154 results about "Ablation Therapy" patented technology

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.

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 discloses an ablation therapy auxiliary device for the interventional department, and relates to the technical field of medical instruments, the ablation therapy auxiliary device comprises two sets of multi-axis arms, a multi-layer annular gradient magnetic field generator is arranged at the tail end of the other set of multi-axis arms, and a spherical magnetorheological fluid cavity, a laminated electroactive polymer film and a flexible supporting layer structure are adopted through an ablation needle assembly; according to the composite driving mode combining the magnetorheological fluid and the pneumatic micro push rod, the viscosity of the magnetorheological fluid can be rapidly changed under the action of a magnetic field, large-angle flexible rotation of the joint is achieved, the electroactive polymer film can be accurately and finely adjusted at a small angle, and the pneumatic micro push rod can push away surrounding tissues and is matched with the multi-layer annular gradient magnetic field generator at the tail end to achieve large-angle flexible rotation of the joint. The multi-dimensional precise positioning of the ablation needle assembly in the space is achieved, it is ensured that the ablation electrode can be precisely aligned with a tiny focus or a focus in a special position, the flexibility and precision of operation are greatly improved, damage to surrounding normal tissue is effectively avoided, the operation safety is improved, and the ablation success rate of the focus is increased.

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.

Medical devices, systems, and methods for therapeutic vapor ablation treatment of airway-related diseases are disclosed. An exemplary ablation catheter includes an elongate catheter shaft having a proximal end region and a distal end region and including a lumen extending between the proximal end region and the distal end region; an expandable basket positioned adjacent a distal end region of the elongate catheter shaft and in fluid communication with the lumen, the expandable basket configured to move between an unexpanded configuration and an expanded configuration; and a nozzle positioned in a longitudinal direction along the expandable basket and configured to eject vapor to ablate tissue proximate thereto.

The ablation needle at least comprises a needle tube, a first cavity and a second cavity which are independent of each other are arranged in the needle tube, a first pipeline is arranged in the first cavity, a second pipeline is arranged in the second cavity, and the first pipeline and the second pipeline extend to the outside of the needle tube from the near end of the needle tube; the near end of the needle body is connected with the far end of the needle tube, a hollow pipeline is arranged in the needle body, a first channel is formed between the needle body and the pipeline, a second channel is arranged in the pipeline, the far end of the first channel is communicated with the far end of the second channel, the near end of the first channel is communicated with the first cavity, and the far end of the second channel is communicated with the second cavity. The near end of the second channel is communicated with the second cavity, and a water outlet hole is formed in the needle body; the needle head is connected to the far end of the needle body. According to the utility model, two channels are arranged, one channel is used for injecting one kind of liquid, and the other channel is used for injecting the other kind of liquid or sucking gas generated in the ablation treatment process.

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 a method for determining ablation parameters for ablation therapy, comprising:-receiving (100) sensor data acquired by at least two sensors (10) spatially arranged along a shaft (5) of an ablation probe (2), each sensor having a different sensor position (11, T1, T2, T3, T4), the sensor data for the at least one measured parameter comprises two measured values obtained at different sensor positions (11, T1, T2, T3, T4); -determining (200) an ablation parameter on the basis of the sensor data and / or measured values of the same measurement parameter at different sensor locations (11, T1, T2, T3, T4); -providing (300) the determined ablation parameters.

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.

One or more example embodiments relates to a method for determining an ablation parameter for an ablation treatment, the method comprising receiving sensor data acquired by at least two sensors, the at least two sensors being spatially arranged along a shaft of an ablation probe, each of the at least two sensors having a distinct sensor position, wherein the sensor data for at least one measurement parameter includes two measured values obtained at different sensor positions; determining the ablation parameter based on at least one of the sensor data or the two measured values of the same measurement parameter at different sensor positions; and providing the determined ablation parameter.

The utility model provides an ablation detection system, which relates to the field of medical equipment and comprises an ablation module, a detection module, a switching circuit module and an ablation detection electrode. The ablation module and the detection module are both electrically connected with the switching circuit module, and the switching circuit module is electrically connected with the ablation detection electrode; the ablation detection electrode comprises at least one ablation electrode and is used for ablation treatment; the ablation detection electrode further comprises at least two detection electrodes used for detecting target tissue. Only the contact position of the end of the detection electrode and the tissue is conductive, and the other positions are provided with insulating layers; the ablation module is used for outputting ablation current; the detection module is used for outputting the excitation signal and receiving the feedback signal so as to detect the target tissue. The ablation electrode can be guided to reach the preset position of the human tissue. The method can assist in detecting whether target tissues belong to normal tissues, benign tissues or malignant tissues or not, and damage to human tissues is reduced.

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 present invention discloses a spider vein medical device and medical equipment that integrates radiofrequency ablation and sclerotherapy. Radiofrequency ablation therapy is achieved by providing an RF energy input terminal within a gripping portion, securing the puncture needle body and electrically connecting it to the first electrical connection terminal of an electrode conduction assembly. Furthermore, the second electrical connection terminal of the electrode conduction assembly is electrically connected to the RF energy input terminal when the assembly is mounted on the gripping portion. Furthermore, a clearance space is provided on the electrode conduction assembly to avoid the liquid conduction section at the tail end of the puncture needle body, allowing an injection line to be connected to the liquid conduction section. The injection line can then be connected to an external liquid injection device to achieve sclerotherapy. This embodiment allows sclerotherapy and radiofrequency ablation to be performed separately within the same punctured blood vessel, or separately within different blood vessels in the same region, thereby achieving combined treatment of spider veins using different surgical procedures.

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.

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.

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.

A computer-implemented method for helping a user in the planification of a treatment to be delivered via a probe to an effective target region of a body of a patient, the treatment being a radiotherapy, an ablation therapy, a laser-based or an ultrasound-based treatment, by a user graphical interface including a controller configured to control the interaction between the user and the user graphical interface. A device is configured to implement the method and to a computer program product including instructions which, when the program is executed by a computer, cause the computer to carry out the method.

The invention relates to the technical field of medical instrument auxiliary equipment, and discloses an auxiliary device for tumor ablation therapy, which comprises a plurality of groups of brackets, the locking mechanism is connected between the adjacent brackets and is used for folding, adjusting and locking the adjacent brackets; the clamping mechanism is arranged at one end of a whole formed by the multiple sets of supports, a universal sleeve is fixedly installed at the other end of the whole, a rigid guide channel is formed by the auxiliary device for tumor ablation treatment and the puncture hole, and an ablation needle is restrained by the hole wall when penetrating through the hole, so that transverse shaking is avoided; the angle can be flexibly adjusted during unlocking, the movement range of the ablation needle is effectively limited through the design, the problem that puncture fails due to shaking of a tumor with the small size or the deep position is solved, the probability of repositioning or operation termination is reduced, and the working efficiency is improved. The treatment risk and pain of a patient are reduced, positioning deviation caused by slight vibration or operation touch of the device is avoided, and it is ensured that the ablation needle accurately reaches the tumor core area.

An ablation treatment catheter may include a first conductive wire formed of a first material. The first conductive wire is configured to be connected to a power generator and to carry a current to deliver ablation energy to a biological tissue. The catheter may include a second wire coupled to the first conductive wire. The second wire formed of a second material. The second wire forming a junction with the first conductive wire. The catheter may include a first electrode comprising an ablation element and a temperature sensor. The ablation element includes part of the first conductive wire and is configured to deliver the ablation energy to the biological tissue. The temperature sensor includes the junction of the first conductive wire and the second wire such that a thermocouple is formed at the junction to measure temperature at the first electrode.

The invention is suitable for the technical field of medical equipment, and provides a pulse field ablation dynamic regulation and control system and device. In the embodiment, the target tissue to be subjected to ablation treatment can be subjected to ablation treatment through the set pulse parameters, then the multi-modal data of the target tissue are collected in the treatment process, and then the real-time target pulse parameters in the treatment process are determined through the multi-modal data; and then corresponding pulse energy is generated according to the target pulse parameter for treatment. The problem of insufficient data utilization during pulse field ablation treatment is solved. And in the treatment process, the acting area of the pulse energy is adjusted in real time according to the field intensity gradient distribution generated by the pulse energy and the three-dimensional model containing the bioelectric characteristics of the target tissue, so that the pulse energy acts on the target tissue according to an expected target. The problem that regulation and control real-time performance is insufficient during pulse field ablation treatment is solved, and accuracy and safety of electric pulse ablation are improved.

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.

The present invention discloses an ablation puncture needle with an OCT imaging function, which belongs to the field of medical equipment technology. It includes an OCT imaging system, a laser ablation system, a puncture needle, and a puncture needle drive assembly; an inner and outer metal sleeve are provided in the puncture needle sleeve, and two gradient refractive index lenses with beveled surfaces are respectively provided in the inner metal sleeve and the outer metal sleeve. The two gradient refractive index lenses are controlled to rotate by the drive assembly to realize the acquisition of OCT images and three-dimensional imaging. Since the OCT imaging system and the laser ablation system are both integrated into the puncture needle, three-dimensional imaging of the lesion tissue in the patient's body can be performed in real time during the puncture process to determine the type and location of the lesion; then, ablation treatment is performed through the laser ablation system and the effect after treatment is judged, thereby improving the accuracy of ablation treatment of lesions, such as tumors, shortening the diagnosis and treatment time, and alleviating the pain of patients due to multiple punctures required for biopsy.

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.