Patent ID: 7464602
Filing Date: 2008-12-16
Classification: A61B

Abstract:
1. An implantable pressure sensor, comprising: a pressure transducer with a mechanical sensing input and an electrical output that provides an indication of a sensed pressure level; and an elongate pressure transmission catheter comprising an outer covering that forms an inner cavity, and a pressure transmission substance contained within the inner cavity; wherein at least a portion of the outer covering is formed to have a cross-sectional shape that is a partially flattened circle; and wherein the pressure transmission catheter is formed so that external pressure forces acting upon an outside surface of the portion of the outer covering having partially-flattened-circle-cross-sectional-shape compress the pressure transmission substance within the inner cavity and are conveyed via the pressure transmission substance to the mechanical sensing input of the pressure transducer to provide an indication of a pressure level of an environment within which the pressure transmission catheter is positioned.