Temperature monitoring and control of CO2 laser tissue welding in the urinary tract using a silver halide fiber optic radiometer

Ofer Shenfeld M.D.; Ophir Eyal; Benad Goldwasser; Abraham Katzir

doi:10.1117/12.147032

1 July 1993 Temperature monitoring and control of CO₂ laser tissue welding in the urinary tract using a silver halide fiber optic radiometer

Ofer Shenfeld M.D., Ophir Eyal, Benad Goldwasser, Abraham Katzir

Author Affiliations +

Proceedings Volume 1876, Lasers in Otolaryngology, Dermatology, and Tissue Welding; (1993) https://doi.org/10.1117/12.147032
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

Laser welding of tissues is an experimental surgical technique for the binding of tissues. The difficulty in the clinical implementation of this technique arises from the difficulty in defining the optimal conditions under which a satisfactory weld is formed. Temperature measurements of laser irradiated tissues are difficult to perform and experiments have produced conflicting results. Fiber optic radiometry allows temperature measurement of laser irradiated tissues by remote sensing of emitted infra red (IR) radiation. We developed an IR radiometer capable of accurate temperature measurements (+/- 0.2 degree(s)C). Utilizing this radiometer for the monitoring and control of CO₂ laser irradiated tissues we achieved temperature control of +/- 2.5 degree(s)C of tissues during welding. This system was used to perform laser welds on the urinary bladders of rats. The strength of the welds was recorded for different welding temperatures, and maximal strength was obtained at 55 degree(s)C and 12 sec.

Citation Download Citation

Ofer Shenfeld M.D., Ophir Eyal, Benad Goldwasser, and Abraham Katzir "Temperature monitoring and control of CO₂ laser tissue welding in the urinary tract using a silver halide fiber optic radiometer", Proc. SPIE 1876, Lasers in Otolaryngology, Dermatology, and Tissue Welding, (1 July 1993); https://doi.org/10.1117/12.147032

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available