189 results about "Rf ablation" patented technology

The invention provides a radiofrequency ablation system based on multi-source data, and relates to the technical field of medical instruments, and the system comprises an ablation area judgment device which is used for judging whether an operation target meets the ablation requirement or not according to a real-time ultrasonic image of the operation target; the data processing device is used for determining an ablation strategy of an ablation area of the operation target according to the real-time electrocardiogram data and the real-time vital sign data of the operation target in combination with a preset radiofrequency ablation working mode when the operation target meets the ablation requirement; the radio frequency energy generating device is used for generating corresponding radio frequency energy according to the ablation strategy; and the ablation device is used for performing ablation operation according to the radio frequency energy action. By integrating multi-source data such as real-time ultrasonic images, electrocardiogram monitoring and vital sign monitoring, accurate judgment of ablation requirements, dynamic adjustment of ablation strategies and accurate output of ablation energy are achieved, and the safety, accuracy and curative effect of cardiac radiofrequency ablation treatment are improved.

The invention relates to the technical field of medical image processing and three-dimensional reconstruction, and particularly discloses a reconstruction and analogue simulation method based on a cardiac image. The method comprises the following steps: firstly, preprocessing an input CT or MRI medical image, and automatically segmenting a heart multi-tissue structure by using an nnUNetv2 model, including a plurality of anatomical regions such as atrium, ventricle, myocardial tissue and blood pool; and then performing topology repair, smoothing processing and label resampling on the segmentation result to obtain a three-dimensional label body with a continuous structure and a complete boundary. And based on the optimized tag body, constructing a heart three-dimensional surface model by adopting a Marching Cubes algorithm, and generating a multi-material volume grid suitable for finite element analysis. According to an electrode position and a radio frequency parameter set by a user, a radio frequency ablation simulation model based on a Pennes biological heat conduction equation and an Arrhenius model is established, a temperature field and a tissue thermal damage range are calculated, and a simulation result is displayed in a three-dimensional mode in an overlapping mode. According to the method, the integrated process from medical image automatic segmentation to heart three-dimensional reconstruction and thermal simulation is realized, the segmentation precision, the modeling efficiency and the simulation reliability are improved, and the method can be applied to application scenes such as surgical planning, preoperative evaluation and medical teaching.

The invention discloses a bending-adjustable endoscope type liver cutting radiofrequency ablation electrode, and relates to the technical field of medical apparatuses and instruments. The device comprises a handle, the top of the handle is provided with a depth adjusting block, one side of the handle is provided with a trigger, the top of the trigger is provided with an extension rod, one side of the extension rod is fixedly connected with an adjustable bent pipe, and one side of the adjustable bent pipe is provided with a cutting electrode. Through the design of the adjustable bent pipe and the snake bone cutting structure, the front end of the instrument can realize multi-angle flexible bending, the surgical operation range is obviously expanded, the instrument is particularly suitable for areas such as the back of the liver which are difficult to directly touch, dependence on other auxiliary instruments is reduced, the flexibility and operability of the surgery are improved, and the surgical efficiency is improved. The depth limiting head is linked with the trigger, and the seven-gear design of the depth adjusting block is matched, so that the depth of the cutting electrode penetrating into the liver can be accurately controlled, excessive puncture or insufficient ablation is avoided, and the safety and effectiveness of an operation are improved.

The invention provides a radiofrequency ablation instrument for treating heart diseases, and relates to the technical field of medical equipment. The radiofrequency ablatometer comprises a man-machine interaction device, a data processing device, a radiofrequency energy generating device, an ablation device, an ablation parameter acquisition device, a twelve-lead ECG signal acquisition device, an ultrasonic image acquisition device, a vital sign monitoring acquisition device and a circulating cooling device which are respectively connected with the radiofrequency energy generating device and the ablation device, the cooling device is used for supplying cooling liquid to the ablation device; the data processing device controls power output of the radio frequency energy generating device according to the twelve-lead ECG signals and ablation parameters, and the man-machine interaction device displays ultrasonic images, vital sign parameters and ECG data. According to the invention, concentrated display and linkage analysis of ultrasonic images, twelve-lead ECG signals and vital sign parameters are realized for the first time, and the device can be widely applied to percutaneous intracardiac radiofrequency ablation treatment of hypertrophic cardiomyopathy, cardiac tumor and other diseases, and has extremely high clinical application value.

The utility model discloses an ophthalmology radiofrequency ablation training model which is used for assisting an ophthalmology radiofrequency ablation electrode used in cooperation with an ophthalmology radiofrequency ablation instrument in simulated puncture training on eyeballs, and the ophthalmology radiofrequency ablation electrode is provided with an electrode needle and an impedance detection unit electrically connected with the electrode needle. The ophthalmology radiofrequency ablation training model comprises a base and an eyeball model, wherein the eyeball model comprises a simulated sclera structure, a simulated ciliary body structure and simulated aqueous humor; the simulated sclera structure and the simulated ciliary body structure are made of conductive materials, the simulated sclera structure has a first impedance range, the simulated ciliary body structure has a second impedance range, and the simulated aqueous humor has a third impedance range; when the needle point of the electrode needle pierces into the simulated sclera structure, the simulated ciliary body structure and the simulated aqueous humor, the impedance detection unit can feed back an impedance value, and an operator can judge whether the piercing position and the piercing depth meet requirements or not according to the impedance value.

Various embodiments of the invention provide binding agents for glypican-3 (GPC3), including antibodies or antigen-binding fragments thereof that bind to GPC3 and antigen recognizing receptors (e.g., CARs) that target GPC3 including cells that express GPC3. Embodiments of the i n vention also provide cells comprising such binding agents such as CAR T-cells, therapeutic compositions comprising such cells and methods of using one or more of the binding agents, cells or therapeutic compositions for the treatment of diseases or disorders associated with GPC3 expression such as various neoplastic diseases or disorders (e.g., hepatocellular carcinoma). Various embodiments of the invention also provide methods and systems for treati ng hepatocellular carcinoma (HCC) utilizing a combi nation of radiofrequency (RF) ablation and GPC3-targeted cell therapy. In certain embodiments, immune modulators, such as checkpoint inhibitors, may be co-administered to potentiate immune responses. Additionally, compositions and kits comprising RF ablation devices and GPC3-targeted cell therapy formulations are provided.

This application relates to the field of medical devices and discloses a needle withdrawal system for radiofrequency ablation devices that avoids scarring. Based on a standard radiofrequency ablation device, the system integrates a needle position detection device (real-time monitoring of depth and speed) and a needle tip temperature sensor. During needle withdrawal, the radiofrequency power is dynamically adjusted according to the withdrawal speed (higher power for faster speed); when the needle tip depth is less than a predetermined threshold (close to the body surface), the radiofrequency output is automatically stopped and a prompt to wait for cooling occurs; once the temperature drops below a safe threshold, a prompt indicates that the needle can be completely withdrawn. Through this closed-loop control, the thermal coagulation and end-point cooling processes of the needle track are precisely managed, effectively preventing thermal damage to the skin and subcutaneous tissue and significantly reducing scar formation.

The utility model discloses a radiofrequency ablation electrode for infant laryngeal airway microsurgery, and belongs to the technical field of radiofrequency ablation electrodes, the radiofrequency ablation electrode for infant laryngeal airway microsurgery comprises a handle shell, a telescopic mechanism is arranged in the handle shell, the interior of the telescopic mechanism is fixedly connected with a sleeve, and the sleeve is fixedly connected with the handle shell. An electrode stem and a smoke tube are arranged in the sleeve, the other end of the smoke tube is connected with a hose, and the other end of the electrode stem is fixedly connected with an electrode needle. The telescopic mechanism is designed to control the electrode rod to stretch out and draw back, the electrode needle head is designed to be bent, a doctor can conveniently observe and position a target spot during an operation, the smoke tube is designed to solve the problem of mist generated during tissue electric resection during the operation, the mist generated during the operation is sucked away through the smoke tube by being connected with a negative pressure tube of a hospital, and the operation is convenient. The interference of smoke on the sight of a doctor is avoided, the use is very convenient, and medical personnel can be helped to perform an operation better.

A medical device includes an elongate member and one or more expandable elements positioned on the elongate member, the one or more expandable elements being configured to expand radially outward from the elongate member. The one or more expandable elements have inner surfaces facing the elongate member and outer surfaces opposite the inner surfaces. At least a portion of the one or more expandable elements provide a radiofrequency ablation electrode. A set of temperature sensors is attached to the inner surfaces of at least one of the one or more expandable elements, or on a flexible circuit surrounding at least a portion of the outer surfaces of the one or more expandable elements.

A radiofrequency ablation catheter (100) and a radiofrequency ablation device. The radiofrequency ablation catheter (100) comprises a radially contractible and expandable electrode stent (20), a connecting tube (30), and a core wire (40). The proximal end of the connecting tube (30) is connected to the distal end of the electrode stent (20), and the connecting tube (30) has a first lumen (34) running through the proximal and distal ends thereof. The core wire (40) movably runs through the electrode stent (20) and the first lumen (34). The core wire (40) is provided with a first limiting portion (41), the first limiting portion (41) being located in the first lumen (34); and the inner wall of the first lumen (34) is correspondingly provided with a second limiting portion (35). When the first limiting portion (41) abuts against the second limiting portion (35) and the central wire (40) moves from the distal end to the proximal end, the electrode stent (20) is switched from a contracted state to an expanded state. The radiofrequency ablation catheter (100) can reduce the risk of vascular injury, improve the accuracy of the core wire (40) in accessing a target branch vessel, and thus improve the ablation efficiency of radiofrequency ablation.

Systems and methods for cardiac radiofrequency ablation treatment planning are disclosed. In some examples, a computing device receives image volume and dose matrix data. The computing device generates a first mesh of an organ substructure for an organ based on a substructure contour of the organ. Further, the computing device generates a second mesh of an isodose volume based on the dose matrix data. The computing device displays the first mesh of the organ substructure and the second mesh of the isodose volume within the same scene. In some examples, the computing device samples a plurality of dose values, determines a representative dose value for each of a plurality of points along a surface of the dose matrix, and generates an image for display based on the representative dose value. In some examples, a segmentation model is generated for display based on the representative dose value.

A method for treatment of volume of interest (VOI), for example tumor, comprising a device for application of therapy in multi sites in a pre-defined volumetric array through a single needle insertion into the body. Therapies applied by this method include injection of therapeutic agents, including cytotoxic, immunologic and biologic drugs or drug combinations; radioactive substances; thermal ablation including radiofrequency ablation, microwave ablation, or cryoablation. The method addresses the problem of inadequate distribution of therapy throughout the VOI through a single needle insertion.

The application provides a multipurpose electrode for positioning, guiding and puncturing, comprising a mapping electrode head, a bending sheath, a magnetic positioning sensor, a mapping tube electrode, a mapping tube, a handle and a guide wire; wherein the mapping tube is a multi-cavity tube, comprising a signal line cavity, a magnetic sensor cable cavity and a bending sheath cavity for the bending sheath; the guide wire is arranged in the bending sheath, the mapping electrode head is arranged at one end of the mapping tube, the handle is connected to the other end of the mapping tube, two mapping tube electrodes are arranged on the mapping tube, and the magnetic positioning sensor is arranged between the two mapping tube electrodes; the application integrates many functions such as electromagnetic positioning, endocardial potential mapping, electrical excitation sequence mapping, excitation time slot mapping, accurate positioning of the catheter head end region, point radio frequency ablation and guide wire delivery. One catheter can be used in many different surgical procedures and scenes.

A power generator is disclosed for generating ablating energy deliverable to a catheter for treatment of heart rhythm disorders. The power generator includes a first output port configured to deliver ablation energy through a first conductive wire of a catheter and a second output port configured to receive a sensing signal from a thermocouple junction formed at a catheter electrode. The generator includes a first power driver for producing waveforms suitable for radiofrequency ablation (RFA) and a second power driver for generating pulsed waveforms suitable for pulsed field ablation (PFA). A switching circuit selectively couples one of the power drivers to the first output port based on a selected ablation modality. A control circuit receives an input indicating the selected modality and controls the switching circuit accordingly. The system enables dual-modality ablation using a shared catheter interface, facilitating seamless transition between RFA and PFA without requiring hardware reconfiguration.

The utility model provides a radiofrequency ablation catheter and a radiofrequency ablation system. The radiofrequency ablation catheter comprises a balloon, an inner tube, a guide wire tube, an outer sleeve and a radiofrequency electrode, the near end of the balloon is provided with a near-side tube section extending along the longitudinal axis of the balloon; the inner tube is provided with an inflation cavity and a guide wire tube penetrating cavity which are not communicated with each other, the far end of the inner tube is inserted into the near-side tube section, the inner tube is in sealed connection with the near-side tube section, and the far end of the inflation cavity is communicated with an inner cavity of the balloon; the far section part of the guide wire tube extends out of the far end of the guide wire tube penetrating cavity and extends to an inner cavity of the balloon, and the guide wire tube is in sealed connection with the guide wire tube penetrating cavity; the outer sleeve is arranged outside the inner tube in a sleeving mode, the far end of the outer sleeve is connected with the near-side tube section, a gap is formed in the joint, and a threading cavity between the outer sleeve and the inner tube is used for containing a cable; the radio frequency electrode is provided with a far-side ablation area and a near-side wiring area connected with the cable, extends to the gap from the near-side wiring area to the far-side ablation area along the threading cavity, penetrates out of the gap and then is attached to the surface of the near-side pipe section to extend to the outer surface of the balloon.

A radiofrequency ablation electrode probe includes a shaft extending from a hub and defining at least one lumen. A lead wire is disposed within the lumen, and at least one emitter is coupled to the lead wire. The emitter is coupled to a flexible distal portion of the shaft, such as by a swaging process. The emitter includes a slotted portion defining a slot sized such that swaging the emitter into the flexible distal portion deforms the conductive material. The emitter can include a slotted portion and end portions, and the lead wire can be secured to one of the end portions by a laser welding process. The slots can have a slot pitch within a range of 0.150 to 0.400 millimeters. The slots can be circumferentially arranged with a cut angle within a range of 50 to 90 degrees. A method of manufacturing the electrode probe is also disclosed.

The utility model discloses a vein closure radiofrequency ablation component, including handle, catheter and ablation electrode that connect in proper order, the ablation electrode is provided at the front end of catheter, the rear end of catheter extends to handle rear end and is connected with joint, the inside of catheter is hollow structure, joint and the inside of catheter are communicated and are used for the leading wire to pass through before the operation. The ablation electrode is reliable in structure, simple in structure, stable, reliable and convenient to operate, normal saline is instilled to the ablation electrode in an operation to conduct the electrode tip and the outer tube, low-temperature plasma is generated under excitation of radio-frequency current to ablate varicose blood vessels, meanwhile, the high-resistance metal electrode tip is powered on to emit heat, the blood vessels are secondarily heated, and the ablation effect of the high-resistance metal electrode tip is improved. Compared with a coil type catheter, the ablation temperature is not too high, the ablation range is relatively small, tissues are not prone to adhesion, and the vein ablation closing effect is improved.

A device for carrying out arthroscopic operations on the knee joints. The device includes handle, a proximal axial rotation control, and a distal linear movement control, a drainage tube and a power cable are connected to the proximal end, and extending from the distal end is an inner tube having an opening into which an electrode loop is inserted, and further having an aspiration opening oriented into a drainage channel.

The invention discloses a system for radiofrequency ablation renal sympathetic nerve removal and nerve excitability measurement, and relates to the technical field of medical instruments. The device comprises a control handle, the end of the control handle is connected with a guide pipe, the free end of the guide pipe is connected with a bent section, and the upper portion of the control handle is rotationally connected with an adjusting handle; the ablation monitoring unit is connected to the tail end of the control handle through a cable and used for monitoring and controlling the ablation temperature; and the nerve excitability monitoring unit is connected to the bottom end of the control handle through a cable and is used for monitoring nerve excitability. By adopting a mode of combining temperature sensor acquisition and nerve excitability monitoring, real-time and visual nerve excitability change feedback and temperature feedback are provided for doctors, the ablation effect is accurately judged in an assisted manner, and the operation flexibility and safety are improved.

This invention discloses a positionable bipolar radiofrequency ablation electrode, relating to the field of medical device technology. It includes a handheld end with an electrode needle at its bottom. A hollow screw is disposed within the inner cavity of the handheld end. A partition is rotatably connected to the surface of the hollow screw and fixedly connected to the inner wall of the handheld end. A threaded seat is threadedly connected to the bottom of the hollow screw. A hollow tube communicates with the bottom of the threaded seat and is fixedly connected to the electrode needle. A first driving component is disposed on one side of the threaded seat. A second driving component allows for flexible adjustment of the distance between the second electrode and the electrode needle, expanding the ablation range. The first driving component allows for flexible adjustment of the extension and retraction length of the electrode needle, adapting to lesions of different depths. Simultaneously, the adsorption component efficiently adsorbs accumulated fluid and gas generated during the ablation process, with the adsorption range expanding synchronously with the ablation range, ensuring that accumulated fluid and gas in different ablation areas are completely discharged, maintaining the stability of the local thermal field.

The invention discloses a hepatic artery radiofrequency ablation method and ablation catheter. The ablation method comprises the steps that a target puncture point is positioned, and a radial artery puncture channel and an interventional ablation environment are established; guiding an ablation catheter to enter a target treatment point corresponding to the target artery branch; adjusting the end shape of the ablation section tube; the ablation catheter comprises an ablation section, a conveying section, a connecting section and a signal section. The catheter is inserted through a vascular intracavity path, penetrates into the hepatic artery or a near-end branch of the hepatic artery, targets autonomic nerves around the hepatic artery to carry out temperature control type radiofrequency ablation, and has the advantages of accurate positioning, safe control, uniformity of energy release and tissue adaptability; by adjusting the fitting posture of the spiral structure of the ablation section and adapting to the characteristic parameters such as the curvature direction, the tortuosity and the opening angle of the hepatic artery, it is ensured that the metal electrode can be effectively fitted with the tube wall to transmit radio frequency energy, meanwhile, the punching rate is reduced, liver parenchyma puncture injury is avoided, and meanwhile systemic intervention such as blood pressure regulation and metabolic function regulation is achieved.

To address such a problem that in radiofrequency ablation surgery, although it is possible to identify a cancerous area using a CT device before surgery, when the cancerous area is small, it is difficult for a surgeon to determine a puncture position of a radiofrequency ablation probe, and to provide a patch for determining a position of foreign objects inside a patient's body, a lesion area and an affected area on a body surface.SOLUTION: When using a CT device, a patch with a plate-shaped radiopaque material is used during internal diagnostic X-ray imaging to mark a position on a body surface, the radiopaque material having a plurality of cutouts C1, C3 and C5 within a radiopaque material x range. A surgical procedure of a surgeon is facilitated by specifying a surgical position in an X-ray irradiation direction from an X-ray image, on the body surface of a patient. The captured CT image shows the affected area and the radiopaque material simultaneously, so that a puncture position of a tip of the radiofrequency ablation probe can be easily determined by a positional relation between the affected part and the X-ray patch, thus facilitating the procedure and improving the treatment efficacy. The patch can be used in diagnosis using both general-purpose X-ray equipment and CT equipment.SELECTED DRAWING: Figure 1

The invention provides a radiofrequency ablation fixing device based on information data, which comprises a radiofrequency needle arranged in a radiofrequency assembly, a hollow round frame arranged on the radiofrequency needle, a fixing assembly arranged on the hollow round frame, and the fixing assembly comprises three first telescopic rods and a second telescopic rod, fixing rods are rotationally installed on the two sides of one end of each first telescopic rod and the two sides of one end of each second telescopic rod, a tough elastic rope is rotationally connected to the middle of each first telescopic rod and the middle of each second telescopic rod in each set, and compression straight groove blocks are arranged on the first telescopic rods and the second telescopic rods in each set. The device has the advantages that the patient is prevented from moving disorderly, the position of the radio frequency needle is prevented from being changed when the patient moves disorderly, and therefore the radio frequency needle does not need to be inserted repeatedly.

The application provides an ablation device and a radio frequency ablation equipment, the ablation device comprises a first electrode assembly with a first electrode tip, the first electrode tip comprises a first protective sheath and a plurality of first electrodes arranged on the first protective sheath; and the first protective sheath is in a strip shape, and the plurality of first electrodes are arranged at intervals along the extension direction of the first protective sheath; that is, the plurality of first electrodes simultaneously act on the corresponding tissues to form an integral ablation line, so that a good ablation effect is realized, and the ablation efficiency is improved; it can be seen that the ablation device can solve the problem of the unsatisfactory ablation effect of the ablation device in the prior art.

The invention discloses a multi-sensor joint feedback radiofrequency ablation morphology prediction system, and relates to the technical field of radiofrequency ablation minimally invasive therapy, and the system specifically comprises an ablation signal collection module which processes a signal through a distributed temperature sensor and an impedance detection path and through low-pass filtering and moving average processing; reconstructing a continuous and smooth tissue temperature field from the discrete temperature data; the core parameter calculation module is used for calculating core state parameters based on the temperature field and impedance data, setting a dynamic carbonization threshold value and a carbonization risk index, constructing a real-time necrosis degree index, presenting a necrosis area through a thermodynamic diagram and defining an ablation front edge; and the power self-adaptive closed-loop regulation and control module is used for predicting tissue state change, solving optimal test power through a target optimization function, adding carbonization risk constraint and power boundary limitation, dynamically adjusting output power, periodically updating tissue state data and repeating the whole process to form a closed loop so as to realize self-adaptive regulation and control of the ablation process.

The application relates to a radiofrequency ablation system and a radiofrequency ablation clamp for renal sympathetic denervation, which comprises an upper jaw and a lower jaw that can be opened and closed relative to each other, the upper jaw is provided with upper jaw radiofrequency electrodes, the lower jaw is provided with lower jaw radiofrequency electrodes, the lower jaw comprises a lower jaw main body in an arc structure with an axis extending along a left-right direction, a lower electrode seat made of insulating material corresponding to each lower jaw radiofrequency electrode is movably arranged on the lower jaw main body in a circumferential direction, each lower jaw radiofrequency electrode is fixed on the corresponding lower electrode seat, the upper jaw radiofrequency electrodes are at least three, each upper jaw radiofrequency electrode is arranged in a left-right direction at intervals, the lower jaw radiofrequency electrodes are at least three, each lower jaw radiofrequency electrode is arranged in a left-right direction at intervals, and the radiofrequency ablation clamp further comprises an electrode seat driving mechanism for driving the circumferential movement of the corresponding upper electrode seat and lower electrode seat. The purpose of the application is to provide a radiofrequency ablation system capable of retaining part of parasympathetic nerves and a radiofrequency ablation clamp used in the radiofrequency ablation system.

The invention discloses a magnetic positioning accurate temperature control ablation catheter device for atrial fibrillation radiofrequency ablation, and relates to the technical field of atrial fibrillation radiofrequency ablation. According to the catheter device, the magnetic sensing assembly is arranged, magnetoresistive sensors and a central miniature permanent magnet which are evenly distributed on the circumference are adopted, three-dimensional accurate positioning is achieved in combination with an in-vitro magnetic field, positioning deviation caused by cardiac pulsation is reduced or eliminated, a plurality of miniature thermocouples cover the hemispherical end, and the annular perfusion hole channel, full-dimensional temperature control and uniform cooling are matched; five cavities of the main body section independently avoid winding, a nickel-titanium spring and a double-layer woven wire of the bendable section give consideration to bendability and stability, a core component is made of a biocompatible material, thrombus and allergy risks are reduced, and the device is adaptive to existing equipment and is convenient and durable to operate and control.

The utility model relates to a medical power instrument, and belongs to the technical field of medical instruments. The medical power instrument comprises a camera shooting mechanism and a surgical instrument, the camera shooting mechanism comprises a positioning clamping sleeve and an electron mirror, a rod-shaped part of the surgical instrument penetrates through the positioning clamping sleeve and extends out of the front end of the positioning clamping sleeve, and the electron mirror is movably arranged on the outer side of the front end of the positioning clamping sleeve and can change the surgical field. According to the medical power instrument, the camera shooting mechanism and the surgical instrument can be integrated into a whole, the medical power instrument can stretch into the body of a patient through one hole site, the camera shooting mechanism can play a role in camera shooting, a surgical field is provided for a doctor, and the doctor can adjust the position of the surgical instrument in time according to a returned image; the surgical instrument can achieve corresponding functions such as radiofrequency ablation, planing and grinding, can reduce the number of trepanning parts of the surgery, and is beneficial to recovery of a patient.

This invention relates to the field of radiofrequency ablation power control and neurological safety monitoring technology, specifically a data processing system based on dynamic adjustment of radiofrequency plasma power. The system includes: a data acquisition module for real-time acquisition of multimodal input data streams, including instantaneous radiofrequency power, tissue impedance, local tissue surface temperature, and raw signal amplitudes from intraoperative neurophysiological monitoring; an interference identification module for determining interference identification markers; a thermal load estimation module for iteratively estimating the latent thermal load index; a safety verification module for calculating the neurological instability index; an optimal strategy generation module for calculating the optimal power strategy; a conflict detection module for determining model conflict markers; and a power adjustment module for determining the final power output. This invention prevents catastrophic surgical complications, ensures the integrity of biological nerves, and effectively avoids misjudgments caused by relying on only a single data source.

The invention discloses a cryogenic radiofrequency ablation needle and system, and belongs to the technical field of cryoablation, the cryogenic radiofrequency ablation needle comprises a needle head part, an adjusting handle part, a delivery pipe part, a quick connector part, a rewarming temperature measurement ablation plug part and a radiofrequency ablation plug part, the needle head part is connected to the adjusting handle part, and the delivery pipe part is connected to the radiofrequency ablation plug part; the adjusting handle part is used for connecting the needle head part and the conveying pipe part, the quick connector part is connected to the conveying pipe part, and the rewarming temperature measurement ablation plug part is connected with the radio frequency ablation plug part. On the basis of a cryoablation probe of a high-pressure nitrogen throttling freezing technology, the rewarming module and the radio frequency ablation module are added, central control switching of the three modules is achieved, the integrated structure design of the freezing module, the rewarming module and the radio frequency module is achieved, the integrated structure can be used in a multi-module combined mode and can also be used independently, and the cost is reduced. The cold ablation function and the thermal ablation function are mutually complemented.