Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1982-08-02
1984-10-02
Truluck, Dalton L.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604115, 604181, 604218, 604264, 128343, A61D 702, A61M 3702
Patent
active
044745761
DESCRIPTION:
BRIEF SUMMARY
This invention relates to an apparatus for artificial insemination of humans and other animals of the type having a reproductive system which includes a vagina and a uterus.
Artificial insemination of humans and other animals of the type having a reproductive system which includes a vagina and a uterus involves the delivery of a charge of semen to the uterus. One technique of artificial insemination involves locating the cervical canal of the animal with the aid of a speculum and then inserting a catheter along the vagina and cervical canal and into the uterus for delivery of semen loaded in the catheter to the uterus. However, the anatomy of sheep is such that it is almost impossible to pass the catheter along the cervical canal using this technique, and it is therefor necessary to deposit the semen in the cervical canal rather than in the uterine cavity. The spermatozoa carried by the semen is therefore required to pass along the cervical canal and into the uterus before conception can take place. As a result of this, the success rate of the insemination technique is not as high as it would be if the semen could be deposited in the uterine cavity.
It is an object of this invention to provide apparatus for artificial insemination of humans and other animals of the type having a reproductive system which includes a vagina and a uterus, which apparatus enables a charge of semen to be deposited in the uterine cavity of the human or animal.
In one form the invention resides in apparatus for artificial insemination of humans and other animals of the type having a reproductive system which includes a vagina and a uterus, said apparatus comprising a locating tube adapted for insertion into the vagina whereby one end of the tube locates against a cervix of the uterus around the cervical canal, and a delivery member adapted to be passed along the locating tube and into the uterus for delivery of semen into the uterus.
According to a preferred feature of the invention, there is provided means for releasably securing said one end of the locating tube to the cervix.
The locating tube may be releasably secured at said one end to the uterus by means of a suction force applied between the locating tube and the cervix.
The invention will be better understood by reference to the following description of one specific embodiment thereof as shown in the accompanying drawings in which:
FIG. 1 is a sectional elevational view of the locating tube of apparatus according to the embodiment;
FIG. 2 is a schematic elevational view of one form of the delivery member;
FIG. 3 is a schematic view in which the locating tube is shown located against the uterus of an animal and the delivery member of FIG. 2 shown inserted through the cervical canal and into the uterine cavity (the anatomy of the animal being depicted by the phantom lines);
FIG. 4 is an elevational view of the end of the locating tube which is adapted to locate against the uterus of the animal;
FIG. 5 is an enlarged cross-section on the line 5--5 of FIG. 2;
FIG. 6 is a partly sectioned schematic elevational view of an alternative form of the delivery member.
The embodiment shown in the drawings is directed to apparatus for artificial insemination of sheep. The apparatus comprises a locating tube 11 adapted for insertion into the vagina 13 of the animal whereby one end 14 of the locating tube locates against a cervix 15 of the uterus 17 around the cervical canal 19.
A skirt 21 surrounds that portion of the locating tube adjacent said one end 14 whereby a suction chamber 23 is defined between the skirt 21 and that portion of the locating tube which the skirt surrounds. The suction chamber 23 is open at the end thereof adjacent said one end 14 of the locating tube, and said open end of the suction chamber is adapted to be closed-off by the cervix of the animal when the end 14 of the tube is located against the cervix; thus, the locating tube may be retained in engagement with the uterus under the action of a suction force when a vacuum or partial vacuum is applied to the sucti
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patent: 3380453 (1968-04-01), Leveille
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