Progressive parameter scan for cochlear implants

摘要

A channel fitting process is described for a cochlear implant. A check is made for a channel fitting response condition to a stimulation signal, and if the condition is present, a channel operating parameter is set for the current electrode contact based on the channel fitting response condition, and if channel operating parameters have been set for all the electrode contacts, the channel fitting process ends. Otherwise, a next electrode contact is selected, the stimulation level is changed by a channel fitting increment, and if a stimulation level limit has been reached, the channel fitting process ends, or otherwise, the currently selected electrode contact is stimulated with the stimulation signal at the current stimulation level and the channel fitting process repeats.

主权项

1. A method for determining cochlear implant operating parameters for a plurality of electrode contacts in an implantable electrode array, the method comprising:
stimulating a first electrode contact with an initial stimulation signal at an initial stimulation level; and performing a channel fitting process including:
checking for a channel fitting response condition to the stimulation signal;when the channel fitting response condition is present:
i. setting a channel operating parameter for the selected electrode contact based on the channel fitting response condition and completing the channel fitting process for the selected electrode contact, andii. if channel operating parameters have been set for all electrode contacts, ending the channel fitting process;and when the channel fitting response condition is not present or when channel operating parameters have not been set for all electrode contacts:
iii. selecting a next electrode contact,iv. changing the stimulation level by a channel fitting increment,v. if a stimulation level limit has been reached, ending the channel fitting process,vi. otherwise, stimulating the selected electrode contact with the stimulation signal at the current stimulation level and repeating the channel fitting process.