26 results about "Electrode implant" patented technology

A computer-implemented method for decoding speech, language and related semantic neural activity includes: collecting neural signals from an array of electrodes implanted in or on a brain; extracting features from the neural signals to detect distributed signatures of linguistic encoding using non-contiguous coverage of the electrode array; and decoding linguistic units, including phonemes and semantic embeddings from the extracted features. The decoding can utilize a custom neural language model for a limited or impaired brain adapted from a generalized neural language model trained on other human brains with intact speech, linguistic and cognitive regions.

The invention relates to the technical field of medical product processing and manufacturing, and discloses a rubber coating mold, a brain electrode implant, a preparation method of the brain electrode implant and a brain-computer interface system. Wherein the rubber coating mold comprises an upper mold and a lower mold, the upper mold is provided with an upper mold cavity groove, the lower mold is provided with a lower mold cavity groove, the upper mold is detachably connected to the lower mold, the upper mold cavity groove and the lower mold cavity groove define a forming cavity, and the forming cavity is used for coating the periphery of a brain electrode and a printed circuit board which are fixedly connected in a stacked mode to form a flexible protection body; the rubber coating mold is provided with a positioning groove used for embedding a main body part of the printed circuit board and further provided with a receding groove used for containing a contact area of the brain electrode, and the positioning groove, the forming cavity and the receding groove are sequentially arranged. And the rubber coating mold is used for positioning the non-rubber-coated product, so that the forming quality is improved. The contact area of the brain electrode is located in the receding groove, damage caused by complete pressing is avoided, excessive floating caused by complete receding is also prevented, and finally the brain electrode implant wrapped with the flexible protection body is obtained.

Presented is a system and method for implanting a flexible electrode array in a biological organ. The system includes an electrode implant tool that includes an elongate rod and an electrode implant assembly having a plurality of attachment members. The electrode implant assembly further includes a ring member connected to each of the attachment members. A variable magnetic field generator is arranged in the ring member. The system uses electromagnetic force to temporarily strengthen the flexible electrodes allowing the penetration into the brain.

The application relates to the technical field of cochlear surgery, and discloses an electrode implanting device and a cochlear surgery robot. Firstly, in order to reduce the additional injury of a patient and shorten the recovery period, the cochlear structure is scanned and planned, and an electrode implanting channel with a small aperture is drilled; the electrode implanting device which can be connected with the mechanical arm of the cochlear surgery robot is used, the implanting end of a guide tube module is selectively placed in the electrode implanting channel, and the electrode implanting path is stabilized; a driving module arranged in a shell abuts against the electrode, the driving module can selectively drive the electrode to move along the extension direction of the guide tube module so as to implant the electrode into the cochlea through the guide tube module, shaking caused by manual implanting is avoided, the operation is simple, and the implanting speed is uniform; meanwhile, a driven module is arranged in the shell and comprises a driven wheel abutting against the electrode, when the electrode moves, the electrode drives the driven wheel to rotate, and the implanting action of the electrode is further stabilized, and the recovery effect is good.

A generator system for generating output pulses to be applied to a multi-electrode implant of Pulsed Field Ablation system, the generator system including: a system controller; a pulse generator for generating high voltage pulses from an input power supply under control of said system controller; and an output controller for receiving said generated high voltages pulses and outputting a predetermined sequence of therapeutic pulses to said multi-electrode implant.

The invention provides a flexible electrode for a brain-computer interface and a preparation method of the flexible electrode. The flexible electrode comprises an electrode body layer, an auxiliary transmission layer and a stripping layer. Wherein the electrode body layer and the auxiliary transfer layer are at least partially connected to form a stress part of an external driving part, and the stripping layer is arranged between the electrode body layer and the auxiliary transfer layer, so that preset areas of the electrode body layer and the auxiliary transfer layer are separated to form a gap. According to the flexible electrode, the area of a bone window needing to be cut in the skull in the implanting process of the electrode can be remarkably reduced, and therefore the clinical operation risk of electrode implanting is greatly reduced.

Provided is a ceramic susceptor provided with a purge gas flow path, a vacuum suction path, and a thermocouple insertion path therein so as to be housed in one layer without losing their respective functions. The ceramic base is provided with: a disk-shaped ceramic plate assembly including an upper ceramic plate and a lower ceramic plate; an internal electrode implanted in the ceramic plate assembly; and a purge gas groove, a vacuum suction groove, and a thermocouple insertion groove provided on the joining surface side of the upper ceramic plate or the lower ceramic plate, respectively. The ceramic plate assembly has a central section and a peripheral section. The purge gas groove, the vacuum suction groove, and the thermocouple insertion groove each have a straight portion in a central section. The angle [theta] 1 formed by the linear portion of the purge gas groove and the linear portion of the thermocouple insertion groove, and the angle [theta] 2 formed by the linear portion of the purge gas groove and the linear portion of the vacuum suction groove satisfy 90 DEG < [theta] 1 < 180 DEG, 135 DEG < [theta] 2 < 225 DEG, and [theta] 1 < [theta] 2.

VfA cardiac therapy uses an implantable medical device or system. The implantable medical device includes a tissue-piercing electrode implanted in the basal and / or septal region of the left ventricular myocardium of the patient's heart from the triangle of Koch region of the right atrium through the right atrial endocardium and central fibrous body. The device may include a right atrial electrode, a right atrial motion detector, or both. The device may be implanted completely within the patient's heart or may use one or more leads to implant electrodes in the patient's heart. The device may be used to provide cardiac therapy, including single or multiple chamber pacing, atrioventricular synchronous pacing, asynchronous pacing, triggered pacing, cardiac resynchronization pacing, or tachycardia-related therapy. A separate medical device may be used to provide some functionality for cardiac therapy, such as sensing, pacing, or shock therapy.

The utility model relates to a spiral electrode implanting device, belong to medical instrument technology or the field of neuroscientific research, spiral electrode implanting device is located on the intracranial blood vessel wall, including a spiral support, electrode wire and developing object, the body of spiral support is a spiral shape, the electrode wire that is provided with on the support body is a spiral shape, the both ends of spiral support are equipped with developing object, the utility model can adopt the way of through blood vessel intervention, implants the electrode, gathers the electric signal, simple structure can realize high degree, electrode and blood vessel wall good adhesion, electrode gathers signal effect good, the cross section is small, can be transported through the small sheath, can reach the far end small blood vessel far end, satisfy brain deep position electrode collection and the electrode implanting requirement of intracranial multiple point (brain area).

The electrode implanting device comprises: a plurality of implanting assemblies corresponding to a plurality of electrode wires one by one, each implanting assembly has opposite first and second ends in a first direction, and the first end is pre-connected to the front end of the corresponding electrode wire; a fixing assembly for fixing the implanting assembly and a signal transmission module, the implanting assembly is located in front of the signal transmission module in a second direction, and the second direction is perpendicular to the first direction; the electrode wire comprises a first section extending from the front end to the second end along the first direction, and a second section connecting the first section and the signal transmission module; the interval between the first fixing position of the implanting assembly on the fixing assembly and the second fixing position of the signal transmission module on the fixing assembly in the second direction is adjustable, so as to adjust the length of the second section according to the target moving amount of the implanting assembly in the first direction. Through the scheme, the overhanging part of the electrode wire can be in a natural straightening state, the electrode wires are prevented from winding with each other, and the electrode wire implanting efficiency is improved.

The application provides a flexible electrode implanting robot, method, device, medium and product, relates to the technical field of medical devices, and aims to solve the defects of low implanting efficiency, poor implanting precision and poor repeatability of the flexible electrode in the prior art, improve the implanting efficiency and implanting precision of the flexible electrode, and improve the repeatability of the flexible electrode implanting. The application comprises a base trolley, a mechanical arm and an electrode implanting device. The base trolley is used for carrying the mechanical arm and the electrode implanting device. The first end of the mechanical arm is mechanically connected to the base trolley, and the electrode implanting device is installed at the second end of the mechanical arm. The mechanical arm is used for driving the electrode implanting device to move. The electrode implanting device is used for grabbing the flexible electrode and implanting the flexible electrode into a target position.

The invention belongs to the technical field of artificial cochlea, and discloses an artificial cochlea electrode implantation device and implantation method. The electrode implanting device comprises a driving module and an implanting module, the driving module comprises a driving part and a transmission shaft, the transmission shaft is connected to the output end of the driving part, and the driving part is used for driving the transmission shaft to rotate around the X-axis; the implanting module is arranged on the output end side of the driving module and comprises an outer support, a driving roller and a driven roller, the driving roller and the driven roller are arranged in the outer support in a rotating mode around the X axis, the driving roller is arranged on the part, extending into the outer support along the X axis, of the transmission shaft in a sleeving mode, and a long guiding channel used for allowing an electrode to penetrate and extending along the Y axis is formed in the outer support. The electrode is clamped between the driving roller and the driven roller which are relatively matched along the Z axis, and the transmission shaft can drive the driving roller to rotate around the X axis so as to drive the electrode to translate and implant in the long guide channel. The electrode can be automatically implanted into the cochlea of a patient so as to better protect the cochlea of the patient, and the implantation accuracy and the implantation effect of the electrode can be ensured.

The application belongs to the technical field of electrophysiological detection, and relates to an intraoperative electrode implanting device and a reinforcing method thereof. The application provides an intraoperative implanting device for high-throughput deep cortex electrode, which comprises a puncture universal arm, a puncture universal arm adapter, a micrometer sliding table, an electrode holder fastening device and a front probe protection-electromagnetic shielding two-in-one element. The reinforcing method for the high-throughput deep cortex electrode comprises the steps of hanging, dispensing, fine adjustment and fixing. The test and use results show that the Neuropixels1.0 high-throughput cortex electrode reinforced by the reinforcing method can complete cortex implanting without breakage in the implanting process. The method can effectively overcome the defect that breakage occurs in the implanting process of the prior art. The method can meet the requirements of aseptic operation, safety and convenience in the whole implanting process.

The invention discloses an epileptic seizure prediction system based on a subcutaneous implanted electrode and a processing method. Comprising a signal acquisition module, a preprocessing module, a feature extraction module, a prediction analysis module and an early warning module. The signal acquisition module is used for acquiring high-quality electroencephalogram signals through an electrode implanted under the skull skin; the preprocessing module carries out filtering and noise reduction on the signal; the feature extraction module extracts time domain and frequency domain low-level features through a first coding unit, and converts the time domain and frequency domain low-level features into high-level features for representation by using a pre-trained Transform encoder; the prediction analysis module calculates an epileptic seizure risk probability value based on the high-level features; and the early warning module triggers local early warning when the probability value exceeds a threshold. According to the invention, through combination of innovative hardware implantation and an advanced algorithm, high-precision, high-robustness and personalized adaptive epileptic seizure prediction is realized, and an effective early warning time window is provided for a patient.

Products of manufacture for delivering hydrogen, hydrogen peroxide, and / or oxygen to a tissue in need thereof comprising i) a hydrated hydrogel, and ii) at least one cathode electrode and at least one anode electrode implanted within or upon the hydrated hydrogel.

One example discloses a method of stimulating a target neural structure which comprises delivering a pulse train to an electrode implanted in or near the target neural structure. The pulse train comprises one or more compensation pulses which are not charge balanced and impart a charge so as to reduce or prevent a stimulation artefact after the pulse train, and one or more counter balancing pulses which are not charge balanced and impart a charge opposite to the charge imparted by the one or more compensation pulses. The counter balancing pulses substantially charge balance with the compensation pulses. Another example discloses a method of monitoring neural activity, comprising delivering a calibration pulse to an electrode implanted in or near a target neural structure, determining a compensation current or voltage that is to reduce a stimulation artefact based on waveform characteristics extracted from a response to the calibration pulse and delivering a pulse train comprising the determined compensation current or voltage and detecting neural activity of the target neural structure after delivering the pulse train. Apparatus and a storage medium storing instructions for carrying out the method are also disclosed.

Processing circuitry of a system configured to determine a patient state based on sensed signals including posture and activity information and control delivery of electrical stimulation therapy to the patient via electrodes implanted proximal to target tissue of the patient. The sensed signals also include impedance measurement, and other bioelectrical signals, where sensing is interleaved with the electrical stimulation therapy. Responsive to determining the patient state, select an action, wherein the selected action comprises one or more of: store collected information, upload the collected information to an external computing device, and output an electronic signal comprising an alert.

The invention relates to the technical field of brain-computer interfaces, in particular to an implantation control device and an electrode implantation system. The implantation control device comprises a shell, an implantation rod, a sliding assembly, a locking assembly, a driving device and a magnetic attraction piece; the locking assembly comprises a spring bolt and a lock seat. The lock seat is elastically connected with the inner wall of the shell; the sliding assembly comprises a first fixed part and a movable part; the first fixing part is arranged in the shell and is fixedly connected with the shell; the moving part is respectively connected with the lock tongue, the implanting rod and the driving device, so that the driving device can drive the implanting rod connected with the moving part to lift when driving the moving part to lift, and further the lock tongue is clamped with the lock seat; one end, far away from the moving part, of the implanting rod extends out of the shell and is connected with the magnetic attraction piece; the lock seat can move in the preset direction under the action of external force, so that the spring bolt and the lock seat are unlocked. Therefore, the control device can be implanted in a miniaturized manner, and the flexible electrode can be implanted quickly, flexibly and reliably.

A ceramic susceptor is provided with: a ceramic plate joined body comprising a first ceramic plate and a second ceramic plate that are joined to each other via a ceramic joining interface; an internal electrode implanted in the first ceramic plate; and a terminal hole that is provided so as to penetrate the second ceramic plate in the thickness direction from one surface of the second ceramic plate, traverse the ceramic bonding interface, and reach an internal electrode or the like in the first ceramic plate. The terminal hole is provided with a small-diameter part and a large-diameter part, wherein the small-diameter part forms the side, close to the bottom, of the terminal hole, and the large-diameter part forms the side, away from the bottom, of the terminal hole, and the diameter of the large-diameter part is large. A metal small hole which is embedded in the small-diameter part of the terminal hole; a terminal bar inserted into the terminal hole and the small hole, one end of the terminal bar being directly or indirectly connected to the internal electrode; and an isolation structure comprising a space and / or an insulating material that electrically isolates the terminal rod and the small hole from the ceramic bonding interface.

The application relates to a Kaf electrode implanting device, which comprises a hand-held part, a transmission part and an execution part, a control unit is arranged on the hand-held part, the control unit is used for outputting operation instructions, the transmission part is used for transmitting the operation instructions to the execution part, and the execution part is used for pushing a Kaf electrode to a target area on a nerve bundle in response to the operation instructions. The application avoids the damage of nerve fibers caused by the deepening of surgical instruments, reduces the operation difficulty and time, and reduces the operation risk.

The invention relates to the field of medical images, and provides an SEEG electrode distribution method and system based on brain region function distribution. The SEEG electrode distribution method based on brain region function distribution comprises the steps that a CT image and an MR image of the brain are obtained, the CT image comprises images of multiple electrodes implanted into the brain, and each electrode comprises multiple contacts; determining position information of the plurality of contacts according to the CT image; determining brain region distribution of the plurality of contacts according to the position information of the plurality of contacts and a registration relation between the CT image and the MR image; and determining a connection channel corresponding to each contact according to the brain region distribution and the distribution strategy of the contacts. Compared with the connection channel corresponding to each contact determined by experience, the accuracy and efficiency of contact distribution can be improved.

The invention provides a flexible electrode implantation assembly, a temporary nerve stimulator system and an implantable nerve stimulator system. The flexible electrode implantation assembly comprises a flexible paddle electrode, a flexible traction tube and a first guide wire. The flexible paddle electrode comprises a far-end contact part, and the far-end contact part is provided with an auxiliary fixing part. The flexible traction tube is provided with a far-end outlet and a far-end inlet. The first guide wire is movably arranged in the flexible traction tube in a penetrating mode, the far end of the first guide wire penetrates out of the far-end outlet, then is connected with the auxiliary fixing part and penetrates back into the tube cavity through the far-end inlet, and therefore a detachable traction ring part is formed outside the flexible traction tube, and the auxiliary fixing part is restrained on the outer wall of the flexible traction tube. According to the structure, when the flexible paddle-shaped electrode is conveyed, reliable conveying can be achieved through the flexible traction tube and the first guide wire, the far end of the flexible paddle-shaped electrode is attached to the outer wall of the flexible traction tube, and the problem that the flexible paddle-shaped electrode cannot be implanted to a target position in a minimally invasive and accurate mode due to the size of the flexible paddle-shaped electrode can be effectively solved.

The application provides a flexible electrode implanting assembly, a temporary nerve stimulator system and an implantable nerve stimulator system. The flexible electrode implanting assembly comprises a flexible paddle electrode, a flexible traction tube and a first guide wire. The flexible paddle electrode comprises a distal contact portion, and the distal contact portion is provided with an auxiliary fixing portion. The flexible traction tube is provided with a distal outlet and a distal inlet. The first guide wire is movably arranged in the flexible traction tube, the distal end of the first guide wire is connected with the auxiliary fixing portion after being led out of the distal outlet, and the first guide wire is led back into the lumen through the distal inlet, so that a detachable traction ring portion is formed outside the flexible traction tube to constrain the auxiliary fixing portion to the outer wall of the flexible traction tube. The above structure can realize reliable delivery through the flexible traction tube and the first guide wire when the flexible paddle electrode is delivered, and the distal end of the flexible paddle electrode is attached to the outer wall of the flexible traction tube, which can effectively solve the problem that the flexible paddle electrode cannot be minimally invasively and accurately implanted into the target position due to its own size.

The power supply member (50) supplies power to the electrode implanted in the ceramic base material. The power supply member (50) is provided with: an electrode-side terminal (51) that is formed from a high-melting-point metal material and that is joined to an electrode; an intermediate member (52) which is formed from a Cu-containing material and which is directly bonded to the electrode-side terminal (51) without using a solder; a cable support member (53) formed from a Cu-containing material and joined to the intermediate member (52); and a cable (56) that is formed from a Cu-containing material and that has an end surface (56aa) of one end (56a) welded to the cable support member (53).

The present application relates to a method and device for recommending electrode stimulation frequency. The electrode is at least one selected from a plurality of electrodes implanted into a human body for electrical stimulation, and the method comprises: obtaining impedance of each of the electrodes at different frequencies; calculating standard deviation and mean value of the impedance of the electrodes at each frequency; evaluating health of each of the electrodes at different frequencies according to the proportion of the value of the impedance deviating from the mean value to the standard deviation; calculating the number of the electrodes with optimal health at each frequency; and determining the frequency corresponding to the maximum number as the recommended frequency. The present application uses electrode impedance to represent the conductivity of the electrode, and by analyzing the measured electrode impedance at different frequencies, the medical personnel can be recommended the stimulation frequency of the electrode, so as to solve the problem that the current stimulation frequency of the electrode is inappropriate due to the change of the conductivity of the electrode.

The application discloses an XMR image-guided brain deep electrode implanting robot, and aims at the low positioning accuracy of the existing device for assisting brain electrode implanting, wherein a first driving assembly is used to drive a first space movement assembly to realize reciprocating movement in the pitching direction, so that the positioning of the brain electrode in the first space is realized; the second space movement assembly is slidably connected with the first space movement assembly, and the brain electrode is installed on the second space movement assembly; a second driving assembly is used to drive the second space movement assembly to slide along the slide rail of the first space movement assembly, so that the positioning of the brain electrode in the second space is realized; the positioning of any point in the working space can be realized by using the rotation along two intersecting axial directions, and the positioning accuracy of the brain electrode is improved.