Extra-amniotic administration device

A device for administering liquid medication to the extra-amniotic space of an impregnated uterus, comprising:

• an elongated, resiliently flexible tube open at opposite ends thereof and of sufficient lenth to extend through the cervix and into said extra-amniotic space of a uterus at one end and into the birth canal at the other end;
• first conduit means connected to the other end of said tube means and extendable through and beyond the birth canal for permitting a liquid medication to be supplied through said tube into said extra-amniotic space;
• first and second flanges secured to said tube and being spaced from each other along said tube by a distance approximately equal to the distance between the uterus and the birth canal at the opposite ends of the cervix;
• said first flange being positionable within the extra-amniotic space of said impregnated uterus directly adjacent the internal os of the cervix for preventing accidental ejection of the tube from the uterus;
• said second flange being cup-shaped and positionable within the birth canal closely adjacent the external os of the cervix for preventing accidental ascension of the tube relative to the uterus, said cup-shaped second flange having a central portion thereof disposed closely adjacent but slightly spaced from the external os to collect any liquid medication which seeps back through the cervix, the cup-shaped second flange having a rim which is snugly engageable with the wall of the birth canal surrounding the external os;
• a resiliently flexible, inflatable, substantially cylindrical member disposed between said flanges and connected to said tube to define a fluid-tight annular chamber surrounding said tube, said member when inflated snugly engaging the wall of the cervix;
• and
• second conduit means connected to said chamber within said inflatable member and extendable therefrom through and beyond said birth canal for supplying an inflating fluid to said chamber.