Rapid exchange type over-the-wire catheter

Details Rapid exchange type over-the-wire catheter Rapid exchange type over-the-wire catheter

1993-07-08

1995-05-09

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604283, 606194, A61M 2510, A61M 2900

Patent

active

054135591

ABSTRACT:
An intraluminal catheter, particularly a dilatation catheter for PTCA procedures, which is adapted for rapid exchange during an intraluminal procedure and which also allows for the exchange of the guidewire without loss of access to the intraluminal region about the distal end of the catheter. The catheter has a main guidewire lumen which extends essentially the length of the catheter and a guidewire extension lumen which extends proximally from the main guidewire lumen and is at least in part offset and parallel to the main guidewire lumen. A portion of the catheter shaft which defines at least part of the main guidewire lumen has a first slit from the proximal end of the catheter to the intersection between the extension lumen and the main guidewire lumen and a second lumen which extends from a proximal guidewire port in the guidewire extension lumen to a port in the distal end of the catheter. Also disclosed is an adapter having a slit which is continuous with the slit in the proximal extremity of the catheter shaft which facilitates separation of the guidewire and the catheter when the adapter is fixed to the proximal end of the catheter shaft.

REFERENCES:
patent: 4988356 (1991-01-01), Crittenden et al.
patent: 5045061 (1991-09-01), Seifert et al.
patent: 5135535 (1992-08-01), Kramer
patent: 5154725 (1992-10-01), Leopold
patent: 5171222 (1992-12-01), Euteneuer et al.
patent: 5217482 (1993-06-01), Keith
patent: 5219332 (1993-06-01), Nelson et al.
patent: 5263932 (1993-11-01), Jang

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