CN119818170B - Pulsed electric field ablation system - Google Patents
Pulsed electric field ablation systemInfo
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- CN119818170B CN119818170B CN202411985679.4A CN202411985679A CN119818170B CN 119818170 B CN119818170 B CN 119818170B CN 202411985679 A CN202411985679 A CN 202411985679A CN 119818170 B CN119818170 B CN 119818170B
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Abstract
本发明属于脉冲电场消融系统领域，具体的说是一种脉冲电场消融系统，包括装置主体；装置主体外侧分别通过导线连接有高压尾线和消融针，装置主体顶端设置有摇臂，内部设置字母E型插接嵌入式高压输出模块，摇臂一端固定连接有显示器，装置主体与摇臂之间设置有组装机构；降低对设备内部干扰高压部分整体采用立体层次字母E型模块插接嵌入设计，层间采用半屏蔽与隔离设计，降低对外部电子设备干扰。如果部分显示功能损坏，则通过快速拆除更换的组件，将显示器检修或进行更换。
The present invention belongs to the field of pulsed electric field ablation systems, specifically a pulsed electric field ablation system comprising a device body; the exterior of the device body is connected to a high-voltage tail wire and an ablation needle via wires; 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. A display is fixedly connected to one end of the rocker arm, and an assembly mechanism is provided between the device body and the rocker arm. To reduce internal interference with the device, the high-voltage portion of the device utilizes a three-dimensional, layered, E-shaped module plug-in embedded design, with semi-shielded and isolated layers between layers to reduce interference with external electronic devices. If part of the display function is damaged, the display can be repaired or replaced by quickly removing the replacement component.
Description
Technical Field
The invention relates to the field of pulsed electric field ablation systems, in particular to a pulsed electric field ablation system.
Background
The high voltage pulse ablation device inevitably generates electromagnetic interference. For example, in practical pulsed electric field ablation applications, in order to meet clinical requirements, it is often necessary to generate a nanosecond pulse of several kilovolts to tens of kilovolts within a few nanoseconds to tens of nanoseconds, that is, the pulse voltage needs to be suddenly changed from 0 volt to tens of kilovolts in a few nanoseconds to tens of nanoseconds, and the corresponding pulse current can be suddenly changed from 0 ampere to 100-200 amperes at maximum. In addition, in practical therapeutic applications, it is often necessary that multiple pulses be released densely in extreme time, such as tens to hundreds of pulses within a few milliseconds. Thus, the multiple pulses also create a superimposed effect of electromagnetic energy in space and lines.
The high frequency and high voltage pulse energy generation of the pulsed atrial fibrillation ablation device produces strong electromagnetic interference, some of which affects the surrounding systems and devices by radiation and some of which affects the surrounding system devices by conduction. The high power pulse can cause unstable operation of a control system led by low voltage control circuits such as an FPGA (field programmable gate array), an MCU (micro control unit), a communication interface, a video interface and the like, or cause accidents such as black screen of external display equipment, dead halt of external PC and the like, and further cause the reliability of the system to be reduced.
On the one hand, in order to ensure that the pulse atrial fibrillation ablation device generates high-frequency high-voltage pulse energy to be safely and stably output, the interference to a low-voltage control system is reduced as much as possible when the high-frequency high-voltage pulse is generated. On the other hand, as the pulse atrial fibrillation ablation device is usually used together with a display during treatment, the display needs to be replaced in time once the display fault occurs, and other surrounding auxiliary devices are quickly assembled and disassembled as much as possible, so that the normal operation of the display is ensured.
Accordingly, the present invention addresses the above-described problems by providing a pulsed electric field ablation system.
Disclosure of Invention
In order to make up the deficiency of the prior art, the existing device does not solve the problem of electromagnetic interference, and meanwhile does not solve the problem of being convenient to detach and replace, so that high-frequency, high-voltage, high-current and high-density high-energy pulses/pulse trains which are required clinically can cause strong electromagnetic radiation interference in equipment, and the problem of being difficult to replace when a display device is externally connected with a black screen is solved.
The pulse electric field ablation system comprises a device main body, wherein the device main body comprises a port electrically connected with a high-voltage tail wire and an ablation needle through a wire, and a port electrically connected with a high-voltage generator and a controller through a wire, the controller is used for controlling starting, closing and output power of the device main body, a rocker arm is arranged at the top end of the device main body, an letter E type plug-in embedded high-voltage output module is arranged in the device main body, a display is fixedly connected to the rocker arm, and an assembly mechanism is arranged between the device main body and the rocker arm.
The letter E type plug-in embedded high-voltage output module comprises a PCB backboard, a laminate and a butt plug, wherein the PCB backboard is vertically arranged in a longitudinal mode of the letter E, the laminate is formed by a high-voltage generator and a plurality of single-layer high-voltage output modules in a transverse mode of the letter E, n is the number of layers, n=0 of the lowest layer is the high-voltage generator, n=1, 2 and 3 of each layer are all single-layer high-voltage output modules, the butt plug comprises a high-voltage pulse terminal A n and a high-voltage pulse terminal B n which are connected with a high-voltage wiring and each laminate, a ring-shaped cylindrical terminal C n which is connected with the high-voltage wiring and each laminate, and a buckling terminal D n which is connected with the high-voltage wiring and an ablation needle, the left and right outermost side of the PCB backboard is provided with a switcher and a filter, the high-voltage wiring is a high-voltage wiring after being processed by the switcher and the filter, and the high-voltage wiring returns to the inner side of the backboard through the butt plug n, then enters the high-voltage wiring through the D n and finally enters the ablation needle.
The assembly mechanism comprises a first fixed block, the first fixed block is arranged at the other end of the rocker arm, the top end of the first fixed block is fixedly connected with 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 with a device main body, the left side end of the second fixed block is fixedly connected with a third fixed block, the middle position of the inside of the third fixed block is fixedly connected with a fourth fixed block, the front end and the rear end of the inside of the third fixed block are fixedly connected with one end of a first guide rod, the other end of the first guide rod is fixedly connected with the fourth fixed block, the outside of the first guide rod is slidably connected with a moving block, a first reset spring is sleeved outside the first guide rod, one end of the first reset spring is fixedly connected with the moving block, and the other end of the first reset spring is fixedly connected with the third fixed block.
The single-layer high-voltage output module is a composite superposition interlayer, and is divided into a single-layer high-voltage output module I and a single-layer high-voltage output module II according to the composite quantity of the interlayers, wherein the single-layer high-voltage output module I adopts 5 planar interlayers of a high-voltage layer, a low-voltage layer, a high-voltage layer, an insulating layer and a shielding layer, the single-layer high-voltage output module II adopts 3 planar interlayers of a high-voltage layer, an insulating layer and a shielding layer, and a high-voltage area and a low-voltage area on each single-layer high-voltage output module adopt isolation designs, including physical isolation and device isolation.
The movable block left side end fixedly connected with first fixing base, first fixing base outside is rotated and is connected with push rod one end, the push rod other end is rotated and is connected with the second fixing base, second fixing base left side end fixedly connected with presses the board, press board right side end fixedly connected with fifth fixed block, fifth fixed block right side end fixedly connected with second reset spring, second reset spring right side end fixedly connected with fourth fixed block.
The movable block one end fixedly connected with movable support, movable support sliding connection has the third fixed block, the inside cover of movable support is equipped with two sets of first inserted bars, and movable support sliding connection has first inserted bars, first inserted bar one end fixedly connected with sixth fixed block, the position department cover that is close to sixth fixed block one end in the first inserted bar outside is equipped with third reset spring, third reset spring one end fixedly connected with movable support, third reset spring other end fixedly connected with sixth fixed block.
The seventh fixed block is fixedly connected to the front end and the rear end of the second fixed block, the first inserting block is fixedly connected to the front end and the rear end of the first fixed block, the first inserting block is inserted into the seventh fixed block, the seventh fixed block is slidably connected to the first inserting block, the other end of the first inserting rod is inserted into the first inserting block, and the first inserting rod is slidably connected with the first inserting block. The movable support is sleeved with a second guide rod outside, the movable support is connected with the second guide rod in a sliding mode, and one end of the second guide rod is fixedly connected with a second fixing block. The first inserted bar outside cover is equipped with the cover piece, and first inserted bar sliding connection has the cover piece, cover piece bottom fixedly connected with device main part.
The front end and the rear end of the bottom end of the first fixed block are fixedly connected with second inserting rods, the bottom ends of the second inserting rods are inserted into the second fixed block, and the second inserting rods are slidably connected with the second fixed block.
The right side end fixedly connected with third fixing base of second fixed block, the third fixing base outside rotates and is connected with the rotating block, the inside second inserted block one end that inserts of rotating block, and rotating block sliding connection has the second inserted block. The front end and the rear end of the left side end inside the rotating block are fixedly connected with the left side end of a fourth reset spring, and the right side end of the fourth reset spring is fixedly connected with one end of a second inserting block. The other end of the second inserting block is inserted into the eighth fixing block, the second inserting block is connected with the eighth fixing block in a sliding mode, and the left side end of the eighth fixing block is fixedly connected with the first fixing block.
The high-voltage pulse terminal A n is the positive electrode of an internal high-voltage pulse channel, the high-voltage pulse terminal B n is the negative electrode of the internal high-voltage pulse channel and is used for conveying high-voltage pulses to each laminate, the annular cylindrical terminal C n is a high-voltage pulse channel which is conveyed to the buckling terminal D n, and the buckling terminal D n is used for conveying the pulses to the ablation needle through a high-voltage tail wire.
The top layer of the single-layer high-voltage output module I is a high-voltage loop output path, the middle layer I is a middle low-voltage control system, the middle layer II is a high-voltage routing conveying path, the middle layer III is a reinforced insulation bakelite plate plane, the bottom layer is an aluminum alloy tray plane, 10-15 mm air isolation spaces are reserved between the top layer and the middle layer I, between the middle layer II and the middle layer III, and between the middle layer III and the bottom layer are fixed in a contact mode.
The top layer of the second single-layer high-voltage output module is a high-voltage loop output path, the middle layer is a reinforced insulation bakelite plate plane, and the bottom layer is an aluminum alloy tray plane. An air isolation space of 10-15 mm is reserved between the top layer and the middle layer, the middle layer is fixed with the bottom layer in a contact way.
The invention has the advantages that:
1. the invention adopts letter E type insertion and embedding design to reduce the internal interference of equipment, adopts isolation, shielding and filtering to reduce the external interference, adopts modularized design, is simple and convenient to install, is plug and play, can adjust and increase and decrease the number of the installed laminates according to different output channel requirements so as to adapt to different clinical requirements, not only can ensure the flexible switching of multiple paths of electrodes, but also can realize the wiring of high-voltage pulses on a PCB card, thereby reducing electromagnetic radiation interference as much as possible;
2. The invention not only can work at the optimal position of avoiding electromagnetic radiation for the display through the structural design of the assembly mechanism and the multidirectional rotation of the rocker arm, but also can realize the functions of convenient disassembly and assembly, solves the problems that the existing device does not have a component which can be conveniently and quickly disassembled and replaced for the display, and when encountering an electromagnetic radiation black screen, the display needs to be overhauled or replaced, but the existing device is not provided with the component which can be conveniently replaced, thereby leading to the problems of long waiting maintenance time and difficult operation during treatment and improving the convenience in disassembly.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the device of the present invention;
FIG. 2 is a schematic diagram of a dual plug structure according to the present invention;
FIG. 3 is a schematic diagram of an alphabet E-type plug-in embedded high voltage output module according to the present invention;
FIG. 4 is a schematic diagram of a composite stacked sandwich of a single layer high voltage output module of the present invention;
FIG. 5 is a schematic perspective view of the present invention;
FIG. 6 is a schematic top view of a first cross-sectional structure of the present invention;
FIG. 7 is a schematic view of a second top view cross section of the present invention;
FIG. 8 is a schematic diagram of a first side view in cross section of the present invention;
FIG. 9 is a schematic diagram of a second side view cross section of the present invention;
FIG. 10 is a schematic structural view of a third side cross-section of the present invention;
FIG. 11 is an enlarged schematic view of the structure of FIG. 6A according to the present invention;
FIG. 12 is an enlarged schematic view of the structure of FIG. 6B according to the present invention;
FIG. 13 is an enlarged schematic view of the structure of FIG. 7C according to the present invention;
FIG. 14 is an enlarged schematic view of the structure of FIG. 7D according to the present invention;
FIG. 15 is an enlarged schematic view of the structure of FIG. 8 according to the present invention;
FIG. 16 is an enlarged schematic view of the structure of FIG. 8 at F in accordance with the present invention;
FIG. 17 is an enlarged schematic view of the structure of FIG. 9G according to the present invention;
Fig. 18 is a schematic diagram of the structure of the enlarged schematic diagram H in fig. 10 according to the present invention.
In the figure, 1, a device main body, 2, 3, 4, a rocker arm, 5, a display, 10, a first fixed block, 11, a second fixed block, 12, a third fixed block, 13, a fourth fixed block, 14, a first guide rod, 15, a moving block, 16, a first return spring, 17, a first fixed seat, 18, a push rod, 19, a second fixed seat, 20, a pressing plate, 21, a fifth fixed block, 22, a second return spring, 23, a moving bracket, 24, a first inserting rod, 25, a sixth fixed block, 26, a third return spring, 27, a sleeve block, 28, a first inserting block, 29, a seventh fixed block, 30, a second guide rod, 31, a second inserting rod, 32, a third fixed seat, a rotating block, 34, a fourth return spring, 35, a second inserting block, 36 and an eighth fixed block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-18, a pulsed electric field ablation system comprises a device main body 1, wherein the device main body 1 comprises a port 2 electrically connected with a high-voltage tail wire and an ablation needle through a wire, and a port 3 electrically connected with a high-voltage generator and a controller through a wire, the controller is used for controlling starting, closing and outputting power of the device main body 1, a rocker arm 4 is arranged at the top end of the device main body 1, an letter E type plug-in embedded high-voltage output module is arranged in the device main body 1, a display 5 is fixedly connected to the rocker arm 4, and an assembly mechanism is arranged between the device main body 1 and the rocker arm 4.
The letter E type plug-in embedded high-voltage output module comprises a PCB backboard, a laminate and a butt plug, wherein the PCB backboard is vertically arranged in a longitudinal mode of the letter E, the laminate is formed by arranging a high-voltage generator and a plurality of single-layer high-voltage output modules layer by layer in a transverse mode of the letter E, n is the number of layers, n=0 of the lowest layer is the high-voltage generator, n=1, 2 and 3 of each layer are all single-layer high-voltage output modules, the butt plug comprises a high-voltage pulse terminal A n and a high-voltage pulse terminal B n which are connected with a high-voltage wiring and each laminate, a circular cylindrical terminal C n which is connected with the high-voltage wiring and each laminate, and a buckling terminal D n which is connected with the high-voltage tail wire and an ablation needle, the left and right outermost side of the PCB backboard are high-voltage wiring, each single-layer high-voltage output module is provided with a switcher and a filter, the high-voltage wiring is processed by the switcher and the filter, and the high-voltage wiring returns to the inner side of the middle of the PCB backboard through the butt plug C n, and then enters the high-voltage tail wire through the D n and finally enters the ablation needle.
The high-voltage pulse terminal is welded on the PCB backboard, the high-voltage pulse terminal with the inner diameter of 4mm is adopted to be fully and firmly spliced with the single-layer module, 7-9 annular cylindrical terminals with the inner diameter of 3mm are welded and fixed on the PCB backboard, and 7-9 buckling terminals are welded at the same time and used for leading out high-voltage wiring to a treatment path.
The high-voltage pulse terminal A n is the positive electrode of an internal high-voltage pulse channel, the high-voltage pulse terminal B n is the negative electrode of the internal high-voltage pulse channel and is used for conveying high-voltage pulses to each laminate, the annular cylindrical terminal C n is a high-voltage pulse channel which is conveyed to the buckling terminal D n, and the buckling terminal D n is used for conveying the pulses to the ablation needle through a high-voltage tail wire.
When the device works, external interference is reduced by adopting isolation, the isolation transformer is arranged at the rear end of a mains supply interface of the device, all power supplies and loads of the device are connected to the output of the isolation transformer, and interference of capacity generated during resistance high-frequency high-voltage pulse generation is directly conducted out to interfere with the mains supply and nearby power supply devices.
The single-layer high-voltage output module is a composite superposition interlayer, and is divided into a single-layer high-voltage output module I and a single-layer high-voltage output module II according to the composite quantity of the interlayers;
The single-layer high-voltage output module I adopts 5 planar interlayer designs of a high-voltage layer, a low-voltage layer, a high-voltage layer, an insulating layer and a shielding layer, the single-layer high-voltage output module II adopts 3 planar interlayer designs of the high-voltage layer, the insulating layer and the shielding layer, and a high-voltage area and a low-voltage area on each single-layer high-voltage output module adopt isolation designs, including physical isolation and device isolation.
The top layer of the single-layer high-voltage output module I is a high-voltage loop output path, the middle layer I is a middle low-voltage control system, the middle layer II is a high-voltage routing conveying path, the middle layer III is a reinforced insulation bakelite plate plane, the bottom layer is an aluminum alloy tray plane, 10-15 mm air isolation spaces are reserved between the top layer and the middle layer I, between the middle layer II and the middle layer III, and between the middle layer III and the bottom layer are fixed in a contact manner;
the top layer of the single-layer high-voltage output module II is a high-voltage loop output path, the middle layer is a reinforced insulation bakelite plate plane, and the bottom layer is an aluminum alloy tray plane. An air isolation space of 10-15 mm is reserved between the top layer and the middle layer, the middle layer is fixed with the bottom layer in a contact way.
During operation, the shielding is adopted to reduce external interference, the metal shell is mainly adopted, the whole system is arranged inside the metal shell, and radiation generated during high-frequency and high-voltage generation is shielded in the external environment of the equipment. External interference is reduced by adopting a filtering design, and the filter is a PCB circuit filter with common design.
The assembly mechanism comprises a first fixed block 10, the first fixed block 10 is arranged at the other end of a rocker arm 4, the top ends of the first fixed block 10 are welded together to form the rocker arm 4, a second fixed block 11 is arranged below the first fixed block 10, the bottom ends of the second fixed block 11 are welded together to form a device main body 1, the left side ends of the second fixed block 11 are welded together to form a third fixed block 12, the middle position of the inside of the third fixed block 12 is welded together to form a fourth fixed block 13, the front end and the rear end of the inside of the third fixed block 12 are welded together to form one end of a first guide rod 14, the other end of the first guide rod 14 is welded together to form a fourth fixed block 13, a moving block 15 is slidably connected to the outer side of the first guide rod 14, the first guide rod 14 is designed as a circular rod, a first return spring 16 is sleeved on the outer side of the first guide rod 14, one end of the first return spring 16 is welded together to form the moving block 15, and the other end of the first return spring 16 is welded together to form the third fixed block 12.
In operation, the moving block 15 moves along the outer side of the first guide rod 14 inside the third fixed block 12, and the fourth fixed block 13 is used for fixing the position of the first guide rod 14, and when the moving block 15 moves, the first return spring 16 is extruded to contract.
Further, the left side end of the moving block 15 is welded together to form 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 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 of circular design, the left side end of the second fixed seat 19 is welded together to form a pressing plate 20, the right side end of the pressing plate 20 is welded together to form a fifth fixed block 21, the right side end of the fifth fixed block 21 is welded together to form a second reset spring 22, and the right side end of the second reset spring 22 is welded together to form a fourth fixed block 13;
During operation, the pressing plate 20 at the side end of the second fixed block 11 is pressed towards the side end of the second fixed block 11, the pressing plate 20 is driven to move, the second fixed seat 19 and the push rod 18 are driven to move simultaneously, the push rod 18 rotates along the outer side of the second fixed seat 19, and when the push rod 18 rotates, the push rod 18 also rotates along the outer side of the first fixed seat 17, the moving block 15 is pushed to move outwards, and meanwhile, the fifth fixed block 21 is driven to squeeze the second reset spring 22 to shrink when the pressing plate 20 presses.
Further, one end of the moving block 15 is welded together to form a moving bracket 23, the moving bracket 23 is slidably connected with a third fixed block 12, two groups of first inserting rods 24 are sleeved in the moving bracket 23, the moving bracket 23 is slidably connected with the first inserting rods 24, one end of each first inserting rod 24 is welded together to form a sixth fixed block 25, a third reset spring 26 is sleeved at a position, close to one end of each sixth fixed block 25, of the outer side of each first inserting rod 24, the first inserting rod 24 is in a circular rod design, one end of each third reset spring 26 is welded together to form a moving bracket 23, and the other end of each third reset spring 26 is welded together to form a sixth fixed block 25;
During operation, the moving block 15 moves to drive the moving bracket 23 to move as well, 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, the first inserting rod 24 is driven to move outwards simultaneously, when the installation is performed, the first inserting block 28 is only required to be aligned with the inside of the seventh fixed block 29 to be inserted, because the bottom end of the first inserting block 28 is designed into an arc shape, one end of the first inserting rod 24 is designed into an inclined plane, the bottom end of the first inserting block 28 can extrude the inclined plane of one end of the first inserting rod 24 to move when being inserted, and meanwhile, when the first inserting rod 24 moves, the sixth fixed block 25 is driven to synchronously move to one side, and when the sixth fixed block 25 moves, the third reset spring 26 is pulled to extend until one end of the first inserting rod 24 is inserted into the inside of the first inserting block 28, and the installation can be completed.
Further, the front end and the rear end of the second fixed block 11 are welded together to form a seventh fixed block 29, the front end and the rear end of the first fixed block 10 are welded together to form a first insert block 28, the first insert block 28 is inserted into the seventh fixed block 29, the first insert block 28 is slidably connected with the seventh fixed block 29, the other end of the first insert rod 24 is inserted into the first insert block 28, one end of the first insert rod 24 is in an inclined plane design, the first insert rod 24 is slidably connected with the first insert block 28, and the bottom end of the first insert block 28 is in an arc-shaped design;
During operation, the first insert rod 24 moves outwards simultaneously, and one end of the first insert rod 24 moves outwards along the inside of the first insert block 28 until the second fixed block 11 is pulled downwards after the first insert rod is completely separated, so that the first insert block 28 is driven to move upwards along the inside of the seventh fixed block 29 until the first insert rod is completely separated.
Further, a second guide rod 30 is sleeved outside the movable support 23, the movable support 23 is connected with the second guide rod 30 in a sliding manner, one end of the second guide rod 30 is welded together to form a second fixed block 11, and the second guide rod 30 is designed as a circular rod;
in operation, the movable support 23 moves, likewise along the outside of the second guide bar 30.
Further, a sleeve block 27 is sleeved outside the first inserted link 24, the first inserted link 24 is connected with the sleeve block 27 in a sliding manner, the bottom ends of the sleeve blocks 27 are welded together to form a device main body 1, and the inner wall of the sleeve block 27 is of a circular design;
when the device works, the second fixing block 11 is pulled to drive the second inserting rod 31 to move along the inside of the first fixing block 10 until the second inserting rod is completely separated.
Further, the front end and the rear end of the bottom end of the first fixed block 10 are welded together to form a second inserting rod 31, the bottom end of the second inserting rod 31 is inserted into the second fixed block 11, the second inserting rod 31 is slidably connected with the second fixed block 11, and the second inserting rod 31 is designed as a circular rod;
when the device works, the second fixing block 11 is pulled to drive the second inserting rod 31 to move along the inside of the first fixing block 10 until the second inserting rod is completely separated.
Further, the right side end of the second fixed block 11 is welded together to form a third fixed seat 32, a rotating block 33 is rotatably connected to the outer side of the third fixed seat 32, one end of a second inserting block 35 is inserted into the rotating block 33, the rotating block 33 is slidably connected with the second inserting block 35, and the inner wall of the rotating block 33 is square;
during operation, the second insert 35 is pulled outwards, so as to drive one end of the second insert 35 to move outwards along the inside of the rotating block 33, and the second insert 35 is turned outwards, so as to drive the rotating block 33 to rotate and open along the outer side of the third fixing seat 32.
Further, the front and rear ends of the left side end inside the rotating block 33 are welded together to form a left side end of a fourth return spring 34, the right side end of the fourth return spring 34 is welded together to form one end of a second insert block 35, and the second insert block 35 is square;
in operation, one end of the second insert 35 moves outwards along the inside of the rotating block 33, and pulls the fourth return spring 34 to extend.
Further, the other end of the second inserting block 35 is inserted into the eighth fixing block 36, the second inserting block 35 is connected with the eighth fixing block 36 in a sliding manner, the left side 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;
When in operation, the second insert block 35 is pulled outwards, and the other end of the second insert block 35 moves outwards along the inside of the eighth fixed block 36 until the second insert block is completely separated from the eighth fixed block.
Working principle: when the high power pulse causes unstable operation of the control system led by the low voltage control circuits such as the FPGA, the MCU, the communication interface, the video interface and the like, the number n of the layers which are arranged is adjusted, increased and decreased immediately according to the situation requirement, so as to adapt to different clinical requirements, if the external display equipment black screen needs to be disassembled and replaced, the second inserting block 35 is pulled outwards firstly, one end of the second inserting block 35 is driven to move outwards along the inside of the rotating block 33, the fourth reset spring 34 is pulled to extend, meanwhile, when the second inserting block 35 is pulled outwards, the other end of the second inserting block 35 is driven to move outwards along the inside of the eighth fixed block 36 until the second inserting block is completely separated, the second inserting block 35 is turned outwards, the rotating block 33 is driven to rotate and open along the outside of the third fixed seat 32, the pressing plate 20 at the side end of the second fixed block 11 is pressed towards the side end of the second fixed block 11, the pressing plate 20 is driven to move, when the pressing plate 20 moves, the second fixing seat 19 and the push rod 18 are driven to move simultaneously, the push rod 18 rotates along the outer side of the second fixing seat 19, and when the push rod 18 rotates, the push rod also rotates along the outer side of the first fixing seat 17, and the moving block 15 is pushed to move outwards, meanwhile, when the pressing plate 20 presses, the fifth fixing block 21 is driven to extrude the second return spring 22 to shrink, and when the moving block 15 moves, the moving block 15 moves along the outer side of the first guide rod 14 inside the third fixing block 12, and the fourth fixing block 13 is used for fixing the position of the first guide rod 14, and when the moving block 15 moves, the first return spring 16 is extruded to shrink, and when the moving block 15 moves, the moving bracket 23 is driven to move along the inner wall of the third fixing block 12, and when the movable support 23 moves, the first inserting rod 24 is driven to move outwards simultaneously, one end of the first inserting rod 24 moves outwards along the inside of the first inserting block 28 until the second fixing block 11 is pulled downwards after the first inserting rod is completely separated, the first inserting block 28 is driven to move upwards along the inside of the seventh fixing block 29 until the first inserting rod is completely separated, when the movable support 23 moves, the second inserting rod 31 is driven to move outwards along the outside of the second guide rod 30 simultaneously, when the second fixing block 11 is pulled, the second inserting rod 31 is driven to move along the inside of the first fixing block 10 until the first inserting block 11 is completely separated, and when the first inserting rod 24 is installed, only the first inserting block 28 is required to be aligned with the inside of the seventh fixing block 29 for insertion, due to the circular arc design of the bottom end of the first inserting block 28, meanwhile, the bottom end of the first inserting rod 24 is designed to be inclined, when the first inserting rod 24 is inserted, the bottom end of the first inserting rod 28 is extruded to move upwards along the inclined surface of the first inserting rod 24, when the first inserting rod 24 moves, the sixth fixing block 25 is driven to synchronously move along the outside of the second guide rod 30 simultaneously, when the sixth fixing block 25 moves, and when the sixth fixing block 25 moves, the third reset spring 26 is pulled to extend the first inserting rod 24 to move along the inside of the first inserting rod 24 until the inside of the first inserting rod 24 is completely separated from the inside, and the first inserting rod 24 is installed outwards.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (8)
1. A pulsed electric field ablation system comprises a device main body (1), and is characterized in that:
The device main body (1) comprises a port (2) electrically connected with the high-voltage tail wire and the ablation needle through a wire, and a port (3) electrically connected with the high-voltage generator and the controller through the wire, wherein the controller is used for controlling the starting, closing and power output of the device main body (1);
The top end of the device main body (1) is provided with a rocker arm (4), and an E-letter type plug-in embedded high-voltage output module is arranged in the rocker arm;
The rocker arm (4) is fixedly connected with a display (5), and an assembling mechanism is arranged between the device main body (1) and the rocker arm (4);
The letter E type plug-in embedded high-voltage output module comprises a PCB backboard, a laminate and a counter plug;
The PCB backboard is vertically arranged according to a longitudinal mode of a letter E, the laminates are arranged layer by a high-voltage generator and a plurality of single-layer high-voltage output modules according to a transverse mode of the letter E, n is the number of layers, the lowest layer n=0 is the high-voltage generator, and each of the other layers n=1, 2 and 3 is the single-layer high-voltage output module, wherein the pair plug comprises high-voltage pulse terminals A n and B n for connecting a high-voltage wiring and each laminate, an annular cylindrical terminal C n for connecting a high-voltage return wire and each laminate, and a buckling terminal D n for connecting a high-voltage tail wire and an ablation needle;
Each single-layer high-voltage output module is provided with a switcher and a filter, and the high-voltage wiring is a high-voltage loop after being processed by the switcher and the filter, and the high-voltage loop returns to the inner side of the middle part of the PCB backboard through a plug C n and then enters a high-voltage tail wire through a D n and finally enters an ablation needle;
The single-layer high-voltage output module I adopts 5 planar interlayer designs of a high-voltage layer, a low-voltage layer, a high-voltage layer, an insulating layer and a shielding layer, the single-layer high-voltage output module II adopts 3 planar interlayer designs of the high-voltage layer, the insulating layer and the shielding layer, and a high-voltage area and a low-voltage area on each single-layer high-voltage output module adopt isolation designs, including physical isolation and device isolation.
2. The pulsed electric field ablation system according to claim 1, wherein the assembly mechanism comprises a first fixed block (10), the first fixed block (10) is fixedly connected with the bottom end of the rocker arm (4), a second fixed block (11) is arranged below the first fixed block (10), the bottom end of the second fixed block (11) is fixedly connected with the device main body (1), a third fixed block (12) is fixedly connected with the left side end of the second fixed block (11), a fourth fixed block (13) is fixedly connected with the middle position inside the third fixed block (12), first guide rods (14) are fixedly connected with the front end and the rear end inside the third fixed block (12), the first guide rods (14) are fixedly connected with the fourth fixed block (13), moving blocks (15) are slidably connected to the outer sides of the first guide rods (14), first reset springs (16) are arranged on the outer sides of the first guide rods (14), and two ends of each first reset spring (16) are fixedly connected with the moving blocks (15) and the third fixed block (12).
3. The pulsed electric field ablation system of claim 2, wherein a first fixing seat (17) is fixedly connected to the left side end of the moving block (15), one end of a push rod (18) is rotatably connected to the outer side of the first fixing seat (17), a second fixing seat (19) is rotatably connected to the push rod (18), a pressing plate (20) is fixedly connected to the left side end of the second fixing seat (19), a fifth fixing block (21) is fixedly connected to the right side end of the pressing plate (20), a second return spring (22) is fixedly connected to the right side end of the fifth fixing block (21), and the right side end of the second return spring (22) is fixedly connected with the fourth fixing block (13).
4. A pulsed electric field ablation system according to claim 3, wherein one end of the moving block (15) is fixedly connected with a moving support (23), the moving support (23) is slidably connected with a third fixed block (12), two groups of first inserting rods (24) are slidably connected inside the moving support (23), a sixth fixed block (25) is fixedly connected with the first inserting rods (24), a third reset spring (26) is arranged at a position, close to one end of the sixth fixed block (25), of the outer side of the first inserting rods (24), and two ends of the third reset spring (26) are fixedly connected with the moving support (23) and the sixth fixed block (25) respectively.
5. The pulsed electric field ablation system according to claim 4, wherein a seventh fixed block (29) is fixedly connected to the front end and the rear end of the second fixed block (11), a first inserting block (28) is fixedly connected to the front end and the rear end of the first fixed block (10), the first inserting block (28) is slidably connected with the seventh fixed block (29), the first inserting rod (24) is slidably connected with the first inserting block (28), a second guide rod (30) is slidably connected to the outer side of the movable support (23), the second guide rod (30) is fixedly connected with the second fixed block (11), a sleeve block (27) is movably connected to the first inserting rod (24), and the bottom end of the sleeve block (27) is fixedly connected with the device main body (1).
6. The pulsed electric field ablation system of claim 5, wherein a second inserting rod (31) is fixedly connected to the front end and the rear end of the bottom end of the first fixed block (10), the bottom end of the second inserting rod (31) is in sliding connection with the second fixed block (11), a third fixing seat (32) is fixedly connected to the right side end of the second fixed block (11), a rotating block (33) is rotatably connected to the outer side of the third fixing seat (32), a second inserting block (35) is fixedly connected to the inner side of the rotating block (33), a fourth reset spring (34) is fixedly connected to the front end and the rear end of the inner left side of the rotating block (33), and a second inserting block (35) is fixedly connected to the right side end of the fourth reset spring (34).
7. The pulsed electric field ablation system of claim 6, wherein said high voltage pulse terminal A n is the positive pole of the internal high voltage pulse path, high voltage pulse terminal B n is the negative pole of the internal high voltage pulse path, high voltage pulses are delivered to each lamina, said annular cylindrical terminal C n is the high voltage pulse path delivered to the buckle terminal D n, and buckle terminal D n delivers pulses to the ablation needle via the high voltage tail.
8. The pulsed electric field ablation system of claim 7, wherein a top layer of the single-layer high-voltage output module is a high-voltage loop output path, a middle layer I is a middle low-voltage control system, a middle layer II is a high-voltage wiring conveying path, a middle layer III is a reinforced insulation bakelite plate plane, a bottom layer is an aluminum alloy tray plane, 10-15 mm air isolation spaces are reserved from the top layer to the middle layer I, the middle layer II and the middle layer III, more than 10mm air isolation spaces are reserved from the middle layer II and the middle layer III, the middle layer III is fixed in a contact manner with the bottom layer, the top layer of the single-layer high-voltage output module II is a high-voltage loop output path, the middle layer is a reinforced insulation bakelite plate plane, the bottom layer is an aluminum alloy tray plane, the top layer to the middle layer and the middle layer leave 10-15 mm air isolation spaces, and the middle layer is fixed in a contact manner.
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| TWM530406U (en) * | 2016-01-14 | 2016-10-11 | Josephtec Co Ltd | Combination of multiple sets multi-loops solar power series monitoring device capable of being modularized |
| CN111529059A (en) * | 2020-06-11 | 2020-08-14 | 浙江大学 | A mobile nanosecond pulse ablation instrument |
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| KR200277173Y1 (en) * | 1998-02-12 | 2002-07-18 | 이종수 | pulse transformer for high voltage pulse supply |
| EP3641838B1 (en) * | 2017-06-19 | 2023-04-26 | Oy Lifa Air Ltd | Electrical filter structure |
| CN110649678B (en) * | 2019-10-11 | 2024-01-16 | 联方云天科技(珠海)有限公司 | A high voltage battery system |
| CN117317736A (en) * | 2023-09-28 | 2023-12-29 | 博洛尼智能科技（青岛）有限公司 | Quick-install hidden conductive system for panel furniture |
| CN221671949U (en) * | 2023-11-23 | 2024-09-10 | 邦士医疗科技股份有限公司 | A steep pulse ablation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWM530406U (en) * | 2016-01-14 | 2016-10-11 | Josephtec Co Ltd | Combination of multiple sets multi-loops solar power series monitoring device capable of being modularized |
| CN111529059A (en) * | 2020-06-11 | 2020-08-14 | 浙江大学 | A mobile nanosecond pulse ablation instrument |
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