Title:
METHOD AND APPARATUS TO MONITOR PULMONARY EDEMA
Document Type and Number:
WIPO Patent Application WO2004101062
Kind Code:
A3
Abstract:
In general, the invention is directed to monitoring fluid retention that may accompany congestive heart failure and pulmonary edema. A medical device, such as an implanted pacemaker or an external defibrillator, senses electrical signals associated with the periodic depolarization and re-polarization of a heart. The device processes the electrical signals to obtain one or more "cardiac parameters," (120) which reflect pulmonary edema. By monitoring the cardiac parameters, the device monitors pulmonary edema (122). Cardiac parameters comprise the amplitude of the QRS complex, the integral of the QRS complex, or the integral of the QRST segment and the like. When the device detects fluid buildup, the device may respond by taking remedial action and/or generating an alert.
Inventors:
BURNES JOHN E (US)
Application Number:
PCT/US2004/013152
Publication Date:
March 24, 2005
Filing Date:
April 28, 2004
Export Citation:
Assignee:
MEDTRONIC INC (US)
BURNES JOHN E (US)
BURNES JOHN E (US)
International Classes:
A61B5/366; A61N1/37; A61M5/142; A61N1/362; (IPC1-7): A61N1/40
Foreign References:
| US5456261A | 1995-10-10 |
Other References:
See also references of EP 1624929A4
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