发明名称 |
INTRA-VAGINAL DEVICE FOR PIGS |
摘要 |
A porcine intra-vaginal device of a shape and size adapted to be positionable in the vaginal tract across the hymenal ring of a target animal (e.g., a gilt) to extend to both sides of the hymenal ring of the animal. The device once inserted delivers progesterone from a progesterone impregnated matrix on either side of the hymenal ring, the progesterone releasing surface being at least 150 cm<2> in total area. Variable geometry means (preferably for vestibular engagement) ensures retention of the device (e.g., for at least 7 to 14 days) where, in the preferred device, the progesterone load of from 1.9 to 2.5 g within 1.2 mm of the release surface can, by maintaining a progesterone blood plasma level (equating to a progesterone blood plasma level in excess of 4 ng/mL measured in an ovariectomised animal), ensure or prompt the onset of oestrus within 3 to 5 days after device removal.
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申请公布号 |
WO9853758(A1) |
申请公布日期 |
1998.12.03 |
申请号 |
WO1998NZ00064 |
申请日期 |
1998.05.27 |
申请人 |
DEC INTERNATIONAL NZ LIMITED;RATHBONE, MICHAEL, JOHN;BURGGRAFF, SHANE;PHARAOH, JAMES, FREDERICK |
发明人 |
RATHBONE, MICHAEL, JOHN;BURGGRAFF, SHANE;PHARAOH, JAMES, FREDERICK |
分类号 |
A61D1/00;A61D7/00;(IPC1-7):A61D19/00 |
主分类号 |
A61D1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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