Intravascular catheter

Details Intravascular catheter Intravascular catheter

1997-03-24

1998-06-09

Bockelman, Mark

Surgery

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

Treating material introduced into or removed from body...

604175, A61M 500

Patent

active

057626367

ABSTRACT:
A catheter includes an inner cannula formed of a soft flexible stretchable biocompatible material and attached to a needle on a hub at the proximal end thereof. The inner cannula is slidably journaled through an outer cannula formed of the same biocompatible material, the inner cannula projecting outwardly out of the distal end of the outer cannula. The outer cannula proximal end is connected to the hub by a tube of heat shrinkable material. Three collars are mounted on the projecting portion of the inner cannula, the distal collar clamped in position to prevent slidable movement of the intermediate and proximal collars off of inner cannula, and the intermediate and proximal collars slidably mounted on the inner cannula.

REFERENCES:
patent: 4366817 (1983-01-01), Thomas
patent: 4840613 (1989-06-01), Balbierz

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