65 results about "Electrode implant" patented technology

Cochlear implant systems can include an inner ear sensor configured to receive a stimulus signal from the cochlear tissue of a wearer and generate an input signal based on the received stimulus signal. The inner ear sensor can be configured to detect pressure, for example, within a wearer's cochlear tissue and generate an input signal based on the detected pressure. The inner ear sensor can be integrated with a cochlear electrode implanted in the cochlear tissue. Systems can include a signal processor programmed with a transfer function and configured to receive an input signal and output a stimulation signal based on the received input signal and transfer function. Systems can include an implantable battery and / or communication module in communication with the signal processor. The implantable battery and / or communication module can be configured to interface with and update the transfer function of the signal processor.

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.

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.

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.

The embodiment of the invention discloses an electrode direction recognition method, device and equipment, a medical system, a medium and a product, and the method comprises the steps: obtaining an original CT image and an X-ray plane image which comprise a target object; identifying electrode position information of a target electrode in the original CT image, and replacing a region at least comprising the target electrode in the original CT image with a corresponding electrode template according to the electrode position information to obtain a reference electrode template CT image; the target electrode is a directional electrode implanted in a target object; adjusting the electrode direction of an electrode template in the reference electrode template CT image, and obtaining CT image coronal projection images corresponding to the reference electrode template CT image in a plurality of electrode directions; and according to the similarity between the CT image coronal projection image and the X-ray plane image in each electrode direction, determining the electrode direction of the directional electrode implanted into the target object. According to the embodiment of the invention, the orientation of the implanted electrode can be automatically identified.

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 present invention discloses an electrode implantation surgical robot, comprising a control terminal and a first mechanical arm, a first end actuator, a second mechanical arm and a second end actuator connected to the control terminal; the end of the first mechanical arm is connected to the first end actuator, and the end of the second mechanical arm is connected to the second end actuator; the control terminal comprises: a positioning module for determining the target position and target depth required for electrode implantation; a first control module for moving the first end actuator to the target position driven by the first mechanical arm, drilling at the target position according to the target depth, and stopping drilling and triggering the second control module when the drilling end condition is met; a second control module for moving the second end actuator to the target position driven by the second mechanical arm, and implanting the electrode at the target position. The present invention realizes one-touch fully automatic operation and full-process aseptic operation of electrode implantation, and has high implantation accuracy.

The invention belongs to the technical field of anti-tumble devices, and discloses a tumble prevention device for sensing human joint position sensation and motion sensation based on brain-computer fusion, which comprises a brain-computer fusion sensing interface, an intelligent knee pad, a wearable system, a balance module, a support module and a control module, the signal is transmitted to sensory nerves through an electrode implanted into the brain, so that the sensory function is reconstructed; the mode of electromyographic signal detection and rigid structure supporting is adopted, the feature electromyographic signals before falling are collected, the mechanical supporting device is automatically triggered, supporting is guaranteed to be safe, detection and processing of the electromyographic signals of specific muscle groups before falling are achieved, and the safety of falling is improved. And the whole process of rigid support protection, alarm and sending positioning on the human body during falling is covered.

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.

The invention relates to an artificial cochlea electrode implant and application thereof, and belongs to the technical field of surgical medical equipment. The artificial cochlea electrode implant comprises a stimulating electrode part and a connector connected with the stimulating electrode part; the stimulating electrode part comprises a first electrode wire and a plurality of second electrode wires which are connected with the connector, an electrode array arranged at the end of the first electrode wire, and a common electrode arranged at the end of the second electrode wire; the first electrode wire and the second electrode wire are respectively wound with an insulating tape, the electrode array and the common electrode are exposed, the electrode array comprises a plurality of semi-ring electrodes which are arranged at the end of the first electrode wire side by side, and one side of the end of the first electrode wire is provided with a flexible insulating suture which transversely penetrates through the semi-ring electrodes. The artificial cochlea electrode implant can be more easily and stably implanted into the cochlea of a small rodent experimental animal, and auditory nerve response can be measured and electrical stimulation can be carried out in the state that the small rodent experimental animal is sober and freely moves.

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.

Presented herein are techniques for electrically stimulating a recipient's vestibular nerve in order to mask vestibular noise signals (vestibular noise) generated by the peripheral vestibular system (e.g., prevent erroneous balance information generated by the peripheral vestibular system from being sent to the brain of the recipient). A vestibular nerve stimulator in accordance with embodiments presented herein includes a plurality of electrodes implanted in an inner ear of a recipient at a location that is adjacent to the otolith organs of the inner ear. The vestibular nerve stimulator is configured to generate one or more continuous pulse trains and to deliver the one or more continuous pulse trains to the inferior branch of the recipient's vestibular nerve.

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 of neurostimulation includes applying a probe signal to an electrode implanted in or near a target neural structure of the brain. The method further includes detecting a first response from the target neural structure evoked by the probe signal and determining a first time period between application of the probe signal and a first temporal feature of the response. Further, the method includes generating a therapeutic signal comprising a plurality of pulses, at least two of the plurality of pulses separated by the first time period, and applying the therapeutic signal to the electrode or another electrode implanted in or near the target neural structure.

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.