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:
May. 28, 2002
Filed:
Nov. 05, 1999
Mark R. Frye, Bloomington, IN (US);
J. Fred Brown, Overland Park, KS (US);
Douglas R. Leithauser, Carmel, IN (US);
Other;
Abstract
An oxygen-delivery system comprises a portable oxygen meter including a low-pressure oxygen inlet, a low-pressure oxygen outlet, and an exhale-inhale sensing port, an oxygen-supply source including a discharge outlet and configured to discharge low-pressure oxygen through the discharge outlet, a flexible supply tube arranged to conduct low-pressure oxygen from the oxygen-supply source into the portable oxygen meter through the low-pressure oxygen inlet, and a nasal cannula coupled to the low-pressure oxygen outlet and the exhale-inhale sensing port. The portable oxygen meter further includes a pneumatic demand oxygen conserver including a diaphragm valve member, control means coupled to the exhale-inhale sensing port for causing the diaphragm valve member to move to a flow-delivery position in response to inhalation of a patient and to a flow-blocking position in response to a lack of inhalation by the patient during exhalation through the nasal cannula, and an oxygen flow passage arranged to pass low-pressure oxygen through an oxygen flow-metering aperture to meter low-pressure oxygen outlet at a selected oxygen flow rate. The oxygen-delivery system further comprises a mount including a flange coupled to the portable oxygen meter and a clip adapted to be coupled to an item of clothing worn by the patient.