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A conception device is a medical device that is used to increase probability of pregnancy.

Contents

Types

Ovulation predictors

There are many conception devices on the market today that can be used for predicting ovulation. Ovulation is the time of the month when the oocyte, or egg, is released by the woman. This is identified as the most fertile time in a woman's menstrual cycle. Introducing semen into the vaginal cavity during the ovulation time, called timing of intercourse, is important for achieving pregnancy.

One type of ovulation predictor is a saliva tester. To use it a woman spits onto a glass slide to observe when salt crystals are forming to identify when she is ovulating. The saliva salt crystal formation is known as "ferning", due to the visual similarity to a fern plant under the microscope as the saliva dries. This will show an increase in estrogen that is related to ovulation.[1][2][3]

There are devices that are like wrist watches that measure subtle body chemical changes on the surface of the skin to help to identify time of ovulation.[4][5]

There are luteinizing hormone (LH) surge urine sticks or ovulation predictor sticks[6] that help identify time of ovulation.[7] A woman will urinate on an LH surge stick once or twice a day, starting a few days before suspected ovulation. Often the stick will show two lines indicating that ovulation is 24–36 hours away.

Artificial insemination

Conception cap

A conception cap assists to protect the semen from the vaginal cavity and allow semen to pool against the cervical os.[8][9] Around time of ovulation a woman will fill the conception cap or cervical cap with semen and place it on her cervical os for several hours to maximize the amount of semen available to a waiting egg. Cervical caps used for conception are different from the cervical caps used for contraception.[10]

Cervical caps as a conception device can also be used as a delivery system for semen obtained by sperm donation.

Semen collectors

Collection condoms are special condoms used to collect semen during sexual intercourse. Contraceptive condoms are generally made of latex, and are designed for contraception and preventing spread of sexually transmitted diseases. Collection condoms are sterile and made from silicone or polyurethane, as latex is somewhat harmful to sperm.[11][12] Semen can also be collected by masturbation into a sterile container, such as a specimen cup.

See also

References

  1. ^ http://thefertilityshop.com/saliva-ovulation-predictor.htm
  2. ^ Ovulation Predictor Saliva Microscopes
  3. ^ Daniel, J., Lonergan, P., Sullivan, P., & Taylor, S. (1987). Evaluation of Determine: The Ovutest as a device for identifying optimal time for conception. Fertility and Sterility, 47(4), 590.
  4. ^ Ovulation Watch
  5. ^ Myers ER. MD Assistant Professor, Department of Obstetrics & Gynecology, Duke University Clinical Research Institute (DCRI) Results of Trial of Fertilite Ovulation Detection Device (OV-Watch Fertility Predictor). Data on file, HealthWatchSystems, Inc. Ov-Watch Clinical Trial
  6. ^ http://women.webmd.com/luteinizing-hormone
  7. ^ [Brown, J.B., Holmes, J., & Barker, G. (1991). Use of the home ovarian monitor in pregnancy avoidance. American Journal of Obstetrics and Gynecology, 165, 2008–2011 Ovulation Predictor Stick Use]
  8. ^ Encouraging Fertility by Using a Cervical Cap
  9. ^ Pregnancy following use of the cervical cup for home artificial insemination utilizing homologus semen. MP Diamond et al. Fertility and Sterility, 1983 Apr:39(4): 480-4.
  10. ^ http://www.wmagazine.com/beauty/2008/04/buzz_i3
  11. ^ Semen Collectors
  12. ^ Condoms for the collection of semen samples. Ross LO. Fertility and Sterility. 1995 Mar;63(3):681-2.

A conception device is a medical device which is used to assist in the achievement of a pregnancy, usually by means other than sexual intercourse or NI. This article deals exclusively with conception devices for human reproduction.

Contents

Types

Ovulation predictors

There are many conception devices on the market today that can be used for predicting ovulation so that sperm can be introduced into the reproductive tract of a woman at the appropriate time, whether by NI or by artificial insemination. Ovulation is the time of the month when the oocyte, or egg, is released by the woman. This is identified as the most fertile time in a woman's menstrual cycle. Introducing semen into the vaginal cavity during the ovulation time, called timing of intercourse, is important for achieving pregnancy.

One type of ovulation predictor is a saliva tester. To use it a woman spits onto a glass slide to observe when salt crystals are forming to identify when she is ovulating. The saliva salt crystal formation is known as "ferning", due to the visual similarity to a fern plant under the microscope as the saliva dries. This will show an increase in estrogen that is related to ovulation.[1][2][3]

There are devices that are like wrist watches that measure subtle body chemical changes on the surface of the skin to help to identify time of ovulation.[4][5]

A commonly used ovulation predictor is the luteinizing hormone (LH) surge urine stick or ovulation predictor stick[6] that helps to identify the time of ovulation.[7] A woman will urinate on an LH surge stick once or twice a day, starting a few days before suspected ovulation. Often the stick will show two lines indicating that ovulation is 24–36 hours away.

Artificial insemination

See the for information about the various methods of artificial insemination.

Various devices may be used as follows:

Conception cap

A conception cap assists to protect the semen from the vaginal cavity and allow semen to pool against the cervical os.[8][9] Around time of ovulation a woman will fill the conception cap or cervical cap with semen and place it on her cervical os for several hours to maximize the amount of time the semen is available to fertilise a waiting egg. Cervical caps used for conception are different from the cervical caps used for contraception.[10]

Cervical caps as a conception device are increasingly being used as a delivery system for semen obtained by sperm donation.

Semen collectors

Collection condoms are special condoms primarily used to collect semen during sexual intercourse. Contraceptive condoms are generally made of latex, and are designed for contraception and preventing spread of sexually transmitted diseases. Collection condoms are sterile and made from silicone or polyurethane, as latex is somewhat harmful to sperm.[11][12] Semen can also be collected by masturbation into a sterile container, such as a specimen cup.

Needle-less syringe

A needle-less syringe may be used to insert donor or partner sperm into the vagina for ICI inseminations. The syringe may be used by the recipient woman (self-insemination), or by a third party, often a nurse or doctor.

See also

References

  1. ^ http://thefertilityshop.com/saliva-ovulation-predictor.htm
  2. ^ Ovulation Predictor Saliva Microscopes
  3. ^ Daniel, J., Lonergan, P., Sullivan, P., & Taylor, S. (1987). Evaluation of Determine: The Ovutest as a device for identifying optimal time for conception. Fertility and Sterility, 47(4), 590.
  4. ^ Ovulation Watch
  5. ^ Myers ER. MD Assistant Professor, Department of Obstetrics & Gynecology, Duke University Clinical Research Institute (DCRI) Results of Trial of Fertilite Ovulation Detection Device (OV-Watch Fertility Predictor). Data on file, HealthWatchSystems, Inc. Ov-Watch Clinical Trial
  6. ^ http://women.webmd.com/luteinizing-hormone
  7. ^ [Brown, J.B., Holmes, J., & Barker, G. (1991). Use of the home ovarian monitor in pregnancy avoidance. American Journal of Obstetrics and Gynecology, 165, 2008–2011 Ovulation Predictor Stick Use]
  8. ^ Encouraging Fertility by Using a Cervical Cap
  9. ^ Pregnancy following use of the cervical cup for home artificial insemination utilizing homologus semen. MP Diamond et al. Fertility and Sterility, 1983 Apr:39(4): 480-4.
  10. ^ http://www.wmagazine.com/beauty/2008/04/buzz_i3
  11. ^ Semen Collectors
  12. ^ Condoms for the collection of semen samples. Ross LO. Fertility and Sterility. 1995 Mar;63(3):681-2.







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