title: Scanning laser Doppler vibrometry of the middle ear ossicles.
abstract: This paper describes measurements of the vibratory modes of the middle ear ossicles made with a scanning laser Doppler vibrometer. Previous studies of the middle ear ossicles with single-point laser Doppler measurements have raised questions regarding the vibrational modes of the ossicular chain. Single-point analysis methods do not have the ability to measure multiple points on the ossicles and, consequently, have limited ability to simultaneously record relative phase information at these points. Using a Polytec Model PSV-100, detailed measurements of the ossicular chain have been completed in the human temporal bone model. This model, when driven with a middle ear transducer, provides detailed three-dimensional data of the vibrational patterns of the middle ear ossicles. Implications for middle ear implantable devices are discussed.
authors.affiliation: Symphonix Devices, Inc., San Jose, CA 94037, USA.
authors.forename: G R
authors.initials: GR
authors.lastname: Ball
authors.forename: A
authors.initials: A
authors.lastname: Huber
authors.forename: R L
authors.initials: RL
authors.lastname: Goode
mesh_terms: D002102:Cadaver; D004301:Doppler Effect; D004429:Ear Ossicles / Q000502:physiology*; D004432:Ear, Middle / Q000502:physiology; D004867:Equipment Design; D006801:Humans; D007834:Lasers; D008297:Male; D008875:Middle Aged; D019736:Prostheses and Implants; D012016:Reference Values; D014159:Transducers; D014432:Tympanic Membrane / Q000502:physiology*; D014732:Vibration