Surgery – Reproduction and fertilization techniques – Artificial insemination
Patent
1994-12-13
1996-07-16
Green, Randall L.
Surgery
Reproduction and fertilization techniques
Artificial insemination
604131, 604 55, A61B 1743, A61M 3700
Patent
active
055362435
ABSTRACT:
A self-contained time-release artificial insemination device which introduces a bolus of semen into the cervical canal or uterus over a period of hours is disclosed. The device includes a cervical cap adapted to conform and adhere to the cervix and includes an elongated nipple that extends in a perpendicular direction from the cap for insertion into the cervical canal or uterus. A time-release mechanism is provided in communication with the nipple for delivering semen through the nipple and includes a tubular body which defines a semen chamber and expansion chamber. A plunger is slidably mounted in the tubular member for separating the semen and expansion chambers. A reservoir is provided in communication with the expansion chamber for providing a quantity of fluid thereto, and a sealable aperture is provided for withdrawing and introducing fluids to both the reservoir and expansion chamber. Within the expansion chamber, a quantity of water-swellable material is disposed for absorbing water from the reservoir and expanding so that the plunger is urged towards the cervical cap and the semen is discharged through the nipple and into the cervix or uterus over a period of hours.
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Dilapan Hydroscopic Cervical Dilator: Packaging and Instructions for Use, Gynotech, Inc.
Laminaria Cervical Dilator: Packaging and Product Data, Medgyn Products, Inc.
"Slow release intrauterine insemination versus the bolus technique in the treatment of women with cervical mucus hostility"; Human Reproduction vol. 7 No. 2 pp. 227-229, 1992, Nabil S. Muharib, Ahmed Abdel Gadir, and Robert W. Shaw.
Green Randall L.
Van Over Perry E.
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