Abstract: A printed circuit biopotential sensing device is provided which is particularly adapted for endocardial or other deep body applications. The device has a predetermined printed circuit pattern formed on a thin film substrate, the pattern having at least one electrode pad at its distal end, at least one terminal pad at the proximal end, and conductor means selectively interconnecting the electrode pads and terminal pads. The substrate is secured to, and is preferably wrapped around an elongated member which is preferably tube-shaped in a manner such that the electrodes are exposed at the distal end of the member, and the terminal pads at the proximal end of the substrate are utilized in forming a suitable connector from the device.

Abstract: Footwear adapted to be inserted within a sneaker or the like, preferably between the sneaker and a conventional sock. The footwear is made of a flexible, light, waterproof material which is breathable so that although moisture cannot enter the inside thereof, vapor can pass therethrough in order to afford a high degree of comfort to the wearer. The insert type footwear is constructed from a single-piece pattern which is seamed in a manner such that none of the seams run adjacent to the sole or heel region of the foot.