Patent ID: 8136483

Claim:
A method of creating a pathway in a cervical tract of a sow and depositing an artificial insemination fluid into the sow's body, useful in association with a catheter having a tube coupled to a membrane initially positioned substantially inside the tube, the method comprising: inserting the tube into a cervical tract of the sow; and extending the membrane from an opening in the tube and into the cervical tract by a pressure in the fluid to be deposited into the sow's body, thereby creating the pathway in the tract, and wherein the membrane is extended in the tract without sliding action between the membrane and the cervical tract, said membrane wall thickness is tapered off towards the distal tip and wherein the thinner membrane wall towards the distal tip allows the membrane to herniate when the membrane encounters an obstruction in the cervical tract, thereby clearing the obstruction and enabling the membrane to continue to extend.