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Different types of rigid, reversible, vas deferens occlusive devices were developed and evaluated in 14 unilaterally vasectomized dogs. All prosthetic devices had molded silicone rubber bodies, and rigid inflow and outflow tubes. Various techniques for the removal of the vas luminal epithelium, and for the preparation of porous ceramic and etched stainless steel surfaces to encourage tissue ingrowth into the prosthetic device end tubues were attempted. The devices differed in their methods of achieving occlusion. One device used a "rotary stem valve" which had a C-section rotating mechanism; the others used the "shuttle stem valve" which possessed an occlusive element that moved transverse to the axis of flow in the device, thus occluding the device when the stem was depressed. The rotarystem valve was implanted by means of a longitudinal incision. The remaining 13 shuttle stem devices were placed in the vas using either a longitudinal or a transverse implantation. Inno case was sperm transport through the prosthetic devices obtained for more than a few ejaculations.
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
January 1975,
Fertility and sterility,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
May 1979,
Fertility and sterility,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
August 1974,
Fertility and sterility,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
February 1980,
Fertility and sterility,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
August 1974,
Fertility and sterility,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
March 1988,
Fertility and sterility,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
September 1976,
Biomedical engineering,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
August 1974,
Fertility and sterility,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
January 1976,
Medical & biological engineering,
E E Drueschke, and
L J Zaneveld, and
M Burns, and
R Rodzen, and
J R Wingfield, and
J H Maness
January 1992,
Advances in contraceptive delivery systems : CDS,
