Reference sensor correction for implantable sensors

Details Reference sensor correction for implantable sensors Reference sensor correction for implantable sensors

2004-11-08

2008-08-19

Nasser, Robert L (Department: 3735)

Surgery

Diagnostic testing

Cardiovascular

C600S485000

Reexamination Certificate

active

07413547

ABSTRACT:
Implantable medical device systems and methods for measuring a body parameter utilizing an implantable functional pressure sensor and a fixed reference sensor, wherein the reference sensor compensates for drift of all other components in the measurement system other than the functional sensor. The reference sensor provides a basis for comparison to determine if and to what extent the electronic components, for example, have drifted over time, and thus provides a basis for correcting functional measurements and improving long term measurement accuracy.

REFERENCES:
patent: 4846191 (1989-07-01), Brockway et al.
patent: 6890303 (2005-05-01), Fitz
patent: 7112170 (2006-09-01), Schock et al.
patent: 2005/0182330 (2005-08-01), Brockway et al.
U.S. Appl. No. 10/717,179, filed Nov. 17, 2003, Zwiers et al.

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