Abstract: The disclosure relates to a reduced Larsen Effect electrode. Specifically, the disclosure relates to an electrode with an insulation-coated electrode wire coaxially surrounded over a substantial portion thereof, by predetermined assembly of alternating rigid and isolating layers.

Abstract: The present invention consists of an implantable device with at least one package that houses electronics that sends and receives data or signals, and optionally power, from an external system through at least one coil attached to the at least one package and processes the data, including recordings of neural activity, and delivers electrical pulses to neural tissue through at least one array of multiple electrodes that is/are attached to the at least one package. The device is adapted to electrocorticographic (ECoG) and local field potential (LFP) signals. The output signals provide control for a motor prosthesis and the inputs signals provide sensory feedback for the motor prosthesis. The invention, or components thereof, is/are intended to be installed in the head, or on or in the cranium or on the dura, or on or in the brain.

Abstract: A medical probe includes a distal end and an elongate body for insertion into an organ of a patient. The distal end is connected to the elongate body and includes multiple arms that, when inserted into the organ, extend to form multiple respective spirals each having electrodes disposed thereon.

Abstract: A garment and/or garment system with health-monitoring (e.g., cardiovascular monitoring) capability, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.

Abstract: Electrode sensor comprising an array of spaced apart individual contact elements (27?, 41), and an interface structure (30, 35) for forming contact between said contact elements and the skin; said interface structure comprising an interface layer of an essentially electrically insulating or poorly electrically conducting material (20?, 29, 37) defining a skin (31) contact surface on one side and an array contact surface on the other side of the interface layer, a first pattern of an electrically conducting material on the array contact surface, a second pattern of an electrically conducting material on the skin contact surface, and electrical pathways (21?, 39) connecting the first pattern with the second pattern; whereas, the first pattern comprises pattern elements, each individual contact element (27?, 41) comprises a contacting surface area large enough to cover several pattern elements of said first pattern when contacting the array contact surface of the interface structure, and by contacting distinct s

Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface and a first location configured to be positioned at the patient's vocal folds. A first electrode is formed on the exterior surface of the endotracheal tube substantially below the first location to receive EMG signals primarily from below the vocal folds. A second electrode is formed on the exterior surface of the endotracheal tube substantially above the first location to receive EMG signals primarily from above the vocal folds. The first and second electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient.

Abstract: An implantable biological electrode, including a wire (2), wherein two ends of the wire (2) are connected with a contact (1) and a connector (3) respectively. The contact (1) comprises a conductive non-magnetic nanofiber with a specific resistivity or a conductive film with a specific center resistivity. A medical assembly comprises the implantable biological electrode. A contact prepared by the winding of a nanofiber or film material with a relatively high resistivity can effectively suppress turbulence and improve the safety of the electrode during magnetic resonance imaging.

Abstract: A heart activity sensor structure includes a flexible textile substrate, and at least two electrodes with an electric insulation between each of the at least two electrodes. The at least two electrodes are applied on one side of the flexible textile substrate and configured to be placed against a skin of an exerciser in order to measure biosignals related to heart activity. The heart activity sensor also includes an electrostatic discharge shield applied on one side of the flexible textile substrate for protecting the at least two electrodes from static electricity.

Abstract: An electrode belt includes at least one electrode to measure biometric signals related to heart activity of a user, a non-conductive strip having at least one opening, and a flexible strip to enable placement of the electrode belt against the skin of the user. The non-conductive strip is coupled with the flexible strip such that, when in use, the at least one electrode is in physical contact with the skin of the user.

Abstract: It is recognized that, because of its unique properties, graphene can serve as an interface with biological cells that communicate by an electrical impulse, or action potential. Responding to a sensed signal can be accomplished by coupling a graphene sensor to a low power digital electronic switch that is activatable by the sensed low power electrical signals. It is further recognized that low power devices such as tunneling diodes and TFETs are suitable for use in such biological applications in conjunction with graphene sensors. While tunneling diodes can be used in diagnostic applications, TFETs, which are three-terminal devices, further permit controlling the voltage on one cell according to signals received by other cells. Thus, by the use of a biological sensor system that includes graphene nanowire sensors coupled to a TFET, charge can be redistributed among different biological cells, potentially with therapeutic effects.

Abstract: An apparatus to enable individuals to record neural activity. The apparatus is designed to be produced at a low cost and may be configured to be disposable or capable of a limited number of uses. The apparatus comprises electrodes, a flexible housing sealably enclosing an energy storage device and an integrated circuit having a memory, a processor, and on-board memory. The electrodes capture the neural activity signals. The integrated circuit samples the neural activity signals and stores corresponding data in memory.

Abstract: A system for detecting bioelectrical signals of a user comprising: a set of sensors configured to detect bioelectrical signals from the user, each sensor in the set of sensors configured to provide non-polarizable contact at the body of the user; an electronics subsystem comprising a power module configured to distribute power to the system and a signal processing module configured to receive signals from the set of sensors; a set of sensor interfaces coupling the set of sensors to the electronics subsystem and configured to facilitate noise isolation within the system; and a housing coupled to the electronics subsystem, wherein the housing facilitates coupling of the system to a head region of the user.

Abstract: An intravascular catheter for nerve activity ablation and/or sensing includes one or more needles advanced through supported guide tubes (needle guiding elements) which expand to contact the interior surface of the wall of the renal artery or other vessel of a human body allowing the needles to be advanced though the vessel wall into the extra-luminal tissue including the media, adventitia and periadvential space. The catheter also includes structures which provide radial and lateral support to the guide tubes so that the guide tubes open uniformly and maintain their position against the interior surface of the vessel wall as the sharpened needles are advanced to penetrate into the vessel wall. Electrodes near the distal ends of the needles allow sensing of nerve activity before and after attempted renal denervation. In a combination embodiment ablative energy or fluid is delivered from the needles in or near the adventitia to ablate nerves outside of the media while sparing nerves within the media.

Abstract: A catheter for use in a patient's heart, especially for mapping a tubular region of the heart, has a catheter body, a deflectable intermediate section and a distal a mapping assembly that has a generally circular portion adapted to sit on or in a tubular region of the heart. A control handle of the catheter allows for single-handed manipulation of various control mechanisms that can deflect the intermediate section and contract the mapping assembly by means of a deflection control assembly and a linear control assembly. The deflection control assembly has a deflection arm and a rocker member. The linear control assembly has a linear control member, an inner rotational member and a cam. A pair of puller members are responsive to the deflection control assembly to bi-directionally deflect the intermediate section. A third puller member is responsive to the linear control assembly to contract the generally circular portion of the mapping assembly.

Abstract: A method and system capable of identifying ectopic foci, rotors, or conduction pathways involved in reentrant arrhythmias within cardiac tissue, and then treating identified ectopic foci, rotors, and/or pathways with either lethal or sub-lethal temperatures. The system includes a medical device having one or more mapping elements and one or more treatment elements, and a computer programmable to identify ectopic foci and rotors based at least in part on signals received from the one or more mapping elements at one or more locations.

Abstract: An extended wear electrocardiography patch is provided. A flexible backing is formed of an elongated strip of stretchable spunlace material. A layer of stretchable adhesive is applied on at least a portion of a contact surface of the flexible backing, which defines a pair of openings on both ends. A non-stretchable circuit is axially affixed to an outward-facing surface of the flexible backing and has a pair of circuit traces. The flexible backing acts as a buffer between the non-stretchable circuit and the stretchable adhesive and prevents disadhesion of the flexible backing during bending. A pair of electrocardiographic electrodes are electrically coupled to each of the circuit traces. Conductive gel is provided in each of the openings and in electrical contact with the pair of electrocardiographic electrodes as the electrodes shift away from the openings in the flexible backing during the bending.

Abstract: A catheter for use in a patient's heart, especially for mapping a tubular region of the heart, has a catheter body, a deflectable intermediate section and a distal mapping assembly that has a generally circular portion adapted to sit on or in a tubular region of the heart. A control handle of the catheter allows for single-handed manipulation of various control mechanisms that can deflect the intermediate section and contract the mapping assembly by means of a deflection control assembly and a rotational control assembly. The deflection control assembly has a deflection arm and a rocker member. The rotational control assembly has an outer rotational member, an inner rotational member and a cam. A pair of puller members are responsive to the deflection control assembly to bi-directionally deflect the intermediate section. A third puller member is responsive to the rotational control assembly to contract the generally circular portion of the mapping assembly.

Abstract: A medical system may include a shaft member and a structure physically coupled to the shaft member. A portion of the shaft member may be sized to be delivered through a bodily opening leading to a bodily cavity. The structure may include at least two flexible couplings, each flexible coupling extending transversely from an intermediate portion of a respective one of at least two elongate members of the structure. The flexible coupling extending transversely from the intermediate portion of a first one of the at least two elongate members forms at least a part of a first closed loop arranged to receive a portion of the flexible coupling of a second one of the at least two elongate members therethrough to limit a spacing between the intermediate portions of the first and the second ones of the at least two elongate members.

Abstract: An electrode includes separate first and second electrical contacts to contact the skin of a subject. A charge-holding structure is electrically connected between the first and second contacts. An indicator is operatively coupled to the charge-holding structure so that the indicator changes visibly in response to a change in the charge stored in the charge-holding structure. The electrode can include a rectifier across the contacts. A container for electrodes includes an electrical supply and a plurality of receptacles for electrodes so that a voltage difference is maintained across conductors of each receptacle (and contacts of an electrode therein) for at least one week. A method of making electrodes includes arranging the contacts over a support, connecting the charge-holding structure between them, arranging the indicator over the support, and charging the charge-holding structure so that the indicator has a first visual appearance.

Abstract: A medical probe includes an insertion tube for insertion into a patient's body, and multiple arms that are attached to a distal end of the insertion tube. Each arm includes a braid of wires that traverse the arm. Multiple electrodes are coupled to the arms and electrically connected to respective selected wires of the braid. The electrodes are configured to exchange signals over the wires with a system external to the patient body.