Abstract: Lavage apparatus comprises lavage fluid supply apparatus, a first catheter having a distal end for positioning in the uterus of an animal and a proximal end for communication with the lavage fluid supply, a pair of bilateral catheters connected to the proximal end of the first catheter for extending into respective horns of the uterus, and catheter locating means for locating the catheters in the uterus. The first catheter defines respective supply and drain lumens. The bilateral catheters each define respective lumens for fluid communication between the supply lumen and the interior of the respective uterine horn. The lavage fluid supply apparatus may include a pump for supplying lavage fluid under pressure. The supply may also include a lavage fluid storage tank for containing a volume of fluid, and a heater to maintain the temperature of the stored fluid within a predetermined range.

Abstract: The pump is designed to dispense fluid nutrient at a selectable constant rate from a disposable, flexible plastic bag having a flexible enteric feeder tube attached to it. The bag is suspended from the pump frame with the outlet of the bag and the enteric feeder tube lowermost. The lower portion of the bag adjacent the outlet is then enclosed between a compliant rubber block on the frame, and a planar pressure plate mounted on a door hinged to the frame. The surfaces of the rubber block is provided with spaced, vertically extending protuberant ridges which, under the influence of the compressive force of the pressure plate, occlude the bag in the region about the outlet to define an effluent flow channel. Similarly, spaced horizontal ridges on the block define, within the flow channel, an unoccluded region which is isolted from the outlet by the lower horizontal ridge, and from the remaining volume of the bag, by the upper horizontal ridge.

Abstract: Repeated single needle access to the vascular system is accomplished without percutaneous needling of the skin. A cannula is surgically implanted adjacent to a selected artery or vein and interfaces with same along a longitudinal wall. One end of the cannula exits from the skin. Needle means including an indexing scheme allows serial puncturing of the interface wall to thereby provide the vascular access. When not in use the cannula is plugged and the exposed end thereof is covered preferably by an elastic layer.