| US 7,572,226 B2 | ||
| System and method for monitoring autonomic balance and physical activity | ||
| Avram Scheiner, Vadnais Heights, Minn. (US); Donald Hopper, Maple Grove, Minn. (US); and Gerrard M. Carlson, Champlin, Minn. (US) | ||
| Assigned to Cardiac Pacemakers, Inc., St. Paul, Minn. (US) | ||
| Filed on Oct. 28, 2003, as Appl. No. 10/695,430. | ||
| Prior Publication US 2005/0090719 A1, Apr. 28, 2005 | ||
| Int. Cl. A61B 5/00 (2006.01) | ||
| U.S. Cl. 600—485 [600/500; 600/508] | 20 Claims |
| 1. An implantable device comprising:
an autonomic tone sensor to provide a tone signal as a function of a sympathetic nervous system and as a function of a parasympathetic
nervous system for a predetermined period of time;
an activity sensor to provide an activity signal as a function of physical activity corresponding to the predetermined period;
and
an information processing unit connected to the autonomic tone sensor and connected to the activity sensor and adapted to
generate an output signal based upon a relationship between the tone signal and the activity signal, establish a baseline
that correlates different tone signals with different activity signals over a predetermined period of time, compare the output
signal to the baseline, and classify a patient's health status based upon the comparison.
|