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:
Sep. 21, 2010
Filed:
Apr. 20, 2007
William A. Sirokman, Kirkland, WA (US);
William A. Sirokman, Kirkland, WA (US);
Spiration, Inc., Redmond, WA (US);
Abstract
A device according to an aspect of the invention includes an air escapement conduit having an inlet port providing air communication with a chest cavity and an outlet port providing air communication with a vacuum source, the conduit allowing an air flow from the inlet port to the outlet port in response to a pressure differential between the ports, and a detector responsive to the air flow that provides a signal related to the air flow. The device may include an indicator device operable to provide evacuation information in response to the signal. The air escapement conduit may include a bubble chamber or a valving mechanism. The detector may be a pressure differential sensor operable to detect a difference in air pressure between the inlet port and the outlet port, and generate a signal related to the difference.