24 results about "Microwave ablation" patented technology

The application discloses a microwave ablation needle fixing support, characterized by comprising: hinged left and right bridge arms, a universal ball suitable for being clamped and fixed between the two bridge arms, and a locking mechanism for locking the clamped state of the two bridge arms, wherein the universal ball is provided with a vertical slot, and an elastic rubber gasket for clamping and fixing a microwave ablation needle is arranged in the vertical slot. After the microwave ablation probe completes puncture, the ablation probe has a certain relative position and included angle with the skin plane of a patient. The application can firmly fix the ablation probe on the skin of the patient without increasing the puncture difficulty, increasing the length of the ablation probe, or changing the puncture state of the ablation probe after the puncture is completed, so as to prepare for subsequent ablation operation. After the ablation operation is completed, the gear locking device is opened, and the fixing support can be conveniently removed.

The application discloses a kind of microwave coagulation equipment idle protection method and system, it is related to microwave coagulation equipment technical field, the method includes: through temperature sensor being arranged on the microwave coagulation equipment microwave ablation needle, temperature rise is generated by real-time absorption microwave energy that is leaked to air due to idle, and corresponding temperature is collected;According to the temperature collected at each time point, the temperature change rate on temperature sensor is continuously calculated according to set time interval;Whether the microwave coagulation equipment is idle state is judged by the temperature change rate.The application improves the timeliness of idle state determination, to improve the timeliness of microwave coagulation equipment idle state protection.

This invention discloses a microwave ablation electrode, relating to the field of medical device technology. It mainly includes a main needle body, whose working end can release microwave energy to achieve microwave ablation. The main needle body is equipped with a non-working end circulating cooling structure and a working end liquid injection structure. The non-working end circulating cooling structure allows a cooling medium to reach the non-working end of the main needle body to cool the non-working end and surrounding tissue, and also allows for the return flow of the cooling medium. The working end liquid injection structure allows a cooling medium to reach the working end of the main needle body to cool the working end and surrounding tissue, and also allows the cooling medium to be injected into the lesion tissue, absorbing microwave energy to form steam, achieving steam thermal ablation. This invention achieves dual ablation through steam thermal ablation and microwave ablation, improving the ablation effect, reducing the temperature of the working end of the microwave ablation electrode, and increasing the moisture content of the tissue surrounding the working end, thus reducing carbonization of the lesion tissue.

1. Name of the designed product: connector (microwave ablation). 2. Use of the designed product: the designed product is used as a connector of a microwave ablation device. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The utility model discloses a high -performance microwave ablation electrode with magnetic navigation device, including treatment mechanism, cooling mechanism and succession mechanism, the treatment mechanism includes handle, ablation needle who is penetrated in the handle one end, is embedded in the radio frequency generator of handle other end, ablation needle is connected with radio frequency generator, cooling mechanism, the cooling mechanism includes the annular cooling cavity of being opened in the handle inside, with two circulating water pipes of annular cooling cavity inside intercommunication, with the physiological saline bottle no.

The application discloses a microwave ablation power adaptive control method based on deep learning, relates to the technical field of control and regulation, and comprises the following steps: updating a deep convolution network, re-estimating multi-dimensional ablation dynamic characteristic data based on the updated deep convolution network, obtaining corrected ablation state data of a current ablation cycle, acquiring ablation region temperature field data collected in real time, performing comprehensive state evaluation of microwave energy absorption and heat diffusion by fusing the corrected ablation state data and the ablation region temperature field data, and generating ablation comprehensive state evaluation data; performing microwave power adjustment decision according to the ablation comprehensive state evaluation data, generating a microwave power adaptive adjustment instruction, and performing real-time regulation and control on the transmission power of a microwave ablation system based on the microwave power adaptive adjustment instruction, so as to perform adaptive control on the microwave ablation power. The application has the effect of improving the microwave ablation power control efficiency.

This invention discloses a microwave ablation handpiece with cryotherapy, comprising a handpiece body, a microwave radiation unit, a cooling circulation unit, a temperature sensor, and a control circuit. One end of the handpiece body is the operating end, and the handpiece body has an inner cavity. The microwave radiation unit is disposed in the inner cavity, and the microwave radio frequency unit is connected to an external microwave energy source via a radio frequency line to enable the microwave radiation unit to emit 2.45 GHz microwave energy. The cooling circulation unit has a cooling circulation chamber surrounding the microwave radiation unit, and the cooling circulation chamber can be vented into or drained with coolant. The temperature sensor is disposed in the inner cavity to sense the real-time temperature of the cooling circulation unit. The control circuit receives the temperature from the temperature sensor. With these features, it can selectively act on subcutaneous fat without damaging the epidermis and dermis; it can precisely control the temperature, ensuring that the temperature in contact with the epidermis is within a safe range; it has efficient energy penetration, shortening the treatment time per session; and it can operate for extended periods.

The application provides application of a CSF1R inhibitor combined with microwave ablation in treatment of lung cancer tissue, the combined treatment of microwave ablation and the CSF1R inhibitor significantly enhances T cell infiltration, after the combined treatment, the proportion of total immune cells is significantly increased, the proportion of macrophages in immune cells, the proportion of M2 type macrophages in macrophages and the proportion of M2 type macrophages and M1 type macrophages in the combined treatment group of microwave ablation and the CSF1R inhibitor are significantly reduced, and the proportion of CD4+ T cells and CD8+ T cells in T cells is significantly enhanced; the anti-tumor effect of the combined treatment of microwave ablation and the CSF1R inhibitor is significantly higher than that of the single treatment group, and the safety is good.

This utility model relates to the field of ablation needle technology, specifically to a disposable, visual, flexible microwave ablation needle, comprising: an endoscope body; a flexible tube connected to the endoscope body, the flexible tube having multiple first through holes and one second through hole; and an ablation catheter connected to the endoscope body and angled relative to the endoscope body, the ablation catheter being fitted with a slidable ablation component, the ablation component extending to the outside of the endoscope body through the second through hole for ablation. In this utility model, the ablation needle is located within the flexible tube and the endoscope body, making full use of the space inside the flexible tube, achieving a compact and reasonable distribution within a limited space. Furthermore, the design of the first and second through holes satisfies both the need to determine the location of the lesion tissue and ensures the smooth extension of the ablation needle for ablation, eliminating the need for repeated confirmation of the lesion location.

This invention provides a method and system for predicting ablation temperature fields with full-scale recalibration and spatial compensation, relating to the interdisciplinary fields of biomedical engineering, medical imaging computing, and artificial intelligence. The method involves acquiring a three-dimensional tumor mask, a three-dimensional needle path mask, and an initial specific absorptivity field of the case to be predicted, and stitching them together to obtain a multi-channel input feature map. Feature extraction is performed on the multi-channel input feature map, and semantic feature extraction is performed on the obtained multi-scale encoded feature map to obtain a high-level semantic feature map. Parallel feature extraction is performed using dual-path branching to obtain a first feature map and a second feature map, respectively. Spatially adaptive weighted fusion processing is performed using a gated decision block to obtain a three-dimensional ablation temperature field prediction map. This invention solves the problems of insufficient prediction accuracy, loss of local high-temperature details, poor generalization across cases, and sub-voxel-level spatial positioning bias caused by multi-level sampling in existing microwave ablation temperature field prediction technologies.

The utility model discloses a kind of oncology clinical treatment catheter fixer, including microwave ablation therapeutic instrument, the front of microwave ablation therapeutic instrument is equipped with interface panel and several fixed mechanisms, the fixed mechanism includes support frame and several slides, several The slide is locked and connected with support frame by first locking screw, the support frame includes mounting portion and two side plates, the clearance that can be supplied to catheter limiting accommodation is reserved between two The side plate, the utility model relates to medical instrument technical field.This oncology clinical treatment catheter fixer, by the front of microwave ablation therapeutic instrument is equipped with several fixed mechanisms that can be supplied to the continuous bending arrangement of catheter, can provide storage support structure for too long catheter, at the same time, with the aid of slide assembly on the slide of support frame, cooperate the first locking screw that can be supplied to the fixed slide, the length of wire laying of catheter can be conveniently adjusted, reduce catheter drag, drag and other phenomena, improve the flexibility of use.

This invention relates to the field of pharmaceutical adjuvant technology, and discloses a composite nanoparticle formulation with enhanced microwave ablation effect on liver tumors, its preparation method, and its application, comprising the following steps: Step S1, reacting silica nanospheres, ammonia, and zirconium propofol (IV) in a mixed solvent composed of anhydrous ethanol and acetonitrile to obtain ZrO2@SiO2 nanospheres; Step S2, using NaOH solution to etch and remove the SiO2 template inside the ZrO2@SiO2 nanospheres to obtain hollow ZrO2 nanospheres; Step S3, loading copper nitrate into the hollow ZrO2 nanospheres to obtain a ZrO2@Cu(NO3)2 intermediate; Step S4, dispersing the intermediate with PVP and H2BDC in DMF, and reacting under sealed and constant temperature to obtain ZrO2@CuO / Cu-MOF composite nanoparticles. The composite nanoparticles obtained by this scheme can be used as microwave ablation enhancers. The mesoporous structure of ZrO2 and the microwave absorption characteristics of Cu-based components work synergistically to effectively enhance the microwave ablation effect on tumors. At the same time, Cu-MOF can load drugs to achieve synergistic treatment of "ablation + chemotherapy".

The present disclosure provides an energy generation circuit, an energy generation method and a medical device, and relates to the field of medical devices. The energy generation circuit comprises: a control module configured to generate a frequency setting indication, the frequency setting indication being used to indicate to set a signal frequency suitable for one of the radio frequency ablation and the microwave ablation; a signal generation module configured to generate a square wave signal based on the frequency setting indication; and an energy adjustment module configured to generate ablation energy suitable for the one of the radio frequency ablation and the microwave ablation based on the square wave signal.

The utility model relates to the technical field of ablation needle, specifically relates to a microwave ablation needle needle head that can realize high energy efficiency energy transmission, include: ablation part, ablation part has connecting portion and ablation end, connecting portion is connected in ablation end one end and extends along the axial direction of ablation end, coaxial cable core is fixedly connected with connecting portion through ultrasonic welding mode, makes ablation part and coaxial cable core form integral structure, sleeve, the connecting place of coaxial cable core and connecting portion is covered, strengthens the stability and protective property of connecting portion part, casing, cover in the outside of sleeve provides the outer layer protection of whole microwave ablation needle needle head, in the utility model, the connecting portion of ablation part and coaxial cable core is fixedly connected through ultrasonic welding, has reduced the loss in energy transmission process significantly, has improved energy transmission efficiency, has guaranteed that microwave energy can be transmitted to ablation part efficiently, stably, makes ablation needle needle head reach higher ablation temperature in shorter time.

To provide an apparatus, system, and method that may include a microwave ablation probe. [Solution] The microwave ablation probe may include a feed line having an inner conductor, an outer conductor and a dielectric, and an antenna including a helical arm electrically connected to the outer conductor of the feed line at a junction, and a linear arm electrically connected to the inner conductor of the feed line.

The utility model relates to the technical field of microwave ablation needle, the utility model discloses a kind of anti-loosening transmission cable and microwave ablation needle with it, wherein transmission cable includes cable main body, further include: connector, connector is installed in the one end of cable main body;Elastic buckle, elastic buckle is set on connector, for preventing connector from falling off from connector seat. Elastic buckle includes fixed part, clamping part and elastic part, fixed part is installed on connector, clamping part is set in protrusion, and transition is connected between fixed part and elastic part, elastic part is set in upraised type inclination, and the width of elastic part is less than clamping part. A kind of anti-loosening transmission cable provided by the utility model, the fixed connection of connector and connector seat is realized using elastic buckle, and it is not easy to loosen under external force pulling, guarantee the stability of connection.

The application belongs to the technical field of microwave therapeutic apparatuses, in particular to a magnetic resonance compatible microwave ablation therapeutic apparatus, which comprises a main body, a handle electrically connected to one side of the main body, a threaded fixing rod fixedly connected to one end of the handle, a fixing block threadedly connected to one end of the threaded fixing rod, an ablation needle body fixedly connected to one end of the fixing block, and a batch disinfection and automatic installation integrated assembly arranged on the main body. The batch disinfection and automatic installation integrated assembly is used to save the process of manually installing the ablation needle body by the operator, and all the ablation needle bodies to be used are uniformly disinfected after being put into a disinfection box, so that the disinfection and automatic installation integrated operation is realized, which is beneficial to shorten the preparation time of the operation and speed up the operation progress.

The utility model relates to medical equipment technical field discloses a kind of microwave ablation host device of precision temperature control.This one kind of microwave ablation host device of precision temperature control, comprising: basic structural component, cooling heat dissipation component is installed in the inside of basic structural component, connecting frame is installed in the upper end of cooling heat dissipation component, and cooling fan blade is installed in the inside of connecting frame, flow sensor is installed in the front end of cooling fan blade, temperature controller is installed in the upper end of flow sensor, using constant temperature component is installed in the front end of basic structural component, device shell is installed in the upper end of using constant temperature component, and needle is installed in the front end of device shell, with the temperature of the upper end of ablation host device cannot be accurately controlled when being used to device, resulting in subsequent inability to guarantee the stability and safety (focusing microwave) during cryoablation surgical procedure and other shortcomings are effectively prevented, solve the above technical problem.

The application provides a microwave ablation control system and method based on nuclear magnetic resonance, and belongs to the technical field of ablation control.The system comprises an MRI rapid temperature measurement module, a temperature prediction module, a microwave ablation power control module, a tissue impedance monitoring module and a data fusion processing module, wherein the microwave ablation instrument, the MRI rapid temperature measurement module and the tissue impedance monitoring module are all connected with the data fusion processing module, the microwave ablation instrument is also connected with a microwave ablation needle inserted into the tissue in the ablation area, and the temperature prediction module and the microwave ablation power control module are operated on the data fusion processing module; the method overcomes the defects in the prior microwave ablation control method based on nuclear magnetic resonance, such as the long control closed loop period caused by the limited MRI temperature measurement sequence acquisition and reconstruction speed, the nonlinear change of the temperature rise rate caused by the sudden change of the tissue impedance, and the problems of over-temperature or under-temperature.

The embodiment of the application provides a kind of non-invasive ablation microwave thermotherapy device, belong to biomedical engineering industry in the microwave thermotherapy equipment technical field, including rack, solid microwave source, microwave transmission device, phased array microwave radiator, non-invasive temperature measuring device, treatment bed and positioning device. Through the three-dimensional coordinates of focus output by positioning device, drive treatment bed to complete lifting and horizontal displacement, make focus accurate alignment focusing area of phased array microwave radiator;Through the temperature data of non-invasive temperature measuring device, adjust output power or the phase distribution of phased array microwave radiator, realize positioning-ablation-real-time temperature measurement-regulation and control collaborative treatment. The whole treatment is without puncture insertion tissue, reduce patient wound, solve the technical defects that traditional microwave thermotherapy device cannot be realized in computer control phased array microwave under microwave imaging and CT, nuclear magnetic resonance image guidance, through microwave non-invasive temperature measurement at the same time through phased array rectangular microwave ablation treatment.

This invention provides an extracorporeal microwave ablation needle auxiliary fixation device, belonging to the field of medical auxiliary device technology. It includes two symmetrically distributed support rods, with bed clamps fixedly connected to the bottom ends of the support rods. A height-adjustable slide rail is provided between the two support rods, and a slide seat is slidably mounted on the slide rail. The slide seat has an insertion hole and a spherical cavity in its center, and a directional adjustment ball is fitted inside the spherical cavity. A through-hole is located at the top of the directional adjustment ball. This invention, through the design of the support rods, bed clamps, and adjustment components, achieves convenient installation and overall height adjustment of the auxiliary fixation device on the hospital bed. The U-shaped bed clamp at the bottom of the support rod, with locking bolts, can quickly clamp and fix to bed rails of different diameters. The threaded rod and guide rod in the adjustment components work together to drive the slide rail to rise and fall smoothly, aligning the height of the slide seat with the patient's puncture site, significantly improving the device's adaptability and installation efficiency in clinical operation.

This invention belongs to the field of medical device technology, specifically relating to an ablation needle. The ablation needle includes a handle, and at one end of the handle, an angle adjustment rod, a needle shaft, and a needle tip are fixed sequentially from proximal to distal. The angle adjustment rod, needle shaft, and needle tip are internally interconnected. A water tank is fixed inside the handle, and a coaxial cable is assembled inside the handle. The coaxial cable includes an inner conductor, an insulating layer, and an outer conductor arranged coaxially from the inside to the outside, with one end of the inner conductor and the insulating layer extending into the needle tip. The microwave ablation needle provided by this invention can simultaneously adapt to two microwave frequencies, 915MHz and 2450MHz, and these two microwave frequencies support two different ablation patterns. This allows the ablation pattern of the device to switch between a teardrop shape and an oblong shape. In clinical use, the position of the spiral element is adjusted according to the microwave frequency required, ensuring that the antenna size matches the microwave frequency, thus avoiding the need to replace the ablation needle due to microwave frequency adjustments.