Accession Number : ADD013838

Title :   Method and Apparatus for Passively Detecting and Transducing Intersaccular Acoustic Signals.

Descriptive Note : Patent Application, Filed 14 Apr 88,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Henriquez, Theodore A ; Tims, Allan C

Report Date : 14 Apr 1988

Pagination or Media Count : 22

Abstract : This patent application discloses an apparatus and method for detecting acoustic signals originating in a brain, such as those that characterize intersaccular aneurysms. The apparatus has a piezoelectric detector mounted with a cupping receptacle, the receptacle formed to receive an acoustic matching medium and press the medium against the eye socket of a patient. In this manner, the apparatus provides an acoustic path between the brain and the detector that is inherently low loss and acoustically matched, making for a system that is inherently sensitive. In particular embodiments, the cupping structure can be goggles which can be mounted on the patient's head for convenience, or can be of a form enabling a technician to press the structure against the eye socket. (jhd)

Descriptors :   *PATENT APPLICATIONS, *PIEZOELECTRIC TRANSDUCERS, *IMPEDANCE MATCHING, *BRAIN, BLOOD CIRCULATION, SOUND TRANSMISSION, GOGGLES, EYE, ACOUSTICS, MATCHING, PATIENTS, ACOUSTIC DETECTORS

Subject Categories : Medical Facilities, Equipment and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE