Medtronic, Inc.

University of Minnesota

Mustafa Karamanoglu

H Toby Markowitz

Chad Giese

David Scanlon

Ioana Fleming

Phillip C Falkner

Pooja Mehta

Michael Kryger

Sean Campbell-Massa

Steven Lawrence Waldhauser

Eduardo N Warman

Rogier Receveur

Vincent Larik

Koen J Michels

Olaf Eick

Shangqian Peter Zhang

James Steeves

Jeff Jannicke

Don Hefner

Karl Evan Nowak

Vincent E Splett

Tommy Dean Bennett

Victoria Interrante

Karen J Kleckner

Linnea R Lentz

Brian Houston Craig

Lane A Phillips

Noelle Christine Hurtig

Nancy J Rakow

Marie P Smith

Brent Chelgren

Saul E Greenhut

Scott W Davie

Peter Zhang

Sean T Massa

David A Scanlon

An area of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of an area or volume can be determined based upon the sensing of the plurality of points without the use of an imaging device. An implantable medical device can then be navigated relative to the mapping data.

Method and apparatus for mapping a structure

An volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.

Method and apparatus to synchronize a location determination in a structure with a characteristic of the structure

Determining a location of a member

A system and method for controlling respiration depth or respiration rate is provided. A bipolar pair of a plurality of electrodes is selected in a location for stimulating a phrenic nerve. Electrical stimulation is delivered through a medical electrical lead electrode proximate phrenic nerve tissue. Modulating respiration is elicited in response to electrical stimulation of the phrenic nerve.

Method and apparatus for therapies of the cardiovascular and cardiorenal system

A volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.

Tracking a guide member

Interference blocking and frequency selection

Uni-polar and bi-polar switchable tracking system between

A medical device and associated method detect ischemia using stimulation delivered to induce respiration. A spontaneous breathing response to the stimulation-induced respiration is determined. Ischemia is detected in response to the spontaneous breathing response. The spontaneous breathing response is measured as a response to adjusting a parameter controlling the stimulation.

Method and apparatus to detect subcerebral ischemia

Determining and illustrating a structure

A medical device system including a physiological sensor is configured to perform a method for detecting signal artifact in a signal waveform acquired by the sensor. A signal waveform is sensed in a patient using the physiological sensor and a fiducial point associated with the sensed waveform is identified. A point value is established using the fiducial point. Signal artifact is detected in response to the established point value and an established threshold, and at least a portion of the signal waveform is rejected in response to detecting signal artifact.

Detection of waveform artifact

A system and method for delivering a nerve stimulation therapy determines whether a cardiac EGM signal can be sensed by a bipolar pair of electrodes selected from a number of electrodes positioned for stimulating a nerve. In response to not being able to sense a cardiac signal using the bipolar pair, stimulation of the nerve using a selected pair of the electrodes is enabled.

Transvenous method to induce respiration

Determining a size of a representation of a tracked member

A method includes estimating a cardiac signal of a patient, estimating a length of a cardiac refractory period based in part on the cardiac signal and selectively adjusting the length of phrenic nerve electrical stimulation to be delivered to the patient based on the estimated length of the cardiac refractory period. In some examples the method includes delivering phrenic nerve stimulation for approximately the entire refractory period. The phrenic nerve stimulation may be used to treat a variety of breathing disorders.

Phrenic nerve stimulation during cardiac refractory period

Growing community of inventors

Fridley, MN, United States of America

Mustafa Karamanoglu