GANSEMAN, JOSE,AYOUBI, AWNI,AYOUBI, NATHAN,BELLAIRE, THOMAS,BRODKIN, IAN,DOSIL, VICTOR,FINDLAY, JUDY,HALWANI, FOUAD,WILLMS, ARTHUR
申请号：
CA2803645
公开号：
CA2803645A1
申请日:
2011.06.29
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
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.
