Vas-occlusive contraception

Vas-occlusive contraception

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 , s, 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.

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. [ [http://www.malecontraceptives.org/methods/mpu.htm malecontraceptives.org] ]

The FDA approved human trials for the intra-vas device in 2006. [ [http://www.obgynnews.com/article/PIIS0029743707703956/fulltext Full text] [http://download.journals.elsevierhealth.com/pdfs/journals/0029-7437/PIIS0029743707703956.pdf PDF] cite journal | title=Male Contraceptive Methods Are in the Pipeline |author=Robert Finn |journal=Ob.Gyn. News 42:28, May 1, 2007 ]

ide effects

This would have similar side effects to vasectomy, such as formation of sperm antibodies.

See also

* Male contraceptive

References

External links

*
* [http://www.pollockclinics.com/post.html Press release on Dr. Pollock's website]
* [http://www.pollockclinics.com/mcleans.html Another article]
* [http://www.religiousconsultation.org/News_Tracker/birth_control_for_men_promising.htm Birth control for men promising] — has some extra details and information about current trials
* [http://www.medicalpost.com/mpcontent/article.jsp?content=/content/EXTRACT/RAWART/3723/02B.html Reversible male implant may be future of contraception]
* [http://www.fims.uwo.ca/radio/newraw/news/Feb142005/Feb142005articles/Birth%20Control%20Breakthrough.htm Birth control breakthrough — But will it hold mass appeal?] (picture appears to be a mistake)
* [http://www.malecontraceptives.org/methods/mpu.htm Information about Chinese versions] — using MPU medical-grade polyurethane, and MSR medical-grade silicone rubber
* [http://www.malecontraceptives.org/methods/shug.htm Information about a silicone rubber version, the shug] — anchored with a suture
* [http://www.dailymail.co.uk/pages/live/articles/health/healthmain.html?in_article_id=409582&in_page_id=1774 Male contraceptive trial to be expanded] — "A US trial of a new male contraceptive is being expanded after men rushed to sign up."


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Male contraceptive — Male contraceptives include condoms, withdrawal (although medical professionals do not regard this as an effective method of contraception), and vasectomy.[1] In other animals, castration is commonly used for contraception. Other forms of male… …   Wikipedia

  • Birth control — For other uses, see Birth control (disambiguation). Birth control is an umbrella term for several techniques and methods used to prevent fertilization or to interrupt pregnancy at various stages. Birth control techniques and methods include… …   Wikipedia

  • IUD with copper — This article is about non hormonally based intrauterine contraceptives. For hormonally based intrauterine contraceptives such as Mirena, see Hormonal IUD. IUD with copper Photo of a common IUD (Paragard T 380A) Background Birth co …   Wikipedia

  • IUD with progestogen — IntraUterine System (Mirena) Background Birth control type Intrauterine First use 1990 (Mirena currently available) 1976 (Progestasert discontinued in 2001) Failure rates (first year, Mirena) Perfect use 0.2% …   Wikipedia

  • IntraUterine System — Infobox Birth control name = IntraUterine System width = caption = bc type = Intrauterine date first use = 1990 (Mirena) 1976 (Progestasert) rate type = Failure failure measure = first year, Mirena perfect failure% = 0.2 typical failure% = ?… …   Wikipedia

  • Sterilization (surgical procedure) — Infobox Birth control name = Surgical Sterilization width = caption = bc type = Sterilization date first use = Ancient rate type = Failure perfect failure% = under 1 typical failure% = under 1 duration effect = reversibility = Vasectomy reversal… …   Wikipedia

  • Sterilization (medicine) — This article is about sterilization of humans. For sterilization of animals, see Neutering. Sterilization Background Birth control type Sterilization First use Ancient Failure rates (first year) Perfect use …   Wikipedia

  • Deep vein thrombosis — DVT redirects here. For other uses, see DVT (disambiguation). Deep vein thrombosis Classification and external resources A deep vein thrombosis in the right leg. Note the swelling and redness. ICD 10 …   Wikipedia

  • Cerebral venous sinus thrombosis — Classification and external resources Dural veins ICD 10 I63.6, I …   Wikipedia

  • Budd–Chiari syndrome — Budd Chiari syndrome Classification and external resources Posterior abdominal wall, after removal of the peritoneum, showing kidneys, suprarenal capsules, and great vessels. (Hepatic veins labeled at center top.) ICD 10 I …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”