Helically-reinforced tubes

Details Helically-reinforced tubes Helically-reinforced tubes

1998-11-23

2000-11-21

Lewis, Aaron J.

Surgery

Respiratory method or device

Respiratory gas supply means enters mouth or tracheotomy...

12820714, A61M 1600

Patent

active

061488186

ABSTRACT:
An endotracheal tube has a wall of PVC and a reinforcement filament of a harder plastics wound with a canted helical form so that adjacent turns of the filament slope at angles of 70.degree. and 80.degree. respectively in the plane of curvature of the tube.

REFERENCES:
patent: 4990143 (1991-02-01), Sheridan
patent: 5695482 (1997-12-01), Kaldany
patent: 5769828 (1998-06-01), Jonkman
patent: 5827242 (1998-10-01), Follmer et al.
patent: 5848223 (1998-12-01), Carlson
patent: 5976192 (1999-11-01), McIntyre et al.

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