Abstract: A mixing chamber for use in an intravenous administration set wherein plural medical liquids are delivered to a patient comprising a pair of opposed, parallely extending front and rear walls which are closely spaced to each other relative to their transverse dimension, a top wall extending between and interconnecting the top peripheral edges of the front and rear walls and a side wall extending between and interconnecting the side peripheral edges of the front and rear walls, the front, rear, top and side walls defining a relatively shallow interior chamber. A plurality of entrance ports are formed in the top wall and an exit port is formed in the side wall. A transparent, magnifying window is provided in the front wall to provide a magnified view of the interior of the chamber. Inwardly extending shoulders are formed on the side walls to promote mixing of the plurality of medical liquids being administered to the patient.

Abstract: Intubation apparatus in which a syringe, valve elements and other components of a stomach pump or the like are comprised in a unitary assembly made for a one-time or limited use. A single valve element controls flow of fluids to and from the syringe and is adjustable in indexing motions to place the syringe variously in communication with a tube to be inserted in a body opening and with tubes leading to a container of irrigating fluid, a waste container and a sample container.

Abstract: A toy device comprising an exercising teeter board mounted for rotation on and for movement with a rolling base. The board and its base are especially configured so that portions of one nests within the other so as to preclude a lateral or longitudinal shifting motion of one relative the other. This design lends significant safety features in that it permits persons riding the respective ends of the board, whether standing or sitting, to tilt the board and induce its longitudinal back and forth movement with its rolling base without fear of being thrown from the board due to a twisting or a longitudinal or lateral shifting movement of the board with reference to its base.