Vas-occlusive contraception

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Vas-occlusive contraception is an experimental male contraceptive method that is not yet approved for general use. Proposed methods of vas-occlusive contraception attempt to prevent sperm from traveling down the vasa deferentia. Potential methods include clips, plugs, valves, and other devices.

The intra vas device, analogous to the intrauterine device (IUD) for women, is meant to be a reversible alternative to a vasectomy. The device consists of a set of flexible, hollow silicone plugs, each about a millimetre in diameter and 2.5 cm long. The IVDs are inserted into the vas deferens and block the flow of sperm from the testes to the seminal glands.

Contents 1 Progress 2 See also 3 References 4 External links

[edit] Progress

As of 2005, human clinical trials are being performed to evaluate its effectiveness as a contraceptive. One version is currently in research and development at the Shepherd Medical Company in Vancouver. Another version currently being researched in China is an elastomer plug device, using medical-grade polyurethane (MPU) and silicone rubber (MSR) injected as a liquid.^[1]

The FDA approved human trials for the intra-vas device in 2006.^[2]

[edit] See also

• Male contraceptive

[edit] References

[edit] External links

• U.S. Patent 6,513,528 
• Press release on Dr. Pollock's website
• Another article
• Birth control for men promising — has some extra details and information about current trials
• Reversible male implant may be future of contraception
• Birth control breakthrough — But will it hold mass appeal? (picture appears to be a mistake)
• Information about Chinese versions — using MPU medical-grade polyurethane, and MSR medical-grade silicone rubber
• Information about a silicone rubber version, the shug — anchored with a suture
• Male contraceptive trial to be expanded — "A US trial of a new male contraceptive is being expanded after men rushed to sign up."

v • d • e Birth control Comparison: Comparison of birth control methods Behavioral: Avoiding vaginal intercourse: Anal sex, Oral sex, Non-penetrative sex, Masturbation, Abstinence Including vaginal intercourse: Fertility awareness, Rhythm Method, Withdrawal, Breastfeeding infertility Barrier: Condom, Female condom, Diaphragm, Cervical cap, Lea's Shield Spermicide: Contraceptive sponge Hormonal: Combined: Combined oral contraceptive pill ('the Pill'), Contraceptive patch, NuvaRing, Combined injectable contraceptive Progestogen only: Progestogen only pill ('minipill'), Depo-Provera, Norplant/Jadelle, Implanon Anti-estrogen: Ormeloxifene (a.k.a. Centchroman) Intra-uterine: IUD (copper or progestogen), IUS (progestogen) Post-intercourse: Contraception: Emergency contraception (pills or copper IUD) Abortion: Surgical abortion, Medical abortion (RU-486/abortion pill) Sterilization: Male: Vasectomy Female: Tubal ligation, Essure