Patent Number: 7,101,339

Title: Respiration signal measurement apparatus, systems, and methods

Abstract: A cardiac rhythm management apparatus and system may include a first sensor to sense an atrial respiration signal, a second sensor to sense a ventricular respiration signal, and a measurement module capable of being communicatively coupled to the first and second sensors to monitor the atrial and ventricular respiration signals and to select a resulting signal as an indication of respiration. An article may cause a machine to implement a method which includes measuring a second signal responsive to a first signal, measuring a third signal responsive to a first signal, determining a respiration-to-cardiac ratio associated with each one of the second and third signals, and providing a resulting signal including a selected portion of a selected one of the second and third signals as an indication of respiration.

Inventors: Daum; Douglas R. (Oakdale, MN), Zhu; Qingsheng (Little Canada, MN), Scheiner; Avram (Vadnais Heights, MN)

Assignee: Cardiac Pacemakers, Inc.

International Classification: A61B 5/08 (20060101)

Expiration Date: 9/05/02018