14 results about "Implantable Electrodes" patented technology

The application provides a connector, an implantable electrode member using the connector, an electrode assembly, an implantable device and a preparation method thereof. The connector is used for connecting with an implantable electrode member and comprises an insulating body and a conductive terminal connected with the insulating body. The conductive terminal extends along a first direction and is connected with the insulating body, so that the electrode member can be connected with the conductive terminal in a vertical type along a second direction, and the first direction is different from the second direction. The connector, the implantable electrode member using the connector, the electrode assembly, the implantable device and the preparation method thereof can effectively improve circuit stability and prolong the service life of the electrode.

This utility model relates to the field of medical devices, and more particularly to an MRI-compatible implantable electrode lead and implantable medical device. The implantable electrode lead includes: a conductive core, which may be single-core or multi-core; an insulating layer covering the conductive core; and a shielding layer covering or embedded within the insulating layer. The shielding layer has a mesh structure and is braided from conductive wires with curved sections. This utility model provides a mesh shielding layer made of a biocompatible, electrically conductive material outside the implantable electrode lead. This shielding layer can shield magnetic fields to prevent the internally protected conductive core from overheating, thereby ensuring the safety of the implantable electrode lead during MRI scanning. Furthermore, the shielding layer has a certain degree of elasticity to accommodate the elastic conductor core.

Presented herein is an electroporation shield configured to be removably coupled to an implantable stimulating assembly that includes one or more stimulation electrodes. The electroporation shield is coupled to stimulating assembly such that the electroporation shield electrically insulates the one or more of the stimulation electrodes from an electroporation electrical field generated by one or more electroporation electrodes coupled to the electroporation shield. The electroporation shield may be coupled to the stimulating assembly in a manner that facilitates removal of the electroporation shield and the one or more electroporation electrodes. After electroporation, without having to remove or reinsert the stimulating assembly, thereby exposing the one or more stimulation electrodes to the cells of the recipient for subsequent delivery of stimulation.

A method of controlling an implanted electrode includes receiving information from an external device; calculating a first region in a body in which the electrode is to be implanted and a second region in which electrode implantation is prohibited, based on the received information; and calculating a plurality of predicted paths through which an electrode is moved based on the first region or the second region, and outputting the plurality of predicted paths.

Implantable electrode assemblies, including implantable electrode assemblies for the brain, and associated systems, devices and methods are disclosed herein. In one embodiment, an electrode shank comprises (i) a plurality of electrodes and (ii) a body extending between a proximal end region and a distal end region opposite the proximal end region. The body can include a plurality of non-conductive layers arranged in a stack. The body can further include a plurality of conductive traces formed on each of the plurality of non-conductive layers. The plurality of electrodes can be disposed on the body, and each of the plurality of conductive traces can extend from the proximal end region to a corresponding one of the plurality of electrodes.

This invention discloses an electromagnetic modulation method for improving the formation of glial scars around implanted electrodes. The method selects at least two electrode channels in an implanted brain-computer interface electrode array as stimulation channels and connects them to an external stimulation driving circuit. By outputting a charge-balanced low-frequency pulse stimulation current, it implements staged modulation of the local tissue around the electrodes at different stages after implantation. Simultaneously, it continuously monitors the electrode-tissue interface impedance and / or the signal-to-noise ratio of neural signals, and performs closed-loop switching between different stimulation parameters based on the monitoring results. This method is drug-free and can utilize bipolar or tripolar current-guided stimulation configurations to regulate the spatial distribution of the local electric field. Combined with the accompanying near-field electromagnetic effect, it provides electromagnetic parameter-dependent long-term modulation of the inflammatory response of microglia and astrocytes at the implantation interface, thereby improving the long-term electrical stability of the implantation interface and extending the lifespan of the implanted electrodes.

An electrical device for stimulating and / or monitoring a patient's eye is disclosed, comprising an implantable electrode device and a lead extending outwardly from the implantable device, the lead including a segment located outside the eye with at least one pre-formed bend. A lead connected to the implantable electrode device is also disclosed, the lead having one or more strips extending along at least a portion of the lead. An implantable device having a substrate and at least one electrode having at least one hole, the material of the substrate extending through the at least one hole to anchor the electrode to the substrate is also disclosed. Other disclosed features relate to, for example, foldable anchoring devices, flexible electrode substrates, and depth markers.

This invention relates to the field of medical devices, specifically to an MRI-compatible implantable electrode and its manufacturing method. A base layer and a shielding mesh are disposed on the outer periphery of the catheter. The shielding mesh is formed by patterning a metal layer and is thinner than existing braided shielding sleeves. Along the axial direction of the catheter, the elastic modulus of the shielding mesh is less than that of the base layer, and the elastic limit elongation of the shielding mesh is greater than that of the base layer. The shielding mesh is more flexible than the base layer and can withstand greater stretching and bending. The base layer protects the shielding mesh from external forces, making it less prone to breakage. The elastic modulus of the base layer is less than that of the catheter. Overall, the shielding layer has greater ductility than the catheter, and is more elastic than the catheter.

This invention discloses a multi-channel closed-loop neuromodulation system based on bioelectrical signals, comprising: an implantable device, implanted in the target body, carrying all implantable end functions, including: bioelectrical signal acquisition, multi-channel constant current electrical stimulation output, master control decision and power management; a host computer, deployed outside the body, carrying the reception and processing of physiological feedback signals, closed-loop decision algorithm calculation and stimulation control command generation, and bidirectional data interaction with the implantable device via a wireless communication link; a charging power transmitter, transmitting energy to the implantable device wirelessly via near-field electromagnetic coupling to achieve non-contact charging of the implantable device; and implantable electrodes, implanted in the target nerve / muscle tissue, used to acquire bioelectrical signals generated by the nerve / muscle tissue and transmit them to the implantable device, and output electrical stimulation to the target nerve / muscle tissue under the drive of the multi-channel constant current electrical stimulation output of the implantable device.

A therapy system includes an implantable medical device including one or more implantable electrodes (40, 42, 48, 50, 94), and a computing apparatus (24) including processing circuitry and operably coupled to the one or more implantable electrodes (40, 42, 48, 50, 94). The one or more implantable electrodes (40, 42, 48, 50, 94) include a left bundle branch (LBB) electrode positionable adjacent a portion of a patient's LBB, and a right bundle branch (RBB) electrode positionable adjacent a portion of the patient's RBB. The computing apparatus (24) is configured to monitor electrical activity using the LBB and RBB electrodes, detect electrical activity based on the monitored electrical activity indicative of left ventricle (LV) depolarization and indicative of right ventricle (RV) depolarization, determine a temporal difference based on the detected electrical activity indicative of LV depolarization and the detected electrical activity indicative of RV depolarization, and determine whether there is a cardiac physiological condition based on the determined difference.

A method includes receiving a measurement set comprising a plurality of measurement values generated using a plurality of electrodes distributed along an elongate structure configured to be implanted in and / or on a body portion of a recipient. The measurement set is indicative of a pose of the elongate structure relative to the body portion. The method further includes generating, in response at least in part to the measurement set, a gradient vector dataset comprising a plurality of gradient vector phase values. The method further includes generating, in response at least in part to the gradient vector dataset, an evaluation of the pose of the elongate structure relative to the body portion.

This article discusses a neurostimulation device for monitoring electrical neural activity when connected to an implantable electrode. The neurostimulation device includes sensing circuitry and signal processing circuitry. The sensing circuitry is configured to sense a patient's local field potential (LFP) signal when connected to the implantable electrode, and the signal processing circuitry is operatively coupled to the sensing circuitry. The signal processing circuitry is configured to calculate the power spectral density (PSD) of the sensed LFP signal, calculate the slope of the PSD of the sensed LFP signal, and use the calculated slope of the PSD of the sensed LFP signal to determine the patient's physiological state.