Lewis J Werner

US Patent:

20090248114, Oct 1, 2009

Filed:

Mar 28, 2008

Appl. No.:

12/057629

Inventors:

Vincent P. Ganion - Andover MN, US
David A. Anderson - Stanchfield MN, US
Lewis J. Werner - Crystal MN, US

International Classification:

A61N 1/08

US Classification:

607 60

Abstract:

An implantable medical device having an acoustic element includes a control module coupled to the acoustic element, an acoustic sensing module coupled to the control module, and a patient alert driver module coupled to the control circuit. The patient alert driver module generates a patient alert drive signal for activating the acoustic element to emit a patient alert signal. The control module includes an isolation circuit for isolating the acoustic sensing module from the acoustic element in response to the patient alert drive signal.

US Patent:

20120194341, Aug 2, 2012

Filed:

Jan 27, 2011

Appl. No.:

13/014756

Inventors:

David J. Peichel - Minneapolis MN, US
Lewis J. Werner - Crystal MN, US
Paul G. Krause - Shoreview MN, US
Thomas M. Barnhiser - Maple Grove MN, US
Ryan D. Wyszynski - Oak Grove MN, US

International Classification:

G08B 23/00

US Classification:

3405731

Abstract:

A system and associated method for alerting a patient of a condition detected by an implanted medical device by delivering an alert signal to cause a motion within the patient's body in response to detecting the condition. An accelerometer signal is measured during the alert signal delivery. Accelerometer signal measurements are compared to a threshold. A parameter controlling the alert signal is adjusted to maintain the accelerometer signal within a range of the threshold.