40 results about "Electrode implant" patented technology

The invention discloses a flexible stimulating electrode for magnetic control guide implantation, which comprises an electrode wire main body, a conical electrode tip is arranged at the end part of the electrode wire main body, and a cavity is formed in the electrode wire main body; the plurality of stimulation contacts are arranged at equal intervals along the length direction of the electrode wire main body; the multiple signal recording contacts are arranged in the length direction of the electrode wire body at equal intervals; the conductive wire is electrically connected with each stimulation contact and the signal recording contact; the guide magnet is mounted in the cavity of the electrode wire main body; and the magnetic control system is used for generating a magnetic field. The magnetic field generated by the magnetic control system can apply magnetic force to the electrode wire main body inserted into the body of a patient, so that the position of the electrode wire main body is finely adjusted; through the stimulation contacts arranged on the electrode wire body, different areas of a patient can be electrically stimulated, and output current is recorded through the signal recording contacts, so that the stimulation intensity of the stimulation contacts is controlled in a closed-loop mode, and precise stimulation is achieved.

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.

The application provides a magnetic resonance compatible deep brain electrode implanting robot, which comprises a frame, a first driving assembly, a posture adjusting assembly, a first rotating assembly, a pulley assembly, a second driving assembly and a second rotating assembly, the first driving assemblies are symmetrically arranged on the two sides of the frame, the cylinder support of the first driving assembly is fixed on the frame, the posture adjusting assembly is slidably connected with the annular slide rail of the first rotating assembly through a guide pulley, the first rotating assembly and the pulley assembly are symmetrically arranged on the two sides of the frame, the second driving assemblies are symmetrically arranged on the fixed plate of the frame, and the second rotating assembly is located in the middle of the frame, the robot is rapidly positioned by combining hydraulic driving and flexible cable transmission, the position of the puncture needle is adjusted through the posture adjusting assembly, laser sensors and surgical cameras are arranged, the implanting position and the implanting depth of the brain pacemaker are adjusted according to the position information provided by the real-time imaging of the nuclear magnetic scanner, and the accuracy and safety of the minimally invasive directional surgery are effectively improved.

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.

A method for manufacturing an OxRAM resistive memory cell, includes forming a TiN lower electrode, firstly implanting Si atoms into the lower electrode with a first implantation dose and a first implantation acceleration voltage, the first implantation dose being strictly positive and strictly lower than 0.7·1014 cm−2, secondly implanting Si atoms into the lower electrode with a second implantation dose and a second implantation acceleration voltage strictly greater than the first implantation acceleration voltage, the second implantation dose being strictly positive and strictly lower than 0.6·1014 cm−2, the first and second acceleration voltages being selected to have an implantation profile following the first and second implantations having a maximum Si concentration at a depth of between 1 and 3 nm from the upper surface of the lower electrode, depositing an active layer onto the lower electrode implanted, depositing an upper electrode onto the active layer.

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 invention provides a ceramic heater capable of uniformizing the amount of gas ejected from a plurality of transverse holes. The ceramic heater is provided with: a ceramic plate having a first surface and a second surface and having a heater electrode implanted therein; the ceramic shaft is mounted on the second surface of the ceramic plate; the shaft hole is formed in the side wall forming the ceramic shaft in a penetrating manner; a gas channel provided in an arc shape on the second surface of the ceramic plate and forming a gas flow path communicating with the shaft hole; a plurality of gas introduction holes which are provided in the ceramic plate so as to communicate directly above the gas groove, are provided in the longitudinal direction, and are arranged so as to be separated from each other in the longitudinal direction of the gas groove; and a plurality of transverse holes provided in the ceramic plate in the transverse direction from the plurality of gas introduction holes and reaching the first surface or the side end surface of the ceramic plate. At least one of the gas introduction holes has a diameter different from that of the other gas introduction holes so that the gas flow rate in the plurality of gas introduction holes is uniform.

A method for texturing of selected surfaces on a spinal implant. The implant is pretreated with an EDM process by passing the implant by an electrode along an axis, at a predetermined speed, voltage and current. The implant is further conditioned by Al2O3 grit blasting followed by an acidic solution bath and process water rinse, which yields a surface porosity and topography conducive to osseointegration on the surface of the spinal implant.

The invention provides a ceramic base which is not easy to cause conduction failure caused by connection failure of internal electrodes. The ceramic base includes: a ceramic base body having a first surface on which a wafer is placed and a second surface facing the first surface; an internal electrode implanted in the ceramic base body; and a terminal, one end of which is connected to the internal electrode and the other end of which reaches the second surface of the ceramic base body. The internal electrode has a horizontal portion provided parallel to the first surface, and a non-horizontal portion extending from the horizontal portion toward the first surface or the second surface. The horizontal part and the non-horizontal part are integrally formed by bending one electrode, so that a bent part forming a boundary between the horizontal part and the non-horizontal part exists.

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.

Tumor therapeutic fields (TTFields) can be used to treat tumors (such as brain tumors) within a person's head by positioning capacitively coupled electrodes on opposite sides of the tumor and applying an AC voltage between the electrodes. Unlike conventional methods where all electrodes are located on the scalp, at least one of the electrodes is implemented using an implanted device. The implanted device includes a rigid substrate shaped and sized to replace a segment of the human skull. At least one conductive plate is attached to the inside of the rigid substrate, and a dielectric layer is disposed on the inside of one or more conductive plates. Conductive leads are used to apply an AC voltage to the one or more conductive plates.

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.

The invention discloses a flexible electrode hardness enhancing method and system, electronic equipment and a storage medium, and belongs to the technical field of flexible electrodes. The method comprises the steps that a to-be-implanted flexible electrode is acquired; modifying a to-be-implanted flexible electrode with a polymer coating to obtain a hardness-enhanced flexible electrode; and completing the implantation treatment of the flexible electrode by using the flexible electrode with enhanced hardness. According to the application, the flexible electrode is modified with the polymer coating before the flexible electrode is implanted, so that the mechanical hardness of the flexible electrode can be effectively improved, and the applicability and the stability of the flexible electrode implanted into biological tissues can be improved; therefore, the adaptability of the flexible electrode in the scenes of high-precision signal acquisition, multifunctional device research and development, physiological signal long-term monitoring application and the like is expanded.

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.

The invention discloses an electrode implantation assembly and an electrode implantation system. The electrode assembly comprises a microtube, two ends of the microtube are open, and the microtube is provided with a tube cavity; the microneedle is movably arranged in the tube cavity in a penetrating manner; one end of the electrode is detachably connected with one end of the microneedle; the driving mechanism is respectively connected with the microtube and the microneedle, when the driving mechanism drives the microneedle to move towards a first direction, the microneedle is connected with the electrode, the microneedle drives the electrode to move, when the driving mechanism drives the microneedle to move towards a second direction, the microneedle is separated from the electrode, and the first direction is opposite to the second direction. According to the invention, the technical problem that the auxiliary microneedle and the microtube cannot be removed after the electrode is implanted in the existing flexible implantation technology based on catheter guidance is solved.

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 belongs to the technical field of brain-computer interface electrode implanting equipment, and particularly relates to an electrode array pneumatic implanting device which comprises an electrode propelling device. The electrode propelling device comprises a fixed sleeve, a movable push rod, an electrode pressure head and an electrode push head; the upper end of the fixed sleeve is connected with a gas source through a three-way joint; the upper end of the movable push rod extends into the fixed sleeve, and when the air pressure in the fixed sleeve changes, the movable push rod can be controlled to ascend and descend; the electrode push head is fixed at the lower end of the movable push rod and can downwards push the electrode array into the cerebral cortex when moving downwards; the electrode pressing head is fixed to the lower end of the movable push rod and can penetrate through meshes of the titanium mesh and abut against the electrode array when moving downwards. According to the scheme, the structure is simple, stretching and retracting of the movable push rod are controlled through inflation and exhaust of the three-way connector, the error influence factors in the electrode array implanting process are smaller, and the error risk is reduced; and the safety and the stability when the electrode array is implanted are improved.

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.