98 results about "Ablation Therapy" 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.

Systems, devices, and methods described herein relate to catheter devices for therapy delivery. In some embodiments, a catheter device includes an expandable electrode and a needle, where the needle can be advanced distal to a distal end of the expandable electrode and inserted into a tissue site. The expandable electrode and the distal end of the needle can be configured to deliver electroporation to the tissue site.

1. Name of the product in this design: Disposable steep pulse therapy ablation needle (three needles). 2. Purpose of this design: A disposable steep pulse therapy ablation needle (three needles) for the ablation treatment of tumors. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the technical field of medical equipment, and provides a prostate steam ablation control method and device and a storage medium, and the control method comprises the steps: controlling a water supply part to supply sterile water to a steam generation pipe according to a first water pushing speed, and controlling a heating assembly to heat the steam generation pipe at a first power, sterile water in the steam generation pipe is preheated to a target temperature; controlling the water supply piece to supply sterile water to the steam generation pipe according to a second water pushing speed, controlling the heating assembly to heat the steam generation pipe at a second power, heating the sterile water at the target temperature into ablation steam, and applying the ablation steam to a target ablation area by the steam ablation needle; and controlling the water supply piece to supply sterile water to the steam generation pipe according to the third water pushing speed, and controlling the heating assembly to heat the steam generation pipe at the first power. During steam ablation treatment, the stability of output ablation steam heat can be ensured, steam is prevented from burning a human body, steam holes of the steam ablation needle are prevented from being blocked, and the steam ablation treatment effect is ensured.

The present disclosure provides a system for localizing the position of an endovascular probe and collecting high-resolution images of the anatomy surrounding the probe. In particular, a switchable endovascular imaging antenna / probe and related devices are disclosed, which are conveniently switchable between a configuration that allows the localization with high precision of the distal tip of an endovascular probe, and another configuration that allows imaging in the locality of the probe tip. Embodiments are also disclosed capable of delivering ablation therapy.

The invention discloses a puncture needle for improving the safety and isolation effect of artificial ascites puncture. The puncture needle comprises a hose, a rubber plug, a communicating pipe, a needle body, a needle holding handle and a butterfly wing fixator. The hose is of a venous indwelling needle structure, and the rubber plug is fixedly connected to one end of the hose. The communicating pipe is communicated with the other end of the hose to form a medicine conveying channel. The needle body comprises a steel needle and a soft sleeve wrapping the periphery of the steel needle, the needle holding handle is detachably connected with the needle body, and an isolation plug is arranged in the needle holding handle. And the isolation plug is pulled out together with the steel needle when the needle holding handle is pulled out so as to cover and protect the steel needle. The butterfly wing fixator is arranged at the joint of the needle holding handle and the needle body and comprises a butterfly wing piece and a hydrophilic gel pad fixed to the contact face of the butterfly wing piece and the human skin. The puncture safety in liver cancer ablation treatment is remarkably improved, the risks of mistaken puncture and inaccurate puncture depth are reduced, damage to surrounding important organs and blood vessels is reduced, and the safety and effectiveness of treatment are improved.

The invention aims to provide an electrode needle positioning device, which comprises a first scale, a second scale, a first guide hole, a second guide hole and a second guide hole, and is characterized in that the first scale is provided with a first guide hole for an electrode needle to pass through; the first vernier is connected with the first scale in a sliding mode, a second guide hole for an electrode needle to penetrate through is formed in the first vernier, and the axis directions of the first guide hole and the second guide hole are parallel to each other. Therefore, the plurality of electrode needles can be kept parallel in ablation treatment, the gap distance among the plurality of electrode needles can be controlled, the bifurcation risk of the needle tip is reduced, the operation difficulty is reduced, and the operation risk is reduced.

The application relates to an ablation device, comprising a handle, a catheter, a plurality of ablation electrodes, an energy generating device, a monitoring component and a control module, the plurality of ablation electrodes are distributed on the catheter, the monitoring component is also arranged on the catheter, the control module is electrically connected or communicatively connected with the monitoring component, the control module is configured to receive signals transmitted by the monitoring component and analyze and process the received signals, and then obtain information representing the shape of the catheter. Through the arrangement of the monitoring component and the cooperation of the control module, the information representing the shape of the catheter can be obtained, the shape of the catheter is recognized, the medical staff can formulate the optimal ablation scheme according to the recognition result and the actual situation, the ablation effect is improved, the work efficiency is improved, the visual operation is realized, and the structure is simple and the operation is convenient.

1. The name of the design product: microwave ablation instrument (component). 2. The use of the design product: used for coagulation and ablation treatment of pathological tissues in the body. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: component 1 perspective view 1. 5. Other circumstances that need to be explained: component 1 is a microwave ablation instrument; component 2 and component 3 are ablation needle handles.

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy that may be coupled to an ablation device including at least one electrode for ablation pulse delivery to tissue. The signal generator may generate and deliver voltage pulses to the ablation device in the form of a pulse waveform in a predetermined sequence where the signal generator may independently configure a set of electrodes of an ablation device. The signal generator may further perform active monitoring of a set of electrode channels and discharge excess energy using the set of electrode channels.

The present application relates to a new use of fluorocarbon phase transition microparticles as a therapeutic ablation agent for mechanically damaging or ablating diseased tissue. When fluorocarbon phase transition microparticles are in contact with diseased tissue, under the excitation of low-frequency focused ultrasound, gas-liquid phase transition (i.e. vaporization) and ultrasonic cavitation resonance of vaporized microbubbles occur, followed by controlled intensity cavitation and mechanical damage of local tissue, thereby producing an ablation therapeutic effect on diseased tissue. Vaporized fluorocarbon phase transition microbubbles become ideal exogenous cavitation nuclei, which can significantly reduce the cavitation threshold and induce enhanced inertial cavitation effects. This method has the characteristics of short treatment time, low required ultrasonic pressure and sound intensity, minimal damage to tissues outside the target area, easy operation, etc., improving the targeting and safety of treatment. Although this treatment method requires image guidance, it does not require very precise focusing, reducing the difficulty of operation, and has application prospects in multiple clinical treatment fields such as prostate hyperplasia and tumor immunotherapy.

The invention relates to medical device (1) to be inserted in a defect blood vessel, body cavity, or body duct for treatment or pretreatment thereof. The medical device (1) comprises a hollow shaft (2) having the ability to slidably house an injection means (3), the hollow shaft (2) having a distal end (4) and a proximal end (5), and an elongated holding device (6) connected to the hollow shaft (2), the elongated holding device (6) having a distal end (7) and a proximal end (8). The invention also relates to a kit for the treatment, preferably ablation treatment, of defective blood vessels, body cavities, or body ducts.

Systems, devices, and methods for electroporation ablation therapy are disclosed with protection devices for isolating isolation electronic circuitry, devices, and / or other components from a set of electrodes during a cardiac ablation procedure. A system can include a first set of electrodes disposable proximate to cardiac tissue of a heart and a second set of electrodes disposable in contact with patient anatomy. The system can also include a signal generator configured to generate a pulsed waveform, where the signal generator is coupled to the first set of electrodes and configured to repeatedly deliver the pulsed waveform to the first set of electrodes. The system can also include a protection device configured to selectively couple and decouple electronic devices from the second set of electrodes.

The invention relates to the technical field of atrial fibrillation, in particular to an atrial fibrillation rotor high-density analysis system and a control method. The atrial fibrillation rotor high-density analysis system comprises an embedded data acquisition system and an upper computer, and is characterized in that the embedded data acquisition system processes acquired data and uploads the processed data to the upper computer for analysis. Compared with the prior art, the atrial fibrillation rotor high-density analysis system and the control method provided by the invention are used for accurately mapping and recording electric signals in a cardiac cavity, deeply learning a special software algorithm through an AI loaded machine, and analyzing the atrial fibrillation rotor by adopting professional equipment and technologies; therefore, the obtained real-time electrocardiogram data extraction can evaluate direct information and indexes of ablation treatment sites for clinicians, and the treatment accuracy is improved.

The invention relates to an ablation guide structure and an ablation device, and the ablation guide structure comprises a spiral extension part which is used as a treatment part, is made of a deformable material, and is movably inserted into a blood vessel during use; the electric conductors are distributed along the spiral extension part at intervals, are combined with the spiral extension part and are electrically connected with a power supply for ablation treatment. Due to the arrangement of the spiral catheter / guide wire far-end structure and the multiple electrodes, the action range of ablation treatment is greatly widened; compared with an existing mainstream micro catheter (with a linear type and a single electrode mostly), the spiral far-section structure can be matched with multiple electrodes at different positions to cooperate to form an ellipsoidal damage range during ablation, the ablation range is greatly widened, and effective damage can be caused to target myocardial cells; the spiral guide wire structure is suitable for blood vessels which are narrower and have more complex passages, and the surgical range is greatly widened.

A system for performing a surgical procedure includes a catheter including an ablation therapy delivery portion configured to deliver ablation therapy to a region of interest and an aperture configured to deliver a therapeutic agent to the region of interest; and a workstation operably coupled to the catheter, the workstation including an ablation therapy source operably coupled to the ablation therapy delivery portion of the catheter, a fluid source operably coupled to the aperture of the catheter, and a memory storing instructions, the instructions, when executed by the processor, cause the processor to generate and deliver an ablation therapy to a region of interest, and deliver a therapeutic agent to the region of interest.

A method for minimally invasive laser ablation of a target tissue within a patient while sparing tissue within a safety zone proximate to the target tissue, comprising: guiding a laser fiber within a patient with a guidance tool; measuring a temperature within the target tissue and the safety zone based on an invasive and a non-invasive thermal sensor; computing a thermal profile in conjunction with a real-time tissue image adapted for guidance of the laser fiber with the guidance tool within the patient; and controlling a laser to deliver energy through the laser fiber, to deliver a minimally therapeutic ablation therapy to the target tissue while ensuring that the safety zone is maintained in a non-ablation condition, based on at least a treatment plan, the measured temperature, and the thermal profile.

The application relates to the technical field of medical systems, in particular to an AI-assisted precise ablation operation robot, and the technical scheme acquires tissue information on a track, fluctuation characteristics of organs and path track information through a data acquisition terminal, analyzes ablation risks and tissue risks caused by the fluctuation characteristics of the organs on the path track and the tolerance characteristics of the tissue information, and evaluates the track risks by comprehensively analyzing the ablation risks and the tissue risks, so that the ablation path is optimized through multi-modal data fusion and dynamic risk evaluation, the damage risk to surrounding healthy tissues is reduced while ensuring sufficient coverage of a lesion, and the core innovation lies in layered quantification of ablation risks and tissue risks caused by organ fluctuation, so that safer and more precise ablation treatment is realized.

The invention discloses a pulmonary nodule diagnosis and treatment system based on multi-modal fusion and adaptive regulation and control, and relates to the technical field of medical equipment and clinical diagnosis and treatment. The system comprises a multi-mode image assembly, an intelligent puncture execution assembly, a self-adaptive ablation assembly and a central control unit. The multi-modal image assembly obtains an ultrasonic image, a CT image and an OCT image of the lung, the central control unit fuses the ultrasonic image, the CT image and the OCT image of the lung, plans an initial puncture path, controls the intelligent puncture execution assembly to drive the puncture needle to conduct lung puncture, and dynamically regulates and controls the motion trail of the puncture needle; after the puncture needle reaches the pulmonary nodule position, the central control unit automatically adjusts ablation parameters and controls ablation treatment of the self-adaptive ablation assembly until ablation is finished. Accurate positioning, intelligent puncture and efficient ablation of pulmonary nodules can be achieved.

A device for ablation treatment of a digestive tract and a system comprising the same, comprising: an inner tube; an outer tube sleeved outside the inner tube; a rotating tube, the rotating tube being rotatably sleeved outside the inner tube; an electrode film having a contracted state of being radially reduced and an expanded state of being radially increased, the electrode film having an inner electrode film end and an outer electrode film end in a winding direction of the electrode film, the outer electrode film end being fixedly arranged with the outer tube, and the inner electrode film end being fixedly arranged with the rotating tube; and an expandable member having a contracted state of being radially reduced and an expanded state of being radially increased, the expandable member being completely located on one side of the inner tube; when the expandable member is in the contracted state, the electrode film is also in the contracted state, the expandable member is located between the outermost electrode film and the next outermost electrode film, and each layer of electrode film inside the next outermost electrode film is spirally wound on the rotating tube; when the expandable member is in the expanded state, the electrode film is expanded to the expanded state by the expandable member.

Disclosed in the present invention are a device and method for generating a pulse signal with an adjustable pulse waveform, and a medical ablation system. The device for generating a pulse signal comprises a pulse setting module, a main control module, an output control module, a pulse generation module, and a load module. The pulse setting module is used for configuring relevant technical parameters of a pulsed electric field. The main control module is used for generating first and second pulse signals and first and second control signals on the basis of the configuration parameters. The output control module is used for controlling the output of the first and second pulse signals in real time. The pulse generation module is used for generating a third pulse signal of a target waveform on the basis of the first and second pulse signals and outputting the third pulse signal to the load module. By using the present invention, a high-intensity pulsed electric field meeting clinical requirements can be generated for effective ablation of different lesion tissues, thereby demonstrating significant clinical application value.

The invention discloses a method for creating a tumor personalized treatment simulation model based on overlapped microwave ablation in the technical field of biomedical engineering and computer simulation, and the method comprises the steps: constructing a three-dimensional geometric model containing a liver and a tumor based on medical image data of a patient; and establishing an overlapping microwave ablation finite element model coupling electromagnetic wave propagation and biological tissue heat transfer according to the three-dimensional geometric model. According to the method, the overlapping ablation process is dispersed into a plurality of continuous'ablation-cooling-re-ablation 'stages, the thermal field of the previous stage is inherited as the initial condition of the next stage, and the tissue characteristics changed due to temperature change are dynamically updated, so that accurate simulation of the overlapping thermal field cumulative effect is realized, and the accuracy of the thermal field cumulative effect is improved. Therefore, the prediction precision of the form of the final solidification area of overlapping ablation of the liver tumor is improved, and a doctor can clearly know the possible effect of ablation treatment according to the predicted visual solidification area and the quantitative evaluation index.

The invention is suitable for the technical field of medical instrument auxiliary equipment, provides a tumor ablation preoperative simulation system and device, and relates to a multi-module integration system for soft tissue ablation preoperative planning, scheme simulation and doctor-patient communication. In the embodiment provided by the invention, for a target patient needing ablation treatment, tumor imaging data (such as CT and MRI) of the patient are acquired, a digital model of a tumor and peripheral tissues is reconstructed through three-dimensional modeling software, a preliminary ablation scheme is adjusted to obtain a personalized ablation scheme of the user, and a solid mold is manufactured; based on the personalized ablation scheme, simulated ablation is conducted through a human body bionic material, ablation parameters are adjusted in the ablation process according to the real-time electric field distribution state and the actual ablation range, and therefore the personalized ablation scheme is further optimized; according to the final ablation scheme of the patient, the high-light-transmittance medical glass three-dimensional mold is manufactured, and visual support is provided for doctor-patient communication. According to the system and the device, the risk that important tissues are damaged due to ablation range deviation is effectively reduced, the distribution state of ablation energy is truly fed back through a human body bionic material, and the problem that the scheme optimization efficiency is low due to the fact that the feedback time of a waiting result of a traditional simulation ablation scheme is long is solved.

The invention discloses a damage monitoring imaging method and system for high-intensity focused ultrasound, and belongs to the technical field of medical monitoring. The method comprises the following steps: before treatment, transmitting amplitude-modulated sub-treatment dose ultrasonic waves to a target tissue and collecting signals, and calculating and accumulating to obtain a pre-treatment accumulated displacement diagram; after the HIFU ablation treatment is carried out, the same parameters are collected again and calculated to obtain a post-treatment accumulated displacement diagram; and carrying out difference and normalization processing on the front and back accumulated displacement diagrams, and finally generating a color coded damage monitoring image. Through accumulation and difference characteristic data processing, the tissue displacement response difference caused by damage is remarkably amplified, the problem that a traditional method is insufficient in low-power excitation and damage early-stage monitoring sensitivity is solved, early-stage, accurate and visual monitoring of a damage area in HIFU treatment is achieved, and the method is suitable for popularization and application. And an effective tool is provided for real-time regulation and control of the therapeutic dose.

This invention discloses a method for manufacturing a mass-producible miniature medical heating component and the heating component itself, applicable to ablation therapy or tissue anastomosis in minimally invasive surgical procedures. The manufacturing method includes the following steps: etching or laser-cutting a specific pattern of heating wires in an array on a heating substrate; bonding a thermally conductive substrate and an insulating substrate to the upper and lower surfaces of the heating wires respectively using high-temperature resistant adhesive; drilling holes at predetermined positions on the insulating substrate and injecting copper into the holes to form conductive channels; cutting the semi-finished substrate according to a specified shape; and obtaining the miniature medical heating component. This invention arranges the miniature medical heating components in an array to achieve mass production and ensures the consistency of the component's size, structure, and performance. This manufacturing method allows for mechanized mass production, effectively reducing manufacturing costs. It solves the problems of complex structure, high processing costs, and long processing time associated with existing medical heating components, and has broad application prospects.

The invention relates to a method and apparatus to support ablation of a target volume. The control circuitry may access three-dimensional image information of a target volume of a particular patient and ablation zone information corresponding to a particular ablation therapy scenario. The control circuit may then register the three-dimensional image information of the target volume with the ablation zone information to generate result information, and then generate a two-dimensional representation of the target volume coverage achieved by the corresponding ablation zone according to the result information. A two-dimensional representation of the target volume coverage achieved by the corresponding ablation zone may then be presented via a user interface.

Methods and devices for performing ablation. In some examples an ablation delivery system is configured to allow separate voltage levels of a capacitor stack to be accessed for use in therapy delivery. Ablation therapy systems switchable between current and voltage controlled output are described. Methods of treating a patient using adjustable interphase or interpulse delay are disclosed as well.

The application relates to a laser ablation system and a working method. The laser beam and the indicating light are combined through a beam alignment module, the laser beam is ensured to stably enter a plaque target position, and the ablation reliability is improved; the laser energy is monitored in real time through an energy monitoring module, the outgoing energy is adjusted, the outgoing energy is ensured to be stably in a required ablation range, the laser parameters of a laser emission module need not to be adjusted, the ablation complexity is reduced, the plaque ablation effect is ensured, the damage risk of a laser catheter is reduced; the laser pulse is time-domainally widened through a pulse widening module, the peak power of the laser beam is reduced, the laser energy more gently acts on the plaque, and the damage to the laser catheter is reduced; the light spot energy distribution is more uniform through a homogenization coupling module, and the damage to the laser catheter is reduced; laser energy is delivered to a plaque target position in a blood vessel through a laser catheter, precise ablation treatment of the plaque in the blood vessel is realized, and the stability and reliability of the laser ablation are improved.

Systems, apparatus, and methods for protecting electronic components from high power noise caused by high voltage pulses are disclosed. In particular, systems, devices, and methods are disclosed for electroporation ablation therapy having a protection device for isolating an isolation electronic circuit, device, and / or other component from a set of electrodes during a cardiac ablation procedure. A system may include a first set of electrodes that may be disposed proximate to heart tissue of a heart and a second set of electrodes that may be disposed in contact with patient anatomy. The system may also include a signal generator configured to generate a pulse waveform, where the signal generator is coupled to the first set of electrodes and configured to repeatedly deliver the pulse waveform to the first set of electrodes. The system may also include a protection device configured to selectively couple and decouple the electronic device with the second set of electrodes.

The lung hot steam balloon catheter capable of achieving real-time monitoring and safe temperature control comprises a flexible catheter body and an ablation balloon fixedly connected to the front end of the flexible catheter body, and an inflation channel, a deflation channel and a signal cable channel which are independent of one another are integrally arranged in the catheter wall of the flexible catheter body; the ablation balloon is communicated with the inflation channel and the deflation channel; the front end of the flexible tube body is further fixedly connected with an ablation monitoring probe, and a data line of the ablation monitoring probe is contained in the signal cable channel. The rear end of the flexible tube body is fixedly connected with a catheter connector, the catheter connector is provided with an integrally-formed valve rod, the valve rod is provided with an air leakage hole communicated with the air leakage channel, and through the collaborative design of real-time monitoring and efficient heat management, improvement of treatment accuracy, treatment effect stability and operation safety is synchronously achieved; and a powerful guarantee is provided for maximization of the curative effect and safety controllability of lung hot steam ablation treatment.