A special instrument for pulse field ablation treatment of hypertrophic cardiomyopathy

Abstract

The application discloses a special instrument for pulse field ablation treatment of hypertrophic cardiomyopathy, and relates to the technical field of medical instruments, which comprises an instrument main body, a support detachably installed at the bottom of the instrument main body, an outer sheath control button arranged at the middle of the instrument main body, a first ablation treatment catheter treatment knob, a second ablation treatment catheter treatment knob and a catheter ablation needle control button arranged in sequence from left to right at the middle of the instrument main body, a magnetic isolation plate control button, a connecting sleeve and a sterilization sleeve arranged in sequence from right to left at the middle of the instrument main body, a connecting rod fixedly arranged between the connecting sleeve and the sterilization sleeve, and a first catheter and a second catheter arranged in the sterilization sleeve. The instrument is simple to operate, can guarantee accurate control of an ablation area and full use of ablation energy in the operation to the maximum extent, and has high safety and effectiveness.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a special device for pulsed field ablation therapy of hypertrophic cardiomyopathy. Background Technology

[0002] Hypertrophic obstructive cardiomyopathy (HOCM) is the most common hereditary cardiomyopathy, characterized by abnormal thickening of the ventricular wall without abnormal cardiac load, primarily affecting the interventricular septum. Currently, treatment options for HOCM vary. Surgically, septal resection is mainly performed to remove the hypertrophic myocardium from the interventricular septum; medically, catheter radiofrequency ablation is mainly used to destroy the hypertrophic myocardium in the interventricular septum. Both procedures alleviate symptoms by directly removing or destroying the hypertrophic myocardium to reduce left ventricular outflow tract pressure. However, both procedures require extremely precise surgical technique, and there is a high risk of over- or under-removal of hypertrophic myocardium, or excessive or insufficient ablation. This can easily damage the normal myocardial conduction bundles within the interventricular septum, leading to irreversible malignant arrhythmias such as conduction block. The quality of the surgery cannot be guaranteed, posing a significant threat and uncertainty to the patient's intraoperative and postoperative life safety.

[0003] Pulsed field ablation (PFA) is a novel non-thermal ablation method that uses a pulsed electric field as energy to act on the cell membrane, creating irreversible electroporation that disrupts its stability and causes cell death due to high permeability. Compared to other cells and tissues, cardiomyocytes are sensitive to pulsed field electroporation. However, for tissues with higher thresholds, the electroporation caused by the pulsed electric field is reversible. This characteristic allows for selective damage to the myocardium without harming surrounding tissues. The latest applications of pulsed field ablation in pulmonary vein isolation for atrial fibrillation have shown high efficiency, safety, and good tissue specificity. However, currently, there are no dedicated devices in China for the ablation treatment of hypertrophic obstructive cardiomyopathy using pulsed fields. By inventing a novel PFA device connected to a pulse generator and setting a threshold voltage, targeted ablation of hypertrophic cardiomyocytes can be achieved without damaging the conduction bundle. When the pulsed electric field intensity exceeds 375V / cm, it will cause nanoscale perforations in hypertrophic cardiomyocytes, leading to their destruction and reducing left ventricular outflow tract pressure, thus alleviating patient symptoms.

[0004] Pulsed field ablation (PFA) is widely used in clinical practice for treating atrial fibrillation and other arrhythmias because it does not cause damage to normal myocardial conduction bundles or related complications. However, PFA technology for treating arrhythmias and hypertrophic cardiomyopathy is relatively new. Currently, PFA devices are all used for pulmonary vein ablation of atrial fibrillation, and there are no dedicated devices for hypertrophic cardiomyopathy. The existing PFA device is the FaraWave atrial fibrillation ablation catheter, which is a braided six-petal shape. The end of the FaraWave atrial fibrillation ablation catheter is connected to a pulse therapy device. When using the FaraWave atrial fibrillation ablation catheter to treat patients with pulse field ablation, the catheter is inserted into the body through the femoral artery and finally punctures the interventricular septum to reach the location of abnormal myocardial fibrillation. The braided six-petal shape is unfolded and placed close to the hypertrophic area of ​​the interventricular septum for pulse field ablation. The ablation process does not damage normal myocardium.

[0005] Because traditional ablation catheter ablation procedures are extremely complex and require a high level of skill from patients, there is a significant knowledge gap regarding the use and operation of the instruments. As a result, there is currently little clinical application of pulsed field therapy for other types of heart disease. Therefore, it is difficult to widely promote and apply pulsed field therapy for hypertrophic cardiomyopathy. Summary of the Invention

[0006] In view of the above-mentioned technical problems and to overcome the shortcomings of the prior art, the present invention provides a special device for pulsed field ablation therapy of hypertrophic cardiomyopathy.

[0007] To address the above technical problems, this invention provides a specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy.

[0008] Technical Effects: By adjusting the treatment knobs of the first and second ablation catheters, the first and second catheters are driven to penetrate the interatrial septum, pass through the left atrium and mitral valve, and finally reach the left edge of the hypertrophic myocardium of the interventricular septum. The catheter at the end away from the interatrial septum passes through the tricuspid valve and reaches the right edge of the hypertrophic myocardium of the interventricular septum. At this point, by lifting the control button of the catheter ablation needle upward, the tip of the ablation catheter is pushed out, thereby performing treatment. The first and second catheters are sterilized when passing through the sterilization cannula. The water pump draws the sterilization solution and discharges it from the second water pipe to the nozzle, disinfecting the first and second catheters. They are then locally dried by the heating element and then wiped dry again by the modal fabric. While ensuring the safety, efficiency and prevention of contamination of the operation, the operation is simplified to the greatest extent. This invention is easy to operate and ensures the precise control of the ablation area and the full utilization of ablation energy during the operation, with high safety and effectiveness.

[0009] The further defined technical solution of the present invention is: a special device for pulsed field ablation therapy of hypertrophic cardiomyopathy, comprising a device body, a bracket detachably mounted at the bottom of the device body, an outer sheath control button in the middle of the device body, a first ablation catheter treatment knob, a second ablation catheter treatment knob and a catheter ablation needle control button arranged sequentially from left to right in the middle of the device body, a magnetic plate control button, a connecting sleeve and a sterilization sleeve arranged sequentially from right to left in the middle of the device body, a connecting rod fixedly arranged between the connecting sleeve and the sterilization sleeve, a first catheter and a second catheter arranged inside the sterilization sleeve, a first ablation needle inserted inside the first catheter, and a second ablation needle inserted inside the second catheter;

[0010] The winding assembly is installed on the connecting sleeve and is used to wind up the first conduit and the second conduit;

[0011] The sterilization component is located inside the sterilization sleeve and is used to sterilize the first and second catheters.

[0012] Furthermore, the winding assembly includes a first winding member and a second winding member symmetrically arranged on the connecting sleeve. The first winding member and the second winding member have the same structure. The first winding member includes a housing fixed on the connecting sleeve. A motor is detachably mounted on one side of the housing. A rotating shaft is rotatably connected to the motor. The end of the rotating shaft is inserted into the housing. A limiting seat for rotating the rotating shaft is fixedly provided inside the housing. A connecting wire is wound on the rotating shaft. A cylinder is detachably mounted on the other side of the housing. A second through hole for moving the cylinder is opened inside the housing. A limiting ring for moving the connecting wire is provided at the end of the cylinder. A first guide tube is detachably mounted on the first winding member. A second guide tube is detachably mounted on the second winding member.

[0013] Furthermore, two sets of clamping components with identical structures are symmetrically arranged at the bottom of the outer shell. The clamping components include a rotating ring rotatably connected to the surface of the outer shell, a horizontal shaft fixedly arranged inside the rotating ring, the horizontal shaft being inserted into the outer shell and a gear fixedly arranged on the horizontal shaft, a limiting block for the horizontal shaft to rotate fixedly arranged inside the outer shell, a sliding groove being opened inside the outer shell, a slider being horizontally slidably connected in the sliding groove, a sliding plate being provided at the end of the slider, and a toothed groove adapted to the gear being opened on the sliding plate.

[0014] Furthermore, a gasket is adhered to the side wall of the sliding plate, and the surface of the gasket is provided with protrusions.

[0015] Furthermore, the sterilization component includes a sterilization box located on one side of the instrument body and a receiving box located on the other side of the instrument body. A water pump is detachably installed inside the sterilization box. One end of the water pump is threadedly connected to a first water pipe, and the other end of the water pump is threadedly connected to a second water pipe. The end of the second water pipe passes through the top of the sterilization sleeve. A nozzle adapted to the second water pipe is installed inside the sterilization sleeve. A third water pipe is inserted into the bottom of the sterilization sleeve, and the end of the third water pipe is inserted into the receiving box.

[0016] Furthermore, the sterilization sleeve has a first arc-shaped limiting strip and a second arc-shaped limiting strip at both ends of the bottom, and a drainage groove is opened at the bottom of the sterilization sleeve, with a third water pipe installed in the drainage groove.

[0017] Furthermore, one end of the sterilization sleeve is provided with two sets of first limiting sleeves adapted to the first catheter and the second catheter, and the other end of the sterilization sleeve is provided with two sets of second limiting sleeves adapted to the first catheter and the second catheter.

[0018] Furthermore, the second limiting sleeve is provided with a ring-shaped array of highly elastic polyester fiber cloth, on which modal fabric is bonded, and the modal fabric has a first through hole adapted to the first conduit and the second conduit.

[0019] Furthermore, the sterilization box is equipped with a detachable fixing bracket for limiting the first water pipe.

[0020] Furthermore, a heating element is provided at the top of the sterilization sleeve, and a cavity is opened inside the sterilization sleeve. An arc-shaped frame is installed inside the cavity. An electric heating tube can be detachably installed at one end of the arc-shaped frame, and a temperature controller can be detachably installed at the other end of the arc-shaped frame. A heat-conducting plate is bonded inside the sterilization sleeve.

[0021] The beneficial effects of this invention are:

[0022] (1) In this invention, the novel pulse field therapy device adopts a dual-catheter push-pull release elastic circular radial magnetic suction design, which can ensure the precise positioning and control of the ablation area during pulse field ablation to the greatest extent, avoid the risk of ventricular septal rupture caused by repeated pulse field ablation of the same site, and ensure the precision and effectiveness of the ablation degree. When the dual catheters are deployed, they can automatically and tightly fit the left and right edges of the ventricular septum, getting rid of the situation where traditional ablation catheters need to be repeatedly operated in the direction of the catheter and pressure is applied to achieve tight fit. The pulse energy can be directly released to complete the precise ablation treatment of ventricular septal hypertrophic myocardium with nanoscale perforation. There is no need for secondary or repeated ablation, avoiding over-ablation or under-ablation. At the same time, it also avoids the problem that the end of the traditional single-end ablation catheter protrudes and cannot achieve complete tight fit between the device ablation area and the area of ​​the heart that needs to be ablated, and is extremely easy to cause rupture of normal myocardium. While ensuring the safety and efficiency of the operation, it also simplifies the operation to the greatest extent. This invention is easy to operate, which will be of great significance for the widespread application of pulse field ablation therapy for hypertrophic cardiomyopathy.

[0023] (2) In this invention, disinfectant is injected into the nozzle of the sterilization sleeve and the disinfectant is sprayed onto the surface of the first conduit and the second conduit. The residual liquid is discharged into the receiving box through the third water pipe at the drainage trough. The electric heating tube in the heating element is heated after being powered on and is conducted through the heat-conducting plate composed of a material with good thermal conductivity. The first conduit and the second conduit are dried after passing through the heat-conducting plate and then wiped dry when passing through the modal fabric, thereby injecting the first conduit and the second conduit into the body.

[0024] (3) In this invention, when it is necessary to retrieve the first catheter and the second catheter, a drive motor is used. The motor drives the rotating shaft. When the rotating shaft rotates, it winds up the connecting wire. The cylinder moves in the second through hole, thereby driving the limiting ring and making the connecting wire wind around the rotating shaft surface in sequence. The two sets of rotating rings are rotated. The rotating rings drive the horizontal shaft. The horizontal shaft drives the gear. The gear drives the sliding plate through the tooth groove. The slider on the sliding plate moves horizontally in the groove, thereby clamping the connecting wire with the sliding plate to prevent the connecting wire from shaking and causing the first catheter and the second catheter to fall off during treatment, thus affecting the treatment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of Example 1;

[0026] Figure 2 This is a structural diagram of the connecting sleeve and sterilization sleeve in Example 1;

[0027] Figure 3 This is a structural diagram of the interior of the first winding component in Example 1;

[0028] Figure 4 This is a structural diagram of the interior of the sterilization box in Example 1;

[0029] Figure 5 This is a structural diagram of the internal structure of the sterilization sleeve used in Example 1;

[0030] Figure 6 This is a structural diagram of the second limiting sleeve used in Example 1;

[0031] Figure 7 This is a structural diagram of the heating element used in Example 1.

[0032] The components include: 1. Instrument body; 11. Magnetic plate control button; 12. Outer sheath control button; 13. First ablation catheter treatment knob; 14. Second ablation catheter treatment knob; 15. Catheter ablation needle control button; 16. Connecting sleeve; 17. Connecting rod; 18. Sterilization sleeve; 2. Support; 3. Sterilization assembly; 301. Sterilization box; 302. Second water pipe; 303. Third water pipe; 304. Collection box; 305. Water pump; 306. First water pipe; 307. Fixing frame; 308. Nozzle; 309. First arc-shaped limiting strip; 310. Drainage trough; 311. Second arc-shaped limiting strip; 312. First limiting sleeve; 313. Second limiting sleeve; 314. High-elasticity polyester fiber cloth; 315. 316. Modal fabric; 32. First through hole; 32. Heating element; 321. Cavity; 322. Electric heating tube; 323. Arc frame; 324. Temperature controller; 325. Heat-conducting plate; 4. Rewinding assembly; 41. First rewinding piece; 42. Second rewinding piece; 401. Outer shell; 402. Motor; 403. Rotating ring; 404. Limiting seat; 405. Rotating shaft; 406. Second through hole; 407. Cylinder; 408. Limiting ring; 409. Connecting wire; 410. Slide groove; 411. Sliding plate; 412. Sliding block; 413. Limiting block; 414. Horizontal shaft; 415. Gear; 416. Tooth groove; 417. Gasket; 5. First conduit; 6. Second conduit; 7. First ablation needle; 8. Second ablation needle. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, a detailed description is provided below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0036] This embodiment provides a specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy, the structure of which is as follows: Figures 1 to 7 As shown, the device includes a main body 1, a bracket 2 detachably mounted at the bottom of the main body 1, an outer sheath control button 12 in the middle of the main body 1, a first ablation catheter treatment knob 13, a second ablation catheter treatment knob 14 and a catheter ablation needle control button 15 arranged sequentially from left to right in the middle of the main body 1, a magnetic plate control button 11, a connecting sleeve 16 and a sterilization sleeve 18 arranged sequentially from right to left in the middle of the main body 1, a connecting rod 17 fixedly arranged between the connecting sleeve 16 and the sterilization sleeve 18, and a first catheter 5 and a second catheter 6 arranged inside the sterilization sleeve 18. A first ablation needle 7 is inserted into the first catheter 5 and a second ablation needle 8 is inserted into the second catheter 6.

[0037] The winding assembly 4 is disposed on the connecting sleeve 16 and is used to wind up the first conduit 5 and the second conduit 6;

[0038] The sterilization component 3 is located inside the sterilization sleeve 18 and is used to sterilize the first conduit 5 and the second conduit 6.

[0039] The winding assembly 4 includes a first winding member 41 and a second winding member 42 symmetrically arranged on the connecting sleeve 16. The first winding member 41 and the second winding member 42 have the same structure. The first winding member 41 includes a housing 401 fixed on the connecting sleeve 16. A motor 402 is detachably mounted on the front of the housing 401. A rotating shaft 405 is rotatably connected to the motor 402. The end of the rotating shaft 405 is inserted into the housing 401. A limiting seat 404 for rotating the rotating shaft 405 is fixedly provided inside the housing 401. A connecting wire 409 is wound on the rotating shaft 405. A cylinder 407 is detachably mounted on the back of the housing 401. A second through hole 406 for moving the cylinder 407 is opened inside the housing 401. A limiting ring 408 for moving the connecting wire 409 is provided at the end of the cylinder 407. A first guide tube 5 is detachably mounted on the first winding member 41. A second guide tube 6 is detachably mounted on the second winding member 42.

[0040] Two sets of clamping members with identical structures are symmetrically arranged at the bottom of the outer casing 401. The clamping members include a rotating ring 403 rotatably connected to the surface of the outer casing 401. A horizontal shaft 414 is fixedly arranged inside the rotating ring 403. The horizontal shaft 414 is inserted into the outer casing 401 and a gear 415 is fixedly arranged on the horizontal shaft 414. A limiting block 413 for rotating the horizontal shaft 414 is fixedly arranged inside the outer casing 401. A sliding groove 410 is opened inside the outer casing 401. A slider 412 is horizontally slidably connected in the sliding groove 410. A sliding plate 411 is provided at the end of the slider 412. A toothed groove 416 adapted to the gear 415 is opened on the sliding plate 411.

[0041] A gasket 417 is bonded to the side wall of the sliding plate 411, and the surface of the gasket 417 is provided with protrusions.

[0042] The sterilization component 3 includes a sterilization box 301 located on the right side of the instrument body 1, a receiving box 304 located on the left side of the instrument body 1, a water pump 305 detachably installed inside the sterilization box 301, a first water pipe 306 threadedly connected to the right side of the water pump 305, a second water pipe 302 threadedly connected to the left side of the water pump 305, the end of the second water pipe 302 penetrating the top of the sterilization sleeve 18, a nozzle 308 adapted to the second water pipe 302 installed inside the sterilization sleeve 18, a third water pipe 303 inserted into the bottom of the sterilization sleeve 18, and the end of the third water pipe 303 inserted into the receiving box 304.

[0043] The sterilization sleeve 18 has a first arc-shaped limiting strip 309 and a second arc-shaped limiting strip 311 at both ends of the bottom. A drainage groove 310 is opened at the bottom of the sterilization sleeve 18, and a third water pipe 303 is set in the drainage groove 310.

[0044] Two sets of first limiting sleeves 312 adapted to the first conduit 5 and the second conduit 6 are provided on the right side of the sterilization sleeve 18, and two sets of second limiting sleeves 313 adapted to the first conduit 5 and the second conduit 6 are provided on the left side of the sterilization sleeve 18.

[0045] The second limiting sleeve 313 is provided with a ring-shaped array of high elastic polyester fiber cloth 314, and modal fabric 315 is bonded to the high elastic polyester fiber cloth 314. The modal fabric 315 is provided with a first through hole 316 that is compatible with the first conduit 5 and the second conduit 6.

[0046] The sterilization box 301 has a detachable fixing bracket 307 for limiting the first water pipe 306.

[0047] The sterilization sleeve 18 is provided with a heating element 32 at the top, and a cavity 321 is opened inside the sterilization sleeve 18. An arc-shaped frame 323 is provided inside the cavity 321. An electric heating tube 322 is detachably installed on the right end of the arc-shaped frame 323, and a thermostat 324 is detachably installed on the left end of the arc-shaped frame 323. A heat-conducting plate 325 is bonded inside the sterilization sleeve 18.

[0048] Working principle: The device body 1 can be used by connecting it to the pulse field therapy instrument. During the operation, the outer sheath is punctured through the left / right femoral vein and delivered to the right atrium by controlling the outer sheath control button 12. The direction of the first ablation treatment catheter treatment knob 13 can be controlled by clockwise and counterclockwise rotation. Clockwise rotation is right rear, left rear, left front, right front, and counterclockwise rotation is right rear, right front, left front, left rear. Pushing forward is forward, and pushing backward is bending. Releasing the first ablation treatment catheter treatment knob 13 will straighten the sheath. The control method of the subsequent second ablation treatment catheter treatment knob 14 is the same as that of the first ablation treatment catheter treatment knob 13.

[0049] When the first catheter 5 and the second catheter 6 reach the right atrium, adjusting the magnetic plate control button 11 extends the magnetic plate between the first catheter 5 and the second catheter 6, ensuring that the magnetic plate can be accurately inserted between the first catheter 5 and the second catheter 6. This effectively blocks the magnetic field, eliminating the magnetic force that tightly connects the first catheter 5 and the second catheter 6, at which point the first catheter 5 and the second catheter 6 separate. By adjusting the first ablation treatment catheter treatment knob 13 and the second ablation treatment catheter treatment knob 14, the first catheter 5 and the second catheter 6 respectively penetrate the interatrial septum and pass through the left atrium. The mitral valve eventually reaches the left edge of the hypertrophic myocardium of the interventricular septum. The catheter, located away from the atrial septum, reaches the right edge of the hypertrophic myocardium of the interventricular septum via the tricuspid valve. At this point, by lifting the control button 15 of the ablation needle, the first ablation needle 7 and the second ablation needle 8 are extended. The pressure on the tail ends of the first and second ablation needles 7 and 8, which were previously close together, disappears, and the first and second ablation needles 7 and 8 return to their upright and tightly fitted state. The first ablation treatment catheter treatment knob 13 and the second ablation treatment catheter treatment knob 14 are then pushed downwards. Pulling back into the first catheter 5 and the second catheter 6, the first ablation needle 7 and the second ablation needle 8 employ a magnetic attraction design. When the ablation treatment device area is fully deployed, the first catheter 5 and the second catheter 6 automatically and tightly adhere to the left and right edges of the interventricular septum. That is, the first ablation needle 7 and the second ablation needle 8 are tightly adhered to the hypertrophic myocardium at the left and right edges of the interventricular septum. Pushing the catheter ablation needle control button 15 forward will move the circular nut at the connection between the first catheter 5 and the second catheter 6 forward, restoring the upright first ablation needle 7 and the second ablation needle 8 to parallel with the first catheter 5 and the second catheter 6. In this state, move the first catheter 5 and the second catheter 6 to the designated position, and pull the catheter ablation needle control button 15 backward to complete the retraction of the circular nut. The first ablation needle 7 and the second ablation needle 8 will return to the unfolded state. When the operation is over and the needles are retracted, push the catheter ablation needle control button 15 downward to push out the tips of the first ablation needle 7 and the second ablation needle 8. Then push the catheter ablation needle control button 15 forward to restore the first ablation needle 7 and the second ablation needle 8 to the parallel state with the first catheter 5 and the second catheter 6. Then retract the first catheter 5 and the second catheter 6.

[0050] When the first conduit 5 and the second conduit 6 move within the sterilization sleeve 18, the first limiting sleeve 312 and the second limiting sleeve 313 limit the first conduit 5 and the second conduit 6, driving the water pump 305. The first water pipe 306 draws disinfectant water from within the first water pipe 306 and discharges it from the second water pipe 302 to the nozzle 308. The nozzle 308 discharges disinfectant water onto the surface of the first conduit 5 and the second conduit 6. The fixed bracket 307 limits the first water pipe 306 to prevent the end of the first water pipe 306 from shaking when drawing disinfectant water, thus affecting the first water pipe 306's ability to draw disinfectant water from the sterilization box 301. The remaining disinfectant water slides to the bottom of the sterilization sleeve 18 and enters the drain trough 310, then is discharged into the collection box 304 through the third water pipe 303. The first arc-shaped limiting strip 309 and the second arc-shaped limiting strip 311 limit the remaining disinfectant water. Disinfectant is blocked to prevent it from overflowing from both ends of the sterilization sleeve 18. When the first conduit 5 and the second conduit 6 move to the heat-conducting plate 325, the electric heating tube 322 is energized and heats the heating wire, converting electrical energy into heat energy. The temperature controller 324 controls the heating range of the electric heating tube 322. The heat energy is transferred to the heat-conducting plate 325, which is a copper metal plate, to dry the first conduit 5 and the second conduit 6. When the first conduit 5 and the second conduit 6 pass through the second limiting sleeve 313, they pass through the first through hole 316 of the modal fabric 315. The modal fabric 315 itself has an adsorption effect on liquid. When it comes into contact with the surface of the first conduit 5 and the second conduit 6, the disinfectant will be attracted by the modal fabric 315 and leave the surface of the first conduit 5 and the second conduit 6, thus drying the disinfectant in the first conduit 5 and the second conduit 6 and allowing it to enter the patient's body.

[0051] When it is necessary to retract the first conduit 5 and the second conduit 6, the drive motor 402 rotates, driving the rotating shaft 405. The rotating shaft 405 rotates within the limiting seat 404, thereby winding up the connected wire 409. The cylinder 407 drives the limiting ring 408. When the limiting ring 408 moves horizontally, it drives the connected wire 409 to move horizontally on the rotating shaft 405, facilitating the arrangement of the connected wire 409 when it is wound on the rotating shaft 405. The two sets of rotating rings 403 rotate, driving the horizontal shaft 4... 14. The horizontal shaft 414 rotates within the limiting block 413. The horizontal shaft 414 drives the gear 415. The gear 415 drives the sliding plate 411 through the tooth groove 416. The sliding plate 411 drives the slider 412. The slider 412 moves horizontally within the slide groove 410. When the sliding plate 411 moves horizontally, it squeezes the connecting line 409 to prevent the connecting line 409 from moving. The provided gasket 417 protects the connecting line 409 to prevent damage to the connecting line 409 caused by squeezing. The connecting line 409 drives the first conduit 5 and the second conduit 6 to retract.

[0052] In addition to the embodiments described above, the present invention may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by the present invention.

Claims

1. A special instrument for the treatment of hypertrophic cardiomyopathy by pulsed field ablation, comprising an instrument body (1), characterized in that: The device body (1) has a bracket (2) detachably installed at the bottom. The device body (1) has an outer sheath control button (12) in the middle. The device body (1) has a first ablation treatment catheter treatment knob (13), a second ablation treatment catheter treatment knob (14) and a catheter ablation needle control button (15) in the middle from left to right. The device body (1) has a magnetic plate control button (11), a connecting sleeve (16) and a sterilization sleeve (18) in the middle from right to left. A connecting rod (17) is fixed between the connecting sleeve (16) and the sterilization sleeve (18). The sterilization sleeve (18) has a first catheter (5) and a second catheter (6) inside. The first catheter (5) has a first ablation needle (7) inserted inside. The second catheter (6) has a second ablation needle (8) inserted inside. The winding assembly (4) is installed on the connecting sleeve (16) and is used to wind up the first conduit (5) and the second conduit (6); The sterilization component (3) is located inside the sterilization sleeve (18) and is used to sterilize the first conduit (5) and the second conduit (6).

2. The device as claimed in claim 1, wherein: The winding assembly (4) includes a first winding member (41) and a second winding member (42) symmetrically arranged on the connecting sleeve (16). The first winding member (41) and the second winding member (42) have the same structure. The first winding member (41) includes a housing (401) fixed on the connecting sleeve (16). A motor (402) is detachably mounted on one side of the housing (401). A rotating shaft (405) is rotatably connected to the motor (402). The end of the rotating shaft (405) is inserted into the housing (401). The housing (401) is fixed inside. A limiting seat (404) is provided for the rotation of the rotating shaft (405). A connecting wire (409) is wound on the rotating shaft (405). A cylinder (407) is detachably installed on the other side of the outer shell (401). A second through hole (406) for the cylinder (407) to move is opened in the outer shell (401). A limiting ring (408) for the connecting wire (409) to move is provided at the end of the cylinder (407). A first guide tube (5) is detachably installed on the first winding member (41). A second guide tube (6) is detachably installed on the second winding member (42).

3. A device for pulsed field ablation treatment of hypertrophic cardiomyopathy according to claim 2, characterized in that: The bottom of the outer shell (401) is symmetrically provided with two sets of clamping members with the same structure. The clamping members include a rotating ring (403) rotatably connected to the surface of the outer shell (401). A horizontal shaft (414) is fixedly provided inside the rotating ring (403). The horizontal shaft (414) is inserted into the outer shell (401) and a gear (415) is fixedly provided on the horizontal shaft (414). A limiting block (413) for rotating the horizontal shaft (414) is fixedly provided inside the outer shell (401). A sliding groove (410) is provided inside the outer shell (401). A slider (412) is horizontally slidably connected inside the sliding groove (410). A sliding plate (411) is provided at the end of the slider (412). A toothed groove (416) adapted to the gear (415) is provided on the sliding plate (411).

4. A specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy according to claim 3, characterized in that: A gasket (417) is bonded to the side wall of the sliding plate (411), and the surface of the gasket (417) is provided with protrusions.

5. A specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy according to claim 1, characterized in that: The sterilization component (3) includes a sterilization box (301) disposed on one side of the instrument body (1) and a receiving box (304) disposed on the other side of the instrument body (1). A water pump (305) is detachably installed inside the sterilization box (301). One end of the water pump (305) is threadedly connected to a first water pipe (306), and the other end of the water pump (305) is threadedly connected to a second water pipe (302). The end of the second water pipe (302) penetrates the top of the sterilization sleeve (18). A nozzle (308) adapted to the second water pipe (302) is installed inside the sterilization sleeve (18). A third water pipe (303) is inserted into the bottom of the sterilization sleeve (18), and the end of the third water pipe (303) is inserted into the receiving box (304).

6. A specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy according to claim 5, characterized in that: The sterilization sleeve (18) has a first arc-shaped limiting strip (309) and a second arc-shaped limiting strip (311) respectively at the two ends of the bottom. The sterilization sleeve (18) has a drainage groove (310) at the bottom. The third water pipe (303) is installed in the drainage groove (310).

7. A specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy according to claim 6, characterized in that: The sterilization sleeve (18) has two sets of first limiting sleeves (312) at one end that are adapted to the first conduit (5) and the second conduit (6), and two sets of second limiting sleeves (313) at the other end that are adapted to the first conduit (5) and the second conduit (6).

8. A specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy according to claim 7, characterized in that: The second limiting sleeve (313) is provided with a ring-shaped array of high elastic polyester fiber cloth (314), and modal fabric (315) is bonded to the high elastic polyester fiber cloth (314). The modal fabric (315) is provided with a first through hole (316) that is compatible with the first conduit (5) and the second conduit (6).

9. A specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy according to claim 1, characterized in that: The sterilization box (301) has a detachable fixing frame (307) for limiting the first water pipe (306).

10. A specialized device for pulsed field ablation therapy of hypertrophic cardiomyopathy according to claim 5, characterized in that: The sterilization sleeve (18) is provided with a heating element (32) at the top. The sterilization sleeve (18) has a cavity (321) inside. An arc-shaped frame (323) is provided inside the cavity (321). An electric heating tube (322) is detachably installed at one end of the arc-shaped frame (323). A temperature controller (324) is detachably installed at the other end of the arc-shaped frame (323). A heat-conducting plate (325) is bonded inside the sterilization sleeve (18).

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