EVACUATED AIR CHAMBER

• US 20120226183A1
• Filed: 08/30/2011
• Published: 09/06/2012
• Est. Priority Date: 08/30/2010
• Status: Abandoned Application

• Current Assignee: Quinton Instrument Company
• Original Assignee: Quinton Instrument Company
• Inventors: Hamilton, Steven D., Ross, Katherine M., CHRISTMAN, NORBERT JOHN THOMAS
• Application Number:
  US13/221,446
• Publication Number:
  US 20120226183A1
• Time in Patent Office: Days
• US Class Current: 600/543
• CPC Class Codes: A61B 5/082 Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath A61B5/083, A61B5/091 take precedence
• CPC Class Codes: A61B 5/097 Devices for facilitating collection of breath or for directing breath into or through measuring devices
• CPC Class Codes: G01N 33/497 of gaseous biological material, e.g. breath

Abstract

An improved evacuated air chamber having a plurality of generally flat exterior walls, a closed end, and an open end wherein the open end is provided with a resealable stopper and septum; an impervious disc may be provided between the septum and the tube interior.

Claims

1. An evacuated air chamber having a plurality of generally flat exterior walls, a hollow elongated evacuated interior, a first, closed end, and a second, open end, wherein said second end is provided with a resealable stopper member normally enclosing said second end.

2. The chamber of claim 1, wherein said stopper member further includes a pierceable septum member and an impervious disc member, said disc being positioned between the septum member and said interior.

3. The chamber of claim 1 wherein said evacuated interior includes an interior wall surface, said interior wall surface having a polygonal cross section.

4. The chamber of claim 1 wherein said evacuated interior includes an interior wall surface, said interior wall surface having an arcuate cross section.

5. The chamber of claim 1 wherein at least one of said plurality of exterior walls includes a depression.