Title:
NASAL CATHETER WITH INTERNAL AND EXTERNAL AIR FLOWS
Document Type and Number:
WIPO Patent Application WO2008063366
Kind Code:
B1
Abstract:
A nasally introduced catheter (nasal catheter) has a portion in which a user's breath (breathing air) air travels internally and a portion in which the breath travels externally. The portion in which air flow travels internally preferably includes a mesh or a whisk-like portion that expands and contracts, and the portion in which air flow travels externally preferably comprises a proximal tubular element having a sufficiently small cross-sectional area that at least 50% of the breathing air flows externally to the proximal portion. A sheath can optionally be positioned about the distal portion, and pulled back along the proximal portion to allow the distal portion to expand. In other aspects users can anchor the proximal and distal portions relative to the sheath using a nose clip or by removably coupling an extension arm to proximal portion.
Inventors:
DE SILVA BERTRAND (US)
MCINTEE BRIAN E (US)
SCHULTZ MICHAEL D (US)
MCINTEE BRIAN E (US)
SCHULTZ MICHAEL D (US)
Application Number:
PCT/US2007/023004
Publication Date:
September 12, 2008
Filing Date:
October 30, 2007
Export Citation:
Assignee:
RESPIRION INC (US)
DE SILVA BERTRAND (US)
MCINTEE BRIAN E (US)
SCHULTZ MICHAEL D (US)
DE SILVA BERTRAND (US)
MCINTEE BRIAN E (US)
SCHULTZ MICHAEL D (US)
International Classes:
A62B7/00
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