Abstract
New types of cryoprobes have been developed for the cryodestruction of varicose veins and internal lesions such as bronchial, gastric, colonic tumors or oesophageal tumors or varices. These probes can be introduced inside the operative channels of commercially available endoscopes dues to their small diameter (2 or 3 mm) and flexibility. The operating principle is J.-T.expansion of nitrous oxyde inside the tip of the probe where a heat exchanger and self controled flow to avoid cooling down of the feeder. Furthermore the probes are designed for monitoring the size of the frozen area by means of the bioelectrical low frequency impedance method which is essential for correct use and standardisation of the procedure. The probes are described and examples are given of the field of application.
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© 1986 Plenum Press, New York
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Montmayeur, J.D., Le Pivert, P., Verdier, J. (1986). The Development of Cryosurgical Instruments for Internal Medicine. In: Fast, R.W. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 31. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2213-9_150
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DOI: https://doi.org/10.1007/978-1-4613-2213-9_150
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-9299-9
Online ISBN: 978-1-4613-2213-9
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