A soft plastic ear insert has been developed at Walter Reed Army Hospital, and is currently being issued at the Audiology and Speech Correction Center to all patients requiring a hearing aid.
Because a soft insert has certain inherent advantages over the hard acrylic ear insert, Dr. Aram Glorig* felt that one should be fabricated which would be comfortable and safe and which could be molded precisely to fit the external auditory canal of each patient.
At his suggestion, the technique of fabrication of such an ear insert was undertaken jointly by Mr. Carl A. Nielson and Mr. Theodore J. Bushey, of the Army Prosthetics Research Laboratory (Lieut. Col. Maurice J. Fletcher, MSC, Director), Walter Reed Army Medical Center, and Mr. Ransom L. Currens, of the Audiology and Speech Correction Center. Dr. Glorig supervised the original design in regard to the acoustic characteristics. The soft ear insert was made of
ALBRITE JP. THE DEVELOPMENT AND APPLICATION OF A SOFT EAR INSERT. AMA Arch Otolaryngol. 1955;61(2):235–236. doi:10.1001/archotol.1955.00720020249015
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