Patent ID: 7264610
Filing Date: 2007-09-04
Classification: A61M

Abstract:
1. A volume-regulating device for medical fluids, comprising: an upper case and a lower case which engagingly cooperate with one another; a medical fluid storage tube disposed in an inner space of said lower case; a button body disposed above said fluid storage tube, for applying pressure to said medical fluid storage tube, said button body being accessible from an exterior of said device through a hole in said upper case; a plurality of elastic protrusions positioned radially on a periphery of said button body; a plurality of axially extending combining protrusion posts on said upper case; and a plurality of combining protrusion tubes located on said lower case; said combining protrusion posts each cooperate with ones of said combining protrusion tubes and ones of said elastic protrusions when said upper case and said lower case engagingly cooperate with one another, and whereby when said button body alternatively operates in a downward and an upward direction, pressure is uniformly applied to said storage tube and released therefrom.