Abstract: A medical electrode which mechanically isolates a conductive interface between the electrode and a patient's skin from forces applied to the lead wires or a lead wire connector is described.

Abstract: The present invention is related to a sleep stage annotation system, said system having a plurality of sensors elements comprising differential electrodes, at least one sensor element comprising a ground electrode, transmitting means to transmit signals generated by the differential electrodes and the at least one ground electrode to a data recording unit, wherein) at least the sensor elements comprising the differential electrodes are arranged on a device capable of serving as a head or face support means, and methods using the same.

Abstract: Sensor designs or shapes to facilitate the placement of sensors on a patient are provided. For example, a first sensor may include a sensor body having a keyed interface region that is configured to align with a complementary keyed interface region of second sensor. Such sensors may also include various features to further facilitate the positioning of the sensors on the patient tissue and the positioning of the sensors with respect to one another. For example, the first sensor may include indicia relating to the second sensor having the complementary keyed interface region.

Abstract: The present invention provides a neural sensing device and method for making the same. The neural sensing device includes a base, an integrated circuit portion and a plurality of microprobes. The base has an active surface and a backside surface. The integrated circuit portion is disposed on the active surface of the base. The microprobes protrude from the backside surface of the base. The conductive vias are disposed in the microprobes and electrically connected to the integrated circuit portion.

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: An ablation catheter assembly includes an elongate catheter body having a proximal portion, a distal portion and a lumen therethrough. A helical structure associated with the catheter distal portion carries a plurality of independently operable electrodes and is transformable between a low-profile configuration wherein a straightening element is positioned in the lumen and an expanded configuration wherein the straightening element is at least partially retracted from the spiral structure. When the helical structure is in the expanded configuration, a laterally offset tip portion extends distally therefrom.

Abstract: Apparatus for use in performing impedance measurements on a subject. The apparatus includes a processing system for causing a first signal to be applied to the subject, determining an indication of a second signal measured across the subject, using the indication of the second signal to determine any imbalance and if an imbalance exists, determining a modified first signal in accordance with the imbalance and causing the modified first signal to be applied to the subject to thereby allow at least one impedance measurement to be performed.

Abstract: Medical devices having electrically conductive pathways are disclosed. More particularly, the disclosure is directed to catheter shafts including an electrically conductive wire embedded in a polymeric tube. The disclosure is also directed to catheter shafts including an electrically conductive media coextruded in a polymeric tube. The disclosure is also directed to catheter shafts including electrically conductive pathways formed with electrically conductive ink, paste, adhesive and/or epoxy.

Abstract: A sub-skin-depth (nanoscale metallization) thin film antenna is shown that is monolithically integrated with an array of neural recording electrodes on a flexible polymer substrate. The structure is intended for long-term biometric data and power transfer such as electrocorticographic neural recording in a wireless brain-machine interface system. The system includes a microfabricated thin-film electrode array and a loop antenna patterned in the same microfabrication process, on the same or on separate conductor layers designed to be bonded to an ultra-low power ASIC.

Abstract: The invention relates to an electrochemical sensor for the determination of a concentration of at least one analyte in a medium, in particular a body tissue and/or a body fluid, to an apparatus that includes the electrochemical sensor, and to a use of the electrochemical sensor, and finally to a method for producing it. The electrochemical sensor has an isolation element and at least two electrodes. The at least two electrodes comprise at least one working electrode and at least one further electrode, in particular at least one counter electrode and/or at least one reference electrode. The at least two electrodes run parallel to one another and form an electrochemical measuring cell of the electrochemical sensor.

Abstract: The present disclosure relates to a sensor for monitoring the depth of consciousness of a patient. The sensor includes a plurality of light sources, light detectors, and in some embodiments, electrodes. In an embodiment, the sensor includes reusable and disposable portions.

Abstract: A sensor for measuring biosignals is provided. The sensor comprises at least one electrode comprising: a substrate comprising a flexible non-conductive material; a conductive layer configured to transfer electrical signals; a gel layer configured to transfer electrical signals; and a barrier layer configured to protect the conductive layer and transfer electrical signals, wherein the barrier layer deposited on the substrate, the gel layer is deposited on the barrier layer so that the gel layer covers only a part of the barrier layer, and the conductive layer is deposited over an area of the barrier layer which is outside of an area of the barrier layer on which the gel layer is deposited.

Abstract: A Wireless Monitoring Apparatus is used in conjunction with an automated external defibrillator (AED) system for patient rescue in mass-casualty incidents. The rescuer applies the device on each patient. The wireless monitoring apparatus automatically analyzes the patient's heart rhythm and communicates with the AED system. The AED system is therefore is able to display information with regard to each patient, notifies the rescuer on actions to take and can deliver defibrillation therapy if needed.

Abstract: An improved moisture-retaining and electrically conductive structure includes a plurality of moisture-retaining and electrically conductive yarns that is woven to form a planar structure, wherein each of the moisture-retaining and electrically conductive yarns is formed by blending a plurality of electrically conductive fibers and a plurality of moisture-retaining fibers. With such a structure, fabric of the same layer can provide both functions of moisture retention and electrical conduction and may improve the lifespan and electrical conductivity.

Abstract: A method of making an electrical stimulation lead includes coupling electrodes to a carrier. The carrier defines at least one set of perforations. The method further includes coupling the electrodes to conductors; forming a flexible paddle sheath over the carrier leaving a stimulation surface of each of the plurality of electrodes exposed; and, after forming the flexible paddle sheath, breaking the carrier along at least one of the at least one set of perforations.

Abstract: An electrode patch monitoring device that enables fast and accurate application is described. According to some embodiments, the electrode patch monitoring device comprises an array of electrodes for monitoring bioelectrical data that are formed on a flexible substrate. The electrode patch monitoring device may be available in a plurality of sizes, and various methods are provided for selecting an appropriate size according to the physiology of a patient. Methods for applying the electrode patch monitoring device to the patient's body are also provided.

Abstract: A method for sensing multiple local electric voltages from endocardial surface of a heart, includes: providing a system for sensing multiple local electric voltages from endocardial surface of a heart, including: a first elongate tubular member having a lumen, a proximal end and a distal end; a basket assembly including: a plurality of flexible splines for guiding a plurality of exposed electrodes, the splines having proximal portions, distal portions and medial portions therein between, wherein the electrodes are substantially flat electrodes and are substantially unidirectionally oriented towards a direction outside of the basket.

Abstract: A contoured bioelectrical signal electrode and a sensor headset are disclosed. A contoured bioelectrical signal electrode that also includes a conductive fabric is also disclosed. In some embodiments, a contoured bioelectrical signal sensor is provided that includes an electrode set and is connected to a holder that is connected to a headset.

Abstract: A bio-electrode device, bio-measurement device, and a method for implementing a bio-electrode device are provided. Information, such as usage information or patient information, may be maintained in a bio-electrode device, and the information maintained may be transferred to a bio-measurement device in response to the bio-electrode device being coupled to the bio-measurement device.

Abstract: The present invention relates to a physiological recording electrode, and, more particularly, to an EEG (electroencephalography) recording electrode that can be used without the need for numerous steps in preparing the subject's skin and the electrode itself. The invention further relates to a surface feature or penetrator with a size and shape which that will not bend or break, which limits the depth of application, and/or anchors the electrode or other device during normal application; and a packaging system comprising a well and electrolytic fluid for maintaining a coating of said electrolytic fluid on the surface feature or penetrator.

Abstract: A lead assembly includes a ring component having mechanical coupling features, and at least one polymer component mechanically coupled with the mechanical coupling features of the ring component. Elongate tubing is disposed over the polymer component and is secured with the polymer component.

Abstract: The present invention provides a handy remote physiological signal detection system, comprising a sensing unit, a stimulation unit and a control unit. The sensing unit includes a detecting electrode, a first surface detection electrode, a second surface detection electrode and a sensing module. The sensing modules is used to detect the signals between the detection electrode and the first surface detection electrode to get an epicardial detection signal, and is also used to detect the signals between the second surface detection electrode and the first detection electrode to get a surface-ECG signal. The stimulus unit includes a stimulating electrode and a stimulus module used to provide a stimulus signal to the stimulating electrode. The control unit includes a user interface and a processing module used to convert the epicardial detection signal and the surface-ECG signal to digital signals and display the digital signals in the user interface.

Abstract: An instrument 10 for delivering a high voltage pulse to tissue is disclosed. The instrument 10 can include an outer support member 12 with a liquid reservoir 14 that has a liquid-contacting interior surface 16, an opening 18 at a distal end 20 of the outer support member 12, and a ground electrode 22 extending in a longitudinal direction and having a lower surface 23 proximate the opening 18. The instrument 10 can also include a working electrode 26 extending longitudinally from the liquid-contacting interior surface 16 with a needle-shaped distal portion 28 proximate the distal end 20; and an inlet port 31 and an outlet port 34 in liquid communication with the liquid reservoir 14. The working electrode 26 can be electrically isolated from the ground electrode 22 by an insulating portion 30 of the outer support member 12, and a direct path can exist through the liquid reservoir 14 between the ground electrode 22 and the working electrode 26.

Abstract: Electrical apparatus includes a probe, having a proximal end and a distal end. The probe includes a sensor, which outputs a sensor signal, and a first connector at the proximal end of the probe, electrically coupled at least to the sensor. A probe adapter includes a second connector, which is arranged to mate with the first connector, and a third connector, for coupling to a console. A shield includes a material of high magnetic permeability, which is configured to enclose an internal volume containing the first and second connectors when the probe is connected to the probe adapter.

Abstract: A system for medical diagnosis, monitoring, and treatment is described, including a medical band comprising one or more sensors configured to gather data associated with at least one symptom of a medical condition and a communications facility configured to communicate with another device, a memory configured to store the data, a notification facility configured to provide a notification, and an application implemented on the another device, the application configured to determine the medical condition using the data and to provide an instruction to the medical band. The notifications may be alarms, may be designed to prompt movement, or may be associated with a drug regimen.

Abstract: The electrode structure for measuring a bio-signal and an apparatus for measuring an electrocardiogram using the same are disclosed. The electrode structure for measuring a bio-signal, comprises an electrode pad to measure bio-signals based on capacitive coupling between the electrode pad and human skin; an absorption layer formed at one side of the electrode pad; and a preamplifier which is electrically connected with the electrode pad and filters noise from the bio-signals from the electrode pad and amplifies and outputs the signals. Thus, the initial noise stabilization time can be reduced, and stable electrocardiogram signals can be obtained quickly without noises.

Abstract: The present invention relates to electrocardiography and to electrode arrangements used in electrocardiographic monitoring devices, and is more particularly related to a pad or patch containing said electrodes which may be used to passively and non-invasively monitor electrical activity generated by a patient's heart from the surface of that patient's chest, and to a connector which allows for fast and simple connection between the pad containing said electrodes and the devices and equipment typically used to monitor and view electrocardiographic information.

Abstract: A biomedical sensor system is disclosed that includes a plurality of electrodes and a contiguous adhesive material that is in contact with each of the plurality of electrodes. In certain embodiments a method is provided that includes the step of applying a first surface of adhesive material to a patient wherein the adhesive material includes at least two electrodes on second surface thereof that is opposite the first surface. The method also includes the step of receiving a time varying signal a first electrode of the at least two electrodes at a first location such that the time varying signal is not received at a second electrode of the at least two electrodes.

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 biomedical sensor system is disclosed that includes a high impedance conductive electrode having an electrode impedance of at least about 20 k?/sq-mil, and a dielectric material on a first side of the electrode for receiving a discharge of an electrical signal from the dielectric material responsive to the presence of a time varying signal adjacent a second side of the dielectric material that is opposite the first side.

Abstract: The present invention is directed to an apparatus that includes a microcurrent delivery device portion and at least one independent sensory cue delivery means. The independent sensory cue delivery means can provide an independent sensory cue selected from the group consisting of vibration, heat, cool, skin irritation, tingling, fragrance or auditory.

Abstract: A system and method are provided for securing an ingestible electronic device to a pharmaceutical product without damaging the ingestible electronic device. The product includes the ingestible electronic device being placed on the product in accordance with one aspect of the present invention. In accordance with another aspect of the present invention, the ingestible electronic device is placed inside the product. Various embodiments are disclosed in accordance with the present invention for protecting and/or coating of the electronic marker as well as securing the ingestible electronic device onto the product.

Abstract: A device for stimulating nerves adjacent the vagina includes a nerve stimulating element coupled to a body. The nerve stimulating element is positioned to stimulate the vesical, Frankenhauser's and/or inferior hypogastric plexuses. The device may reside in the vaginal fornices.

Abstract: A method of monitoring pulmonary oedema in a subject using a processing system. The method includes, determining a measured impedance value for at least two body segments, at least one of the body segments being a thoracic cavity segment. For each body segment, the measured impedance values are used to determine an index, which is in turn used to determine the presence, absence or degree of pulmonary oedema using the determined indices.

Abstract: There is disclosed a method of forming a patterned conductive element for an implantable medical device, the method comprising the steps of: depositing a supplementary material on a sheet of conductive, parent material to form a sheet of composite material; applying a carrier material over the supplementary material of the composite sheet to form a sheet of semi-finished material; removing portions from at least the conductive parent material of the sheet of semi-finished material in accordance with a desired pattern corresponding to a patterned conductive element to be formed; and releasing at least the carrier material from the sheet of semi-finished material.

Abstract: The invention relates to a medical electrode (1) comprising an electrode head (2) and an electric feed line (3) to the electrode head (2), said teed line (3) having an electrically conductive shielding layer (4), a dielectric element (5), and an electric conductor (6). The feed line (3) has an elongate substrate element (7) onto which the electrically conductive shielding layer (4) is at least partly printed. The at least partly printed shielding layer (4) entirely surrounds the dielectric element (5) and the electric conductor (6) transversely to the longitudinal axis (L) of the feed line (3). The shielding layer comprises an upper (4a) and a lower (4b) shielding ply.

Abstract: A method for providing high voltage circuit protection for a patient monitor. The method includes providing a substrate that supports one or more electrical connections to a patient's body. The method further includes determining a print pattern and thickness of a first material having a first resistivity to be printed on the substrate, determining a print pattern and thickness of a second material having a second resistivity to be printed on the substrate, printing the first material onto the substrate, and printing the second material onto the substrate wherein at least part of the second the material overlays the first material.

Abstract: An embodiment of the invention provides a neural probe containing a plurality of nanoscale recording electrodes. The recording electrodes have a width of 1 micron or less and a distance between adjacent recording electrodes is 10 microns or less. Another embodiment of the invention provides a neural probe comprising a plurality of microfabricated recording electrodes located on a polymer base material, such as a flexible polymer cantilever.

Abstract: A novel wearable electronic skin patch sensor device configured for the real time acquisition, processing and communicating of cardiac activity and other types of biological information within a wired or wireless network is disclosed. A system level scheme for networking the sensor device with client devices that include intelligent personal health management appliances, cellular telephones, PDAs, portable computers, personal computers, RFID Tags and servers is disclosed. The sensor device and the system enable distributed processing, archival and correlation of the biological information with biometrics, gastronomic information, user profiles and health factors that include height, weight, blood pressure and physical activity facilitating real time personal health management at any time and any place.

Abstract: Disclosed are methods and devices for simultaneous recordings of neuronal electrical activity and their immediate chemical environment on subsecond timescales. Due to its sub-300 micron size, the device can be used in chronic recordings in higher mammals (particularly primates) with minimal resulting tissue damage, allowing studies of the relationship between brain chemistry, neuronal activity and behavior in complex tasks as they evolve over time.

Abstract: In an example, configuring an implantable medical device by determining port usage can include, receiving a port data object, determining a lead configuration, configuring access to a programmable parameter, and displaying a visual indication of the lead configuration. The port data object can be received from the implantable medical device and can include data associated with a port of the implantable medical device capable of connecting to a lead. The determining a lead configuration can be based on the port data object. The configuring access to a programmable parameter can be based on the lead configuration of the implantable medical device.

Abstract: An electrophysiology catheter includes an elongate catheter body having an elastically-deformable distal region predisposed to assume a spiral shape and a first plurality of electrodes disposed thereon. Each of the first plurality of electrodes includes an electrically active region limited to the inner surface of the spiral shape for use in non-contact electrophysiology studies. A second plurality of electrodes may also be disposed on the distal region interspersed (e.g., alternating) with the first plurality of electrodes, with each of the second plurality of electrodes having an electrically active region extending into the outer surface of the spiral shape for use in contact electrophysiology studies. The distal region may be deformed into a straight configuration for insertion into and navigation through the patient's vasculature, for example via use of a tubular introducer. As the distal region deploys beyond the distal end of the introducer, it resumes the spiral shape.

Abstract: An apparatus, consisting of a rolling element, which is resting on a surface, and a force-sensing device, which is coupled to the surface. The force-sensing device is configured to make a first measurement indicative of a force exerted in a direction perpendicular to the surface. The force is exerted by a force-sensing probe pressing against the rolling element so as to hold the rolling element stationary. The apparatus further includes a calibration processor, which is configured to collect the first measurement from the sensing device, to collect a second measurement indicative of the force from the force-sensing probe, and to calibrate the force-sensing probe based on the first and second measurements.

Abstract: The present invention provides for safe and reliable electronic circuitry that can be employed in ingestible compositions. The ingestible circuitry of the invention includes a solid support; a conductive element; and an electronic component. Each of the support, conductive element and electronic component are fabricated from an ingestible material. The ingestible circuitry finds use in a variety of different applications, including as components of ingestible identifiers, such as may be found in ingestible event markers, e.g., pharma-informatics enabled pharmaceutical compositions.

Abstract: The invention relates to a steering wheel for a vehicle can include a sensor assembly mounted in the steering wheel. The sensor assembly can include an electrode configured to measure a biological parameter of a driver of the vehicle. In invention further relates to a sensor assembly for a steering wheel. The sensor assembly can include an electrode configured to measure a biological parameter of a driver of the vehicle. The sensor assembly can be configured to be mounted in the steering wheel.

Abstract: A biomedical sensor is provided. The biomedical sensor comprises a printed bio-potential electrode on the biomedical sheet sensor configured to provide an electrical contact with a surface to be measured, and a bi-stable printed electronic ink indicator provided on the biomedical sheet sensor and configured to indicate a loose contact of a bio-potential electrode operation by switching the color of the bi-stable indicator from a first color to a second color when a loose contact is detected.

Abstract: Novel methods and apparatus for diagnosing or screening disease states in living organisms by the measurement and analysis of extremely low frequency electromagnetic fields, particularly extremely low frequency alternating current. The measurement of such fields is performed at a single point or at several test points on or in the body and compared to one or more reference. Information in the time-varying electromagnetic field is collected, then processed by diagnostic or screening algorithms to provide information about the disease state of the tissue being assessed.

Abstract: Disclosed herein is a biosignal detecting electrode which includes a rotary part which is rotatably attached on a brace mountable on a living body and has a first side that joins to the brace and a second side opposite to the first side, and a plurality of electrode terminals attached to the rotary part in such a way that they obliquely project from the second side of the rotary part.

Abstract: A cochlear implant implementing a directional sound processing system is provided. Specifically, the cochlear implants implementing the present invention comprise a plurality of audio sensors arranged in at least one external component of the cochlear implant to spatially receive ambient sound. At least one audio sensor is located in one of the external components of the cochlear implant, while one other audio sensor is located elsewhere, such as in a component other than the first component. The cochlear implant includes an directional sound processor comprising an array processor and a sound processor to convert the received sounds into a cochlea stimulation instruction signal.

Abstract: A picafina device for electrical stimulation and electrical measurements of neural and muscular cells, which is capable of electrical measurements of cells in the neighborhood of the picafina device and also of electrical stimulation at different voltages and current levels.