Stopcock having axial port for syringe twist actuation

• US 6,457,488 B2
• Filed: 10/02/2001
• Issued: 10/01/2002
• 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
• Application Number:
  US09/969,399
• Publication Number:
  US 20020017328A1
• Time in Patent Office: 364 Days
• Field of Search: 222/144.5, 222/326, 222/327, 222/386, 222/387, 137/625.47, 137/597
• US Class Current: 137/625.47
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/16881 Regulating valves on-off valves, e.g. clamps A61M39/28
• CPC Class Codes: F16K 11/085 with cylindrical plug
• CPC Class Codes: Y10T 137/86871 Plug

Abstract

A stopcock including a stopcock body including a central axial opening, and first and second stopcock luer connectors extending radially and in fluid communication with the central axial opening. The stopcock includes a stopcock core axially disposed within the central axial opening. The stopcock core includes an engagement end axially connectable with a syringe, an axial port formed at the engagement end for fluidly communicating with the syringe, a first radial port, and a first passage extending between the axial port and the first radial port. The stopcock core has a first position with the first radial port in fluid communication with the first stopcock luer connector. The stopcock core has a second position with the first radial port in fluid communication with the second stopcock luer connector. The core is rotatable from the first position to the second position upon the syringe being axially rotated.

Claims

1. A stopcock for use with a syringe, the stopcock comprising:

a stopcock body including;

a central axial opening formed in the stopcock body;

a first stopcock luer connector extending radially from the stopcock body and in fluid communication with the central axial opening; and

a second stopcock luer connector extending radially from the stopcock body and in fluid communication with the central axial opening; and

a stopcock core axially disposed within the central axial opening, the stopcock core including;

an engagement end axially connectable with the syringe;

an axial port formed at the engagement end for fluidly communicating with the syringe;

a first radial port formed in the stopcock core; and

a first passage formed in the stopcock core extending between the axial port and the first radial port; and

wherein the stopcock core has a first position with the first radial port in fluid communication with the first stopcock luer connector; and

wherein the stopcock core has a second position with the first radial port in fluid communication with the second stopcock luer connector, the stopcock core is rotatable from the first position to the second position upon the syringe upon being axially connected to the engagement end and axially rotated.

2. The stopcock of claim 1 wherein the stopcock core has a second radial port and a third radial port formed in the stopcock core, and a second passage formed in the stopcock core extending between the second radial port and the third radial port.

3. The stopcock of claim 2 wherein the third radial port is disposed opposite the second radial port.

4. The stopcock of claim 2 wherein the first radial port is disposed perpendicular to the second and third radial ports.

5. The stopcock of claim 2 wherein the second radial port is in fluid communication with the second stopcock luer connector with the stopcock core in the first position.

6. The stopcock of claim 2 wherein the stopcock body has a third stopcock luer connector extending radially from the stopcock body and in fluid communication with the central axial opening, the third radial port is in fluid communication with the third stopcock luer connector with the stopcock core in the first position.

7. The stopcock of claim 1 wherein the engagement end is a female connector, and the syringe has a male connector for engaging the engagement end in fluid communication.

8. The stopcock of claim 1 wherein the engagement end is threadedly connectable with the syringe.

9. The stopcock of claim 1 wherein the first stopcock luer connector is a male connector.

10. The stopcock of claim 1 wherein the second stopcock luer connector is a female connector.