ENDOCARDIAL IMPLANTABLE ELECTRODE Russian patent published in 2000 - IPC

FIELD: medical engineering. SUBSTANCE: device has current-conducting wire placed in the casing. The casing has silicon rubber insulation tube. Contact head with fastening member is positioned on the distal end of the electrode. Union with contact pin is positioned on the proximal end of the electrode. Mandrin is set inside of wire 1. Guiding bushing is mounted for providing easy way of mandrin introduction. To avoid axial displacement of the electrode, notched bushing is mounted on the casing. The contact head is produced from titanium having spherical rough surface as a set of micro-craters and pyramid-like protrusions of various shape of 20-50 mcm height. The contact head surfaces are produced as a result of jet treatment of surface with aluminum oxide crystals. EFFECT: increased active working surface of the contact head without enlarging diameter; retained contact reliability. 2 dwg