Patent ID: 8584701
Filing Date: 2013-11-19
Classification: A61M,F16K,Y10T

Abstract:
1. A stopcock with intuitive functional state display identifying flow through the stopcock, the stopcock comprising in combination: a valve body having a recess; at least two fluid pathways joined to said valve body; each fluid pathway adapted to route fluid into and out of said valve body; a central manifold located within said recess of said valve body; said central manifold having an adjacently connected offset handle; said central manifold adapted to be rotated relative to said valve body through said handle; said central manifold having at least one multi-ended flow path therein; said central manifold having ends of said at least one multi-ended flow path selectively alignable with various ones of said at least two fluid pathways of said valve body; a first indicator portion separably fixed relative to said valve body and having markings thereon; a second indicator portion separably coupled to said central manifold and overlying said first indicator portion; said second indicator portion adapted to rotate when said central manifold rotates; said first indicator portion and said second indicator portion interacting to display said markings indicative of a functional state of said stopcock; wherein said first indicator portion includes at least one of said markings adjacent each fluid pathway; said second indicator portion including an object configured to block all of said markings of said first indicator except those markings which are adjacent fluid pathways of said valve body which are open through said central manifold; wherein said second indicator portion includes a surface with windows therein, said windows located adjacent to the ends of said at least one multi-ended flow path of said central manifold, such that when said ends of said flow paths of said central manifold are aligned with said fluid pathways of said valve body, said markings of said first indicator portion are aligned with said windows of said second indicator portion and can be visualized through said surface of said second indicator portion; wherein said first indicator portion includes a plate with said markings thereon, said plate located adjacent said surface of said second indicator portion; and said first indicator portion and said second indicator portion in the form of thin parallel plates, said valve body recess and said central manifold having a matching cylindrical form, said first indicator plate having a central circular hole through which said valve body extends.