172 results about "Electrode placement" patented technology

The invention relates to the technical field of intelligent medical assistance, in particular to a skin disease treatment electrode positioning system based on potential distribution. The system comprises a potential gradient severe region identification module, a lesion minimum surrounding region identification module, a similar potential region grouping module, an optimal electrode position prediction module, an electric field distribution calculation module, a sweat gland dense region identification module, an optimal electrode placement point screening module, an enhanced feature generation module and a final electrode position determination module. By fusing multi-source information such as skin surface potential distribution, lesion geometric characteristics, tissue conductivity, historical treatment data and the like, systematic optimization is performed on electrode positioning in skin disease treatment, the effectiveness of electrode stimulation is maximized on the premise of ensuring the treatment safety, and the treatment efficiency is improved. An accurate electrode placement scheme is provided for treatment of different types of skin diseases, and the method is suitable for accurate determination of the electrode placement position in electrical stimulation treatment.

An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.

The utility model belongs to the technical field of electrode shaping tools, and particularly provides an electrode shaping device which comprises a supporting assembly, an upper mold assembly and a lower mold assembly, the upper mold assembly is installed on the supporting assembly and can move in the vertical direction relative to the lower mold assembly, and the lower mold assembly is located below the upper mold assembly. A catheter positioning groove used for containing a catheter is formed in the top of the lower die assembly, an electrode positioning boss is arranged at the position, corresponding to the upper die assembly, in the catheter positioning groove, and the electrode positioning boss is used for being matched with the upper die assembly to form a cavity for limiting the shape and size of an electrode. The guide pipe is placed in the guide pipe positioning groove, so that the guide pipe can be positioned, and the guide pipe is effectively prevented from shaking and inclining; the electrode can be positioned by placing the electrode on the electrode positioning boss, and it is guaranteed that the upper die assembly is accurately pressed on the electrode; the shape and the size of the electrode are limited through the cavity formed by matching the electrode positioning boss with the upper die assembly, so that the shape and the size of the electrode can be accurately controlled.

An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.

Implantable medical devices for use in or on the eye. An implantable device may have at least one electrode thereon for issuing therapy, such as via electrical current or voltage, while implanted in or on the eye, for the treatment of one or more of macular degeneration, glaucoma, presbyopia, or other condition or disease of the eye. The implantable device may comprise a transducer for receiving power from an external device that may be worn on the patient using any of optical, inductive, mechanical or radiated energy. An example includes an implantable device for placement on the retina which has a gap or opening to place electrodes near the maculae without covering the fovea. Other examples may target other portions of the eye anatomy.

An electrode carrier system includes one or more electrode assemblies having an electrode body. One or more tubular members extend from the electrode body and define a lumen terminating in a distal opening. The electrode assemblies carry a reservoir containing a conductive fluid or gel. The reservoir is in fluid communication with the lumens in the tubular members, and the electrode assemblies are typically supported on a backing which may optionally be configured as a headband. Systems are for tracking patient movement may be used in combination with the electrode carrier system.

Systems, apparatuses, and methods described herein facilitate the placement of spinal cord stimulator (SCS) electrode in relationship to neural tissue of the spinal cord based on electromyography (EMG) data. The systems, apparatuses, and methods are designed to assist physicians and surgeons target specific neurophysiological locations through stimulation and subsequent visualization of EMG activity in response to stimulation to more precisely identify the location of the SCS electrodes that will maximize the intended therapeutics effects of SCS.

The utility model discloses an electrode coping waste collecting device, and relates to the technical field of waste collection, the electrode coping waste collecting device comprises a working table, the bottom of the working table is fixedly connected with a fixing column, the working table is provided with a collecting mechanism, and the working table is provided with a separating mechanism. A worker places an electrode needing to be ground on the workbench, the electrode is ground through the grinding machine, chippings generated in the electrode grinding process can fall into the channel, due to the existence of the filter plate, the chippings can be blocked, cooling liquid passes through the channel, then the motor is started through the controller in the grinding process, and the chippings can be ground through the motor. According to the mechanism, a motor drives a threaded rod to rotate, when the threaded rod rotates, a push plate can be driven to move on the surface of a filter plate, the mechanism can push chippings staying on the surface of the filter plate into a collecting shell through the push plate to complete collection, and meanwhile, a brush can prevent some tiny chippings from being adsorbed on the filter plate.

An electrode placement device allows placement and fixation of electrocardiogram (EKG) electrodes. Proper adherence of electrodes to predetermined positions on the epidermal surface is facilitated by a plurality of elongated placement members extending from a base that align with the electrodes. Each electrode is biased against the patient sensing region, typically the chest of an EKG patient, by prongs flanking the electrode at the distal end of each of the placement members. Flanking prongs engage an outer perimeter of a flexible, skin placed electrode, while a gap between the prongs allows for a signal wire to the electrically conductive center. Problems with weak adhesion from sweat, dirt or poor adhesive are avoided by a modest biasing force imposed equally on all electrodes from manual pressure applied to the base.

The invention discloses a flexible zinc ion battery positive electrode constructed through 3D printing and a preparation method and application thereof. Polyvinylidene fluoride and N-methyl pyrrolidone are mixed, heated and stirred to form gel, the carbon nanotube coated MOF-based composite material and carbon black are added, ball milling is performed, and printable positive ink is prepared; the method comprises the following steps: filling printable positive electrode ink into an injector, connecting the injector to an air pressure control device of a printer, uniformly extruding mild ink, after printing is completed, placing an obtained electrode in a ventilation cabinet, drying and removing a soldering flux. According to the flexible zinc ion battery positive electrode constructed through 3D printing, a three-dimensional network structure of a carbon nanotube coated MOF material and carbon black is prepared through a 3D printing method, rapid transmission of zinc ions is guaranteed, and the flexible zinc ion battery positive electrode has high specific capacity and long cycle stability, meanwhile has good flexibility, is simple in preparation process and short in time consumption and has good industrialization prospects.

The present invention provides a method for determining the safety boundary of an arc induced by jetting due to thermal runaway of a battery, which belongs to the field of battery safety technology. The method for determining the safety boundary of an arc induced by jetting due to thermal runaway of a battery comprises building an experimental platform for an arc induced by jetting due to thermal runaway of a battery; setting an operating range, conducting an arc induced by jetting due to thermal runaway of a battery, and obtaining critical conditions; calculating the arc ignition critical electric field strength based on an electric field strength calculation formula, converting the electric field strength into a voltage-electrode spacing relationship to obtain a safety boundary; adjusting the electrode placement height, and repeating the above steps to obtain the safety boundary of an arc induced by jetting due to thermal runaway of a battery at different electrode heights. The present invention provides a method for determining the safety boundary of an arc induced by jetting due to thermal runaway of a battery, which can solve the problem that the evaluation of electrical safety and the confirmation of the danger of arc induced during thermal runaway not only involve high-risk operations under high-temperature and high-pressure conditions, but also consume a lot of manpower and material resources.

Systems, apparatuses, and methods described herein facilitate the placement of spinal cord stimulator (SCS) electrode in relationship to neural tissue of the spinal cord based on electromyography (EMG) data. The systems, apparatuses, and methods are designed to assist physicians and surgeons target specific neurophysiological locations through stimulation and subsequent visualization of EMG activity in response to stimulation to more precisely identify the location of the SCS electrodes that will maximize the intended therapeutics effects of SCS.

The utility model discloses a primary battery preparation device which comprises two electrodes, two electrolyte containers, two hollow pipes and a salt bridge, electrolyte solution is contained in the electrolyte containers, hooks are arranged on the side walls of the hollow pipes, the side walls of the electrolyte containers are detachably connected with the hooks, and the salt bridge is arranged on the hollow pipes. An electrode mounting tube is mounted in the hollow tube in a sliding manner; and the salt bridge comprises a three-way glass tube, a semi-permeable membrane and a silicone tube. The device has the beneficial effects that the treated electrode is placed in the closed space formed by the electrode mounting tube and the hollow tube, the electrode is protected by inert gas, the electrode is prevented from being oxidized by air after an experiment is finished, the electrode can be subjected to a next experiment without being subjected to surface treatment, and the experiment efficiency is improved. Meanwhile, the semi-permeable membrane is fixed to the lower pipe opening of the three-way glass pipe through the silica gel pipe and serves as a salt bridge medium, a semi-permeable membrane salt bridge is convenient to add filling liquid and does not deteriorate, and the semi-permeable membrane is very convenient to replace.

A method of operating a cardiac rhythm management (CRM) system includes recurrently calculating, by a medical device of the CRM system, impedances between a housing electrode included in a housing of the medical device and each of multiple pacing electrodes, wherein the multiple pacing electrodes include a left bundle branch pacing electrode configured for placement in a left bundle branch of a subject; comparing the calculated impedances to one or more specified impedance values; and producing an alert regarding placement of a pacing electrode in response to a calculated impedance corresponding to the pacing electrode differing from the one or more specified impedance values by a predetermined threshold impedance value.

Systems and methods for electroencephalography headband apparatuses including a strap member, an amplifier device, and electrode assemblies each including a capsule receiving structure having a detent feature configured to resist rotation of a gel capsule positioned there within, a stabilization structure having a central attachment section and a plurality of leg members positioned radially outward from a central axis of the electrode assembly, and a gel delivery structure configured to be positioned at least partially within the capsule receiving structure and to rotatably attach to the stabilization structure such that the gel delivery structure may be able to rotate independently of the stabilization structure. The gel delivery structure may include a plurality of teeth members configured to engage with and lacerate a lower surface of the gel capsule and a plurality of gel delivery channels configured to deliver gel from the gel capsule to patient scalp.

The invention relates to a method for manufacturing a bipolar or multipolar conductor for a medical device, comprising the following process steps: a) Providing a cable including an external insulation, an inner lumen, at least one electrically conductive channel; b) Provide at least one conductive paste; c) Creating at least one contact opening near the distal end of the cable, such that at least one electrically conductive channel can be selectively electrically contacted via the contact opening; d) Filling the contact opening with the conductive paste, wherein the volume of conductive paste filled is 105% to 200% of the capacity volume of the contact opening in order to create a protrusion of conductive paste protruding from the contact opening; e) Providing at least one electrode, wherein the electrode has a contact surface with a contact cross-sectional area; f) Positioning the electrode at the position of the contact opening, with the contact surface oriented towards the contact opening; g) Moving the positioned electrode towards the contact opening so that the excess conductive paste is introduced between the outer insulation and part of the contact surface during the movement; h) Curing of the conductive paste to fix the electrode electrically to the electrically conductive channel.

The utility model discloses preparation equipment of a proton exchange membrane fuel cell, which comprises a base, a membrane electrode placing frame is arranged on the base, and a tensioning mechanism is arranged in the membrane electrode placing frame; the tensioning mechanism comprises a fixed frame and a movable frame, the fixed frame is arranged on one side in the membrane electrode placing frame, the movable frame is arranged on the other side in the membrane electrode placing frame, a nut is arranged on one side of the movable frame, one end of the nut is connected with a ball screw, the ball screw is rotationally arranged on one side in the membrane electrode placing frame, and the other end of the nut is connected with a nut. Fixing assemblies for clamping a membrane electrode are arranged in the fixed frame and the movable frame; and an auxiliary positioning mechanism used for lifting and adsorbing the membrane electrode is arranged at the bottom in the membrane electrode placement frame. According to the membrane electrode spraying device, the membrane electrode can be tensioned, the flatness of the membrane electrode is ensured, then the surface of the membrane electrode can be uniformly sprayed, the membrane electrode is convenient to take and place, and the stability of the membrane electrode during spraying is ensured.

The invention belongs to the technical field of molecular electronics, and particularly relates to a method for constructing a fixed-area molecular tunnel junction and an electrical property testing method.The method comprises the steps that a circular array mask is prepared, a gold target is deposited on the surface of a glass sheet, and a circular gold array is obtained; the gold-glass transparent array electrode is soaked in a molecular solution, when molecule self-assembly is completed, the surface is washed and dried, and the gold-glass transparent array electrode with the surface containing a self-assembly monomolecular film is obtained; preparing a gallium-indium alloy electrode; the gold-glass transparent array electrode is placed on an objective table, the tip of the gallium-indium alloy electrode is in contact with the circular gold array, the other end of the gallium-indium alloy electrode is led out to be in contact with the metal probe electrode, a current test loop is formed, and a fixed-area molecular tunnel junction is formed; compared with a traditional metal electrode, the gold-glass transparent array electrode has the advantage that adverse factors such as personal errors of molecular junction electrical property test results are effectively reduced.

The invention discloses a diaphragm stacking assembly and battery core lamination equipment, and relates to the technical field of lithium battery production and manufacturing, the diaphragm stacking assembly is used for stacking diaphragms in the battery core lamination equipment, the diaphragm stacking assembly comprises a lamination table and two translation mechanisms, and the lamination table is used for being arranged on a machine tool of the battery core lamination equipment; the two translation mechanisms are arranged on the two opposite sides of the lamination table in a spaced mode, each translation mechanism can horizontally move relative to the lamination table, and the diaphragm is arranged between the two translation mechanisms in a penetrating mode; the surfaces of the translation mechanisms are used for picking up the pole pieces, and the two translation mechanisms alternately and horizontally move and are used for pushing the diaphragms to be bent and folding the diaphragms and the pole pieces on the lamination table. The diaphragm stacking assembly provided by the invention aims to realize diaphragm stacking and pole piece placement through one set of module, so that the cost is reduced.

The invention relates to a P-doped MoS2 / Co4S3 and CoP heterojunction hollow nanotube array electrode as well as a preparation method and application thereof, and belongs to the field of new energy materials such as water electrolysis and metal-air batteries. The preparation method comprises the following steps: firstly, placing a pretreated substrate material in a mixed solution of cobalt salt, urea and ammonium fluoride, and preparing a Co (OH) 2 nanowire array electrode through a high-temperature hydrothermal method; secondly, the electrode is placed in an ammonium tetrathiomolybdate solution, and a precursor is obtained through secondary high-temperature hydrothermal treatment; and finally, pyrolyzing the electrode and sodium hypophosphite in a high-temperature tubular furnace together to obtain the P-doped MoS2 / Co4S3 and CoP heterojunction hollow nanotube array electrode. The prepared electrode material has the advantages of low cost, high activity, good stability and the like, and has wide application prospects in the fields of water electrolysis, metal-air batteries, domestic sewage treatment and the like.

The present invention relates to a method for inducing a controlled fluid transport in a central nervous system, CNS, and / or in a cerebrospinal fluid, CSF system, of a patient by electro-osmosis, EO, via two or more electrodes placed at selected locations on the patients head, comprising receiving EO information, the EO information being at least indicative of fluid transport response resulting from application of particular electric potentials and / or currents at particular electrode locations on the patient's head based on a patient-specific three-dimensional head model, receiving a fluid source location within the patient's head, selecting a set of electrode locations using the EO information and the fluid source location, placing the two or more electrodes in electrical communication with said CNS / CSF-system, each electrode being placed at one location of the selected set of electrode locations, and controlling an application of selected electric potentials and / or electric currents to said electrodes, wherein the selected electric potentials and / or electric currents is selected as electric potentials and / or electric currents associated to the selected set of electrode locations by the EO information, so as to induce a controlled fluid transport in said CNS / CSF-system.

This invention discloses a coherent electrical stimulation method for idiopathic scoliosis combined with exercise therapy, belonging to the field of electrical stimulation methods for idiopathic scoliosis. It aims to address the problem of how to dynamically adjust stimulation parameters based on individual differences to improve treatment efficacy. The method includes acquiring raw image sequences of the patient's spine through MRI scans, preprocessing the raw image sequences to construct a three-dimensional geometric model of the spine, configuring simulated electrical property parameters for the tissue structures, and then adding coherent electrical surface electrodes to the model. The electrode placement area on the three-dimensional geometric model of the spine is initially defined, and a coherent electrical stimulation signal is generated using a function generator. A comprehensive evaluation index value is calculated through finite element analysis to dynamically adjust the coherent electrical stimulation signal. Based on the coherent electrical stimulation signal parameters and its comprehensive evaluation index value, a coherent electrical stimulation scheme is determined, and ultrasound-guided technology is used to locate the electrode positions and implement coherent electrical stimulation therapy.

Disclosed are devices and methods for determining and memorializing chest electrode placement locations on a user. The device utilizes two datum reference points in the patient's anatomy, the Jugular notch and the Xiphoid process, which are easily found and repeatable and which serve to ensure the device is in the correct position to memorialize chest electrode placement locations. The device may comprise a first plate and a second plate operatively coupled to the first plate so that the second plate slides along a vertical axis of the first plate and the first plate slides along a vertical access of the second plate. The device may further comprise a template grid having a plurality of cells printed thereon. The template grid may have a coordinate system for identifying each of the plurality of cells. The template grid may be modified to indicate a set of chest electrode placement locations on the user.

The invention provides an anti-interference cross-hole induced polarization observation system and method, and relates to the technical field of cross-hole induced polarization, and the method comprises the steps: enabling a transmitter and a multi-pole full-waveform receiver to be disposed on the ground, and enabling a transmitting electrode to be disposed in a transmitting well; an electrode string is placed in the measuring well, the electrode string comprises a plurality of electrode terminals which are longitudinally arranged according to a preset distance array, and each electrode terminal is connected with a multi-pole full-waveform receiver; a multi-pole full-waveform receiver is adopted to simultaneously acquire multiple groups of full-waveform measurement data of multiple electrode terminals in the electrode string; target parameters are calculated according to the multiple sets of full-waveform measurement data of the multiple electrode terminals; according to the invention, the observation efficiency of cross-hole induced polarization can be improved, the measurement error is reduced, and the observation accuracy is improved.

This utility model discloses a puncture assembly and an electrode placement device. The puncture assembly includes an outer cylinder and an inner core. The outer cylinder includes a body and a positioning part, with a first channel inside the body. The positioning part has at least one positioning groove. The inner core includes a core body and at least one positioning handle. When the inner core is placed in the first channel, the positioning handle engages with the corresponding positioning groove. Utilizing the cooperation between the positioning handle and the positioning groove, the inner core and outer cylinder of the puncture assembly can be positioned, facilitating adjustment of the movement angle during puncture, reducing puncture difficulty, and minimizing patient discomfort.

This is a hypotube probe comprising a main body, a curved tip, a stylet, and an electrode. The main body is configured to be placed in the patient's subdural space and has a curved tip at its anterior end. This tip is configured to be inserted at an angle to the subdural space in order to advance the main body to the target site within the subdural space. The stylet is configured to enter the channel and, after being inserted into the channel, advance to the distal opening and seal the distal opening. The electrode is configured to be inserted into the channel and then advance through the distal opening for placement in contact with the dural tissue within the subdural space.

An atomic layer deposition (ALD) method and a barrier film are disclosed. The ALD method involves placing a substrate close to an electrode coupled to a power source, exposing the substrate to an oxygen-containing or nitrogen-containing gas at 0.8 Torr or less, and applying a voltage of at least 700 volts to the electrode using the power source to induce a plasma state in the oxygen-containing or nitrogen-containing gas near the substrate. High-quality barrier films can be fabricated using this method.

A method of operating a cardiac rhythm management (CRM) system includes: cyclically calculating, by a medical device of the CRM system, an impedance between a housing electrode included in a housing of the medical device and each of a plurality of pacing electrodes, where the plurality of pacing electrodes includes a left bundle pacing electrode configured to be placed in a left bundle of a subject; comparing the calculated impedance with one or more specified impedance values; and generating an alert regarding pacing electrode placement in response to the calculated impedance corresponding to the pacing electrode differing from the one or more specified impedance values by a predetermined threshold impedance value.

A peripheral nerve stimulator can be used to stimulate a peripheral nerve to treat essential tremor, Parkinsonian tremor, and other forms of tremor. The stimulator can have electrodes that are placed circumferentially around the patient's wrist or arm. Specific nerves in the wrist or arm can be targeted by appropriate spacing of the electrodes. Positioning the electrodes on generally opposing sides of the target nerve can result in improved stimulation of the nerve. The stimulation pattern may alternate between the nerves. Improved stimulation algorithms can incorporate tremor feedback, external data, predictive adaptation, and long-term monitoring data.

This invention relates to the field of medical control technology, specifically to a glioma ECoG electrode localization system based on the fusion of multimodal MRI and intraoperative photographs. It includes a brain imaging data acquisition module for preoperative acquisition of multimodal brain imaging data and an acquisition module for acquiring intraoperative craniotomy photographs for ECoG electrode placement. The system further aligns the multimodal brain imaging data to the same three-dimensional spatial coordinate system; then segments and corrects the multimodal brain imaging data into different regions; and establishes an individualized brain region atlas based on a healthy brain tissue texture model and segmented brain regions. Vascular structures are extracted, and a three-dimensional spatial coordinate system for vascular feature points and electrode contacts is established and transformed. The minimum Euclidean distance is calculated based on the electrode contacts, and the individualized brain region atlas is labeled. This invention addresses the problems of insufficient spatial positioning accuracy of electrode contacts and difficulty in quantifying tumor-electrode distance during surgery for glioma patients, facilitating intraoperative determination of the anatomical location of the epileptogenic focus by surgeons.