公开(公告)号：AU7594896A

公开(公告)日：1997-04-17

申请号：AU7594896

申请日：1996-09-27

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： FRYE MARK R ,  GRENAWAY JOHN R ,  DAVIS RICHARD A ,  LEITHAUSER DOUGLAS R

IPC: A61M16/00 ,  A61M16/06 ,  A61M16/20

Abstract: PCT No. PCT/US96/15549 Sec. 371 Date Apr. 28, 1997 Sec. 102(e) Date Apr. 28, 1997 PCT Filed Sep. 27, 1996 PCT Pub. No. WO97/11734 PCT Pub. Date Apr. 3, 1997An apparatus is provided for controlling discharge of oxygen from an oxygen supply source to a patient. The apparatus includes an oxygen supply inlet, a pressure regulator coupled to the oxygen supply inlet and configured to reduce pressure of oxygen received from the oxygen supply inlet to a selected magnitude, a flow controller coupled to the pressure regulator and configured to meter oxygen received from the pressure regulator at a selected flow rate, and an oxygen distribution assembly including a pneumatic demand oxygen valve and a conduit conducting oxygen discharged from the flow controller through the pressure regulator to the pneumatic demand oxygen valve for delivery to a patient. The flow controller includes a chamber and a rotary valve for splitting oxygen discharged from the chamber into a first stream in an oxygen supply passageway for use by a patient and a second stream in a diaphragm supply passageway for controlling operation of pneumatic demand oxygen valve.