Method of placing a cannula

Details Method of placing a cannula Method of placing a cannula

1999-06-09

2000-09-19

Coggins, Wynn Wood

Surgery

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

Treating material introduced into or removed from body...

604510, A61M 3100

Patent

active

061204943

ABSTRACT:
A cannula assembly for insertion in a blood vessel includes a cannula and a dilator. The cannula has a proximal end, a distal end, and a lumen extending therebetween. The dilator, which is telescopically received in the lumen of the cannula, includes proximal and distal ends, a passage extending between the proximal and distal ends, and a dilator tip disposed at the distal end. The cannula assembly further includes a needle and a guide wire disposed within the passage of the dilator. The dilator tip has an opening formed therein for receiving one of the needle and guide wire. The dilator tip is configured to limit insertion of the needle in the blood vessel.

REFERENCES:
patent: 4629450 (1986-12-01), Suzuki et al.
patent: 4978334 (1990-12-01), Toye et al.
patent: 4995866 (1991-02-01), Amplatz et al.
patent: 5057083 (1991-10-01), Gellman
patent: 5190528 (1993-03-01), Fonger et al.

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