Richard G Sanders

US Patent:

6473646, Oct 29, 2002

Filed:

Apr 18, 2000

Appl. No.:

09/551310

Inventors:

Weimin Sun - Plymouth MN
Veerichetty Kadhiresan - Lino Lakes MN
Bruce H. KenKnight - Maple Grove MN
Richard S. Sanders - Woodbury MN

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61N 1362

US Classification:

607 27, 600510

Abstract:

A method for assessing cardiac function suitable for incorporation into an implantable cardiac rhythm management device. By measuring daily exertion levels in accordance with the invention, an assessment of cardiac function can be made that has been found to correlate well with conventional clinical classifications. The invention also provides for assessing cardiac function in conjunction with different pacing schemes designed to treat heart failure and using the assessment to select the best such scheme for the patient.

US Patent:

6952611, Oct 4, 2005

Filed:

Apr 30, 2002

Appl. No.:

10/136910

Inventors:

Weimin Sun - Plymouth MN, US
Veerichetty Kadhiresan - Lino Lakes MN, US
Bruce H. KenKnight - Maple Grove MN, US
Richard S. Sanders - Woodbury MN, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61N001/365

US Classification:

607 19

Abstract:

A method for assessing cardiac function suitable for incorporation into an implantable cardiac rhythm management device. By measuring daily exertion levels in accordance with the invention, an assessment of cardiac function can be made that has been found to correlate well with conventional clinical classifications. The invention also provides for assessing cardiac function in conjunction with different pacing schemes designed to treat heart failure and using the assessment to select the best such scheme for the patient.

US Patent:

6955640, Oct 18, 2005

Filed:

Sep 28, 2001

Appl. No.:

09/967469

Inventors:

Richard S. Sanders - Woodbury MN, US
Bruce H. Kenknight - Maple Grove MN, US
David S. Wood - Temecula CA, US
Richard V. Calfee - Houston TX, US

Assignee:

Cardiac Pacemakers, Inc. - St. Paul MN

International Classification:

A61N005/00

US Classification:

600 3

Abstract:

An apparatus and method for brachytherapy. One method includes locating a region of cardiac tissue having a relatively large probability of originating or transmitting electrical signals which result in arrhythmic activity and irradiating the region of cardiac tissue to reduce the amount of arrhythmic activity. Irradiating can include regulating protein expression of myocardial cells, killing myocardial cells, ablating myocardial cells, irradiating sleeves of atrial muscle that extend from a left atrial wall around the pulmonary veins, and/or creating lesions that block electrical conduction through myocardial tissue. Locating the region can include locating a foci of an atrial arrhythmia or locating the foci adjacent a pulmonary vein.

US Patent:

7050853, May 23, 2006

Filed:

Jul 7, 2003

Appl. No.:

10/614677

Inventors:

Geng Zhang - Vadnais Heights MN, US
Richard S. Sanders - Stillwater MN, US

Assignee:

Cardiac Pacemakers, Inc. - Saint Paul MN

International Classification:

A61N 1/362

US Classification:

607 9, 600509

Abstract:

An implantable cardiac rhythm management device is programmed and configured to detect a death event. When such an event is detected, the device ceases recording of physiological data, thus preserving in the device's memory the data collected at and shortly before the time of death. A death event may be detected by detecting of an absence of intrinsic electrical activity in the patient's heart and a lack of an evoked response to a predetermined number of pacing pulses.

US Patent:

20040215240, Oct 28, 2004

Filed:

Apr 8, 2004

Appl. No.:

10/821248

Inventors:

Eric Lovett - Roseville MN, US
Mike Favet - San Jose CA, US
Adam Cates - Minneapolis MN, US
Paul Haefner - Circle Pines MN, US
Richard Sanders - Stillwater MN, US

International Classification:

A61N001/362

US Classification:

607/004000

Abstract:

A reconfigurable cardiac device includes a housing, and detection circuitry and energy delivery circuitry provided in the housing. One or more subcutaneous, non-intrathoracic electrodes are coupled to the energy delivery and detection circuitry. A lead interface is provided on the housing and coupled to the energy delivery and detection circuitry. The lead interface is configured to receive at least one lead that includes one or more intrathoracic lead electrodes. A controller is provided in the housing and coupled to the lead interface and the energy delivery and detection circuitry. The system is operable in a first configuration using the subcutaneous electrodes in the absence of the lead and operable in a second configuration using at least one or more of the lead electrodes. The system is capable of providing cardiac activity sensing and stimulation in each of the first and second system configurations, respectively.