Intravasal injection of formed-in-place silicone rubber as a method of vas occlusion

Zhao, S.C.; Zhang, S.P.; Yu, R.C.; Zhao, S.C; Zhang, S.P; Yu, R.C

doi:10.1111/j.1365-2605.1992.tb01138.x

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Intravasal injection of formed-in-place silicone rubber as a method of vas occlusion

Zhao, S.C.; Zhang, S.P.; Yu, R.C.

International Journal of Andrology 15(6): 460-464

1992

ISSN/ISBN: 0105-6263

PMID: 1483734

DOI: 10.1111/j.1365-2605.1992.tb01138.x

Document Number: 330112

This report describes the procedure for percutaneous injection of silicone to form plugs in the vas deferens. The injection of 0.1-0.16 ml Chinese-made silicone into 14 men achieved occlusion of a 1-cm length of the vas. Sperm concentrations declined within 1 month of the operation and azoospermia was achieved in all men by 9 months.