29 results about "Radiofrequency ablation" patented technology

The invention discloses a radio frequency treatment comfort optimization method based on multi-modal data driving, and aims at solving the problems that in the prior art, subjective dependence of comfort evaluation is high, and systematic data support and optimization strategies are lacked. A multi-mode sensor is configured through a cloud server, treatment scheme data including thermal imaging, power output and pressure data are collected, and patient condition and environment data obtained from an authorization evaluation platform are combined. A preset comfort level analysis rule set and a multi-dimensional decision table are utilized to perform objective comfort level division and scoring on the treatment process, and based on the division result and the environment data, an ablation system technology is adopted to simulate and calculate the expected influence of different environment parameter combinations so as to determine the comfort level of the treatment process. And generating personalized environmental parameter optimization suggestions under the condition of meeting security constraints. According to the invention, objective and quantitative evaluation and intelligent environment regulation and control of the radio frequency treatment comfort are realized, and the standardization level of treatment and the patient experience are improved.

The application belongs to the technical field of biological medicine, and discloses an oxidation-reduction response type nanoparticle as well as a preparation method and application thereof. The nanoparticle takes a cationic lipid compound and an amphiphilic block polymer containing a disulfide bond as a composite carrier, and co-encapsulates active ingredients siPD-L1 and N-acetyl cysteine. The nanoparticle can be responsively disintegrated in a high-reduction microenvironment of a tumor, synchronously release the two active ingredients, realize the dual effects of reversing immunosuppression and scavenging active oxygen respectively, and synergistically inhibit the growth and metastasis of residual tumors after radiofrequency ablation of liver cancer. The preparation process is simple, the nanoparticle has good stability, high targeting and high biological safety, and provides a new effective strategy for the treatment of residual tumors after radiofrequency ablation of liver cancer.

The invention discloses an automatic DR detection method for an aero-engine conduit, electronic equipment and a storage medium, and the detection method comprises the steps: obtaining 3D point cloud data, carrying out the segmentation detection of the point cloud data, obtaining the coordinates of a grabbing point of a mechanical arm, enabling the mechanical arm to move to a DR detection region after grabbing the conduit, placing a welding line in the center of the DR detection region, and carrying out the detection of the DR. X-rays are started to carry out first DR detection, after the first DR detection is completed, a certain angle is rotated to carry out second DR detection, and after the second DR detection is completed, the mechanical arm moves the catheter to a detected area to be placed. According to the detection method, two DR detection images are obtained for one guide pipe welding seam, the detection efficiency is improved through automatic detection, and the labor intensity during detection is reduced.

The invention discloses a water-cooled needle-shaped radiofrequency ablation electrode which comprises a positive electrode needle body, a needle core, an insulating layer, a negative electrode layer, a negative electrode plate, a handle and a switching button module. The positive electrode needle body is a hollow long needle and is used for puncturing and transmitting radio frequency energy, and a discharge ablation section is arranged at the front end of the positive electrode needle body. The insulating layer and the negative electrode layer are sequentially solidified and attached to the outer side of the needle body to form a bipolar ablation circuit. A switching button module is arranged on the handle and can be switched between the negative electrode layer and the negative electrode plate, so that a bipolar or monopolar ablation circuit is formed. According to the system, two modes can be quickly switched on the same needle body, the supply pressure of cold saline water is adjusted through linkage of the mode detection module, it is ensured that the optimal cooling effect can be obtained in different modes, and the flexibility, accuracy and safety of an operation are improved.

The invention discloses a multi-pole water-cooling radiofrequency ablation needle, and relates to the technical field of medical instruments. Comprising a needle body, the two ends of the needle body are the tip end and the tail end respectively, two electrodes are arranged on the needle body in the axial direction and are the positive electrode and the negative electrode respectively, and the needle body is hollow; the handle is arranged at the tail end of the needle body; the insulating coating is arranged on the surface of the needle body, and the insulating coating is located between the positive electrode and the negative electrode; the power lines are arranged in the needle body, the first ends of the two power lines are connected with the positive electrode and the negative electrode respectively, and the second ends of the two power lines penetrate through the handle to be connected with a power connector. The multiple electrodes are arranged on the needle body, currents can flow between the adjacent currents on the needle body, a negative plate is not needed, the risk of injury to a patient is reduced, meanwhile, energy can be concentrated, the local heat production efficiency is higher, the heat diffusion range is controllable, and small focuses or fine parts can be accurately ablated.

The invention discloses a flexible anal fistula radiofrequency ablation electrode, which belongs to the technical field of anal fistula disease treatment medical instruments and comprises a flexible electrode, the flexible electrode is connected to a control handle through an electrode terminal, the control handle is connected with a plug through a wire, and the head end of the flexible electrode is arranged as an electrode metal head. The inner side of the electrode metal head is of a hollow structure and is fixedly provided with a thermocouple temperature sensor, the electrode metal head and the thermocouple temperature sensor are connected to the electrode wiring end through a flexible lead assembly, and the outer side of the flexible lead assembly is coated with an inner-layer insulating sleeve used for indicating the insertion depth. And the outer side of the inner-layer insulating sleeve is coated with an outer-layer transparent insulating sleeve of which the head and the tail are tightly attached to the electrode metal head and the electrode wiring end respectively. According to the flexible anal fistula radiofrequency ablation electrode, the clinical requirement of an anal fistula radiofrequency ablation electrode catheter used under an anal fistula mirror can be met, the electrode position and the ablation state can be accurately controlled conveniently, and the ablation treatment effect is guaranteed.

This invention relates to the field of endometrial radiofrequency ablation technology, specifically to an intelligent optimization method for endometrial radiofrequency ablation parameters based on real-time impedance feedback. This method synchronously acquires the instantaneous total power and instantaneous total admittance of the radiofrequency circuit in real time and constructs a sliding time window sequence; it performs local extremum normalization to eliminate dimensional differences, obtaining a two-dimensional phase space point cloud set; it uses the Vietoris-Rips algorithm to extract one-dimensional continuous coherence features, obtaining closed-loop feature values ​​of the point cloud; based on the closed-loop feature values ​​of the point cloud, window energy consumption, and admittance drop, it obtains the tissue dehydration characteristic index; finally, based on the real-time instantaneous total admittance, combined with admittance drop and the dehydration characteristic index, it makes a decision and outputs energy processing instructions. This invention can accurately distinguish between pseudo-high impedance caused by air bubbles and true deep dehydration penetration, ensuring thorough ablation while avoiding the risk of thermal damage.

The invention belongs to the field of biomedical engineering industry, and provides a low-temperature plasma radiofrequency ablation power regulation system based on vocal cord leukoplakia treatment, which comprises the following steps of: firstly, constructing an impedance topographic map of a vocal cord lesion and non-lesion area, planning an ablation route through clustering analysis, monitoring an impedance jump point during an operation, and judging an electrode pollution state; when pollution exists, an impedance jump point-pollutant area coupling model is established, pollution interference is stripped, the real impedance of the tissue is reversely deduced, and then the radiofrequency ablation power is adjusted in real time based on the model; the system realizes dynamic adaptation of power and real impedance of tissue, improves ablation accuracy, reduces normal vocal cord tissue damage, reduces postoperative recurrence rate, and ensures safety and effectiveness of surgery.

This application discloses a method, system, device, and medium for predicting thermal damage from radiofrequency ablation. The method involves inputting multiple ablation parameters to be predicted into a trained bi-branch prediction model. The bi-branch prediction model extracts linear features from the input ablation parameters through a first branch and performs feature cross-transformation on the input ablation parameters through a second branch to obtain nonlinear features. A fusion module then fuses the linear and nonlinear features to output a thermal damage prediction result including both a first and second dimension. In this application, linear feature extraction is performed through the first branch, and feature cross-transformation is performed through the second branch to capture nonlinear features. The fusion of the two branch outputs enables differentiated feature modeling for different dimensions of thermal damage prediction, effectively overcoming the shortcomings of existing models that struggle to accommodate the differences in multi-dimensional damage features, and significantly improving the accuracy and reliability of simultaneous multi-dimensional prediction of thermal damage.

1. The name of the design product: the graphical user interface of the display of radio frequency ablation operation of electronic equipment. 2. The use of the design product: for an electronic equipment. 3. The design points of the design product: the interface content of the graphical user interface. 4. The picture or photo that best shows the design points: change state figure 5. 5. The electronic equipment is of conventional design, and other views are omitted. 6. The use of the graphical user interface: for parameter setting and information display of radio frequency ablation operation. 7. Other circumstances that need to be explained: the front view of the design product displays the start-up interface, the front view displays the start-up self-checking progress, the system time is automatically detected after starting up, if the system time display error is detected, change state figure 1 is entered, change state figure 1 can set the system time, after clicking confirmation, change state figure 2 is entered, change state figure 2 can turn on / off the key prompt sound and set the screen brightness, after clicking "return", the electrode is automatically verified, if the electrode verification fails, change state figure 3 is entered, change state figure 3 prompts to replace the electrode, after removing the old electrode, change state figure 4 is entered, after installing the electrode and clicking the "confirmation" button in change state figure 4, change state figure 5 is entered, change state figure 5 displays the electrode type and life, after clicking the "confirmation" button in change state figure 5, whether the foot switch is connected is automatically detected, if the foot switch is not connected, change state figure 6 is entered, after connecting the foot switch and clicking "confirmation", change state figure 7 is entered, change state figure 7 can set the parameters, the activation switch on the radio frequency ablation instrument is turned on (not shown in the drawing), change state figure 8 is entered, change state figure 8 displays the treatment interface, if the activation switch is not released after the treatment time is over, change state figure 9 is entered, change state figure 9 prompts to release the activation switch.

This invention provides a vascular interventional robot for transcatheter radiofrequency ablation of the heart, relating to the field of cardiac radiofrequency ablation technology. The vascular interventional robot is configured to acquire historical ablation navigation path planning data and collect real-time ablation vessel data for navigation path planning, forming real-time ablation navigation path data; collect real-time mapping data for abnormal location identification; collect real-time ablation monitoring data and perform real-time monitoring analysis based on process control, forming real-time ablation monitoring results information; and acquire postoperative electrocardiogram data for matching and comparative analysis, forming postoperative test results data. This vascular interventional robot provides a reasonable and easily implemented method for path planning, ensuring smooth and efficient implementation of catheter path navigation in the early stages.

The utility model discloses a puncture stabilizing support for radiofrequency ablation. The puncture stabilizing support comprises a disc base, a guide rod and a protractor. One end of the guide rod is universally connected to the circle center of the disc base, the other end of the guide rod is supported by the protractor, one end of the protractor circumferentially slides around the circle center on the upper surface of the disc base, and the guide rod is clamped on the protractor and slides along the protractor; according to the utility model, on the basis of the disc base, a 360-degree range on a horizontal plane is covered, and the needle inserting direction on the horizontal plane can be determined through circumferential sliding of the protractor regardless of the determined needle inserting direction; on the basis, the arc-shaped ruler of the protractor is used as a positioning basis in a vertical plane of the guide rod; according to the device, the needle inserting angle is adjusted from the two dimensions of the horizontal plane and the vertical plane, all needle inserting routes are basically covered, any falling line guiding of the puncture needle can be achieved, and compared with a traditional supporting and stabilizing device, a surgeon can keep the needle inserting angle for a long time, and the one-time puncture success rate is increased.

This utility model discloses a foldable lead protective screen for DR (radiofrequency ablation) examinations. The screen comprises a protective screen assembly and electrically controlled support legs. The protective screen assembly includes a main screen and side screens connected by hinges, allowing for folding and unfolding. The main screen has an observation window for medical personnel. The electrically controlled support legs consist of a fixing block, a traction arm, a lower electric push rod, a triangular block, an upper electric push rod, and feet. The extension and retraction of the upper and lower electric push rods drive the traction arm and feet to rotate, enabling the support legs to unfold and retract, providing stable support for the screen and saving space when retracted. The screen is also equipped with omnidirectional casters for easy movement. This technical solution solves the problem of high center of gravity and poor stability of traditional protective screens, improving flexibility and convenience of use while meeting radiation protection requirements.

This invention discloses the preparation and application of radiofrequency thermoresponsive platinum ion crosslinked black phosphorus nanogel. The nanogel has a core-shell structure, comprising a core composed of a radiofrequency thermosensitive agent and chemotherapeutic drugs, and a shell constructed from a thermosensitive nanopolymer. The thermosensitive nanogel BP-Pt@PNA prepared using the above components exhibits radiofrequency thermosensitive properties. Simultaneously, the introduction of the thermosensitive nanopolymer improves the stability of the radiofrequency thermosensitive agent and chemotherapeutic drugs, enabling long-term drug retention and fully leveraging the synergistic effect of non-invasive radiofrequency thermotherapy and chemotherapy. This drug-loaded nanogel can achieve multimodal treatment applications, including non-invasive radiofrequency thermotherapy-chemotherapy synergistic antitumor therapy and invasive radiofrequency ablation-chemotherapy-vascular embolization synergistic antitumor therapy, demonstrating significant clinical translational potential.

The utility model relates to the technical field of medical instruments, and provides a radiofrequency ablation electrode needle which comprises a handle, a guide needle seat movably arranged on the handle and a connecting structure arranged on the guide needle seat and used for connecting the handle and the guide needle seat, the connecting structure comprises a clamping piece, the clamping piece is provided with an elastic body, and a certain included angle is formed between the elastic body and the clamping piece. The handle is provided with a clamping groove, the clamping groove is provided with a limiting groove corresponding to the elastic body, and the clamping piece is matched with the clamping groove, and the elastic body is in elastic clamping connection with the limiting groove, so that the handle is connected with the guide needle seat. According to the utility model, the handle part and the guide needle seat part are designed in a split manner and are connected through the connecting structure, so that the handle and the guide needle seat are quickly inserted and kept in a locking state, and when one part is damaged, the part is convenient to replace, thereby ensuring that the injection electrode needle can be normally used.

The radiofrequency ablation system comprises an ablation component, and the ablation component comprises a puncture component used for establishing a channel, a penetrating and removing component installed on the puncture component and an electrode tool bit installed on the penetrating and removing component; wherein the penetrating and withdrawing part comprises a penetrating and withdrawing guide part fixed on the puncture part and a penetrating and withdrawing handle located in the middle of the upper end of the penetrating and withdrawing guide part, the penetrating and withdrawing guide part comprises a first penetrating and withdrawing guide part or a second penetrating and withdrawing guide part, and the side face of the first penetrating and withdrawing guide part abuts against the puncture part; at least one end of the second penetrating and withdrawing guide piece is buckled on the penetrating component; wherein the penetrating and withdrawing handle is used for being connected with the ablation end of the electrode tool bit in an inserted mode and penetrates out of the far end of the penetrating and withdrawing handle. The penetrating and withdrawing guide piece is fixed to the puncture component, the puncture component, the penetrating and withdrawing component and the electrode tool bit form a whole with a stable structure, and the electrode tool bit keeps stable in the ablation process and conducts ablation accurately.

The utility model relates to the technical field of tumor ablation, in particular to an ultrasound-guided radiofrequency ablation puncture fixator which comprises a fixing frame, a moving plate, a fixing ring and an adjusting mechanism, the adjusting mechanism comprises four sliding assemblies and a locking assembly, each sliding assembly comprises a supporting frame, a rotating roller and a pulley, the fixing frame is provided with two sliding grooves, and the fixing frame is provided with two sliding grooves. The fixing ring is fixedly connected with the moving plate, the four sliding assemblies are arranged at the two ends of the moving plate and located at the two ends of the moving plate respectively, the supporting frame is fixedly connected with the moving plate, the rotating roller is rotationally connected with the supporting frame and the pulley, the pulley is located in the supporting frame, and the locking assembly is arranged below the moving plate. And the position of the movable plate on the fixing frame is adjusted through the adjusting mechanism, the adjusting process is simple, and then the practicability of the device is improved.

This invention discloses a steerable radiofrequency ablation and plasma ablation surgical forceps for laparoscopic surgery, relating to the field of medical device technology. It includes a proximal component for manipulation, a slender main body component that enters the body cavity, and a distal working component. The main body component includes a hollow sleeve, a pull rod slidably connected within the sleeve, and a gripping portion fixed to the outside of the sleeve. The segment of the sleeve near the gripping portion has an upper notch structure, at which a drive component for steering the working component is provided. By integrating a bipolar radiofrequency electrode and a localized liquid spray system on the same jaw structure, structural integration of both radiofrequency ablation and plasma ablation energy action modes is achieved. A unique sliding key joint structure decouples the axial sliding and circumferential rotation of the pull rod, allowing independent control of jaw opening and closing and working component steering without interference.

A device for treating a target lesion may include an elongate body comprising a tissue modification device on a distal end of the elongate body. The tissue modification device may include an electrode array and an expandable support structure configured to support the electrode array. When expanded, the expandable support structure is configured to space adjacent electrodes of the electrode array at a substantially equal distance. Further, when expanded, the electrode array is configured to generate one or more tissue modification energy fields around the expandable support structure when an electrical current is supplied to the electrode array. A method of treating a target lesion may include advancing a tissue modification device to a target tissue; expanding the tissue modification device to expand an electrode array; and generating a plurality of zones of radiofrequency (RF) fields through at least a part of the electrode array to ablate the target lesion.

The utility model relates to an irrigation and suction assembly and an ablation electrode, and belongs to the technical field of medical instruments. The ablation electrode comprises a body and a flushing and sucking assembly, the flushing and sucking assembly comprises a flushing and sucking pipe, a sucking pipe and a three-way connector, the three-way connector is arranged between the flushing and sucking pipe and the sucking pipe and can be used in cooperation with a liquid injection instrument, and the flushing and sucking pipe is selectively communicated with the sucking pipe or the liquid injection instrument through the three-way connector; the flushing pipe penetrates through the body and extends out of the front end of the body. According to the ablation electrode provided by the utility model, the body can complete radiofrequency ablation work, the flushing and sucking assembly can integrate a structure for realizing a sucking function and a structure for realizing a flushing function into a whole, the appearance is thin, the operation space can be effectively saved, and the advantages are reflected more obviously especially in narrow cavities such as nasal cavities.

The application discloses an endoscopic monopole plasma radio frequency ablation operation electrode knife head and belongs to the field of digestive and respiratory departments. The electrode knife head comprises a flexible part, an electrode head and a handle, one end of the flexible part is connected with the electrode head, the other end of the flexible part is connected with the handle through a protection sleeve, a water injection interface is arranged on the handle, the water injection interface is connected with a water injection hose, the front end of the handle is provided with the protection sleeve, a plurality of water outlet holes are arranged on the side surface of the electrode head, the flexible part comprises a plastic-coated multi-strand steel wire, a spring tube and an outer sheath tube, one end of the inner side of the electrode head extends to the inside of the flexible part and is connected with the plastic-coated multi-strand steel wire through a connecting pipe, a through groove is arranged on the connecting pipe, and cavities are formed between the outer walls of the plastic-coated multi-strand steel wire and the connecting pipe and the inner wall of the flexible part. The flexible support design of the spring tube and the outer sheath tube is combined, the endoscopic multi-angle steering requirement is adapted, the electrode knife head can be deeply inserted into a curved cavity or a complex anatomical site, and mechanical damage of a rigid instrument to the cavity can be avoided.

The embodiment of the specification provides an information processing device and method for an ophthalmic radiofrequency ablation electrode. The device comprises an inspection module used for performing performance inspection on an ablation electrode connected with the device; the encryption module is used for encrypting at least one part of information related to the ablation electrode; the write-in module is used for writing all or part of encrypted information into the ablation electrode; and the reading module is used for decrypting and reading the written information of the ablation electrode connected with the equipment.

The invention provides a vascular intervention robot for transcatheter cardiac radiofrequency ablation, and relates to the technical field of cardiac radiofrequency ablation. The vascular intervention robot is configured to obtain historical ablation navigation path planning data, collect real-time ablation blood vessel data of an object for navigation path planning, and form real-time ablation navigation path data; collecting real-time mapping data of an object, and calibrating an abnormal position; collecting real-time ablation monitoring data, and performing real-time monitoring analysis based on process control to form real-time ablation monitoring result information; postoperative electrocardiogram data are obtained, matching comparative analysis is carried out, and postoperative examination result data are formed. According to the vascular intervention robot, a reasonable and easy-to-implement mode is provided for path planning, and it is guaranteed that early-stage catheter path navigation can be smoothly and efficiently implemented.

The invention relates to the technical field of machine vision, in particular to a polycystic kidney radiofrequency ablation surgical treatment planning system based on ultrasonic images, which analyzes the distribution condition of time sequence hue angle values of pixel points in all continuous frames of ultrasonic images through a hue fluctuation intensity acquisition module to obtain the hue fluctuation intensity of the pixel points; the region division module is used for dividing a cyst region, a coverage region and a blood vessel region of the ultrasonic image based on the hue fluctuation intensity; the covered blood vessel recognition module is used for recognizing covered blood vessel regions in the cyst region and the coverage region according to the hue fluctuation intensity of the pixel points in the cyst region and the coverage region and the number of the pixel points in the blood vessel region; and the puncture path planning module plans a puncture path. According to the system, by judging the confidence degree that each pixel point is the blood vessel region among the multiple frames of ultrasonic images, the recognition accuracy of the blood vessel region, especially the blood vessel region interfered by artifacts, is improved, and then the reliability of puncture path planning is improved.

The invention discloses a nano-drug for improving the radiofrequency ablation curative effect of liver cancer as well as a preparation method and application of the nano-drug. An MELK inhibitor OTS167 is entrapped by a pH-responsive silicon-based nano-carrier, the MELK inhibitor OTS167 and superparamagnetic iron oxide are jointly loaded in nano-particles, and the surface of the carrier is modified with annular RGD polypeptide through covalent linkage, so that targeted recognition of high-expression integrin alpha v beta 3 in tumor cells and neovascularization of the tumor cells is realized; therefore, the active enrichment capability of the nanoparticles in tumor tissues is enhanced. The SPIO is used as a magnetic resonance imaging core of the nanoparticles and endows the nanoparticles with good T2 weighted imaging capability, and real-time monitoring of in-vivo distribution of the nanoparticles is realized. The compound can trigger the selective release of OTS167 in an acidic microenvironment, enhance the local drug effect of tumors and reduce the extratarget toxicity. In a liver cancer mouse model, the nano-drug combined with RFA can significantly inhibit tumor growth and prolong survival, and shows a good application prospect.

The invention discloses a radiofrequency ablation or freezing fixing support which comprises at least three foot supports, the tops of the foot supports are provided with fixing parts, and the bottoms of all the foot supports are not arranged on the same straight line; the foot support is provided with a first limiting structure and a second limiting structure, the bottom of the foot support is suitable for being fixed to the periphery of a puncture site, the first limiting structure is suitable for limiting the rotation range of the bottom of the foot support, and the second limiting structure is suitable for limiting the foot support to conduct telescopic adjustment. The movable ends of the tops of all the foot supports are fixed through the fixing parts so as to form movable positioning holes, and in the using process, the tops of the foot supports are dragged to enable the connecting line direction of the positioning holes and puncture sites to be the same as the puncture direction of a puncture needle by changing stretching and retracting and / or rotating of the foot supports. And then the second limiting structure fixes the lengths of the foot supports, so that the positioning holes are fixed.

The invention discloses an imaging plate fixing support for large container ray DR detection, and relates to the technical field of ray detection. The imaging plate fixing support for large container ray DR detection comprises a support body, the support body comprises a mounting plate, the top of the mounting plate is rotationally connected with a fluted disc, the top of the fluted disc is fixedly connected with a balance adjusting mechanism, and the balance adjusting mechanism comprises a supporting column, a transverse toothed plate, a movable base and a balance frame. The transverse toothed plate is fixedly connected to the top of the supporting column, and teeth are fixedly connected to the bottom of the transverse toothed plate. According to the imaging plate fixing support for large container ray DR detection, by arranging the balance adjusting mechanism, the imaging plate mounting mechanism, the stable locking mechanism and the vertical adjusting mechanism, the overall gravity center adjustment of the support is achieved when the position of an imaging plate is adjusted, the overall stability of the support is improved, and meanwhile the positioning precision of the imaging plate is improved.

The utility model relates to medical instrument technical field, more particularly, a special compression device of femoral vein puncture radiofrequency ablation patient is provided, including pure cotton cloth strip, first elastic cloth strip, second elastic cloth strip, third elastic cloth strip, fourth elastic cloth strip and second button etc.