The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Aug. 17, 1999
Joel A. Kennedy, Arden Hills, MN (US);
St. Croix Medical, Inc., Minneapolis, MN (US);
Abstract
A hearing assistance system senses sound vibrations of an auditory element in the middle ear and provides a stimulus to an auditory sensory element. The vibrations are received through the tympanic membrane, and sensed at the tympanic membrane, malleus, incus, or other auditory element. An electromagnetic sensor includes receiving and reference elements, e.g. a permanent magnet and a coil, having a time-varying magnetic flux linkage due to the vibrations. The magnet and coil are pivotably coupled to an auditory element and a carrier, or vice-versa, for self-alignment. A resulting electrical signal on the coil is processed, then provided to an output stimulator for mechanical or electrical stimulation of the cochlea.