Spirometer breathing tube with compound membrane
AssigneeRostrum Medical Innovations Inc.
InventorsFouad Halwani, Nathan Ayoubi, Jose Ganseman, Judy Findlay, Thomas Lloyd Bellaire, Ian Brodkin, Arthur Willms, Victor Dosil, Awni Ayoubi
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Abstract
A compound membrane breathing tube for use in spirometric applications is provided. The compound membrane comprises a first sheet and a second sheet of flexible sheeting connected together along the periphery thereof, and each of the sheets has an opening cut therethrough to create a flap. The flap of the first sheet overlaps the flap of the second sheet so as to present a higher relative resistance to airflow through the breathing tube at lower airflows.
Claims8
A compound membrane for use in a spirometer breathing tube, the compound membrane comprising a first sheet and a second sheet of flexible sheeting connected together along a periphery thereof, wherein each of said first and second sheets defines a respective opening therethrough configured as a respective flap, and wherein the flap of the first sheet overlaps the flap of the second sheet.
Dependencies are inferred from the claim text.