منابع مشابه
Laser Assisted Myringotomy and Tympanostomy
Insertion of a PET is indicated for continuous middle ear aeration in patients with chronic otitis media with effusion (OME). It is estimated that some 27 million cases of otitis media occur each year and that 1,000,000 children undergo PET insertion each year, making this procedure the most frequently performed pediatric surgery requiring anesthesia. Nevertheless, since conventional PET requir...
متن کاملCochlear tolerance of Nd:YAG laser myringotomy.
AIM The objective of this study was to assess whether Nd:YAG laser myringotomy has a negative effect on the cochlea. MATERIALS AND METHODS Ten adult guinea pigs with a normal Preyer's reflex were treated by myringotomy with an Nd:YAG laser (power output 8-10W) under surgical microscopic guidance. Preoperative and immediately postoperative hearing tests were performed using auditory brainstem ...
متن کاملSimulators and models for laryngeal laser surgery and laser myringotomy.
INTRODUCTION The laser is an important surgical tool in otolaryngology. It is commonly used for a variety of laryngeal lesions, as well as other aspects of otolaryngology. When used appropriately, advantages of lasers include precision, decreased bleeding, better hemostasis, minimal instrumentation, quicker recovery, and less pain. Disadvantages include surrounding thermal damage, airway fire, ...
متن کاملdynamic analysis of semiconductor laser amplifier using transfer matrix method
transfer matrix method (tmm) has been applied to analyze characteristics of semiconductor laser optical amplifiers. the input signal is sinusoidal modulating wave and we do not assume the modulating bias signal as well. we have shown that the distoration arises from gain modulation at low modulation frequencies, but in microwave modulation frequencies, the gain takes an average value and the re...
متن کاملWavelength switching using multicavity semiconductor laser diodes
We demonstrate wavelength switching in a novel multicavity distributed Bragg reflector semiconductor laser diode. This new device, which uses an integrated saturable absorber and singlemode fiber Bragg gratings, digitally switches wavelength as a function of drive current between all possible binary combinations.
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ژورنال
عنوان ژورنال: THE JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE
سال: 1990
ISSN: 0288-6200
DOI: 10.2530/jslsm1980.11.supplement_689