STOP COCK

• US 3,678,960 A
• Filed: 06/08/1970
• Issued: 07/25/1972
• Est. Priority Date: 06/08/1970
• Status: Expired due to Term

• Current Assignee: Saul Leibinsohn
• Original Assignee: Saul Leibinsohn
• Inventors: Leibinsohn, Saul
• Primary Examiner(s): Rosenthal, Arnold
• Application Number:
  US05/048,807
• Time in Patent Office: 778 Days
• Field of Search: 137/625.47 251/309
• US Class Current: 137/625.47
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: F16K 11/0833 having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
• CPC Class Codes: Y10S 251/904 Snap fit plug valves
• CPC Class Codes: Y10T 137/86871 Plug

Abstract

A stop cock type of device for selectively interconnecting a plurality of fluid-carrying ducts in a variety of configurations. The device includes a plurality of outstanding ports which selectively communicate with a rotatable central hub provided with a predetermined configuration of annular passageways which make possible the selection of any one of the variety of flow configurations depending upon the angular position of the valve with respect to the ports.

Claims

1. A stop cock device for use in the medical field for performing a number of fluid handling steps on a patient without unduly disturbing him, said device comprising:

a casing having an interior cavity, first, second and third inlet ports extending laterally from said interior cavity and communicating therewith, said first inlet port being adapted for connection to an apparatus for administering drugs and taking blood samples, said second inlet port being adapted for connection to an apparatus for administering infusions, and said third inlet port being adapted for connection into a patient undergoing medical treatment, with said first, second and third inlet ports being progressively separated, one from another, by 60*, a fourth outlet port extending radially from said interior cavity and communicating therewith adapted for connection to a pressure recording device, with said fourth outlet port being diametrically opposite said second inlet port and separated from said first and third inlet ports, respectively, by 120*;

said casing comprising substantially flat first and second end walls and a first substantially continuous wall joining said first and second end walls, each end wall having an aperture therein, aligned and concentric with the aperture in its opposed end wall, said apertures being adapted to receive a tapered plug member;

a tapered plug member rotatably mounted in said casing, positioned in said internal casing cavity, said plug having a thick body portion which gradually tapers into a relatively thin neck portion, said plug having internal passageway means aligningly cooperating with said first, second, third and fourth ports for sequentially establishing a plurality of different interconnecting conditions between said ports in response to rotation of said plug, one of said conditions being the absence of interconnection between any of said ports whereby said stop cock is in its completely closed condition, and another of said conditions being the interconnection of said fourth outlet port with said second inlet port and one of said first and third inlet ports representing a condition whereby the maximum number of ports in said four-port configuration are interconnected;

said reduced neck portion of said tapered plug member having a grooved annular seat adapted to receive a casing locking member to rotatably interlock said tapered plug in said casing, said tapered plug being rotatable within said casing through an angle of 360*;

a continuous, resilient, flexible peripheral ledge member mounted on the lip of said aperture in said second end wall adapted to sit in said grooved annular seat in said neck portion of said tapered plug to interlock said tapered plug member in said casing;

said internal passageway means in said tapered plug including a first passageway passing diametrically through said plug to interconnect said second and fourth ports in one rotatable plug position, and further including a second passageway communicating with said first passageway at the midpoint thereof and radially extending to the periphery of said tapered plug at an angle of 60* with respect to said diametric passageway in a direction to connect said second and fourth ports with said first port when in said one rotatable plug position.