Respiratory apparatus with improved flow-flattening detection

Details Respiratory apparatus with improved flow-flattening detection Respiratory apparatus with improved flow-flattening detection

2006-03-21

2006-03-21

Mitchell, Teena (Department: 3743)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S204180

Reexamination Certificate

active

07013893

ABSTRACT:
In a respiratory apparatus for treatment of sleep apnea and other disorders associated with an obstruction of a patient's airway and which uses an airflow signal, an obstruction index is generated which detects the flattening of the inspiratory portion of the airflow. The obstruction index is used to differentiate normal and obstructed breathing. The obstruction index is based upon different weighting factors applied to sections of the airflow signal thereby improving sensitivity to various types of respiration obstructions.

REFERENCES:
patent: 5245995 (1993-09-01), Sullivan et al.
patent: 5335654 (1994-08-01), Rapoport
patent: 5456264 (1995-10-01), Series et al.
patent: 5485851 (1996-01-01), Erickson
patent: 5490502 (1996-02-01), Rapoport et al.
patent: 5535738 (1996-07-01), Estes et al.
patent: 5535739 (1996-07-01), Rapoport et al.
patent: 5546933 (1996-08-01), Rapoport et al.
patent: 5549106 (1996-08-01), Gruenke et al.
patent: 5551419 (1996-09-01), Froehlich et al.
patent: 5645053 (1997-07-01), Remmers et al.
patent: 5645054 (1997-07-01), Cotner et al.
patent: 5704345 (1998-01-01), Berthon-Jones
patent: 5740795 (1998-04-01), Brydon
patent: 5803066 (1998-09-01), Rapoport et al.
patent: 5921942 (1999-07-01), Remmers et al.
patent: 5954050 (1999-09-01), Christopher
patent: 6029665 (2000-02-01), Berthon-Jones
patent: 6138675 (2000-10-01), Berthon-Jones
patent: 6213119 (2001-04-01), Brydon et al.
patent: 6273859 (2001-08-01), Remmers et al.
patent: 6286508 (2001-09-01), Remmers et al.
patent: 6299581 (2001-10-01), Rapoport et al.
patent: 6435182 (2002-08-01), Lutchen et al.
patent: 6814073 (2004-11-01), Wickham
patent: 197 060 92 (1998-08-01), None
patent: 651 971 (1995-05-01), None
patent: 1 004 325 (2000-05-01), None
patent: WO 97/28838 (1997-08-01), None
Schwartz, A.R., et al., “Effect of positive nasal pressure on upper airway pressure-flow relationships”, J. Appl. Physiol., pp. 1626-1634, 1989.
Smith, P.L., et al., “Upper airway pressure-flow relationships in obstructive sleep apnea”, J. Appl. Physiol., 64(2):789-95, 1988.
International Preliminary Examining Authority, PCT Written Opinion for International Application No. PCT/AU01/01048, Mar. 7, 2002, pp. 1-8, Australia Patent Office, AU.

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