OERESTYKKE TIL ET HOEREAPPARAT MED EN UDSKIFTELIG, SAMMENSTRYKKELIG MUFFE AF EN POLYMERSKUM

Detachably secured to the ear piece (11) of a hearing aid is a user-disposable sleeve (13) comprising soft polymeric retarded recovery foam (14) that can be compressed to be freely insertable into a person's ear canal and then allowed to recover to become wedged in the canal. The sleeve prefera...

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Bibliographische Detailangaben
Hauptverfasser:	KOLPE, VASANT VENUGOPAL, AHLBERG, CARL STANLEY, BUSHONG, JEROLD WARD, CHAMBERLIN, DAVIS WAYNE, OLIVEIRA, ROBERT JAMES
Format:	Patent
Sprache:	dan
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	Detachably secured to the ear piece (11) of a hearing aid is a user-disposable sleeve (13) comprising soft polymeric retarded recovery foam (14) that can be compressed to be freely insertable into a person's ear canal and then allowed to recover to become wedged in the canal. The sleeve preferably includes a flexible, elongated plastic duct (16) over which the foam fits, and the duct is formed with a screw thread of a rigid plastic which mates with a screw thread on the ear piece for each attachment and removal. The external surface of the foam preferably is substantially cylindrical and can be formed with flutes (26) to provide venting of the user's ear.