Measurement of patient physiological parameters

US8116873B2 · kind B2 · utility

Assignee

• CVRx, Inc. · US

Inventors

• Russell Eugene Anderson · Hopkins, US
• Nadim Yared · Superior, US
• John C. Stroebel · Blaine, US
• Robert S. Kieval · Golden Valley, US
• Steve Check · Eden Prairie, US
• Eric G. Lovett · Roseville, US

Key dates

• Filing date: Dec 29, 2008
• Grant date: Feb 14, 2012
• Expiry date: Jul 12, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/36117
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method of determining one or more physiological parameter of a patient by providing a plurality of implantable electrodes proximate a blood vessel of the patient, applying a measurement signal through the plurality of electrodes, the measurement signal having a known parameter, obtaining a resultant signal through the plurality of electrodes, the resultant signal having a resultant parameter, calculating vascular impedance based on the measurement signal and the resultant signal, and calculating a physiological parameter based on the vascular impedance. In some embodiments, the physiological parameter is utilized to modify a therapy signal controlling therapy delivered to the patient.