Stopcock for intravenous injections and infusion and direction of flow of fluids and gasses

• US 6,418,966 B2
• Filed: 12/12/2000
• Issued: 07/16/2002
• Est. Priority Date: 01/08/1998
• Status: Expired due to Fees

• Current Assignee: Biomedical Sales International, Inc.
• Original Assignee: George Loo
• Inventors: Loo, George
• Primary Examiner(s): FOX, JOHN C
• Application Number:
  US09/735,711
• Publication Number:
  US 20010013370A1
• Time in Patent Office: 581 Days
• Field of Search: 137/625.41, 137/625.47
• US Class Current: 137/625.47
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: Y10T 137/86566 Rotary plug
• CPC Class Codes: Y10T 137/86871 Plug

Abstract

A stopcock comprising having a body and a core. The body has a central chamber and a plurality of connectable ports formed therein that are in fluid communication with the central member. The core is rotatable sealed inside the central chamber. The core has a first cavity, an axially connectable port fluidly connected to the first cavity, and a second cavity formed to be fluidly connectable to two of the plurality of connectable ports in the body, when the core is in a first position. The first cavity is formed to fluidly connect the axially connectable port to one of the two connectable ports when the core is in a second position.

Claims

1. A rotatable core for use with a body to form a stopcock, the body having a central chamber for receiving the core and having entry and exit ports formed therein that are in fluid communication with the central chamber, the core comprising:

a first cavity;

an axially connectable port fluidly connected to the first cavity; and

a second cavity formed to be fluidly connectable to the entry and exit ports in the body when the core is in a first position;

wherein the first cavity is formed to fluidly connect the axially connectable port to the exit port when the core is in a second position;

wherein the second cavity is formed to be blocked from fluidly connecting the entry port of the body with the exit port of the body; and

wherein the entry and exit ports lie in a plane and the axially connectable port is perpendicular thereto.

2. A rotatable core for use with a body to form a stopcock, the body having a central chamber for receiving the core and having entry and exit ports formed therein that are in fluid communication with the central chamber, the core comprising:

a first cavity;

an axially connectable port fluidly connected to the first cavity; and

a second cavity formed to be fluidly connectable to the entry and exit ports in the body when the core is in a first position;

wherein the first cavity is formed to fluidly connect the axially connectable port to the exit port when the core is in a second position; and

wherein the entry and exit ports lie in a plane and the axially connectable port is perpendicular thereto.

3. The core of claim 2 wherein the second cavity is formed to be blocked from fluidly connecting the entry port of the body with the exit port of the body.

4. The core of claim 2 wherein the first cavity has a first length making an acute angle with the axially connectable port and a second length making an obtuse angle with the first length.

5. A rotatable core for use with a body to form a stopcock, the body having a central chamber for receiving the core and having entry and exit ports formed therein that are in fluid communication with the central chamber, the core comprising:

a first cavity;

an axially connectable port fluidly connected to the first cavity; and

a second cavity formed to be fluidly connectable to the entry and exit ports in the body when the core is in a first position;

wherein the first cavity is formed to fluidly connect the axially connectable port to the exit port when the core is in a second position;

wherein the second cavity is formed to be blocked from fluidly connecting the entry port of the body with the exit port of the body; and

wherein the first cavity has a first length making an acute angle with the axially connectable port and a second length making an obtuse angle with the first length.