Patent ID: 6134459
Filing Date: 2000-10-17
Classification: A61B,A61N

Abstract:
A body implantable medical electrical lead adapted to be implanted in a living body in operative relation with oxygenated body fluid, comprising:(a) a lead body having proximal and distal ends and comprising an electrically insulative material;(b) at least first and second electrical conductors disposed within at least portions of the lead body, the conductors having at least portions of the electrically insulative material disposed therebetween;(c) an oxygen sensor attached to the lead body and coupled electrically with said first and second electrical conductors, comprising:(i) a housing having proximal and distal ends, an exterior, and first and second interior portions disposed therewithin;(ii) a light emitter disposed within the first interior portion of the housing;(iii) a light detector disposed within the second interior portion of the housing;(iv) at least one light transmissive lens disposed over the light emitter and mounted in the elongated housing between the exterior and the light detector, the at least one lens being mounted in the housing between the exterior and the first and second interior portions; and(v) a light focusing device positioned in one of the at least one lens and the second interior portion of the housing, the light focusing device gathering light transmitted into the second portion through the at least one lens and guiding the light so gathered to the light detector for detection thereby.