Cardiac Pacemakers, Inc.

Access Business Group International LLC

Mark S Bartrum

Bin Mi

Joshua K Schwannecke

Matthew J Norconk

Bradley J Pippel

Michael E Miles

Colin J Moore

Lawrence David Swanson

Benjamin C Moes

Ryan D Schamper

Karlis Vecziedins

Mark C Smith

Joseph C Van Den Brink

Ziqi Wu

A Esai Umenei

Ronald L Stoddard

David S Vachon

An acoustic module with a transducer and a solid waveguide. The transducer and waveguide may be curved to focus the acoustic energy along a focal line. The transducer, the top surface of the waveguide and the bottom surface of the waveguide may extend along coaxial curves. The waveguide may include a recess closely receiving the transducer. The waveguide may include an integral skirt that provides a thermal mass. The acoustic module may include a space to accommodate thermal management options. For example, the acoustic module may include a heatsink, an active ventilation system and/or a phase change material. The ultrasound device may include a controller configured to perform a uniformity scan sweep during supply of operating power to the transducer. The uniformity scan sweep can extend through a frequency range that includes the operating point of the acoustic module and does not exceed an acceptable efficiency loss.

Acoustic module and control system for handheld ultrasound device

An implantable medical device includes a housing defining a hermetically sealed chamber and includes a diaphragm portion having a first resonance frequency, an acoustic communication circuit within the chamber, and an acoustic transducer within the chamber. The transducer includes a substantially rigid pin member attached to an inner surface of the diaphragm portion, and an active portion coupled to the pin member. The active portion has a second resonant frequency and includes a piezoelectric element electrically coupled to the acoustic communication circuit. The diaphragm portion and the active transducer portion may be configured such that the first and second resonance frequencies are substantially equal.

Acoustic transducer for an implantable medical device

Growing community of inventors

Avon, OH, United States of America

Mark S Bartrum