30 results about "Radiofrequency ablation device" patented technology

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 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.

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 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 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.

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.

Embodiments of the present invention provide a radiofrequency ablation catheter and a radiofrequency ablation device, relating to the technical field of radiofrequency ablation. The radiofrequency ablation catheter includes a catheter body, a conductor wire, and a light source. The conductor wire is disposed on the outer wall of the catheter body, and the light source is disposed in the catheter body. When performing a radiofrequency ablation catheter operation, for example, for varicose veins, after powering the light source and making it emit light, the light emitted by the light source can penetrate through the blood vessel and the skin and be observed by the operator with the naked eye to determine the position of the conductor wire on the catheter body. Furthermore, the conductor wire can be accurately delivered to the lesion site, and a high-frequency circuit is delivered to the conductor wire through a radiofrequency ablation instrument to achieve the purpose of tissue ablation. That is, the radiofrequency ablation catheter can accurately deliver the radiofrequency ablation catheter to the lesion site without the need to rely on external auxiliary observation equipment to achieve the purpose of tissue ablation.

The invention discloses a hip bleeding hemostasis robot, and belongs to the technical field of medical auxiliary instruments, the hip bleeding hemostasis robot comprises an automatic mechanical arm, a bionic finger mechanical arm is arranged on the automatic mechanical arm, a radio frequency ablation mechanism is arranged on the automatic mechanical arm, and the radio frequency ablation mechanism comprises a rotating assembly, an angle adjusting assembly and a radio frequency ablation module; the rotating assembly is connected to the portion, beside the bionic finger mechanical arm, of the automatic mechanical arm, the angle adjusting assembly is arranged on the rotating assembly, the radiofrequency ablation module is detachably connected to the angle adjusting assembly, and a position mounting mechanism for mounting the automatic mechanical arm is arranged at the bottom of the automatic mechanical arm. And the automatic mechanical arm is provided with a positioning system for identifying a bleeding part. In the ablation process, the angle and the position of the radiofrequency ablation module can be driven to change, the radiofrequency ablation device can be attached to the trend of a complex blood vessel, the ablation accuracy is improved, the ablation range is expanded, the hemostasis effect is enhanced, local heat damage is reduced, and surrounding tissue is protected.

The invention discloses a radiofrequency ablation instrument with an adjustable end angle, comprising a conductive tube which is used for connecting one pole of alternating current and comprises a first conductive steel tube, a bendable component and a second conductive steel tube which are hinged in sequence; the tool bit is used for being connected with the other pole of the alternating current and installed in the end, away from the bendable assembly, of the first conductive steel pipe, and an axial through flow guide hole is formed in the tool bit. The operating handle is connected with one end, far away from the bendable assembly, of the second conductive steel pipe, and an adjusting assembly for adjusting the bending degree of the bendable assembly is arranged on the operating handle; one end of the steel wire assembly is fixed in the bendable assembly, and the other end is connected with the adjusting assembly; and the conducting wires respectively penetrate through the operating handle and the whole conductive tube and are respectively and electrically connected with the cutter head and the conductive tube. The angle of the knife head can be adjusted when the knife head is used, a single surgical instrument can meet surgical requirements, radiofrequency ablation instruments with different angles do not need to be replaced during surgery, surgical cost is reduced, and surgical efficiency is improved.

The embodiment of the present application provides a kind of radiofrequency ablation catheter and radiofrequency ablation equipment.The radiofrequency ablation catheter includes the electrode support that can be radially contracted and expanded, connecting pipe and center wire;The proximal end of connecting pipe is connected with the distal end of electrode support, and connecting pipe has first lumen through its proximal end and distal end;Center wire is movably threaded in electrode support and first lumen;First limiting portion is provided on center wire, and first limiting portion is located in first lumen, and the inner wall of first lumen is correspondingly provided with second limiting portion;When first limiting portion and second limiting portion abut, and center wire moves from distal end to proximal end direction, electrode support is switched from contracted state to expanded state.The technical scheme provided by the present application can reduce the risk of damaging blood vessels, improve the accuracy of center wire selecting target branch blood vessels, and thus improve the ablation efficiency of radiofrequency ablation.

The invention relates to the field of medical equipment, and discloses a radiofrequency ablation equipment needle withdrawing system capable of avoiding scars. According to the system, a needle position detection device (real-time monitoring depth and speed) and a needle point temperature sensor are integrated on the basis of standard radiofrequency ablation equipment. During needle withdrawing, the radio frequency power is dynamically adjusted according to the needle withdrawing speed (the higher the speed is, the higher the power is); when the needle point depth is smaller than a preset threshold value (close to the body surface), radio frequency output is automatically stopped, and waiting for cooling is prompted; and after the temperature is reduced to be below a safety threshold value, the needle body can be completely pulled out. Through closed-loop control, the needle passage thermal coagulation and tail end cooling process is accurately managed, thermal damage to the skin and subcutaneous tissue is effectively prevented, and scar formation is remarkably reduced.

The embodiments of the present invention relate to the field of radio frequency ablation, and disclose a radio frequency signal generating device and a radio frequency ablation instrument, including: a radio frequency signal generating unit for generating a PWM signal; a DC voltage output unit for obtaining an analog voltage generated based on the impedance change of the target ablation tissue, and outputting a first DC voltage that matches the impedance change based on the analog voltage; a transformer, the primary side of which is connected to the radio frequency signal generating unit and the DC voltage output unit, and the transformer is used to convert the first DC voltage into the peak voltage required for the target radio frequency power; a radio frequency signal output unit, which is connected to the secondary side of the transformer, and the radio frequency signal output unit is used to superimpose the peak voltage on the PWM signal, generate a radio frequency signal of the target radio frequency power, and output the radio frequency signal. The present invention solves the problem of poor radio frequency ablation treatment effect caused by fixed radio frequency signal output power, and timely adjusts the output power of the radio frequency signal according to the impedance change to prevent risks such as carbonization and burns of biological tissue.

1. The name of the design product: radio frequency ablation instrument. 2. The use of the design product: radio frequency ablation treatment on human tissue. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A device is described herein comprising a plurality of radio frequency ablation (RFA) elements, wherein the plurality of RFA elements are longitudinally disposed at a distal end of the device and a proximal end of the device coupled to a radiofrequency (RF) generator, wherein an intermediate section of the device independently couples each element of the plurality of RFA elements to the RF generator, wherein the plurality of RFA elements are configured to generate respective elliptical ablation zones when powered by the RF generator.

The invention is suitable for the technical field of medical instruments, and provides a radiofrequency ablation device which comprises a shell and a host. The plurality of round holes are formed in one side of the shell; the partition plate is fixedly arranged on the inner wall of the shell; the plurality of radiofrequency ablation mechanisms are mounted on the shell and are used for performing radiofrequency ablation on a focus of a patient; the plurality of position adjusting mechanisms are mounted on one side of the partition plate and are used for adjusting the relative positions of the plurality of radiofrequency ablation mechanisms. According to the radiofrequency ablation device, radiofrequency ablation can be conducted on the focus of a patient, the relative positions of the multiple radiofrequency needles can be adjusted, and the radiofrequency ablation device can be suitable for the focus in an irregular shape.

The radiofrequency ablation device comprises a sheath tube unit, a guide tube unit and an electrode unit, the far end of the guide tube unit is exposed through an opening element of the sheath tube unit, the far end of the electrode unit reaches a radiofrequency ablation position through the guide tube unit, and the electrode 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.