The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2011
Filed:
Jun. 02, 2007
Applicants:
Allan Bruce Shang, Wake Forrest, NC (US);
Eugene William Moretti, Durham, NC (US);
Lewis Roger Hodgins, Cary, NC (US);
Inventors:
Allan Bruce Shang, Wake Forrest, NC (US);
Eugene William Moretti, Durham, NC (US);
Lewis Roger Hodgins, Cary, NC (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/00 (2006.01); A61M 16/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of detecting a level of anesthetic agent in an anesthesia vaporizer is disclosed. The anesthetic agent forms a column of liquid within an external indicator; the method projects a beam of light into the external indicator. The method further receives the beam of light after the beam of light has traveled through the column of liquid, and detects when the level of anesthetic agent drops below a predetermined level.