Word: eardrum
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...human ear; of cancer; in Honolulu. Von Bekesy was a scientist employed by a Budapest telephone laboratory when he began his research into the physiological aspects of hearing during the '20s. Over the next four decades his equipment and techniques-he once glued tiny mirrors onto an eardrum to observe its response to varied sounds-helped in the diagnosis of hearing disorders...
Judge Viola ruled as inadmissible evidence a doctor's affidavit stating that Sedgwick's eardrum had been punctured during the fracas that followed his arrest. After several outbursts of laughter, Viola ruled that the affidavit could not be used because the doctor was not present to be cross-examined...
Although harvesting and storing eardrum tissue is no longer difficult, the transplant procedure remains delicate. Surgeons make an incision behind the recipient's ear and cut away any diseased or damaged portions of the hearing organs before replacing them with the donor tissue.,If only the donor's eardrum is used, it is fastened to the patient's ossicles with a nylon sling. If the donor's ossicles are used as well, they are connected to the patient's remaining ear bones so that sound vibrations can be conducted unimpeded to the inner...
...take from one to five hours to implant, do not of themselves restore the patient's hearing. Instead, they serve as a scaffolding over which the patient's own ear-canal skin grows to form new ear tissue. The operation does, however, substantially reduce hearing loss. Most eardrum-damaged patients have moderately severe impediments. In most cases, the implants have improved their hearing to within the normal range...
Tissue rejection, which has led to the failure of other transplant operations, has yet to prove a problem in eardrum homografts. Nor have other complications arisen. Doctors across the country have performed about 70 such operations since 1968. Perkins, who has done 30 of them, reports that 90% of the new eardrums are still in place and intact...