Graeme Clark Collection

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1984 - 1989 1 1990 - 1996 2
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Author: PYMAN, BRIAN × End date: 1999 × Subject: cochlear implants × Subject: otolaryngology × Subject: otology ×

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    Surgery for an improved multiple-channel cochlear implant
    Clark, Graeme M. ; Pyman, Brian C. ; Webb, Robert L. ; Bailey, Quentin E. ; Shepherd, Robert K. ( 1984)
    An improved multiple-channel cochlear implant has been developed. The titanium container with enclosed electronics, the receiver coil and the connector are embedded in medical-grade Silastic. The upper half of the implant has a diameter of 35 mm and a height of 4.5 mm. and the lower half a diameter of 23 mm and a height of.5 mm. The electrode array has also been designed to reduce the possibility of breakage due to repeated movements over many years. The surgery involves drilling a bed in the mastoid bone for the receiver-stimulator, and fixing the proximal electrode under the mastoid cortex. Gentle insertion of the electrode array through the round window and along the seala tympani is achieved with a specially designed microclaw.
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    Speech perception results for implanted children with different levels of preoperative residual hearing [Abstract]
    Galvin, K.L. ; Rance, G. ; Larratt, M. ; Hollow, R. ; Herridge, S. ; Skok, M. ; Dowell, R.C. ; Pyman, B. ; Gibson, W.P.R. ; Clark, Graeme M. ; Cowan, R. S. C. ; DelDot, J. ; Barker, E. J. ; Sarant, J. Z. ; Dettman, S. ; Pegg, P. ( 1996)
    Many reports have established that hearing-impaired children using the Nucleus 22-channel cochlear implant may show both significant benefits to lipreading, and significant scores on open-set words and sentences using electrical stimulation only. These findings have raised suggestions that severely or severely-to-profoundly deaf children might benefit more from a cochlear implant than conventional amplification.
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    Speech perception benefits for implanted children with preoperative residual hearing [Abstract]
    Hollow, R. ; Rance, G. ; Dowell, R.C. ; Pyman, B. ; Clark, Graeme M. ; Cowan, R. S. C. ; Galvin, K. L. ; Barker, E. J. ; Sarant, J. Z. ; Dettman, S. ( 1995)
    Since the implantation of the first children with the Nucleus 22-channel cochlear prosthesis in Melbourne in 1985, there has been rapid expansion in the number of implanted children world-wide. Improved surgical technique and experience in paediatric assessment and management have contributed to a trend to implant very young children. At the same time there has also been continuing development of improved speech processing strategies resulting in greater speech perception benefits.