return line output path, the middle layer is the reinforced insulation bakelite plane, and the bottom layer is the aluminum alloy tray plane. A 10-15mm air isolation space is reserved between the top layer and the middle layer, and the middle layer is in contact and fixed with the bottom layer.

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