Abstract
An animal preparation for investigation of middle ear and Eustachian Tube function is presented. A cannula is implanted in the mastoid air cell system of the rhesus monkey. A pressure air pump is connected to the outer end of the cannula. Also an acoustic impedance bridge (Madsen ZO-70) is adapted to the ear canal. This measurement system allows us to simultaneously record middle ear and ear canal air pressure as well as the acoustic impedance of the tympanic membrane and the middle ear. In this paper, recordings of the Eustachian tube function are reported. The change in acoustic impedance using different ear canal pressures has been studied. Our results show that with this preparation it is possible to establish an experimental animal model of human function which will permit us to investigate Eustachian tube and middle ear function under a variety of normal and pathological conditions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.