A non-incision method of vas occlusion based on the percutaneous injection of
polyurethane elastomer solution to form plugs is described. The results are based on clinical …

This report describes the safety and efficacy of the procedure for percutaneous injection of
medical‐grade polyurethane elastomer (MPU) to form plugs in the vas deferens. The …

Histological observations of 20 occluded vas segments obstructedby the standard
procedure of medical polyurethane-vas occlusion in 10 volunteers requesting vasectomy …

The present study reports the outcome of operations to remove MPU plugs from 130 men
who had had occlusions of the vas deferens for between 0.5 and 5 years. The female …

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 …

PIP: In southwest China between April, 1988, and March, 1990, providers at 5 family
planning centers in Sichuan, Guangxi, Yunnan, and Guizhou provinces performed 2713 …

Occlusion of the vas deferens has been carried out by applying tantalum clips in 60 men.
Another 50 men were vasectomized conventionally and served as controls. Vasography …

PIP: Research in the development of reversible vas and tubal occlusive de vices is
reviewed. Flexible vas deferens occlusive device have been found to be safe and effective …

An effective mechanical contraceptive device for men would offer significant advantages
over other techniques currently available and would hold promise of wide acceptance …

Aim The rationale and technique underlying a novel concept of non-invasive removal of an
intravasal vas deferens polymeric contraceptive drug to reverse drug injection-induced …