Surgical Lasers In Gynecology

Helmut F. Schellhas; Alfonso E. Barnes

doi:10.1117/12.976079

28 December 1982 Surgical Lasers In Gynecology

Helmut F. Schellhas, Alfonso E. Barnes

Proceedings Volume 0357, Lasers in Medicine and Surgery; (1982) https://doi.org/10.1117/12.976079
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

Abstract

Multipurpose surgical CO2 lasers marketed in the USA have been developed to be applicable to a variety of surgical procedures in many surgical fields. They are all suited for endoscopic surgical procedures and can be fitted to all standard surgical microscopes. They all can adjust the focal length of the laser beam to the different standard focal lengths of the surgical microscope which for instance in laryngoscopy is 400 mm and in colposcopy 300 mm. One laser instrument can even change the spot size in a given focal distance which is very advantageous for some microsurgical procedures (Merrimack Laboratories 820). All multipurpose surgical CO2 laser systems provide a multi-articulated surgical arm for free-hand surgery. The surgical arms are cumbersome to use but they are adapted to the surgeons needs with ingenuity. The practicality of the multi-articulated surgical arms depends mostly on the distance of the handpiece from the surgical console which now is also overbridged by the laser tube in most surgical laser system. The spot size of the beam is variable in most handpieces by interchangeable lenses which modify the focal distance of the beam and the power density. Another common feature in all systems is a coaxial He-Ne pilot light which provides a red spot which unfortunately becomes invisible in a bleeding surgical field. Most surgical laser systems have a spacial mode of TEM 00 which is essential for incisional surgery. The continuous mode of beam delivery is used for incisional surgery and also for most endoscopic procedures.

Citation Download Citation

Helmut F. Schellhas and Alfonso E. Barnes "Surgical Lasers In Gynecology", Proc. SPIE 0357, Lasers in Medicine and Surgery, (28 December 1982); https://doi.org/10.1117/12.976079

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