Catheter assemblies and inner cannulae

Details Catheter assemblies and inner cannulae Catheter assemblies and inner cannulae

1997-11-03

2000-02-15

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

130110, 604280, A61M 500

Patent

active

060247304

ABSTRACT:
An inner cannula for a tracheostomy tube assembly is formed from a tubular member having two parallel rows of slots formed along its length and covered by a sheath of thin flexible material on the inside of the tubular member, so that the slots can freely open and close on flexing. The two rows of slots are separated from one another by two longitudinal regions uninterrupted by slots, which give the cannula axial rigidity.

REFERENCES:
patent: 4801297 (1989-01-01), Mueller
patent: 4852565 (1989-08-01), Eisele
patent: 5507751 (1996-04-01), Goode et al.

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