Combination earmold and receiver adapter

Details Combination earmold and receiver adapter Combination earmold and receiver adapter

1980-12-24

1983-10-25

Fuller, Benjamin R.

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

Testing of hearing aids

179107E, 179182R, 181130, H04R 2502

Patent

active

044120966

ABSTRACT:
An acoustically sealed earmold and a receiver adapter insertable into the ear of an individual with impaired hearing and used in conjunction with an external receiver to evaluate hearing. A unique method of coupling the receiver adapter to the earmold is also disclosed. The adapter is inserted into the molded portion of the earmold and provides a straight passageway for transmission of sound energy from the receiver to the occluded space of the external canal of the ear. The device substantially reduces the problem of acoustic feedback in high gain hearing aid fittings and provides more accurate transmission of acoustic signals to allow improved hearing evaluation. This invention enables an audiologist to fit the earmold and conduct hearing aid evaluations in a single office visit.

REFERENCES:
patent: 3921756 (1975-11-01), Johnson
patent: 4010820 (1977-03-01), Johnson
patent: 4091067 (1978-05-01), Kramer et al.
patent: 4130741 (1978-12-01), Gottlieb
Samuel F. Lybarger, B.S., "Earmolds," Chapter 42, pp. 508-523.
Myron H. Raas, "Let's Face the Facts, Good Earmold Impressions are Important," Hearing Instruments, p. 11 (Dec. 1976).
Joel M. Mynders, "Earmolds-A Key to Better Fittings, Earmold Feedback: An Alternate Solution," Hearing Instruments, pp. 8-9 (Dec. 1977).
Stanton I. Green, "Earmolds-A Key to Better Fittings, Experimentation in Earmold Ventilation," Hearing Instruments, pp. 9-11 (Dec. 1977).
D. B. Fifield, R. Earnshaw and M. F. Smither, "Earmolds-A Key to Better Fittings, A New Ear Impression Technique," Hearing Instruments, pp. 11-12 and 40-41 (Dec. 1977).
Dan F. Konkle, MA, and Fred Bess, PhD, "Custom-Made vs Stock Earmolds in Hearing Aid Evaluations," Arch Otolaryngol, vol. 99, pp. 140-144 (Feb. 1974).
John F. Orton, MEd, "Practical Aspects of Fitting In-the-Ear Aids, Part II: Dispenser Modifications," Hearing Instrument, vol. 31, No. 5, pp. 16-17 and 84 (1980).
Mead C. Killion, "Earmold Plumbing for Wideband Hearing Aids," Paper CC4, 91st Meeting of the Acoustical Society of America (Apr. 8, 1976).
Product Brochure, "Introducing . . . Receiver Adapter Rings for Silicone Earmolds by Insta-Mold," Insta-Mold Prosthetics, Inc., Philadelphia, Pennsylvania.
"Pro-Mold.TM. Custom Ear Protector Mold Kit," McGhan Medical Corporation, Santa Barbara, California.

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