42 results about "Radiofrequency ablation device" patented technology

The utility model provides an ophthalmology radiofrequency ablation instrument, which is used for providing radiofrequency energy for an ablation electrode connected with the radiofrequency ablation instrument, and comprises a control device used for controlling each component of the radiofrequency ablation instrument so as to control the radiofrequency ablation instrument to generate the radiofrequency energy; the radio frequency generator is connected with the control device and used for generating radio frequency energy based on a control instruction of the control device; the impedance detection device is connected with the ablation electrode and the control device, and is used for detecting impedance information before, in or after the radio frequency energy is output and transmitting the impedance information to the control device; the information reading unit is connected with the control device and used for obtaining electrode information of the ablation electrode and transmitting the electrode information to the control device when the ablation electrode is connected with the radio frequency ablation instrument.

The embodiment of the specification provides a radiofrequency ablation device for ablating ocular tissue, the device comprising: an electrode comprising an electrode needle with a needle tip, the needle tip of the electrode needle being configured to be able to extend into an eye; the ablation host is connected with the electrode through a transmission line, and the ablation host comprises a control module, a radio frequency module and an information reading module; two ends of the radio frequency module are respectively connected with the electrode and the control module, and the radio frequency module is configured to provide radio frequency energy for the electrode based on an instruction of the control module; the two ends of the information reading module are connected with the electrodes and the control module respectively, and the information reading module is configured to be capable of reading electrode information of the electrodes and transmitting the electrode information to the control module.

The invention relates to a radiofrequency ablation catheter and a radiofrequency ablation device. The radiofrequency ablation catheter comprises a main body tube; a control handle; the mesh basket structure has an expansion configuration and a contraction configuration and can be switched between the expansion configuration and the contraction configuration, the mesh basket structure comprises a reference electrode, a supporting tube, a plurality of flexible branches and a plurality of ablation electrodes, the reference electrode is arranged in the mesh basket structure, the supporting tube is arranged in the main body tube, and the flexible branches are arranged in the main body tube. Each flexible branch is provided with a plurality of ablation electrodes which are arranged at intervals in the length direction of the flexible branch; the mesh basket structure is in the contraction configuration, a first impedance value exists between the ablation electrode and the reference electrode, the mesh basket structure is in the expansion configuration, a second impedance value exists between the ablation electrode and the reference electrode, and the attaching property of the ablation electrode to the inner wall of the blood vessel is determined according to the ratio of the second impedance value to the first impedance value. The target tissue is efficiently treated, and the ablation depth of the radiofrequency ablation catheter is improved.

The invention provides a radiofrequency ablation instrument for treating heart diseases, and relates to the technical field of medical equipment. The radiofrequency ablatometer comprises a man-machine interaction device, a data processing device, a radiofrequency energy generating device, an ablation device, an ablation parameter acquisition device, a twelve-lead ECG signal acquisition device, an ultrasonic image acquisition device, a vital sign monitoring acquisition device and a circulating cooling device which are respectively connected with the radiofrequency energy generating device and the ablation device, the cooling device is used for supplying cooling liquid to the ablation device; the data processing device controls power output of the radio frequency energy generating device according to the twelve-lead ECG signals and ablation parameters, and the man-machine interaction device displays ultrasonic images, vital sign parameters and ECG data. According to the invention, concentrated display and linkage analysis of ultrasonic images, twelve-lead ECG signals and vital sign parameters are realized for the first time, and the device can be widely applied to percutaneous intracardiac radiofrequency ablation treatment of hypertrophic cardiomyopathy, cardiac tumor and other diseases, and has extremely high clinical application value.

The utility model discloses an ophthalmology radiofrequency ablation training model which is used for assisting an ophthalmology radiofrequency ablation electrode used in cooperation with an ophthalmology radiofrequency ablation instrument in simulated puncture training on eyeballs, and the ophthalmology radiofrequency ablation electrode is provided with an electrode needle and an impedance detection unit electrically connected with the electrode needle. The ophthalmology radiofrequency ablation training model comprises a base and an eyeball model, wherein the eyeball model comprises a simulated sclera structure, a simulated ciliary body structure and simulated aqueous humor; the simulated sclera structure and the simulated ciliary body structure are made of conductive materials, the simulated sclera structure has a first impedance range, the simulated ciliary body structure has a second impedance range, and the simulated aqueous humor has a third impedance range; when the needle point of the electrode needle pierces into the simulated sclera structure, the simulated ciliary body structure and the simulated aqueous humor, the impedance detection unit can feed back an impedance value, and an operator can judge whether the piercing position and the piercing depth meet requirements or not according to the impedance value.

1. The name of the design product: radio frequency ablation instrument. 2. The use of the design product: for the treatment of solid tumors, cardiovascular diseases. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model provides a radiofrequency ablation instrument which comprises an electrode base body, a first electrode, a second electrode, a third electrode and a fourth electrode. The handle is connected with the electrode base body, and the handle can rotate; the bending control assembly is arranged on the handle and is connected with the deformation part; when the handle rotates, the bending control assembly can be driven to rotate, and the bending control assembly drives the deformation part to bend. According to the radiofrequency ablation instrument, the bending amplitude of the deformation part can be controlled by rotating the handle, so that the position of the deformation part can be adjusted according to different patients, the matching degree of different patients is improved, the treatment effect is improved, and the operation risk is reduced.

This application relates to the field of medical devices and discloses a needle withdrawal system for radiofrequency ablation devices that avoids scarring. Based on a standard radiofrequency ablation device, the system integrates a needle position detection device (real-time monitoring of depth and speed) and a needle tip temperature sensor. During needle withdrawal, the radiofrequency power is dynamically adjusted according to the withdrawal speed (higher power for faster speed); when the needle tip depth is less than a predetermined threshold (close to the body surface), the radiofrequency output is automatically stopped and a prompt to wait for cooling occurs; once the temperature drops below a safe threshold, a prompt indicates that the needle can be completely withdrawn. Through this closed-loop control, the thermal coagulation and end-point cooling processes of the needle track are precisely managed, effectively preventing thermal damage to the skin and subcutaneous tissue and significantly reducing scar formation.

A radiofrequency ablation catheter (100) and a radiofrequency ablation device. The radiofrequency ablation catheter (100) comprises a radially contractible and expandable electrode stent (20), a connecting tube (30), and a core wire (40). The proximal end of the connecting tube (30) is connected to the distal end of the electrode stent (20), and the connecting tube (30) has a first lumen (34) running through the proximal and distal ends thereof. The core wire (40) movably runs through the electrode stent (20) and the first lumen (34). The core wire (40) is provided with a first limiting portion (41), the first limiting portion (41) being located in the first lumen (34); and the inner wall of the first lumen (34) is correspondingly provided with a second limiting portion (35). When the first limiting portion (41) abuts against the second limiting portion (35) and the central wire (40) moves from the distal end to the proximal end, the electrode stent (20) is switched from a contracted state to an expanded state. The radiofrequency ablation catheter (100) can reduce the risk of vascular injury, improve the accuracy of the core wire (40) in accessing a target branch vessel, and thus improve the ablation efficiency of radiofrequency ablation.

The application discloses a guide wire ablation electrode, a first ablation device, a second ablation device and an ablation method, and relates to the field of medical instruments.The guide wire ablation electrode comprises a guide wire inner core, a working end, a connector and an insulating layer, and has the functions of guiding, developing and ablation.The first ablation device comprises the guide wire ablation electrode, a first endoscope, an imaging device, a radio frequency ablation instrument and an ablation electrode, a center of an obstruction part is ablated to form a channel by the working end of the guide wire ablation electrode, the working head end of the ablation electrode is guided into the channel, a larger range of ablation is carried out on the obstruction part, and the treatment of patients with serious obstruction is realized.The second ablation device comprises the guide wire ablation electrode, a second endoscope and the radio frequency ablation instrument, the second endoscope can continuously visually observe the ablation effect during the ablation process, the working end of the guide wire ablation electrode can visually and accurately carry out multi-point repeated ablation on the obstruction part, the damage to non-treatment parts is small, and the safety is high.

The present invention provides a data processing method, device, system, equipment and storage medium for radiofrequency ablation. The data processing method includes: obtaining a three-dimensional anatomical model corresponding to a target object; constructing a medium distribution model of the cooling medium in the three-dimensional anatomical model based on the three-dimensional anatomical model and the description information of the cooling medium; constructing a temperature change model corresponding to the target object based on the constructed medium distribution model and the radiofrequency energy released by the acquired radiofrequency ablation device at a second position point in the three-dimensional anatomical model; combining the simulated cooling position points, the position points to be ablated and the temperature change model preset in the three-dimensional anatomical model, predicting the temperature change of the tissue in the target object during the radiofrequency ablation process.

The present invention relates to a radiofrequency ablation device, comprising a transmission tube and a plurality of ablation arms; the plurality of ablation arms are respectively connected to the transmission tube, the plurality of ablation arms are collectively ring-shaped, the plurality of ablation arms are respectively provided with ablation parts, the ablation parts are electrically connected to ablation wires, the ablation wires are passed through the ablation arms and the tube walls of the transmission tubes, and the ablation wires are used to connect radiofrequency equipment. The radiofrequency ablation device can guide the ablation segments of the plurality of transmission tubes to fit the pulmonary vein orifices during atrial fibrillation treatment surgery, so as to form a ring ablation, and the operation is simple and convenient, which can greatly shorten the ablation surgery time, is conducive to wide promotion, and meets the surgical needs of a large number of atrial fibrillation patients. In addition, in addition to isolating the pulmonary vein electrical signals, the radiofrequency ablation device can also make a certain degree of improvement to the autonomic nerve plexus outside the pulmonary vein orifices, thereby further improving the effectiveness of atrial fibrillation ablation surgery.

The invention relates to a multi-electrode radiofrequency ablation device and a control method thereof.The multi-electrode radiofrequency ablation device comprises a first electrode, a second electrode and a neutral electrode, and the first electrode, the second electrode and the neutral electrode form a first working mode and a second working mode; wherein in the first working mode, the first electrode serves as a radio frequency output source, the second electrode is grounded, and the neutral electrode is idle; in a second working mode, the first electrode and the second electrode serve as radio frequency output sources, and the neutral electrode is grounded; when radiofrequency ablation treatment is carried out, the first working mode and the second working mode periodically and alternately work, and the problem that the ablation range of a traditional method is limited is solved through the periodically-alternate working modes.

This application provides a system for performing radiofrequency ablation surgery, relating to the field of medical device technology. The system includes a puncture surgery navigation and positioning subsystem for puncture positioning and navigation, and a radiofrequency ablation device electrically connected to the puncture surgery navigation and positioning subsystem. The puncture surgery navigation and positioning subsystem includes a positioning manipulator with a restraint at its front end. The radiofrequency ablation device includes a radiofrequency electrode needle and a radiofrequency generator electrically connected to each other. The puncture surgery navigation and positioning subsystem is configured to send a first trigger signal to the radiofrequency generator when it detects that the radiofrequency electrode needle, inserted through the restraint, has reached the puncture target point. This causes the radiofrequency generator to output radiofrequency current through the radiofrequency electrode needle based on the first trigger signal, acting on the ablation target. This technical solution improves the overall efficiency of radiofrequency ablation surgery.

The present application relates to the field of ophthalmic radio frequency ablation and provides an ophthalmic radio frequency ablation system, a radio frequency ablation instrument, and a control method therefor. The radio frequency ablation system comprises: an ablation electrode comprising a sharp-tipped electrode needle for puncturing ocular tissues; and a radio frequency ablation host comprising a control module, a radio frequency module, an input / output module, an impedance detection module, and an information reading module. The radio frequency module is used for providing radio frequency energy for the ablation electrode connected to the radio frequency ablation host. The impedance detection module is used for detecting impedance information of the ocular tissues during ablation. The information reading module is used for acquiring electrode information of the ablation electrode and / or writing use information of the ablation electrode recorded by the radio frequency ablation host into the ablation electrode. This ophthalmic ablation system can not only carry out precise radio frequency ablation therapy on different ocular tissues and simplify the operation steps and reduce difficulty of users, but also determine whether radio frequency ablation conditions are met or not and thereby to ensure the safety of the radio frequency ablation therapy process.

The present invention provides a radiofrequency ablation device and a control method. The radiofrequency ablation device includes: a catheter body; at least two electrodes, which are distributed at the first end of the catheter body, and any two of the at least two electrodes are insulated from each other; except for a first preset electrode among the at least two electrodes, the other electrodes are all electrically connected to at least one adjustment device. The at least one adjustment device is sleeved on the second end of the catheter body. At least one target electrode is selected from the other electrodes through the at least one adjustment device. The at least one target electrode and the first preset electrode form an electrode group, and the electrode group ablates the target tissue between the electrode groups according to the received radiofrequency signal. The target electrode is any one of the other electrodes. The solution of the present invention can achieve precise control of ablation areas at different positions, reduce the missed areas, and ensure complete ablation of the lesion area.

1. Name of the product in this design: Cardiac Radiofrequency Ablation Device. 2. Purpose of this design: For use in medical devices, connected to an ablation needle, for radiofrequency ablation treatment of heart diseases. 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 utility model relates to a radio frequency ablation system which comprises a radio frequency ablation instrument, an ablation catheter, a current detection device and a perfusion pump, an electrode is arranged on the ablation catheter, cold saline water is output into the ablation catheter through the perfusion pump, the temperature of the electrode of the ablation catheter can be effectively reduced, and the ablation effect is improved. Further, the risk of thrombus and pericardial tamponade can be effectively reduced; besides, a current signal of radio frequency energy output when the radio frequency ablation instrument is in a working state is collected in real time through a current detection device, so that a perfusion pump can switch a perfusion mode according to the received current signal to adjust the flow velocity of output cold saline water; therefore, an operator does not need to manually switch the perfusion state of the perfusion pump according to the state of the radiofrequency ablation instrument, and the surgical risk can be further effectively reduced.

The invention relates to a radiofrequency ablation device, a radiofrequency ablation control method, computer equipment, a storage medium and a computer program product, electrocardiosignals are obtained through a sensing module and sent to a control module, the control module controls a radiofrequency output module to output radiofrequency energy under the condition that the electrocardiosignals meet the heart rate range requirement condition, and the radiofrequency energy is transmitted to the radiofrequency ablation control module. The radio frequency energy output by the radio frequency output module is transmitted to the first target tissue through the first catheter, and the pulse stimulation output module is controlled to output pulse stimulation energy under the condition that the electrocardiosignal does not meet the heart rate range requirement; the pulse stimulation energy output by the pulse stimulation output module is transmitted to the second target tissue through the second catheter, the pulse stimulation output module can be controlled to output the corresponding pulse stimulation energy according to the electrocardiosignal obtained in real time, and accurate control over the output energy of the radio frequency equipment is achieved.

The application belongs to the technical field of testing, and specifically provides a simulation device and a testing method for radio frequency ablation instrument testing. The simulation device for radio frequency ablation instrument testing comprises a water pool, a test model, a clamping mechanism and a driving mechanism. The test model is fixed in the water pool, and the driving mechanism drives the catheter to reciprocate along the test channel formed by the test model through the clamping mechanism to perform bending fatigue testing. The test model comprises a first test section and a second test section which are continuous but have opposite bending directions. During testing, the test section of the catheter can be subjected to bending fatigue testing in the first test section and the second test section in turn by changing the stroke range of the reciprocating motion of the test section of the catheter through the driving mechanism, and the rotation or re-clamping of the catheter is not required during the whole process. In this way, the manual operation steps are eliminated, which helps to realize the automation of the testing process, and the unattended operation can be realized during long-term durability testing.

The present application relates to a kind of radio frequency ablation equipment, it includes electrode, balloon and delivery tube;The electrode is in net shape, with the contraction state of being shrunk together when being constrained, and the expansion state of being automatically expanded outward when losing constraint, which is connected with the external electrical connector by electrode lead;The balloon is located in the inside of the electrode, and pushes against the electrode when in the inflation state;The delivery tube includes outer tube and inner tube, and the electrode lead is located between the outer tube and inner tube, and the delivery tube further includes balloon catheter communicated with one end of the balloon, which is located in the inside of the inner tube and has gap between the inner tube.When electrode is delivered to target position, it can be automatically unfolded and form good abutment effect with the inner wall of bronchus by the support of balloon.

The present invention discloses a radiofrequency ablation handle, comprising a shell and a radiofrequency ablation electrode installed in the shell, the front end of the radiofrequency ablation electrode extending out of the shell; the radiofrequency ablation electrode is cylindrical as a whole, comprising an electrode positive pole located in the center, an insulating sleeve arranged on the periphery of the electrode positive pole, and an electrode negative pole arranged on the periphery of the insulating sleeve; the electrode positive pole, the insulating sleeve, and the electrode negative pole are coaxial, and the electrode positive pole and the electrode negative pole can slide relative to each other. After the radiofrequency ablation electrode is energized, an ablation zone is generated between the electrode positive pole and the electrode negative pole, and the ablation zone is used to act on the ciliary body to reduce the production of aqueous humor; the shell is also connected to a pushing mechanism, and the pushing mechanism is used to adjust the distance between the front end of the electrode positive pole and the front end of the electrode negative pole. In the present invention, the pushing mechanism accurately adjusts the depth of the radiofrequency ablation electrode inserted into the eye to adapt to the eyeballs of different patients and achieve the purpose of precise ablation. The present invention also provides a radiofrequency ablation device that is easy to operate and use.

1. The name of the product under this design: radiofrequency ablation device. 2. Purpose of the product with this design: medical device, used in conjunction with an ablation needle for ablation surgery. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The radiofrequency ablation device comprises a sheath tube unit, a guide tube unit and an electrode needle unit, under the condition that the guide tube unit is arranged in the sheath tube unit, the far end of the electrode needle unit is far away from the far end of the guide tube unit and reaches a radiofrequency ablation position through an opening element of the sheath tube unit, and the electrode needle unit conducts radiofrequency ablation operation. The radiofrequency ablation device has the advantages that a single handheld terminal is formed through integrated design of puncture, guide and ablation in radiofrequency ablation, errors caused by cooperation of multiple steps are eliminated, meanwhile, the structure is short in learning curve and fast to operate, and in the process, the electrode needle unit can play a role in radiofrequency ablation and can complete puncture of a target ablation position at the same time; the purpose of accurately conveying the electrode to the ablation position is achieved.

The invention relates to the field of tumor treatment devices, in particular to a laser radiofrequency ablation device and a control method. Comprising a combined body, a steering assembly, a sleeve and a driving assembly, two guiding grooves are formed in the inner surface of a third guiding unit in the combined body, two guiding protrusions are arranged on the outer surface of a first guiding unit, and the width of the guiding grooves is gradually reduced from the middle positions of the guiding grooves along the two ends of the guiding grooves; every two adjacent guide assemblies are movably connected in sequence, and the guide protrusions on one guide assembly abut against the guide grooves in the other adjacent guide assembly. The friction coefficient is different when the guide protrusion rotates by different angles in the guide groove, when the guide assembly swings within a certain angle range, the friction force between the guide protrusion and the guide groove is small, the guide assembly can swing rapidly, when the guide assembly swings within another angle range, the friction force between the guide protrusion and the guide groove is large, and therefore when the friction force is large, the guide assembly can swing rapidly. And accurate adjustment and positioning are facilitated.

The present invention discloses a radiofrequency ablation handle, comprising a shell and a radiofrequency ablation electrode installed in the shell, wherein the front end of the radiofrequency ablation electrode extends out of the shell; the radiofrequency ablation electrode is cylindrical as a whole, comprising an electrode positive pole, an insulating sleeve and an electrode negative pole; after the radiofrequency ablation electrode is energized, an ablation band is generated between the electrode positive pole and the electrode negative pole, and the ablation band is used to act on the ciliary body to reduce the production of aqueous humor; the shell is also connected to a pushing mechanism, which is fixedly connected to the electrode positive pole, and the electrode negative pole is fixedly connected to the shell, and the pushing mechanism can drive the electrode positive pole to move back and forth, and adjust the distance between the front end of the electrode positive pole and the front end of the electrode negative pole. In the present invention, the pushing mechanism accurately adjusts the depth of the radiofrequency ablation electrode inserted into the eye to adapt to the eyeballs of different patients and achieve the purpose of precise ablation. The present invention also provides a radiofrequency ablation device, which is easy to operate and use.

The embodiment of the invention provides an eye radiofrequency ablation instrument and a control method thereof. The radiofrequency ablation instrument comprises a control module, a radiofrequency module, an impedance detection module and an information reading module, the control module is used for communicating with the radio frequency module, the impedance detection module and the information reading module so as to control the radio frequency ablation instrument to generate radio frequency energy; the radio frequency module is used for generating radio frequency energy based on a control instruction of the control module; the impedance detection module is used for detecting impedance information before, in or after radio frequency energy output; the information reading module is used for obtaining electrode information of the ablation electrode when the ablation electrode is connected with the radiofrequency ablation instrument.

This utility model relates to the field of medical aesthetics technology, specifically disclosing an ion radiofrequency ablation device for removing eye bags. The device includes a mask with a first cavity and a second cavity inside. The first cavity is located above the second cavity, and a connecting pipe connects the first and second cavities. An ablation component is located at the rear end of the mask. The ablation component includes a slider movably connected inside the first cavity, a connecting rod fixedly connected to the rear end of the slider, and a circular frame fixedly connected to the rear end of the connecting rod. A sealing block is movably connected inside the second cavity, and an ablation module is fixedly connected to the rear end of the sealing block. When performing ablation for eye bag removal after wearing the mask, the device ensures that the probe remains in close contact with the skin surface, preventing the distance between the probe and the skin from affecting the ablation process and causing burns or scalds, thereby improving the efficiency of the eye bag removal procedure.

The invention relates to a radiofrequency ablation device which comprises a sheath tube unit, a guide tube unit and an electrode needle unit. The far end of the guide tube unit is exposed through the opening element of the sheath tube unit, the far end of the electrode needle unit is far away from the far end of the guide tube unit and reaches a radiofrequency ablation position, and the electrode needle unit carries out radiofrequency ablation operation. The radiofrequency ablation device has the advantages that a single handheld terminal is formed through integrated design of puncture, guide and ablation in radiofrequency ablation, errors caused by cooperation of multiple steps are eliminated, meanwhile, the structure is short in learning curve and fast to operate, and in the process, the electrode needle unit can play a role in radiofrequency ablation and can complete puncture of a target ablation position at the same time; the purpose of accurately conveying the electrode to the ablation position is achieved.

1. Name of the product in this design: Radiofrequency Ablation Device. 2. Application of this design: This design is intended for use as an internal medicine medical device for radiofrequency ablation of diseased tissue in patients. 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.