Tapered and reinforced catheter

Details Tapered and reinforced catheter Tapered and reinforced catheter

1996-09-19

1998-11-03

Buiz, Michael Powell

Surgery

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

Treating material introduced into or removed from body...

604284, A61M 2500

Patent

active

058301968

ABSTRACT:
A tapered single or multi-lumen catheter having an elongated cylindrical tube for injection and removal of fluid is provided with generally constant or gradually increasing diameter internal lumen or lumens which are connected to a tip portion which may be a conical tapered tip that smoothly merges with the cylindrical surface of the tube so that insertion trauma and the possibility of kinking are minimized. The catheter body is generally formed of proximal and distal portions wherein the proximal portion preferably includes a portion which increases in external diameter in the proximal direction to provide a strain relief for the intersection of the catheter body and the hub member of the catheter. The portion of the catheter body which increases in diameter may also include one or more lumens therein which similarly increase in diameter to increase the flow of fluid therethrough or which are of constant diameter such that the outer wall of the catheter body increases in thickness therealong to increase the columnar strength of the catheter body therealong.

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