| US 7,333,853 B2 | ||
| Implantable medical device having a controlled diagnostic function | ||
| Scott Thomas Mazar, Inver Grove Heights, Minn. (US); and Bruce H. Kenknight, Maple Grove, Minn. (US) | ||
| Assigned to Cardiac Pacemakers, Inc., St. Paul, Minn. (US) | ||
| Filed on Nov. 26, 2002, as Appl. No. 10/305,548. | ||
| Prior Publication US 2004/0102816 A1, May 27, 2004 | ||
| Int. Cl. A61N 1/00 (2006.01) | ||
| U.S. Cl. 607—2 [607/115; 607/16; 607/117] | 19 Claims |
| 1. A system comprising:
an implantable medical device comprising:
a therapy circuit;
a communication circuit configured to communicate information from the implantable medical device to an external patient management
system;
a physiological sensing circuit;
a first mode, activated at implant, in which power to at least a portion of the physiological sensing circuit is repeatedly
turned on and off successively in a power-saving duty cycle, and in which the therapy circuit and the communications circuit
are powered off; and
a second mode, triggered by the physiological sensing circuit having detected a physiological event when on during the first
mode, the second mode configured to override the first mode by permanently activating the therapy circuit, without regard
to sensing, the therapy circuit configured to permanently provide ongoing therapy after being permanently activated by the
second mode, and the second mode configured to activate the communication circuit.
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