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:
Jul. 04, 1978
Filed:
Sep. 25, 1975
Jeffrey L Stewart, Brookfield, CT (US);
Bio-Med Devices Inc., Stamford, CT (US);
Abstract
A respirator is described wherein a plurality of pneumatic bistable elements are employed in an automatically operated pneumatic circuit. A constant inspiratory to expiratory ratio pneumatic circuit is provided to simplify respirator control. A demand sensing circuit interrupts an oscillator to commence an inspiratory phase in response to pressure changes introduced in a patient gas supply circuit. A manual control is provided to enable manual dispensing of respiratory support. A pneumatic circuit is provided for generating an end inspiratory plateau period. During this period gas equilibration in different compartments of the lung is permitted and in addition a measurement of peak intraalveolar pressure is made.