Power source for a hearing aid
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United States of America Patent
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-
Jun 25, 2002
Grant Date -
N/A
app pub date -
Jul 30, 1998
filing date -
Apr 17, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A metal-air cell for powering electronic components in a hearing aid device. The metal-air cell has a flex circuit inside containing an anode mixture. The flex circuit comprises a flexible substrate having a cathode electrode area at one end of the substrate, an anode electrode area at another end of the substrate and an electronic components area in between. The flexible substrate is disposed within the housing. The cathode electrode area is near a top surface of the housing, and the anode electrode area is near a bottom surface of the housing and in contact with the anode mixture. The cathode electrode area has air flow means for permitting air into the housing. An isolation means between the cathode electrode area and the anode mixture is provided for preventing contact between the cathode electrode area and the anode mixture.
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