Inventor

WAHLSTRAND JOHN D

US45 patents

⚠️ This page may combine multiple inventors who share the name “WAHLSTRAND JOHN D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WAHLSTRAND JOHN D

MEDTRONIC INC

Implantable medical device for measuring time varying physiologic conditions especially edema and for responding thereto

Implantable medical system for performing transthoracic impedance measurements associated with cardiac function

Implantable lead functional status monitor and method

Implantable lead functional status monitor and method

Method and apparatus for rate-responsive cardiac pacing using header mounted pressure wave transducer

Detection of pressure waves transmitted through catheter/lead body

Method and apparatus for automatic pacing threshold determination

Verification of capture using pressure waves transmitted through a pacing lead

Method and apparatus for rate-responsive cardiac pacing

Magnetic field sensor

Method and apparatus for rate-responsive cardiac pacing

Automatic lead recognition for implantable medical device

Isolation circuitry and method for gradient field safety in an implantable medical device

Method and apparatus for rate responsive adjustments in an implantable medical device

System and method for employing temperature measurements to control the operation of an implantable medical device

Resetting ERI/POR/PIR/indicators in implantable medical devices

Method and apparatus for detecting cardiac capture

Capture detection method

Method and apparatus for heart transplant monitoring and analog telemetry calibration

Extra-cardiovascular pacing by an implantable cardioverter defibrillator

Ultrasound powered pulse delivery device

System and method for cardiac pacing

Apparatus and method to discriminate between telemetry downlink signals and noise in an implanted device

Method for heart transplant monitoring and analog telemetry calibration

Extra-cardiovascular pacing by an implantable cardioverter defibrillator

Extra-cardiovascular cardiac pacing system for delivering composite pacing pulses

Tachyarrhythmia induction by an extra-cardiovascular implantable cardioverter defibrillator

Extra-cardiovascular pacing using high-voltage therapy circuitry of an implantable cardioverter defibrillator

Tachyarrhythmia induction by an extra-cardiovascular implantable cardioverter defibrillator

Extra-cardiovascular pacing by an implantable cardioverter defibrillator

Implantable lead functional status monitor and method

Power management for an implantable device

Power management for an implantable device

Extra-cardiovascular cardiac pacing system for delivering composite pacing pulses

Extra-cardiovascular pacing by an implantable cardioverter defibrillator

Extra-cardiovascular cardiac pacing system for delivering composite pacing pulses

Extra-cardiovascular cardiac pacing system for delivering composite pacing pulses

Isolation circuitry and method for gradient field safety in an implantable medical device

Fault tolerant pacing

Pacing output K-factor improvements

WAHLSTRAND JOHN D

Determining intercardiac impedance

Implantable medical device impedance measurement module for communication with one or more lead-borne devices

SCHMIDT CRAIG L

Estimating remaining battery service life in an implantable medical device

JORGENSON DAVID J

Implantable lead functional status monitor and method

MEDTRONIC IND

EGM signal acquisition and processing system