Apparatus for imaging during surgical procedures includes an operating room for the surgical procedure and an MRI for obtaining images periodically through the surgical procedure by moving the magnet up to the table. The magnet wire is formed of a superconducting material such as magnesium di-boride or Niobium-Titanium which is cooled by a vacuum cryocooling system to superconductivity without use of liquid helium. The magnet weighs less than 1 to 2 tonne and has a floor area in the range 15 to 35 sq feet so that it can be carried on the floor by a support system having an air cushion covering the base area of the magnet having side skirts so as to spread the weight over the entire base area. The magnet remains in the room during surgery and is powered off to turn off the magnetic field when in the second position remote from the table.

A plug for an electromagnetic field channel. The plug may have a tubular body capped at one end. The body may be composed of a plurality of coaxial layers, including electromagnetically inert outermost and innermost layers. A MU-metallic second layer may be wrapped by the outermost electromagnetically inert layer, and a copper third layer may be wrapped by the innermost electromagnetically inert layer. An air gap may be disposed between the second and third layers.

A device for shielding electromagnetic fields is provided. The device embodies a helmet having layers of a nickel-iron ferromagnetic alloy, a copper mesh, and an air gap; at least one channel extending radially from the helmet; at least one plug configured to removably fit into respective channels wherein each plug is operative shielding electromagnetic fields by way of the channel; and at least one sensor incorporated into the helmet.

A body worn patient monitoring device includes a flexible substrate having a plurality of electrical connections adapted to be coupled to a skin surface to measure physiological signals. The flexible substrate is adapted to be directly and non-permanently affixed to a skin surface of a patient and configured for single patient use. A communication-computation module, removably attached to an upper surface of the flexible substrate, is configured to receive physiological signals from the flexible substrate and includes a microprocessor that is configured to process and analyze the physiological signals. A series of resistive traces screened onto the flexible substrate are configured as at least one series current-limiting resistor to protect the communication-computation module.

According to certain described aspects, multiple acoustic sensing elements are employed in a variety of beneficial ways to provide improved physiological monitoring, among other advantages. In various embodiments, sensing elements can be advantageously employed in a single sensor package, in multiple sensor packages, and at a variety of other strategic locations in the monitoring environment. According to other aspects, to compensate for skin elasticity and attachment variability, an acoustic sensor support is provided that includes one or more pressure equalization pathways. The pathways can provide an air-flow channel from the cavity defined by the sensing elements and frame to the ambient air pressure.

Systems, devices, and techniques are disclosed for forming an elongate lead body module of a modular lead. The method may comprise rotating a mandrel, wherein the mandrel extends through a through-hole of a conductor hub, wherein each conductor of a plurality of conductors extend through a respective channel of a plurality of channels of the conductor hub, wherein each conductor of the plurality of conductors extends from a respective bobbin of plurality of bobbins to the channels, wherein the plurality of bobbins are coupled to a carriage, the carriage defining a central opening through which the mandrel passes. The method may comprise moving the carriage away from the conductor hub along a length of the mandrel while the mandrel rotates causing the conductors to coil around the mandrel.

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.

A wearable device includes at least one attachment member and an electrodermal activity (EDA) sensor comprising an integrated electrode pair physically coupled to the at least one attachment member. The electrodermal activity sensor is configured to provide an EDA signal in response to contact between the integrated electrode pair and a skin surface of a user. The integrated electrode pair includes at least two concentric electrodes radially separated by at least one insulator. Each of the at least two concentric electrodes includes an upper surface configured to contact the skin surface of the user in order to generate the EDA signal.

Provided is a physiological information detection sensor capable of implementing miniaturization by substantially securing a creepage distance and an air distance (e.g., implementing defibrillation protection). The physiological information detection sensor includes: a plurality of first substrates arranged in multiple tiers; a second substrate; a first connecting portion that electrically connects adjacent first substrates to each other among the plurality of first substrates; and an insulating member. Each of the plurality of first substrates has a defibrillation protection resistor mounted thereon and electrically connected to a physiological information detection unit. The second substrate has a circuit mounted thereon to process physiological information input from the physiological information detection unit via the defibrillation protection resistor. The insulating member is disposed between adjacent first substrates among the plurality of first substrates.

A sleep monitor includes a layered sensor that includes at least one substrate layer that includes multiple laterally adjacent substrates. The substrate layer may be formed by interdigitating fingers of a first sheet with fingers of a second sheet. Combining multiple substrates in a single layer of a layered sensor may allow multiple materials and/or sensing mechanisms to be combined together in a single layer.