タイトルまたは説明

**0nm Diode Laser Used In ENT Surgery

The lightweight, portable ***-nm wavelength Berylas Diode laser with a fiber optic delivery system is being used widely the field of otolaryngology.The laser transmits radiation via a flexible quartz fiber optic cable that can be used with a set of intra nasal, micro laryngeal hand pieces. These hand pieces allow for optimal laser focusing.

Light at its particular wavelength is absorbed by tissues relatively independent of tissue type. Tissue response at this wavelength is determined by the absorption of water as well as by absorption of endogenous components such as hemoglobin and melanin. As a result, the diode laser has a large (up to *0 mm) penetration depth in biologic tissue, which makes it ideal for photo coagulation. By contrast, the Co2 laser has a very shallow penetration depth and thus is best used for tissue vaporization.

The Berylas *5watts flexible fiber delivery system is compatible with hollow ENT handpiece allows for coaxial vision, and is ideally suited for intranasal, oral and micro laryngeal use.

Berylas laser system is housed in a portable case and light weight so it can be easily transported between the operating rooms. The length of set-up time is generally less than 5 minutes, and no warm-up period is necessary.

Application techniques:

1. It can be used in contact mode, in which the tip of the fiber is placed directly on the surface of the tissue. This mode is effective for both photocoagulation and vaporization of tissue, depending on the power density. At the low- or mid-power range, coagulation occurs; at a higher level, vaporization occurs.

2. The laser can be used in near-contact mode, in which the tip of the fiber remains several millimeters apart from the tissue. This mode is largely used for tissue photo coagulation.

3. The laser can be used for interstitial laser-induced thermotherapy, a minimally invasive method of treating both benign and malignant tumors. The laser is placed through puncture holes in the skin, and its energy is absorbed by local tissues. This hyperthermic state causes either immediate or delayed tissue necrosis via coagulation.

4. In the clinic most cases can be done after administering a topical anesthetic and a decongestant spray to the nasal cavity, but micro laryngeal surgery needs General anesthesia with special fleximetalic tube to prevent fire hazard.

Application of Diode Laser in ENT Surgery:

• Turbinate reduction in case of allergic Rhinitis and Vasomotor Rhinitis
• Cautery for Epistaxis, Telengiactasia, Osler-Weber-Rendu disease etc
• Oral lesions- Leukoplakia , Erythroplakia
• Releasing sub mucous fibrosis
• Laser Cautery Tongue lesion
• Tonsillotomy for Tonsillolith
• Laser Granular pharynx
• Myringotomy
• LAUP-Snoring and OSA surgery
• Microlaryngoscopy and removal of nodules, polyp etc under GA.