Walter C Olson

Address:

3915 W Keim Dr, Phoenix, AZ 85019

VIN:

5NMSG3AB6AH349901

Make:

HYUNDAI

Model:

SANTA FE

Year:

2010

US Patent:

6487443, Nov 26, 2002

Filed:

Mar 28, 2001

Appl. No.:

09/819433

Inventors:

Walter H. Olson - North Oaks MN
William F. Kaemmerer - Edina MN
Mark L. Brown - North Oaks MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B 5046

US Classification:

600518

Abstract:

An implantable antiarrhythmia device which detects and classifies arrhythmias of the human heart, and delivers appropriate therapy. The device employs a method of arrhythmia classification based on a set of prioritized rules, each of the rules defining a plurality of criteria based upon characteristics of sensed depolarizations of heart tissue, each rule being met when the criteria associated with the rule are met. Some rules, when met, trigger delivery of antiarrhythmia therapy. Other rules, when met, inhibit delivery of antiarrhythmia therapy. The rules may be met simultaneously, and if so, the highest priority rule governs the behavior of the device.

US Patent:

6508771, Jan 21, 2003

Filed:

Dec 1, 1999

Appl. No.:

09/452533

Inventors:

Vasant Padmanabhan - Maple Grove MN
Walter H. Olson - North Oaks MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B 50468

US Classification:

600515, 600519

Abstract:

An implantable monitoring device for monitoring a patients heart rate variability over time. The device includes a cardiac electrogram amplifier, a sensing electrode coupled to an input of the amplifier, timing circuitry, processing circutry and a memory. The timing circuitry defines successive monitoring periods each extending over a period of hours, the monitoring periods together extending at least over a period of weeks and also defines successive shorter time periods during each monitoring period. The memory stores heart intervals between depolarizations of the patients heart sensed by the amplifier during the shorter time periods. The processing circuitry calculates median intervals between depolarizations of the patients heart sensed by the amplifier during the shorter time periods and calculates standard deviations of the median intervals calculated during each monitoring period. The processing circuitry may also reject heart intervals occurring during tachyarrhythmias and calculate median intervals based only on heart intervals not rejected.

US Patent:

6662050, Dec 9, 2003

Filed:

Aug 3, 2001

Appl. No.:

09/921455

Inventors:

Walter H. Olson - North Oaks MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1362

US Classification:

607 27, 607 31, 607 30

Abstract:

An implantable medical device, such as an implantable cardioverter/defibrillator (ICD) issues a notification when it has been left in a programmed state for some time, possibly inadvertently. The patient or another person may then initiate a course of corrective action, such as programming the device to an appropriate state.

US Patent:

6714811, Mar 30, 2004

Filed:

Dec 1, 1999

Appl. No.:

09/452659

Inventors:

Vasant Padmanabhan - Maple Grove MN
Karen A. Stone - White Bear Lake MN
Walter H. Olson - North Oaks MN
Kevin T. Ousdigian - St. Paul MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B 504

US Classification:

600509, 607 9

Abstract:

A monitoring device for implant in a patients body. The device is provided with a physiologic sensor generating output signals, which signals are stored as numerical values. The device defines first monitoring periods limited to time periods during successive nights during which the patient is likely to be asleep, stores the numerical values generated during the first monitoring periods in a memory and calculates values reflecting general levels of the numerical values during the first monitoring periods. The device may also or alternatively define second monitoring periods limited to time periods during successive daytime and store numerical values generated during the second monitoring periods. The physiologic sensor may be an electrogram amplifier or other sensor indicative of metabolic demand for oxygenated blood, such as an activity sensor. The calculated values reflecting general levels of the numerical values generated during the monitoring periods may be average values, such as mean values or over-all total values, depending upon the sensor employed.

US Patent:

6731978, May 4, 2004

Filed:

Oct 30, 2002

Appl. No.:

10/283634

Inventors:

Walter H. Olson - North Oaks MN
William F. Kaemmerer - Edina MN
Mark L. Brown - North Oaks MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 139

US Classification:

607 4, 607 14

Abstract:

An implantable antiarrhytmia device which detects and classifies arrhythmias of the human heart, and delivers appropriate therapy. The device employs a method of arrhythmia classification based on a set of prioritized rules, each of the rules defining a plurality of criteria based upon characteristics of sensed depolarizations of heart tissue, each rule being met when the criteria associated with the rule are met. Some rules, when met, trigger delivery of antiarrhythmia therapy. Other rules, when met, inhibit delivery of antiarrhythmia therapy. The rules may be met simultaneously, and if so, the highest priority rule governs the behavior of the device.

US Patent:

6879856, Apr 12, 2005

Filed:

Mar 21, 2001

Appl. No.:

09/814251

Inventors:

Robert W. Stadler - Shoreview MN, US
Bruce D. Gunderson - Plymouth MN, US
Jeffrey M. Gillberg - Coon Rapids MN, US
Walter H. Olson - North Oaks MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N001/368

US Classification:

607 14

Abstract:

The invention relates to devices that detect and/or treat tachyarrhythmias. The invention includes software systems that distinguish among various tachyarrhythmias in order to provide treatment for specific tachyarrhythmias. One aspect of the invention employs a methodology to provisionally detect ventricular tachycardia and/or fibrillation and thereafter apply a discrimination function to a series of measured intervals preceding the provisional detection. Discrimination is accomplished by sorting the intervals preceding provisional detection into bins corresponding to interval ranges and examining the relative distribution of the intervals within the bins.

US Patent:

6892094, May 10, 2005

Filed:

Apr 30, 2002

Appl. No.:

10/137517

Inventors:

Kevin T. Ousdigian - Shoreview MN, US
Vasant Padmanabhan - Maple Grove MN, US
Paul J. DeGroot - Brooklyn Park MN, US
Walter H. Olson - North Oaks MN, US
Vinod Sharma - Roseville MN, US
Cameron J. Kaszas - Minneapolis MN, US
Paul G. Krause - St. Louis Park MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N001/39

US Classification:

607 4

Abstract:

A system and method for treating an arrhythmia of the heart, involves delivery of anti-tachy pacing (ATP) pulses to the heart, possibly followed by the delivery of a high-voltage shock. ATP delivery is controlled such that the time delivery of any high-voltage shock is not affected by the prior delivery of the ATP pulses. System control may be accomplished using one or more programmable parameters, which may include a user-specified shock energy.

US Patent:

6922585, Jul 26, 2005

Filed:

Apr 5, 2002

Appl. No.:

10/117465

Inventors:

Xiaohong Zhou - Plymouth MN, US
Vinod Sharma - Roseville MN, US
Walter H. Olson - North Oaks MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B005/046

US Classification:

600518, 600515, 607 19

Abstract:

An implantable medical device and method are provided for assessing autonomic tone and risk factors associated with arrhythmias and, based on this assessment, an early recurrence of ventricular tachycardia or ventricular fibrillation is predicted. Specifically, changes in R—R interval, heart rate variability, patient activity, and myocardial ischemia are measured prior to and after a detected an arrhythmia episode. A recurrence score is calculated as a weighted sum of measured parameters and compared to a prediction criterion. The prediction criterion may be a preset threshold score or an individualized episode template based on previously calculated recurrence scores associated with recurring episodes. Stored parameters and episode-related data may be downloaded for offline analyses for optimizing prediction criteria and monitoring patient status.