Patent ID: 8662082

Claim:
A sterile drape for a trackable medical device having at least one trackable marker spatially trackable by a medical tracking system, comprising a draping portion for draping over the trackable medical device; a reinforced film portion having a first portion and a second portion, at least the second portion having a viewing surface configured to view therethrough the at least one trackable marker, the reinforced film portion transparent to electromagnetic radiation in at least one of the visible or infrared spectrum, and the reinforced film portion more resistant to folding than the draping portion; and a holding or tensing device formed in or on the first portion of the reinforced film portion and operative to draw the reinforced film portion taut or smooth on or over a surface of the medical device to enable the medical tracking system to optically track the at least one trackable marker, wherein said holding or tensing device does not impede transmission of electromagnetic radiation through the viewing surface of the second portion when the electromagnetic radiation emitted or reflected by the at least one trackable marker is normal to the viewing surface, wherein the reinforced film portion is shaped so as to maintain a smooth surface.