Multi-way cock

• US 5,074,334 A
• Filed: 07/27/1990
• Issued: 12/24/1991
• Est. Priority Date: 07/27/1989
• Status: Expired due to Term

• Current Assignee: Terumo Kabushiki Kaisha
• Original Assignee: Terumo Kabushiki Kaisha
• Inventors: Onodera, Tsuneyoshi
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): Bockelman, Mark
• Application Number:
  US07/558,493
• Time in Patent Office: 515 Days
• Field of Search: 604/248, 604/246, 604/32, 604/35, 604/27, 137/625.41, 137/625.46, 137/625.47
• US Class Current: 137/625.41
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: F16K 11/0853 having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
• CPC Class Codes: Y10T 137/86823 Rotary valve

Abstract

A multi-way cock comprises a housing including a cylinder having a plurality of branch tubes extending from the periphery thereof, and a plug including a barrel adapted to be rotatably fitted in the cylinder and having a corresponding plurality of channels formed therein, the channels corresponding to the branch tubes in assembled condition. The barrel is formed of a polyester elastomer.

Claims

1. A multi-way cock comprising

a housing including a cylindrical portion having a plurality of branch tubes extending from the outer periphery thereof, and

a plug including a barrel adapted to be rotatably fitted in the cylindrical portion of said housing and having a corresponding plurality of channels formed therein, said channels corresponding to said branch tubes in assembled condition, wherein said barrel is formed of a polyester elastomer having the formula:

##STR3## wherein n is a number ranging from 1 to 50, m is a number ranging from 1 to 5, p is a number ranging from 1 to 8, q is a number ranging from 1 to 8, and x is a number ranging from 5 to 50.

2. The cock of claim 1 wherein said polyester elastomer has a modulus in flexure of at least 800 kgf/cm².

3. The cock of claim 1 wherein said housing is formed of a rigid resin.

4. The cock of claim 1 wherein the openings that said channels define at the outer periphery of said barrel have a diameter of 1.5 to 5 mm.

5. The cock of claim 1 wherein said plug includes a lever for turning the plug in the housing, and the outer surface of said lever is entirely or partially coated with a resin which is different in color and/or appearance from the barrel-forming elastomer.

6. The cock of any one of claims 1 to 5 which is a three-way cock.

7. The cock of any one of claims 1 to 5 which is useful in the medical field.