Implantable cardiovascular pressure sensing system and methods of use

Abstract

An implantable cardiovascular pressure sensing system can be used to measure blood pressure accurately and safely without any patient intervention. It can include a pressure sensor that makes blood pressure measurements, circuitry for processing and storing the blood pressure measurements, and an antenna for transmitting the processed measurements to an external device (i.e., a device not implanted in the patient). The circuitry can average blood pressure measurements and/or remove artefacts caused by patient motion that is sensed with an accelerometer integrated into implantable cardiovascular pressure sensing system. A multilayer ceramic/polymer coating forms a hermetic seal around the components, preventing leakage or contamination. The implantable cardiovascular pressure sensing system is very versatile: it can be implanted in a blood vessel, next to a blood vessel, in an aneurysm sac, or integrated with another medical implant, such as an Amplatzer septal occluder, and implanted into or next to another vascular structure.