52 results about "Electrode implant" patented technology

The embodiment of the invention discloses an electrode orientation determination method, device and system applied to a directional stimulation electrode. The method comprises the following steps: acquiring a brain CT image corresponding to a target user of which the brain is implanted with at least one directional stimulation electrode and a preset identification image slice corresponding to the directional stimulation electrode; wherein the preset identification image slice comprises a preset identification orientation vector of the direction identification; determining a target identification image slice containing a direction identification image from the brain CT image based on the target trajectory information of the directional stimulation electrode in the brain CT image; matching the target identification image slice with the preset identification image slice, and determining the preset identification orientation vector corresponding to the matched preset identification image slice as the direction identification orientation of the directional stimulation electrode implanted into the brain, thereby improving the discrimination precision and efficiency of the direction identification orientation of the directional stimulation electrode. Therefore, the objectivity, the accuracy and the real-time performance of the fragmented electrode orientation recognition result are improved.

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 invention relates to a method and a device for recommending electrode stimulation frequency. The electrodes are at least one selected from a plurality of electrodes implanted into a human body for electrical stimulation, the method comprising: obtaining impedance of each of the electrodes at different frequencies; calculating the standard deviation and the average value of the impedance of the electrode under each frequency; the health degree of each electrode at different frequencies is evaluated according to the proportional relation between the value of the impedance deviation average value and the standard deviation; the number of the electrodes with the optimal health degree under each frequency is calculated; and determining the frequency corresponding to the maximum number as the recommended frequency. The electrical conductivity of the electrode is represented by the electrode impedance, and the stimulation frequency of the electrode can be recommended to medical personnel by analyzing the measured electrode impedance under different frequencies, so that the problem that the current stimulation frequency of the electrode is inappropriate due to the change of the electrical conductivity of the electrode is solved.

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 method for monitoring neural activity responsive to a stimulus in the brain of a subject under general anesthesia, the method comprising: applying the stimulus to one or more of at least one electrode implanted in a target neural structure of the brain; detecting, at one or more of the at least one electrode in or near the target neural structure of the brain, a resonance response from the target neural structure induced by the stimulus; and determining one or more waveform characteristics of the detected resonance response.

A method includes receiving a user input first signal configured to trigger a device to perform a measurement procedure utilizing at least one electrode implanted within a recipient's body. The method further includes, in response to said receiving the user input first signal, performing an evaluation of whether performing a conditioning procedure of the at least one electrode is potentially warranted prior to performing the measurement procedure. The method further includes generating and communicating a user output signal indicative of a result of the evaluation to the user. The method further includes receiving a user input second signal configured to trigger the device either to perform the conditioning procedure prior to performing the measurement procedure or to perform the measurement procedure without performing the conditioning procedure prior to performing the measurement procedure.

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.

Ventricle-from-atrium (VfA) cardiac therapy may utilize a tissue-piercing electrode implanted in the left ventricular myocardium of the patient's heart from the right atrium through the right atrial endocardium and central fibrous body. The exemplary devices and methods may determine whether the tissue-piercing electrode is achieving effective left ventricular capture. Additionally, one or more pacing parameters, or paced settings, may be adjusted in view of the effective left ventricular capture determination.

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.

The invention particularly relates to a flexible electrode implantation mechanism imitating a mosquito brain. The implanting mechanism comprises a base, an implanting driving device, an implanting cutting device, an implanting guiding device and an implanting stretching device; the implantation driving device is adjustably mounted on the base bottom plate; the implantation cutting device, the implantation guiding device and the implantation stretching device are sequentially and adjustably mounted on the base positioning table from top to bottom in the vertical direction; the implantation cutting device performs meninx cutting based on position adjustment in the vertical direction; the implantation stretching device is adjusted on the basis of the position in the vertical direction, and the cut meninx is stretched outwards; the implantation driving device performs flexible electrode implantation driving on the outwards stretched meninx based on reciprocating displacement in the vertical direction; and the implantation guide device is used for carrying out flexible electrode implantation path constraint on the outwards stretched meninx based on position adjustment in the vertical direction. According to the invention, when the flexible electrode is implanted, not only is the tissue damage probability reduced, but also the implantation effectiveness and success rate are improved.

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).

1. The name of the product of this design: electrode implantation surgical device. 2. Purpose of the product of this design: to accurately and efficiently implant neural electrodes into the biological brain to achieve neural decoding and regulation. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

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.

A method for reducing foreign body response in a subject caused by an electrode implanted in a subject's neural tissue at a target site provides positioning a device having a body, ultrasonic transducer, and acoustic coupling medium in contact with the neural tissue proximate to the target site. The method continues with activating a transducer, generating acoustic vibrations, transmitting the acoustic vibrations to the neural tissue at the target site, and applying the acoustic vibrations to the neural tissue at the target site sufficient to reduce the foreign body response in the neural tissue at the target site. The acoustic vibrations are preferably in the ultrasonic range and are pulsed for a duration of 5-200 milliseconds. A treatment protocol may consist of repeat sessions in which the transducer is activated and the acoustic vibrations are applied for 1-15 minutes, then turned off for 1-15 minutes, and repeated 2-10 times.

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.

Atria-to-ventricle (VfA) cardiac therapy can utilize a tissue-penetrating electrode implanted from the right atrium through the right atrial endothelium and the central fibrous body into the left ventricular myocardium of a patient's heart. The example apparatus and method can determine whether the tissue-penetrating electrode is achieving effective left ventricular capture. Additionally, one or more pacing parameters or pacing settings can be adjusted based on an effective left ventricular capture determination.