Patent · US Active

Bone conduction device having a multilayer piezoelectric element

US8837760B2 · kind B2 · utility

5Cited by

36References

25Claims

0Family size

Assignee

Cochlear Limited · AU

Inventors

Marcus Andersson · Jönköping, SE
Kristian Asnes · Chatswood, AU
Erik Holgersson · Gothenburg, SE
Patrik Stromsten · Mölnlycke, SE
Wim Bervoets · Chatswood, AU

Key dates

Filing date	Mar 25, 2010
Grant date	Sep 16, 2014
Priority date	—
Expiry date	Jul 10, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2460/13
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A bone conduction device comprising a multilayer piezoelectric element. The multilayer piezoelectric element comprises two stacked piezoelectric layers, and a flexible passive layer disposed between the piezoelectric layers. The device also comprises a mass component attached to the multilayer piezoelectric element; and a coupling attached to the multilayer piezoelectric element configured to transfer mechanical forces generated by the multilayer piezoelectric element and the mass component to a recipient's skull.

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