126 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.

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 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 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 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.

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.

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.

The invention relates to a welding method for a vehicle body comprising a welding device. The method comprises the following steps: applying an adhesive element (25) to a first part (22) or to a second part (23); bringing the first part (22) into contact with the second part (23); wherein the first part (22) comprises a cavity; fitting a pin (24) into the cavity, thereby defining an assembly to be welded; placing a first electrode on a portion of the pin (24) and placing a second electrode of the welding device on the assembly; the first electrode and the second electrode being arranged on either side of the assembly to be welded; welding the assembly using the first electrode and the second electrode; and the following substeps: generating a first pulse for a first duration; generating a second pulse, after a rest period, for a second duration.

A method, system, device, and medium for EEG emotion recognition based on mutual information attention of adjacent channels are disclosed. The method includes: acquiring EEG data; preprocessing the EEG data; mapping the EEG data into a channel matrix to obtain channel position information and channel data vectors; calculating the average mutual information between each channel data vector and its adjacent channel data vectors; using the average mutual information as the attention weight for that channel data vector; and feeding the EEG data with the attention weight into a CapsNet to complete EEG emotion recognition. The system, device, and medium are used to implement an EEG emotion recognition method based on mutual information attention of adjacent channels. This invention can reduce the influence of noise information caused by electrode placement deviations and improve the accuracy of emotion recognition.

The application relates to the technical field of medical devices and particularly discloses a head needle precise registration and positioning system based on electrode placement positions of a 10-20 electroencephalogram system, which comprises the following modules: a first coordinate registration module, which establishes an electronic head model three-dimensional model based on physical positioning results of all anatomical reference points in a 10-20 electroencephalogram system electrode distribution map by means of an electronic head model and a positioning probe; a second coordinate registration module, which registers 10-20 electroencephalogram system electrode distribution data marked in the electronic head model three-dimensional model with traditional head needle partition data, and determines the coordinates of a target treatment area in the electronic head model three-dimensional model; and a physical positioning module, which guides an operator to position the physical position range of the target treatment area by means of the positioning probe based on the probe coordinate values of the positioning probe in the electronic head model three-dimensional model and the coordinate range of the target treatment area in the electronic head model three-dimensional model, so that the precision of head needle treatment is effectively improved.

The utility model relates to the technical field of interdigital electrodes, and discloses a stickable interdigital electrode device which comprises a substrate material, connecting holes are formed in the left side and the right side of the lower portion of the substrate material, connecting blocks are connected into the connecting holes in a sliding mode, and second electrodes are fixedly connected to the rear sides of the connecting blocks. The front side of the connecting block is fixedly connected with a first electrode, the first electrode comprises electrode pins and electrode fingers, the electrode pins are fixedly connected to the front side of the connecting block, and the electrode fingers are evenly distributed on the upper portion of the front side of the substrate material in a crossed mode. According to the utility model, a user can freely select a substrate material and uniformly paste a self-made material on the substrate, and the electrode is provided with the conductive adhesive, so that the electrode can be firmly pasted and directly used after being placed on the material, the problem of non-uniform coating is solved, and the user can freely select the substrate material.

A high-voltage resistant enhancement-mode GaN device with enhanced integration is provided. A nucleating layer, a buffer layer, and a GaN layer are sequentially stacked on a silicon substrate. A p-GaN region and an AlGaN barrier layer are formed on the GaN layer, with a first n-GaN region embedded in the p-GaN region. A first metal electrode is connected to the first n-GaN region, while a second metal electrode, serving as a gate, is placed on a first SiO2 oxide layer above the p-GaN region. A fourth metal electrode acts as a drain on the AlGaN barrier layer. A second n-GaN region divides the AlGaN barrier into two sections, with a third metal electrode on a second SiO2 oxide layer connected to the first metal electrode as a source. The second n-GaN region and the third metal electrode mitigate edge effects.

The invention relates to a tool (1) for crushing rock by high power impulses, comprising at least one energy recovery module (30-1) comprising at least one capacitor (C1, C2, C3) and a secondary pair of electrodes (30-1A, 30-1B), the at least one capacitor (C1) of the first energy recovery module (30-1) being electrically connected to the second electrode (20B) of a main pair of electrodes (20A, 20B) as well as to the ground (M), the secondary pair of electrodes (30-1A, 30-1B) comprising a first electrode (30-1A), electrically connected to the midpoint (M1) located between the second electrode (20B) of the main pair of electrodes (20A, 20B) and the at least one capacitor (C1), and a second electrode (30-1B), placed facing the first electrode (30-1A) of the secondary pair of electrodes (30-1A, 30-1B) while being spaced apart by a second inter-electrode distance (D2) and electrically connected to the ground (M).

Systems and methods for virtual electrode placement for electrode localization are provided. In one example, a virtual placement system includes a memory for storing instructions and a processor for executing the instructions as operations. The operations include virtually placing a virtual layout of virtual electrodes on a body surface geometry of a patient. The virtual electrodes represent respective physical electrodes arranged on the patient. The operations also include localizing the physical electrodes in three- dimensional space based on the virtual layout of the virtual electrodes.

Methods, systems and apparatuses for delivering electrical or other therapy in the vicinity of the eye. One or more electrodes are positioned on or near the eye, such as contacting the superior or inferior eyelids, on the conjunctiva or medial or lateral canthus, on or inside the nose, or on the forehead. A remote or return electrode is optionally positioned elsewhere on the patient on the torso, neck, back, a limb, an extremity, on the back or side of the head, or near the ear, mandible or temple. A variety of pulse generator positions and support apparatuses are disclosed as well. The pulse generator is used to deliver one or more of therapy or diagnostic electrical pulses to the patient to address a condition of the eye.

The utility model relates to the field of newborn electroencephalogram, in particular to a three-dimensional contrast model for newborn electroencephalogram examination, which is of a three-dimensional structure, is provided with electrode positions based on an international 10-20 system, can be rotated to adjust angles, and is convenient for workers to contrast and paste electrodes. Comprising a ball, a nose protrusion is fixedly arranged on the front side of the ball, a left ear protrusion is arranged on the left side of the ball, a right ear protrusion is arranged on the right side of the ball, a plurality of round plates are bonded on the upper side of the ball with the three portions as base points, and protruding marks are bonded on the outer surfaces of the round plates. A blind hole is upwards embedded in the bottom of the ball body, a moldable support is arranged below the blind hole, the top of the support extends into the blind hole and is fixed in a bonding mode, and the bottom of the support is connected with an angle-adjustable base. The support is a stainless steel coil pipe. The device is easy to operate, convenient to use and suitable for various patients.

This invention discloses a method for noise reduction and electrode placement optimization in a single-arm electrocardiogram (ECG) system, comprising the following steps: Step S1: Acquiring electromyographic (EMG) signals at multiple preset electrode positions on the upper arm of the subject, and obtaining EMG signal intensity data and EMG signal stability data for each electrode position; Step S2: Determining one or more electrode positions with lower EMG signal intensity and better signal stability from the multiple preset electrode positions, and using the one or more electrode positions as the initial electrode arrangement; Step S3: Acquiring the subject's motion state data in real time while the subject is in motion; Step S4: Dynamically selecting electrode channels with fewer EMG signals in the current motion state from the initial electrode arrangement for ECG signal acquisition. This invention can reduce the introduction of EMG signals at the source, ensuring high-quality and stable ECG signals can be obtained in different individuals and under various motion states.

The specification provides a temperature sensor integrated into textiles, and manufacturing methods thereof. The temperature sensor comprises a sensing layer made from a mixture of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and reduced graphene oxide, applied to textile surfaces. This layer is connected to two silver electrodes, facilitating temperature detection via signal processing executed by a microcontroller. The microcontroller applies a input signal through one electrode and captures the feedback signal from the other to accurately compute the temperature. The manufacturing process of this sensor includes inkjet-printing the sensing layer onto the textile and applying silver electrodes using either drop-casting or extrusion-printing methods. These production techniques ensure precise electrode placement and scalable manufacturing, making the sensor ideal for wearable technology, where flexibility and durability are valuable.

The present application relates to a kind of electrochemical electrode system and its use, electrochemical system and its use and method for removing water hardness.The electrochemical electrode system and electrochemical system of the present application, including cathode and anode, the shape of the cathode is conical cylinder, and a plurality of through holes are formed on wall;The anode is composed of the conductive particle filler filled in the conical cylinder cathode;The side of the cathode and the particle filler of anode contact with anode is insulated.The electrode of the present application changes the traditional electrode configuration and electrode placement mode, selects special conical cylinder cathode and particle anode, and fills particle anode in conical cylinder cathode, and the design can infinitely small shorten electrode spacing to reduce energy consumption.