Abstract: Example headsets and electrodes are described herein. Example electrode units described herein include a housing defining a cavity, conductive paste disposed on an inner wall of the cavity and an electrode disposed in the cavity and spaced apart from the inner wall of the cavity. The electrode extends from the cavity, and the conductive paste is to shield the electrode from noise.

Abstract: In some embodiments, the PC-HEMT based microelectronic sensors are used in cardiovascular and pulmonary monitoring, detection and measurements of electrocardiography signals, detection of the primary heart activity signals and measurements of the central venous pressure and heart rate variability, measurements of the right and left atrium pressures, recording a phonocardiogram, detection of the S2-split phenomena, measurements of breath dynamics and lung activity diagnostics, monitoring the brain activity and measuring and monitoring electrical signals associated with an electroencephalogram, and eye pressure diagnostics.

Abstract: A system and method for providing a flexible electrocardiogram (ECG) pad structure have been disclosed. In a first aspect, the system is the flexible ECG pad structure and comprises a copper layer and a paste trace layer coupled to the copper layer via a cover. In a second aspect, the method comprises providing a copper layer and coupling a paste trace layer to the copper layer via a cover.

Abstract: In some embodiments, the PC-HEMT based microelectronic sensors are used in recording physiological and non-physiological sounds as hypersensitive microphones. Recording the physiological sounds is associated with the S1/S2 heart split phenomena and phonocardiography.

Abstract: In some embodiments, an open-gate pseudo-conductive high-electron mobility transistor (PC-HEMT) includes a multilayer hetero-junction structure made of III-V single-crystalline or polycrystalline semiconductor materials. This structure includes at least one buffer layer and a barrier layer, and is deposited on a substrate layer. The PC-HEMT further includes a two-dimensional electron gas (2DEG) or two-dimensional hole gas (2DHG) conducting channel formed at the interface between the buffer layer and the barrier layer, source and drain contacts, either ohmic or non-ohmic, connected to the 2DEG or 2DHG conducting channel, electrical metallizations for connecting the PC-HEMT to an electric circuit, and an open gate area between the source and drain contacts.

Abstract: Described embodiments include an apparatus that includes an expandable structure, configured for insertion into a body of a subject, and a plurality of conducting elements coupled to the expandable structure. Each of the conducting elements comprises a respective coil and has an insulated portion that is electrically insulated from tissue of the subject, and an uninsulated portion configured to exchange signals with the tissue, while in contact with the tissue. Other embodiments are also described.

Abstract: A connection device for a deflectable medical device, such as a catheter, comprises an elongate planarity wire having a proximal end and a distal end, an elongate activation wire having a proximal end a distal end, a passage and an interface. The passage extends through the planarity wire near the distal end of the planarity wire. The distal end of the activation wire extends through the passage. The interface is between the passage and the activation wire, and may comprise one or more of the following: a hook and bore interface, a detent interface, a mechanical interface, or a metallurgical interface.

Abstract: The invention concerns a multi-electrode patch for abdominal electrophysiological detection. The patch has a flexible substrate interconnecting multiple electrodes and a module unit for removably engaging with an electronic readout device for detecting a maternal and/or fetal electrophysiological signal from the electrodes. The module has a mechanical module unit for removable mechanical engagement with a housing of the readout device, and an electrical module unit for making an electrical connection from the electrodes to the readout device. Engaging the patch with the readout device comprises engaging both the mechanical module unit and the electrical module unit. The patch may be flexible in a manner that allows variation in the relative positioning between the electrodes. The patch and/or electronic readout device may comprise a security device for communication of an authentication code.

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 battery operated device and method of removing a battery therefrom are described. The battery operated device includes a battery compartment, a battery in the battery compartment, and an electric component powered by the battery. The battery compartment is mounted on a deformable base and includes a top surface which is adapted to be ruptured by deforming the deformable base, thereby enabling removal of the battery from the battery compartment. The method of removing a battery from a battery compartment of a battery operated device includes rupturing a top surface of the battery compartment by deforming a deformable base of the battery compartment, and removing the battery from the battery compartment.

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: The invention includes conductive polymeric coatings, medical device, coating solutions and methods of making the same. A coating solution for forming a conductive polymer layer can include a conductive monomer, at least one photoreactive component comprising an anionic photoreactive cross-linking agent or an anionic photoreactive hydrophilic polymer, and a solvent. A medical device can include an electrode and an electrically conductive coating disposed over the electrode. The electrically conductive coating can include a reaction product of the conductive monomer and the at least one photoreactive component. Other aspects are included herein.

Abstract: Disclosed are an electronic device and method for controlling the same. According to the present invention, an electronic device and method for controlling the same include a body, a plurality of electrodes exposed to a surface of the body to contact at least two portions of a user's body, and a controller configured to apply a current to at least any one of the plurality of electrodes to obtain a bio signal of the user. According to the present invention, the user's bio signal may be obtained.

Abstract: A catheter includes a proximal shaft and a distal shaft having differing diameters; often, the distal shaft will have a smaller diameter than the proximal shaft. A coupling joins the distal shaft to the proximal shaft. For example, a proximal portion of the distal shaft can be inserted into the coupling through its distal end, while the proximal portion of the coupling can be inserted into the proximal shaft through its distal end. To provide an atraumatic transition from the distal shaft to the proximal shaft, coupling can taper towards its distal end, for example by using a dome- or frustoconical-shape for the distal portion of the coupling. The exterior of the coupling can be ribbed to facilitate bonding to the proximal shaft. The distal shaft can be formed into at least a partial loop having a fixed or variable radius of curvature.

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: Described herein is a biometric sensor package. In particular, a biometric sensor package for integration with a garment. Furthermore, methods of manufacturing of such biometric sensor packages are disclosed. Still yet, methods of integrating biometric sensor packages in to garments are disclosed. The biometric sensor packages described herein can easily be manufactured by current biometric sensor manufactures, for example heart rate monitor belt manufacturers. The biometric sensor packages described here can then be easily integrated in to garments by current garment manufacturers without requiring any special knowledge or tooling relating to the actual biometric sensor arrangements within the biometric sensor packages. Through the use of biometric sensor packages described herein biometric sensor arrangements, such as heart rate monitors and EEG sensors can be easily integrated into garments, such as sports bras, shirts and shorts, without disrupting existing supply chains and factories.

Abstract: Disclosed is a coupling for use in a looped medical device, such as a loop catheter. A sleeve is fitted onto a distal portion of an activation wire and a shape-memory wire is positioned alongside the sleeved activation wire. The sleeve is welded onto the activation wire to hold the sleeve onto the activation wire and is also welded onto the shape-memory wire that is positioned alongside the activation wire, thereby affixing the activation wire to the shape-memory wire. Also disclosed is an activation wire for use in a catheter. The activation wire includes a proximal section, and a distal section having at least a partial loop. The activation wire includes a connection section on the distal section, where the connection section is linear, and where the external surface of the connection section has a higher coefficient of friction than at least some of the remaining portion of the actuation wire that is housed within the catheter shaft.

Abstract: An intravascular catheter for peri-vascular nerve activity sensing or measurement includes multiple needles advanced through supported guide tubes (needle guiding elements) which expand with open ends around a central axis 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 perivascular space. The system also may include means to limit and/or adjust the depth of penetration of the needles. 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.

Abstract: A wound sensor comprising at least one electrode (10a, 10b) and a non-adherent porous layer (25) proximate at least part of the electrode.

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.