Surgery – Truss – Pad
Patent
1986-03-07
1989-01-31
Kamm, William E.
Surgery
Truss
Pad
H04R 2500
Patent
active
048008842
ABSTRACT:
A magnetic induction hearing aid where the microphone, the amplifying electronics, the battery and a coil are contained in a single housing which is located deep in the ear canal. A magnet is attached to portions of the middle ear by means of a malleus clip or by implantation between the tympanic membrane and the malleus. The magnet is vibrated by interaction with the magnetic field produced by the coil. Two amplifier designs are disclosed for use with different levels of hearing loss. The magnet can be coated with hydroxyapatite for permanent attachment to the body. The magnet is coated with hydroxyapatite by an ion implantation process, a plasma spraying technique or a method of applying the hydroxyapatite while a precoating polymeric material has not fully solidified.
REFERENCES:
patent: 3870832 (1975-03-01), Fredrickson
patent: 4419995 (1983-12-01), Hochmair et al.
patent: 4467145 (1984-08-01), Borstel
patent: 4539440 (1985-09-01), Sciarra
patent: 4606329 (1986-08-01), Mough
J. Fredrickson, D. Tomlinson, E. Davis and L. Odkvist, Evaluation of an Electromagnetic Implantable Hearing Aid, Canadian Journal of Otolaryngology, vol. 2, No. 1, 1973, pp. 53-62.
W. Ruthen, M. Peters, C. Brenkman, H. Mol, J. Grote and L. van der Marel, The Use of a SQUID Magnetometer for Middle Ear Research, Cryogenics, Sep. 1982, pp. 457-460.
W. Ruthen, C. Blitterswijk, C. Brenkman and J. Grote, Vibrations of Natural and Artificial Middle-Ear Membranes Measured by a Squid Magnetometer.
R. Goode and T. Glattke, Audition via Electromagnetic Induction, Arch Otolaryngol, Jul. 1973, pp. 23-26.
R. Goode, An Implantable Hearing Aid, Tr. Am. Acad. Opth. & Otol., Jan.-Feb. 1970, pp. 128-139.
J. Vernon, T. Mahoney, and A. Schlevning II, Implantable Hearing Aids, pp. 249-268.
Davidson Jim
Gooch Timothy D.
Heide Jorgan
Prescott Anthony D.
Renz Eric A.
Kamm William E.
Keegan Timothy
Richards Medical Company
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