Convertible catheter and the like

Details Convertible catheter and the like Convertible catheter and the like

1998-05-22

1999-07-06

Coggins, Wynn Wood

Surgery

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

Treating material introduced into or removed from body...

604170, 604282, 606194, A61M 2900

Patent

active

059191643

ABSTRACT:
A stylet and hub assembled for stiffening a catheter in rapid exchange mode. The catheter guidewire lumen has a side port associated with a bi-stable guide element that lies across the lumen. A disengageable feature assembly limits insertion of the stylet into the lumen in rapid exchange mode. To convert from rapid exchange mode, disengagement of the disengageable feature enables the stylet to displace the guide element, clearing the guidewire lumen and enabling guidewire or other device to extend throughout the lumen. The stylet has a long proximal portion, a relatively short portion tapering distally to a smaller diameter, and enlarged end. The guide element is formed by plastic deformation of the catheter wall. The disengageable feature is in a removable housing having an end cap that can be replaced with a syringe for flushing liquid along the stylet. A balloon, preferably a PTCA balloon, is mounted on the catheter.

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