07890173 is referenced by 47 patents and cites 108 patents.

Receiver-stimulators comprise a nearly isotropic transducer assembly, demodulator circuitry, and at least two tissue contacting electrodes. Use of near isotropic transducers allows the devices to be implanted with less concern regarding the orientation relative to an acoustic energy source. Transducers or transducer elements having relatively small sizes, typically less than ½ the wavelength of the acoustic source, enhance isotropy. The use of single crystal piezoelectric materials enhance sensitivity.

Title
Implantable transducer devices
Application Number
12/554181
Publication Number
7890173 (B2)
Application Date
September 4, 2009
Publication Date
February 15, 2011
Inventor
Richard E Riley
Palo Alto
CA, US
Debra S Echt
Woodside
CA, US
Mark W Cowan
Fremont
CA, US
Axel F Brisken
Fremont
CA, US
Agent
Townsend and Townsend and Crew
Assignee
EBR Systems
CA, US
IPC
A61N 1/00
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