07606621 is referenced by 91 patents and cites 95 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
11/315524
Publication Number
7606621 (B2)
Application Date
December 21, 2005
Publication Date
October 20, 2009
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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