Surgery – Reproduction and fertilization techniques – Embryo transplantation
Patent
1995-05-09
1997-08-12
Hafer, Robert A.
Surgery
Reproduction and fertilization techniques
Embryo transplantation
600 35, A61B 1743, A61D 700
Patent
active
056560109
ABSTRACT:
The invention involves a system for effecting the nonsurgical transplant of embryos into the uterus of an animal. The system comprises (1) a long tubular gripping instrument having an open forward end configured for gripping the walls of the cervix of the uterus when the instrument is inserted to a position inside the cervix, and (2) a probe having a long tubular body which extends through the tubular gripping instrument, the probe being manipulatable to effect movement of the probe relative to the gripping instrument to facilitate passage of the probe and the gripping instrument through the cervix to a position generally adjacent the body of the uterus, and (3) an embryo carrier for carrying one or more embryos to be placed in the uterus of the animal. The embryo carrier is sized for insertion in and through the tubular probe to an embryo release position for release of the embryos into the uterus.
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"Reproduction Resources Artificial Breeding Equipment and Veterinary Supplies", no date, pp. 1A, 1B, 1-17, 17A (admitted prior art).
H.-D. Reichenbach, J. Modl, G. Brem, "Piglets Born After Transcervical Transfer of Embryos into Recipient Gilts", Veterinary Record (1993) 4 pages.
J. M. Galvin, D. B. Killian and A.N.V. Stewart, "A Procedure for Successful Nonsurgical Embryo Transfer in Swine", dated 1994, pp. 1280-1289.
C. Polge, B.N. Day, "Pregnancy Following Non-surgical Egg Transfer in Pigs", Apr. 15, 1968, published in The Veterinary Record.
M.M. Sims and N.L. First, "Nonsurgical Embryo Transfer in Swine", 1987, p. 386, published in the Journal of Animal Science, vol. 65, Supplement 1.
W. Hazeleger, P. Jenneskens and B. Kemp, Non-surgical Transfer of Porcine Blastocyst, Jan., 1995, p. 232, published in the Theriogenology, an International Journal of Animal Reproduction, vol. 43, No. 1.
Day Billy N.
Li Jiewen
Prather Randall S.
Rieke August
Hafer Robert A.
The Curators of the University of Missouri
Yu Justine R.
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