초록

Multi-position stop-cock valves for use in the intravenous administration of different medications are provided with integral color codes on the valve body and the valve handles whereby the valve position and the medication flow through the valve will be immediately apparent to the attendant.

대표청구항 ▼

A multi-position valve, comprising (a) a relatively fixed valve body formed with at least three angularly spaced body passages for feeding fluids to and from said valve, said body having a different distinctive color thereon adjacent each of said passages; (b) a valve core mounted for relative angul

A multi-position valve, comprising (a) a relatively fixed valve body formed with at least three angularly spaced body passages for feeding fluids to and from said valve, said body having a different distinctive color thereon adjacent each of said passages; (b) a valve core mounted for relative angular movement in said body and formed with at least three angular spaced core passages adapted to form different flow paths according to the angular position of said core with respect to said valve body; (c) a handle on said core having at least four radial portions at different angular locations, all but one of said portions corresponding to said core passages; (d) each of said portions being uniquely and differently colored with respect to the other of said portions whereby flow paths through said valve may be identified by the color relation between said handle portions and said body passages; (e) at least three of said handle portions being of the same colors as at least three of said body passages whereby flow paths through said valve may be identified by aligning a portion of said handle with a correspondingly colored portion on said body; (f) the number of radial portions on said handle being one greater than the number of body passages and representing an extra radial portion being distinctly colored with respect to all other portions on said handle and on said body.