MORPHOLOGIC ANALYSIS OF TYMPANIC MEMBRANE GRAFTS
نویسندگان
چکیده
منابع مشابه
Design, fabrication, and in vitro testing of novel three-dimensionally printed tympanic membrane grafts.
The tympanic membrane (TM) is an exquisite structure that captures and transmits sound from the environment to the ossicular chain of the middle ear. The creation of TM grafts by multi-material three-dimensional (3D) printing may overcome limitations of current graft materials, e.g. temporalis muscle fascia, used for surgical reconstruction of the TM. TM graft scaffolds with either 8 or 16 circ...
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 کاملThe 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 کاملOssicular calisthenics: Pneumomassage of the tympanic membrane.
OBJECTIVES/HYPOTHESIS Throughout the latter portion of the 19th and early 20th centuries, pneumomassage devices were widely used by otologists to treat a variety of ear diseases. The so-called eardrum massagers produced a regular, repetitive, oscillatory movement through modifying the air pressure in the ear canal. The goal of this study was to trace the invention, clinical use, technological d...
متن کاملWave model of the cat tympanic membrane.
In order to better understand signal propagation in the ear, a time-domain model of the tympanic membrane (TM) and of the ossicular chain (OC) is derived for the cat. Ossicles are represented by a two-port network and the TM is discretized into a series of transmission lines, each one characterized by its own delay and reflection coefficient. Volume velocity samples are distributed along the ea...
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ژورنال
عنوان ژورنال: The Laryngoscope
سال: 1977
ISSN: 0023-852X
DOI: 10.1288/00005537-197710000-00015