Graeme Clark Collection

Permanent URI for this collection

Search Results

Now showing 1 - 4 of 4
  • Item
    Thumbnail Image
    Surgery
    Clark, Graeme M. ; Pyman, Brian C. ; Webb, Robert L. (Singular Publishing, 1997)
    Cochlear implant surgery should be undertaken only after the cochlear implant team has established that the child is not achieving useful communication with a hearing aid. This can be difficult because of poor language development in deaf children in this age group or because the child is at a preverbal stage and too young for the use of formal assessment tests. The child's unaided and aided thresholds, however, are important for assessment, as are his or her communication skills. These need to be evaluated by an experienced paediatric audiologist.
  • Item
    Thumbnail Image
    Preoperative medical evaluation
    Clark, Graeme M. ; Pyman, Brian C. (Singular Publishing, 1997)
    The aim of the medical assessment of infants and children is to determine the cause, severity and duration of any hearing loss as well as the presence of any medical conditions that may influence their management with a cochlear implant. There should also be an initial assessment of the child's communication skills and the parental expectations for his or her education.
  • Item
    Thumbnail Image
    Surgical considerations for the placement of the new Cochlear Pty Limited micro-multiple-channel cochlear implant for research studies
    Clark, Graeme M. ; Pyman, B. C. ; Webb, R. L. ( 1995)
    A new micro-receiver-stimulator for research studies on very young children as well as adults has been developed by Cochlear Pty Limited. The dimensions of the device are length 58 mm and width at front 18 mm. The width starts to increase 19 mm from the front, and the back section, which has the receiver coil and magnet, has a maximum diameter of 33 mm. The depth or thickness of the front portion of the electronic package is 5.7mm, and the remainder of the package 4.0 mm. The antenna section is 3.5 mm thick. The other dimensions of the front section of the electronic package are length 9.5 mm and width 13.7 mm. There is an angle of 160° between the titanium electronic package and the receiver coil. The dimensions of the receiver-stimulator were arrived at after anatomic studies on the temporal bones of children ranging in age from 2 to 11 months.
  • Item
    Thumbnail Image
    Surgery for the safe insertion and reinsertion of the banded electrode array
    Clark, Graeme M. ; Pyman, B. C. ; Webb, R. L. ; Franz, B. K-H. G. ; Redhead, T. J. ; Shepherd, R. K. ( 1987)
    Adhering to the surgical technique outlined in the protocol for the Nucleus implant has resulted in over 100 patients worldwide obtaining significant benefit from multichannel stimulation. A detailed analysis of the results in 40 patients shows that it improves their awareness of environmental sounds and their abilities in understanding running speech when combined with lipreading. In addition, one third to one half of the patients also understand significant amounts of running speech without lipreading and some can have interactive conversations over the telephone. It is clear that any insertion trauma is not significant, which is confirmed by the excellent clinical results.