206 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 relates to the technical field of focus positioning, in particular to a hysteromyoma focus accurate positioning method combining image analysis and data fusion, which comprises the following steps: acquiring multi-modal uterus image data, and carrying out artifact suppression and spatial registration on an original image; performing three-dimensional reconstruction on the preprocessed multi-modal image data set to generate a three-dimensional uterus model comprising anatomical structure features; lesion feature segmentation is carried out in the three-dimensional uterus model, and morphological parameters and textural features of a myoma lesion are extracted; carrying out hemodynamic analysis to obtain blood perfusion parameters and blood vessel distribution characteristics of the focus area; the blood perfusion parameters and the blood vessel distribution characteristics are fused, the three-dimensional uterus model is combined, and a focus biomechanical characteristic distribution diagram is constructed; and generating a real-time navigation path according to the biomechanical characteristic distribution diagram, and outputting a positioning report. According to the method, personalized ablation energy suggestions are made, the ablation treatment efficiency and success rate are effectively improved, the ablation energy is dynamically adjusted, and the treatment efficiency and safety are ensured.

The invention relates to an ablation assembly and a radiofrequency ablation catheter, a deformation frame body has a contraction state and an unfolding state, an ablation electrode group comprises a plurality of electrode elements distributed on the surface of the deformation frame body, and in the unfolding state of the deformation frame body, the ablation electrode group comprises a plurality of electrode elements; the plurality of electrode elements can be respectively constructed into a plurality of annular track unit groups and a plurality of linear track unit groups in the axial direction and the circumferential direction of the deformation frame body, the annular track unit groups surround the deformation frame body in the circumferential direction, and the linear track unit groups are linearly distributed in the axial direction of the deformation frame body. A plurality of electrode elements in the ablation electrode set form a plurality of annular track unit sets and a plurality of linear track unit sets in the axial direction and the circumferential direction of the deformation frame body, the ablation treatment range in the blood vessel can be greatly expanded along with unfolding of the deformation frame body, operation such as axial movement and circumferential rotation is not needed any more, and the ablation efficiency is improved. Therefore, large-range treatment can be achieved, the treatment efficiency can be effectively improved, the operation difficulty is reduced, and development of the ablation treatment technology is facilitated.

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 an electric field ablation device for digestive tracts, an ablation system and application, the electric field ablation device comprises a slender carrier and an expandable part carried by the slender carrier, the expandable part comprises a balloon and an electrode assembly, and a plurality of electrodes of the electrode assembly are arranged on the surface of the balloon. The balloon cavity of the balloon is filled with liquid, so that the balloon can be expanded, the expandable assembly has a first state with the large transverse size, the electrodes on the periphery of the outer side of the balloon can be tightly attached to tissue of the alimentary canal, and ablation treatment on the alimentary canal is achieved; when the liquid in the balloon cavity is discharged, the balloon can be shrunk, so that the expandable assembly has a second state with a smaller transverse size and can conveniently enter a human body or retreat from the human body, thereby facilitating the surgical operation of a doctor and relieving the pain of a patient; the sacculus is soft in texture and can be more tightly attached to the tissue of the digestive tract of the human body, and the accurate ablation treatment effect is achieved.

The utility model relates to the technical field of medical instruments, and discloses a medical fixator and an ablation treatment device.The medical fixator comprises a bottom supporting part and an instrument fixing part, the head end of the instrument fixing part is movably connected with the bottom supporting part, multi-angle adjustment can be achieved, and different operation requirements can be met; the tail end of the instrument fixing part is used for connecting a corresponding medical instrument; the upper area of the bottom supporting part is used for supporting a patient, for example, the bottom supporting part is fixed to a preset position such as a CBCT sickbed during preoperative preparation or during an operation, so that relative fixation of the whole device is achieved, and corresponding medical instruments can be moved to the focus position of the patient under operation of medical staff for treatment or pretreatment; the medical fixator is simple in structure and flexible to operate, the problem that a traditional fixing mode is poor in stability is effectively solved, and operation efficiency and safety are remarkably improved.

The invention relates to a cryoablation system, a cryoablation catheter and a control method of the cryoablation catheter. The cryoablation catheter comprises a slender body, an expandable assembly and a temperature measuring assembly, the expandable assembly is arranged at the far end of the slender body, and the expandable assembly can block a vein mouth when in an expanded structure; the slender body comprises an outer tube and a main body tube, the outer tube and the main body tube define an airflow channel, the main body tube is provided with a first conveying channel, the airflow channel is communicated with the expandable assembly, and the first conveying channel penetrates through the main body tube and is used for conveying mild liquid to veins; the temperature measuring assembly is arranged on the expandable assembly and can detect the temperature of the vein mouth so as to judge the effectiveness of plugging of the expandable assembly. Thus, the temperature measuring assembly on the expandable assembly is used for measuring temperature changes to judge the blocking state, the usage amount of contrast agents and X-rays can be reduced, the specific leakage position can be judged, ablation treatment can be conveniently carried out in the later period, and the treatment effect is guaranteed.

An apparatus and methods for performing ablation of myocardial tissues are disclosed. The apparatus includes a plurality of ablation electrode configurations to which nanosecond pulsed electric fields are applied. The methods relate to therapies to treat cardiac arrhythmias, such as, atrial fibrillation and scar-related ventricular tachycardia, amongst others. The affected myocardial tissues are ablated creating a plurality of lesions enabled by the nanosecond pulsed electric fields applied to either penetrating electrodes, endo-endo electrodes, or endo-epi electrodes. Different electrophysiological tests are performed to assess the application of nanosecond pulsed electric field ablation to specific desired tissue location within the heart. Test results show the potential to overcome limitations of current ablation therapies, thereby providing patients and doctors a superior treatment for cardiac arrhythmias.

The invention discloses a cyst treatment system which comprises a medical host, the medical host comprises an air pump and a peristaltic pump, liquid in an infusion bag is input into an infusion tube arranged at the front end of a handle shell through a pipeline and the peristaltic pump, and the negative pressure end of the air pump is communicated with a suction tube arranged at the front end of the handle shell through a pipeline and a waste liquid collecting barrel. A screw rod is arranged in the suction pipe and is driven by a transmission claw, a driving claw and a driving motor which are arranged in the handle shell, the infusion pipe and the suction pipe are welded together, and the infusion pipe or the suction pipe is connected with the positive electrode of a radio frequency module in the medical host through a cable and a coagulation cutting connector on the host shell. The negative electrode of the radio frequency module is connected with the negative plate through a cable and a plate connector on the host outer box. Positive and negative suction pressure and electrode radio frequency energy are provided by the medical host, cysts are treated by perfusion suction and radio frequency ablation instead of being stripped during treatment, and wounds caused by stripping are avoided.

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 invention relates to the technical field of thermal ablation, and particularly discloses a bone tumor thermal ablation treatment control device combined with machine learning, which is characterized in that image definition is enhanced by performing filtering noise reduction and contrast enhancement processing on image data in a thermal ablation operation, and an image processing technology based on deep learning is further introduced. Characteristic dominant modeling based on combined guidance of space-semantic double-domain context information is performed on enhanced image data in thermal ablation, so that key features of a tumor area and peripheral tissues thereof are highlighted, and interference of non-key information is inhibited; therefore, ablation boundary segmentation in the bone tumor thermal ablation treatment process is realized on the basis. By means of the mode, the feature expression distinction degree and ablation boundary segmentation accuracy of image data in the thermal ablation operation can be remarkably improved, efficient thermal ablation treatment control can be achieved, and powerful tool support is provided for minimally invasive treatment of bone tumors.

The utility model provides an endoscope puncture needle with biopsy and ablation functions. The endoscope puncture needle comprises an operation main body, a biopsy needle, a catheter mechanism and a forceps channel fixer, the operation body comprises a limiting handle and a pushing rod, the limiting handle is provided with a first end and a second end which are opposite, one end of the pushing rod movably penetrates through the limiting handle through the first end, and the other end of the pushing rod is provided with a connecting part used for being externally connected with a negative pressure device or an electrode device; a needle inserting depth limiting mechanism matched with the push rod is arranged in the limiting handle, one end of the catheter mechanism is arranged in the limiting handle in a penetrating mode through a second end and communicated with the push rod, and the other end of the catheter mechanism is communicated with the biopsy needle; the forceps channel fixator is movably arranged on the catheter mechanism in a sleeving mode and used for fixing the catheter mechanism and a forceps channel opening of the endoscope. According to the utility model, the problem that the risk of postoperative complications of a patient is increased due to the increase of the number of times of puncture because the needle biopsy procedure and the ablation procedure need to be operated separately and punctured for multiple times in the existing medical procedure needing needle biopsy and interventional ablation treatment can be solved.

The invention relates to an electric field ablation device and ablation system for the digestive tract and application, the electric field ablation device comprises a first rod, a second rod, a supporting piece and an electrode assembly, the second rod is slidably arranged on the first rod in a sleeving mode, and the first far end portion of the first rod is exposed; the supporting piece is fixedly connected between the first far-end portion and the second far-end portion of the second rod, a plurality of electrodes on the electrode assembly are arranged on the supporting piece, the supporting piece can be switched between the expansion state and the contraction state by driving the first rod and the second rod to slide relatively, the structure is simple, and operation is convenient. When the supporting piece is in the expanded state, the electrode is exposed out of the surface, away from the first rod, of the supporting piece and can be tightly attached to the tissue of the digestive tract, and therefore accurate ablation treatment can be achieved for treating diabetes or obesity.

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.

Systems, devices, and methods for delivering pulsed electric field ablation energy to endocardial tissue are disclosed, wherein the system includes a pulsed waveform signal generator for medical ablation therapy and an endocardial ablation device including at least one electrode for delivering ablation pulses to tissue. The signal generator can deliver voltage pulses to the ablation device in the form of a pulsed waveform. The system can include a cardiac stimulator for generating a pacing signal and for delivering a pulsed waveform in sequence in synchronization with the pacing signal.

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 invention relates to a composite ablation forceps and an ablation system, and relates to the field of ablation technology. The composite ablation forceps of the present invention includes a clamping component, a holding component, and a transmission component. Since the transmission component can deliver energy to the cryogenic fluid inlet and return assembly and / or the electrode, the distal side of the first jaw assembly and / or the distal side of the second jaw assembly can perform corresponding ablation operations. Therefore, different ablation strategies can be determined according to the lesion, so as to avoid accidentally injuring normal tissues and ensure more thorough ablation treatment.

A method of planning a microwave ablation procedure includes uploading a pretreatment scan to a control system of an energy delivery system, displaying the pretreatment scan on a display of the control system, and analyzing the pretreatment scan and identifying a target tissue region that includes a disorder. The method further includes creating and graphically displaying a digital target area on the pretreatment scan, planning and graphically depicting on the pretreatment scan a target path for one or more planned ablation probes, and creating a planned ablation zone for each planned ablation probe based on user-selected parameters. The method further includes placing one or more actual ablation probes in the subject patient, obtaining a probe scan of the subject patient that detects the actual ablation probes, and assigning the planned ablation zone for the planned ablation probes to the actual probes.

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.