4756results about "Surgical instruments for heating" patented technology

In one embodiment, a medical system includes a catheter configured to be inserted into a chamber of a heart of a living subject, and including multiple electrodes configured to capture electrical activity from electrical activation signals propagating in tissue of the chamber, a display, and processing circuitry configured to automatically select bipolar signals to be captured into an electro-anatomical map from respective electrode pairs of the multiple electrodes responsively to an alignment of the respective electrode pairs with a direction of propagation of the electrical activation signals, and render the electro-anatomical map to the display.

The invention discloses a radio frequency ablation electrode control method which comprises the following steps: S1, initializing an ablation temperature target value, a safety limit value and a power adjusting range, and loading a pre-stored anal fistula ablation three-stage feature library and impedance-temperature correlation degree thresholds of all stages; s2, collecting the electrode temperature, the electrode-tissue impedance and the ablation duration in real time, and judging the current ablation stage according to the matching relationship between the ablation duration and the three-stage feature library; s3, formulating a state judgment rule according to the current stage; s4, a fuzzy PID algorithm is adopted to calculate a power basic adjusting amount, a power dynamic compensation amount is calculated, and final output power is determined; and S5, repeating the steps S2-S4 to realize closed-loop control, triggering first-level early warning when the parameters are close to the boundary, triggering second-level alarm when the parameters exceed the safety limit value, and recording abnormal data. The stage adaptability is high, the problem of temperature adjustment lag can be solved, the adjustment precision is accurate enough, and the ablation effect can be improved.

A system and apparatus for automatic smoke evacuation using an RF sensor. The system and apparatus utilizes an RF sensor for automatic activation of an evacuator that evacuates smoke and / or debris during the use of any electrosurgical instrument or surgical instrument that is capable of generating smoke and / or debris and capable of producing a radiofrequency during its operation. Exemplary embodiments of the system and apparatus for automatic smoke evacuation include both wired and wireless embodiments.

An interactive and dynamic surgical simulation system may be used in the context of a computer-implemented interactive surgical system. The surgical simulation system may provide coordinated surgical imagining. A processor may be configured to execute a simulation of a surgical procedure. The surgical procedure may be simulated in a simulated surgical environment. The processor may generate a first visual representation and a second visual representation. The first visual representation may be of a first portion of the simulated surgical environment. The second visual representation may also be of the first portion of the simulated surgical environment.

An intracardiac echocardiography (“ICE”) catheter handle, including a housing having a longitudinal axis, the housing having a proximal end and a distal end. A first actuator can be positioned on a first portion of the housing in a plane aligned with the longitudinal axis, the first actuator coupled to a first controller, the first actuator and first controller configured to control a catheter coupled to the first controller in a first direction and a second direction in the first plane. A second actuator can be positioned on a second portion of the housing in a second plane aligned with the longitudinal axis, the second actuator coupled to a second controller, the second actuator and second controller configured to control a catheter coupled to the second controller in a third direction and a fourth direction in the second plane, wherein first plane is aligned orthogonally to the second plane.

Disclosed herein are apparatuses, systems, kits, and methods for treating skin, such as skin tightening or for treating diseases, disorders, and conditions that would benefit from tissue area or volume reduction, skin restoration, skin tightening, skin lifting, and / or skin repositioning and / or for generally improving skin function or appearance (e.g., the removal of unwanted skin features or irregularities such as sebaceous glands, sweat glands, hair follicles, necrosis, and fibrosis). Such apparatuses, systems, kits, and methods comprise an apparatus having a handheld main body and a detachably attachable tip comprising one or more needles.

The invention provides a high-frequency instrument power adjusting system based on image recognition and impedance recognition, and the system comprises an image recognition module which is used for responding to a collection instruction, collecting an image of a tissue, and carrying out the feature recognition of the image, and obtaining an image feature; the impedance identification module is used for responding to the acquisition instruction, acquiring an electric signal of the tissue and processing the electric signal to obtain impedance information; the main control module is used for responding to the control signal, generating an acquisition instruction, sending the acquisition instruction to the image identification module and the impedance identification module, and carrying out weighted fusion calculation on image features and impedance information to obtain a power issuing parameter; and the power control module is used for adjusting the power of the high-frequency instrument based on the power issuing parameters.

An ablation system is disclosed. The ablation system comprises a tubular ablation catheter and an ablation instrument. The catheter comprises a far end used for being attached to target tissue to be ablated, a near end used for being connected with the ablation instrument and a catheter body located between the far end and the near end. The ablation instrument transmits radio frequency / pulse energy to the ablation catheter, so that the catheter ablates the target tissue; the electrode group at the far end is used for collecting electrocardiosignals of target tissues and transmitting the electrocardiosignals to the three-dimensional heart electrophysiological mapping system to realize heart modeling and mapping, and each electrode has the capabilities of collecting the electrocardiosignals and ablating the target tissues; and the electrode group receives a control signal from the ablation instrument, and determines that the electrodes in the electrode group work in a single-pole / double-pole mode according to the control signal and realizes dotted / linear ablation. According to the system, mapping and ablation functions are integrated in a single catheter, two purposes are achieved through one catheter, flexible switching of various ablation modes / shapes / energy is supported, and high universality is achieved.

The invention provides an intelligent vein closing system and a control method thereof, and belongs to the technical field of medical instruments.The intelligent vein closing system comprises a radio frequency generator host and a closing catheter, and the radio frequency generator host is used for generating and controlling output of radio frequency energy; the closed catheter comprises a handle, a catheter body and a heating working end which are connected in sequence, and the handle is detachably connected with the radio frequency generator host; wherein an infusion pump is integrated on the radio frequency generator host, and the infusion pump is used for infusing swelling liquid to a surgical site and is controlled by a control unit in the radio frequency generator host; a pressure sensor array is arranged outside the heating working end of the closed catheter and used for detecting the attaching pressure between the heating working end and the blood vessel wall in real time. The device is high in integration, and vein closing effectiveness, stability and treatment consistency are improved.

The invention relates to a nerve monitoring monopole electrocoagulation hook for thyroid surgery and a surgical instrument, and relates to the technical field of medical instruments.The electrocoagulation hook comprises a nerve detecting piece installed at the front end of a handle, an insulating pipe body is arranged in the nerve detecting piece, a smoke suction channel and a sliding hole are formed in the insulating pipe body, and a rod body is slidably inserted into the sliding hole and connected with an external power source; the far end of the rod body is provided with a hook body bent relative to the rod body, and the surface, deviating from the smoke suction channel, of the hook body forms an electrocoagulation face. The hook body is provided with a first-stage heat conduction assembly, avoids the electrocoagulation surface and is in heat conduction connection with the electrocoagulation surface; one end of the second-stage heat conduction assembly is in heat conduction connection with the first-stage heat conduction assembly, and the other end of the second-stage heat conduction assembly extends into the smoke suction channel. Through the combined design of two-stage heat conduction and heat dissipation, heat generated by the electrocoagulation surface during coagulation and cutting can be rapidly conducted through the heat conduction assembly and is dissipated and taken away through cooperation of the smoke suction channel, so that the diffusion risk of the heat in adjacent nerves and tissues is reduced to a certain extent, and the operation safety and stability in an operation are improved.

A tissue treatment system and method of using the tissue treatment system determines a size of a body lumen, or a neuromodulation parameter corresponding to the size of the body lumen. The tissue treatment system fills a balloon with a fluid when the balloon is within a body lumen. A fluid parameter of the fluid is detected over a period of time. A parameter curve of the fluid parameter is determined. The parameter curve includes the fluid parameter versus an independent variable over the period of time. The parameter curve includes inflections that correspond to changes in the fluid parameter. Based on the inflections, the system can determine the body lumen size or the neuromodulation parameter. Other embodiments are also described and claimed.

The utility model belongs to the technical field of medical instrument ablation, and particularly relates to an ablation assembly applied to automatic operation and an automatic-operation medical device.The ablation assembly applied to automatic operation comprises a consumable handle provided with a first sliding groove; the first adapter block can linearly move in the first sliding groove; one end of the first catheter is connected with the consumable handle; the first connecting piece can be detachably connected with an external instrument and is arranged at the other end of the first catheter; the first sliding block is movably arranged in the first sliding cavity of the first connecting piece, and the first sliding block is connected with the first adapter block; the outer sheath tube is arranged on the first adapter block, and the first sliding block is connected with the first adapter block, so that the first adapter block can drive the outer sheath tube to do reciprocating linear movement relative to the consumable handle; the ablation electrode is arranged on the outer sheath tube and can be configured with ablation energy. By the adoption of the structure, automatic conveying of the outer sheath tube and the ablation electrode can be achieved, operation is convenient and fast, and control is easy.

Systems and methods are provided for modeling and for providing a graphical representation of tissue heating and electric field distributions for medical treatment devices that apply electrical treatment energy through one or a plurality of electrodes. In embodiments, methods comprise: providing one or more parameters of a treatment protocol for delivering one or more electrical pulses to tissue through a plurality of electrodes; modeling electric and heat distribution in the tissue based on the parameters; and displaying a graphical representation of the modeled electric and heat distribution. In another embodiment, a treatment planning module is adapted to generate an estimated target ablation zone based on a combination of one or more parameters for an irreversible electroporation protocol and one or more tissue-specific conductivity parameters.

A system for performing minimally invasive procedures in a body lumen of a patient including a flexible catheter having a first lumen configured and dimensioned to receive an endoscope therethrough and a second lumen configured and dimensioned to receive a first flexible tube therethrough. The first flexible tube is movable through the second lumen and has a distal portion including a first curve extending in a first direction with respect to the longitudinal axis and a second curve extending in a second different direction with respect to the longitudinal axis. A retractor system is positioned at a distal portion of the catheter and is movable from a non-expanded insertion position to an expanded position forming an expanded cage to form a larger working space. The distal portion of the first flexible tube is movable within the expanded cage.

Embodiments of methods and systems for determining electrocardiogram (ECG) depth of electrical activity. Electrical activity from a plurality of electrodes of a catheter is received; and within the electrical activity, an electrical signal originating from a depth within cardiac tissue is identified. In some embodiments, spatial electrode signal analysis of the electrical activity may be performed for each electrode of the plurality of electrodes. In some embodiments, a linear and / or non-linear combination of signal components within the electrical activity may be calculated. In some embodiments, a neural network may be provided with the electrical signals and may determine an estimated distance to the nearest activation for at least one of the plurality of electrodes. A visualization of the identified electrical signals at a specified depth within the cardiac tissue may be provided for display.

The utility model discloses bipolar electrocoagulation forceps capable of adjusting directions. The bipolar electrocoagulation forceps comprise a handle part, a rotating unit and an operating part, the operating part is fixed at one end of the rotating unit, and the other end of the rotating unit is connected with the handle part; the operating part comprises a forceps rod with an insulating rod sleeve and electrocoagulation forceps mounted at the top end of the forceps rod, and a snake bone is arranged at the front end of the forceps rod; the rotating unit comprises an adjusting knob, a fixing buckle installed at the front end of the adjusting knob and a fixing cap matched with the fixing buckle. The handle part comprises a handle shell, an operation handle installed in the shell and a power transmission line connected with the conductive cable. According to the bipolar electrocoagulation forceps capable of adjusting the direction, the direction of the electrocoagulation forceps and the bending degree of the snake bone are adjusted through the adjusting knob structure of the rotating unit, meanwhile, the operating handle is adjusted to drive the conductive cable to enable the electrocoagulation forceps to be opened and closed, and an operator can rapidly change the working angle of the electrocoagulation forceps according to needs.

The invention relates to the technical field of high-frequency electrotomes, in particular to a bending compensation device for a high-frequency electrotome, which comprises a handle, a button, a PCBA (printed circuit board assembly) control panel, a power line, a conductive part, a T-shaped part, an inner snake-bone tube, an outer snake-bone tube, a sleeve, a first connecting piece and an electrotome. According to the bending compensation device for the high-frequency electrotome, a rotating sleeve of the rotating assembly can drive an inner rotating block, a second connecting piece and a snake-bone pipe to rotate integrally, stability of a sliding ring is not affected when the inner snake-bone pipe rotates due to the arrangement of a bearing, and further rotating adjustment of the electrotome on the basis of bending is achieved; the cutting requirements of multiple directions and complex angles are met, and the flexibility and accuracy of surgical operation are improved.

The invention relates to the technical field of perforation early warning, in particular to an ESD perforation early warning system and method based on deep reinforcement learning. A data acquisition unit of the system is used for acquiring multi-modal data of a current cutting area, a data processing unit is used for performing data processing on the multi-modal data to obtain early warning processing data, and a data fusion unit is used for performing weight distribution on each piece of data in the early warning processing data and then outputting the early warning processing data. Performing fusion processing on each piece of data in the early warning processing data by using the distributed weight to obtain early warning fusion data; the model processing unit performs perforation risk prediction on the early warning fusion data by using a preset deep reinforcement learning model to obtain a risk prediction value; and the perforation early warning unit judges the risk prediction value by using a preset risk model and then sends out perforation early warning information. According to the invention, real-time and accurate auxiliary decision-making in the operation is provided for medical staff, the perforation rate in the ESD operation is obviously reduced, and the operation safety and efficiency are improved.

Embodiments of the invention provide devices and methods for at least one disease by delivering an effective amount of energy and / or a formulation to tissue on or near a body lumen. The formulation may include at least one of a gas, a vapor, a liquid, a solution, an emulsion, a suspension, or a combination thereof of one or more ingredients. The delivered amount of formulation and / or energy may be effective to damage or damage tissue, nerves, and / or nerve endings to relieve disease symptoms.

The utility model discloses a positioning precision detection device realized by combining with a robot, comprising a mechanical arm used for clamping a mapping conduit connected with a three-dimensional mapping system; under the condition that the mapping catheter moves to a theoretical coordinate point, the three-dimensional mapping system can generate a mapping coordinate point corresponding to the theoretical coordinate point; the intracardiac environment simulation device is provided with a space for movement of the mapping catheter; and the upper computer is used for generating a plurality of theoretical coordinate points, is connected with the mechanical arm and is used for controlling the mapping catheters to move to the theoretical coordinate points one by one in the intracardiac environment simulation device along with the mechanical arm. In conclusion, the mechanical arm simulates the action of a human arm, so that flexible movement is performed in a three-dimensional space, and high-precision and repeated precision evaluation of the three-dimensional mapping system is further realized.

A medical system is disclosed that includes a medical device having an optical fiber, and an interchangeable connection component configured to provide a fiber optic connection between the medical device and capital equipment. The connection component is configured to facilitate cleaning and / or polishing of fiber optic interfaces include therewith. The connection component is also configured for replacement by a medical technician while the capital equipment is operational. The capital equipment may include one or more of an optical interrogator, a patch cable, a medical probe, an ultrasound machine, a display, a magnet sensor, or an electro-cardiogram (ECG) machine. The medical device may include an elongate member configured for insertion within the patient body, where the optical fiber core extends along a length of the elongate member.

The invention relates to the technical field of temperature control, in particular to a multi-dimensional compensation ablation system temperature control system, method and device and a medium. The system calculates a medium texture index representing the structural change of the load medium by synchronously acquiring electrical parameters and ultrasonic image data; constructing an anti-interference control model comprising an extended state observer, and defining energy transmission loss caused by contact thermal resistance as an extended state variable; calculating an adaptive correction factor based on the texture index, dynamically correcting the state updating process of the observer to obtain an energy loss correction estimated value, and constructing a compensation control model to adjust the output power according to the energy loss correction estimated value; according to the invention, the technical problem of incomplete heating caused by false high temperature of the sensor and system misjudgment due to state deterioration of the contact interface is effectively solved; accurate reconstruction and closed-loop compensation of effective heat flow in a non-ideal contact environment are realized, sufficient energy penetration can still be maintained even if contact thermal resistance is sharply increased, and the integrity of an ablation area is guaranteed.

The invention provides signal acquisition equipment for pulsed electric field ablation. The signal acquisition equipment comprises an input interface module, a signal conditioning circuit, a differential-to-single-ended circuit and a signal acquisition module, the input interface module comprises a first input interface and a second input interface; the signal conditioning circuit is arranged between the input interface module and the differential-to-single-ended circuit and comprises an adjustable resistance sub-circuit with an adjustable resistance value, a first end of the adjustable resistance sub-circuit is connected with the first input interface, a second end of the adjustable resistance sub-circuit is connected with the second input interface, and a sliding end of an adjustable resistor in the adjustable resistance sub-circuit is grounded; the first input end of the differential-to-single-end circuit is connected with the first end of the adjustable resistor sub-circuit, and the second input end of the differential-to-single-end circuit is connected with the second end of the adjustable resistor sub-circuit; and the signal acquisition module is connected with the output end of the differential-to-single-terminal circuit. According to the signal acquisition equipment provided by the embodiment of the invention, the accuracy of pulse signal acquisition can be improved.

A method of displaying an operational parameter of a surgical system is disclosed. The method includes receiving, by a cloud computing system of the surgical system, first usage data, from a first subset of surgical hubs of the surgical system; receiving, by the cloud computing system, second usage data, from a second subset of surgical hubs of the surgical system; analyzing, by the cloud computing system, the first and the second usage data to correlate the first and the second usage data with surgical outcome data; determining, by the cloud computing system, based on the correlation, a recommended medical resource usage configuration; and displaying, on respective displays on the first and the second subset of surgical hubs, indications of the recommended medical resource usage configuration.

Disclosed is a needle tip structure for a handpiece having an NFC function. The needle tip includes a body mounted at the front end of a handpiece, a first substrate fixed within the body and connected to a plurality of RF supply terminals of the handpiece, a second substrate on which a plurality of micro needles is mounted and movably installed within the body, a holder coupled to a driving shaft of the handpiece through the first substrate and configured to support the second substrate, and a pair of connection pins connected to the second substrate and the first substrate. An NFC chip capable of short-distance wireless communication with an external NFC terminal is installed in the first substrate.

A method of manufacturing a surgical instrument that includes a tissue contacting surface operable to apply ultrasonic energy or RF energy to tissue. The method includes applying a hydrophobic coating that includes silicone to a base surface of the tissue contacting surface to form an applied coating layer having a coating application thickness. The method also includes removing portions of the applied coating layer with a resiliently biased mechanical coating removal tool to form a plurality of removed portions of coating. A removal depth of each removed portion of the plurality of removed portions can each be from 50% to 100% of the coating application thickness such that from 10% to 50% of the applied coating layer is removed from the base surface.

The utility model provides an expansion device with a nerve monitoring function. The expansion device comprises a base and a function switching circuit, the base is provided with a high-frequency connecting end used for being connected with high-frequency generator equipment, a nerve monitoring connecting end used for being connected with a nerve monitor and an equipment connecting end used for being connected with surgical equipment, and the high-frequency connecting end is matched with the interface type of the equipment connecting end; the function switching circuit comprises a first input end, a second input end and an output end; under the condition that the first input end is electrically connected with the output end, the function switching circuit outputs a high-frequency excitation signal output by the high-frequency generator equipment to the surgical equipment through the output end, so that the surgical equipment realizes an electrocoagulation and electroresection function; under the condition that the second input end is electrically connected with the output end, the function switching circuit transmits the nerve stimulation signal output by the nerve monitor to the surgical equipment so that the surgical equipment can achieve the nerve monitoring function, and therefore the nerve monitoring function can be expanded for the surgical equipment connected with the expansion device in an inserted mode.

The invention belongs to the technical field of medical equipment, and provides a bipolar electrotome control method and device, electrosurgical equipment and a storage medium, and the method comprises the steps: obtaining an output voltage, an output current and a tissue temperature; determining a feature vector based on the output voltage, the output current and the tissue temperature; inputting a plurality of feature vector values in the feature vectors into a trained full-connection neural network to obtain a closure degree predicted value, a carbonization risk predicted value and a quality score predicted value; determining a dynamic output power based on the closure degree predicted value, the carbonization risk predicted value, a feature vector and a basic output power; based on the dynamic output power and a preset condition, determining a safe output power through a safe output power calculation formula; controlling the closing action of the bipolar electrotome based on the closing degree predicted value, the safe output power and the closing quality score value; the efficiency of controlling the bipolar electrotome to perform the closing action is improved, the problem of excessive carbonization of tissues is reduced, and the operation safety is greatly improved.

The invention provides a radiofrequency ablation system based on multi-source data, and relates to the technical field of medical instruments, and the system comprises an ablation area judgment device which is used for judging whether an operation target meets the ablation requirement or not according to a real-time ultrasonic image of the operation target; the data processing device is used for determining an ablation strategy of an ablation area of the operation target according to the real-time electrocardiogram data and the real-time vital sign data of the operation target in combination with a preset radiofrequency ablation working mode when the operation target meets the ablation requirement; the radio frequency energy generating device is used for generating corresponding radio frequency energy according to the ablation strategy; and the ablation device is used for performing ablation operation according to the radio frequency energy action. By integrating multi-source data such as real-time ultrasonic images, electrocardiogram monitoring and vital sign monitoring, accurate judgment of ablation requirements, dynamic adjustment of ablation strategies and accurate output of ablation energy are achieved, and the safety, accuracy and curative effect of cardiac radiofrequency ablation treatment are improved.

Systems, devices, and methods described herein relate to catheter devices for therapy delivery. In some embodiments, a catheter device includes a shaft and a needle, where the shaft defines a lumen configured to slidably receive the needle such that the needle can be advanced distally beyond the shaft to penetrate into a tissue site. The shaft further including a first electrode, and the needle including a second electrode, where the first and second electrodes are configured to deliver electroporation to the tissue site.