Implantable wireless sensor for pressure measurement within the heart

Patent 6855115 Issued on February 15, 2005. Estimated Expiration Date:

January 22, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Cardiomems, Inc.

Application

No. 10054672 filed on 01/22/2002

US Classes:

600/488, Pressure transducer structure600/486, Testing means inserted in body600/587, Measuring anatomical characteristic or force applied to or exerted by body607/60, Telemetry or communications circuits600/561, Measuring fluid pressure in body600/301, Via monitoring a plurality of physiological data, e.g., pulse and blood pressure324/652, Of a resonant circuit340/870.16, Condition responsive600/300, DIAGNOSTIC TESTING600/345, Electroanalysis600/485Measuring pressure in heart or blood vessel

Examiners

Primary: Schaetzle, Kennedy J.

Attorney, Agent or Firm

Foreign Patent References

1 158 061 CA 06/01/1983
196 44 858.5 DE 10/01/1996
0 337 035 EP 11/01/1993
0 646 365 EP 04/01/1995
WO 8303348 WO 10/01/1983
WO 9006723 WO 06/01/1990
WO 9533517 WO 12/01/1995
WO 9709926 WO 03/01/1997
WO 9732518 WO 09/01/1997
WO 9732519 WO 09/01/1997
WO 9733513 WO 09/01/1997
WO 0016686 WO 03/01/2000
WO 0100089 WO 01/01/2001

International Class

A61B005/0215

Abstract

The progress of a endovascular cardiac repair can be monitored by inserting a pressure transducer sensor using a catheter into a chamber of the heart during endovascular repair and then using a small, hand-held read out device to measure pressure easily, safely, inexpensively and accurately. In one aspect a sensor is introduced into the body by the steps of folding or rolling the sensor into a cylinder, loading it into a catheter, and deploying into the heart chamber by allowing it to unroll or unfold, either by itself or facilitated by the incorporation of a super-elastic alloy component.

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