Patent · US Active

Acoustic transducer for an implantable medical device

US8825161B1 · kind B1 · utility

1Cited by

163References

10Claims

0Family size

Assignee

Cardiac Pacemakers, Inc. · US

Inventors

Bin Mi · Plymouth, US
Lawrence D. Swanson · Lino Lakes, US
Mark S. Bartrum · Shawnee, US

Key dates

Filing date	May 16, 2008
Grant date	Sep 2, 2014
Priority date	—
Expiry date	Mar 13, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61N1/3684
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.