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US 4,219,021 AGranted
Multi-position stop-cock valve for intravenous administration of multiple medications
OwnerJoseph L. Finkinventor
Life of this patent
Estimating the term…
Abstract
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.
Claims10
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.
3 more elements
A valve for use with intravenous injection sets, or the like, comprising
- (a) a valve body formed with a chamber of circular cross-section and at least three angularly spaced inlet and outlet ports in said body communicating with said chamber and the exterior of said body;
- (b) said body being formed with angularly spaced connecting means each formed with a passage communicating with one of said ports and connectable to a tubular conduit for feeding fluids to and from said valve, each connecting means being distinctly colored;
- (c) a generally cylindrical valve core rotatably mounted in said chamber;
- (d) said core being formed with passages adapted to form different flow paths between said ports, according to the angular position of said core;
- (e) at least four outer arms on said core extending radially outwards therefrom in spaced angular relation to one another, and all but one extending in a direction corresponding to one of said flow paths;
- (f) each of said arms being uniquely colored with respect to each other and at least three being of the same colors as the connecting means to form a color code whereby flow paths through said valve are identified by the color relation between said arms and said connecting means;
- (g) the number of said arms being one greater than the number of said connecting means and representing an extra arm being distinctly colored with respect to all other arms and all of said connecting means.
4 more elements
Dependencies are inferred from the claim text.