NEW ANTISEPTIC ARTIFICIAL TYMPANIC MEMBRANE.
نویسندگان
چکیده
منابع مشابه
The concept of an artificial tympanic membrane.
A review is given of the development of the concept of an artificial tympanic membrane. Starting with homologous tympanic membranes we compared biodegradable collagen materials (homologous and heterologous) and biodegradable synthetic materials, poly-glycolic acid, poly-lactic acid and poly-alpha-amino acids. As a non-degradable material microporous PTFE and bisphenol-A poly (carbonate) were in...
متن کاملTri-layer Tympanoplasty as a New Technique in High-risk Tympanic Membrane Perforations
Introduction: The eradication of the middle ear disease is mentioned as the fundamental principle of tympanoplasty. The presence of some factors related to patient or disease itself forces the physician to classify the chronic ear disease as high-risk perforations. The aim of this study was to present a tri-layer tympanoplasty technique and its otological and audiological outcomes in the ...
متن کاملFirst branchial cleft; Congenital anomalies; Facial nerve; Tympanic membrane duplication, Tympanic membrane triplication
Methods: We conducted a retrospective chart review of all patients consecutively referred to the senior authors at a tertiary-care Pediatric Otolaryngology clinic for fi rst branchial cleft anomalies over a 14-year period. Patients underwent computerized tomography scan with contrast, otoscopy plus tympanic microsurgery, when indicated (29%), methylene blue mapping of the cutaneous opening, whe...
متن کاملTympanic membrane organ culture using cell culture well inserts engrafted with tympanic membrane tissue explants.
Tissue engineering approaches using growth factors and various materials for repairing chronic perforations of the tympanic membrane are being developed, but there are surprisingly few relevant tissue culture models available to test new treatments. Here, we present a simple three-dimensional model system based on micro-dissecting the rat tympanic membrane umbo and grafting it into the membrane...
متن کاملTwo Mathematical Models for the Tympanic Membrane
In this project we present two mathematical models for the human tympanic membrane. The eardrum can be viewed as an example of the vibrating drum problem. In the first model, we treat the tympanic membrane as a rectangular region. In the second model the tympanic membrane is considered as a disk. Both models use a wave equations. We study the impact of changes in the membrane tension related to...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1889
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(02)29287-9