Minnetronix, Inc.

Contour Technology, Inc.

Kenneth E Broen

Timothy A Bachman

Richard A Nazarian

Michael A Knipfer

Don W E Evans

Jeremy J Maniak

Anthony W Schauer

Peter Wollenzien

David J Hansen

Nathan J Bolyard

Corey D Brown

Jeremy John Maniak

Don William Eldon Evans

Anne F Mickelson

Don WE Evans

Don We Evans

A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured for variable form factors to accommodate a variety of wearable configurations for patient convenience and comfort.

Portable controller and power source for mechanical circulation support systems

A portable external device for a mechanical circulation support system includes first and second power sources, e.g. batteries and control electronics for redundant uninterrupted operation of an implantable blood pump. The control and power source module may be configured to accommodate a variety of wearable configurations for patient convenience and comfort.

Portable controller with integral power source for mechanical circulation support systems

Apparatus and methods for muscle stimulation and control of muscle stimulators are disclosed. In at least one embodiment, an electrical muscle stimulator includes a belt having a plurality of stimulator pads, a pulse width modulator controlled by a feedback loop, the PWM providing output to control voltages of the stimulator pads, and a control unit to control the PWM and feedback loop. In various embodiments, the control unit monitors PWM output values during a rest phase of a cycle of the muscle stimulator, provides a contraction phase, and following a sag after the contraction phase, uses PWM values from the rest phase to set a voltage for a subsequent rest phase of a next cycle.

Muscle stimulator and control methods therefor

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Birchwood, MN, United States of America

Kenneth E Broen