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Proceedings Paper

Noninvasive laser coagulation of the canine vas deferens, ex vivo
Author(s): Christopher M. Cilip; Jonathan P. Jarow; Nathaniel M. Fried
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Paper Abstract

Male sterilization (vasectomy) is more successful, safer, less expensive, and easier to perform than female sterilization (tubal ligation). However, female sterilization is more popular, due to male fear of vasectomy complications (e.g. incision, bleeding, infection, and scrotal pain). The development of a completely noninvasive vasectomy technique may allay some of these concerns. Ytterbium fiber laser radiation with a wavelength of 1075 nm, average power of 11.7 W, 1-s pulse duration, 0.5 Hz pulse rate, and 3-mm-diameter spot was synchronized with cryogen cooling of the scrotal skin surface in canine tissue for a treatment time of 60 s. Vas thermal lesion dimensions measured 2.0 ± 0.3 mm diameter by 3.0 ± 0.9 mm length, without skin damage. The coagulated vas bursting pressure measured 295 ± 72 mm Hg, significantly higher than typical vas ejaculation pressures of 136 + 29 mm Hg. Noninvasive thermal coagulation and occlusion of the vas is feasible.

Paper Details

Date Published: 23 February 2009
PDF: 6 pages
Proc. SPIE 7161, Photonic Therapeutics and Diagnostics V, 71611O (23 February 2009); doi: 10.1117/12.807495
Show Author Affiliations
Christopher M. Cilip, The Univ. of North Carolina at Charlotte (United States)
Jonathan P. Jarow, Johns Hopkins Medical Institutions (United States)
Nathaniel M. Fried, The Univ. of North Carolina at Charlotte (United States)
Johns Hopkins Medical Institutions (United States)


Published in SPIE Proceedings Vol. 7161:
Photonic Therapeutics and Diagnostics V
Henry Hirschberg; Steen J. Madsen; Brian Jet-Fei Wong; Justus F. R. Ilgner; Kenton W. Gregory; Guillermo J. Tearney; Laura Marcu; Reza S. Malek; Nikiforos Kollias; Bernard Choi; Haishan Zeng, Editor(s)

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