Serrated needle design facilitates precise round window membrane perforation
نویسندگان
چکیده
منابع مشابه
THE. ROUND WINDOW NICHE AND MEMBRANE IN CHRONIC SUPPURATIVE OTITIS MEDIA
This study evaluated the histopathologic changes in the round window niche. , and membrane in cases of chronic suppurative otitis media. The pathologic process was found in all subjects. Fibrocystic or fibrous tissue was most commonly seen, while active granulation was less developed. The round window membrane was thicker and inflamed throughout its layers. Inflammatory invasion of the inne...
متن کاملthe. round window niche and membrane in chronic suppurative otitis media
this study evaluated the histopathologic changes in the round window niche. , and membrane in cases of chronic suppurative otitis media. the pathologic process was found in all subjects. fibrocystic or fibrous tissue was most commonly seen, while active granulation was less developed. the round window membrane was thicker and inflamed throughout its layers. inflammatory invasion of the inner ea...
متن کاملA three-dimensional finite element model of round window membrane vibration before and after stapedotomy surgery
Piston stapes prostheses are implanted in patients with refractory conductive or mixed hearing loss due to stapes otosclerosis to stimulate the perilymph with varying degrees of success. The overclosure effect described by the majority of researchers affects mainly low and medium frequencies, and a large number of patients report a lack of satisfactory results for frequencies above 2 kHz. The m...
متن کاملRound window membrane motion before and after stapedotomy surgery - an experimental study.
This paper presents the results of non-contact measurements of the human ear round window (RW) membrane motion in freshly harvested human cadaver temporal bone specimens. A PSV 400 Scanning Laser Vibrometer system (Polytec, Waldbronn, Germany) was used to determine the effect of stapedotomy on the sound-induced displacement amplitude of the RW membrane. The vibration patterns were measured in t...
متن کاملCritical Evaluation of Round Window Membrane Sealing in the Treatment of Idiopathic Sudden Unilateral Hearing Loss
OBJECTIVES Rupture of the round window membrane with consecutive development of a perilymphatic fistula (PLF) is still a matter of controversial debate in the pathogenesis of idiopathic sudden sensorineural hearing loss (SSHL). Until now no consensus exists about whether these patients benefit from performing an exploratory tympanotomy with sealing of the round window. The aim of the present st...
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ژورنال
عنوان ژورنال: Journal of Biomedical Materials Research Part A
سال: 2016
ISSN: 1549-3296
DOI: 10.1002/jbm.a.35692