Histogram-based thoracic impedance monitoring

US8831716B2 · kind B2 · utility

Assignee

• Cardiac Pacemakers, Inc. · US

Inventors

• John D. Hatlestad · Burnsville, US
• Cal Roeske · Eagan, US
• Loell Boyce Moon · Ham Lake, US
• Jeffrey P. Cook · Plymouth, US

Key dates

• Filing date: Sep 11, 2007
• Grant date: Sep 9, 2014
• Expiry date: Dec 21, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/36521
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Systems and methods for monitoring pulmonary edema or other thoracic fluid status in a subject use thoracic impedance histogram information. An internal or external processor circuit receives the thoracic impedance histogram information and uses it to compute and provide a lung fluid status indication. The thoracic impedance histogram information can include a count, mean or median of a histogram bin or subrange of bins within the histogram range.