Vascular dilating catheter

Details Vascular dilating catheter Vascular dilating catheter

1996-07-30

1998-05-26

McDermott, Corrine M.

Surgery

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

Treating material introduced into or removed from body...

606194, A61M 2900

Patent

active

057557071

ABSTRACT:
A vascular dilating catheter comprising an outer tube, an inner tube and a connector, wherein said connector comprises an inlet for injecting a balloon distending solution and an inlet for insertion of a guidewire into the inner tube; the inner tube is inserted into the outer tube; and the outer tube having flexibility at a distal end side and rigidity at a proximal end side is provided with a balloon at the distal end portion thereof, the outer tube being adhered to the inner tube at the position enclosed by the balloon, and the outer tube having, between the proximal end of the balloon and the site of adhesion to the inner tube, a through-hole which connects the inner cavity of the balloon and a circular lumen formed as a gap between the outer tube and the inner tube. According to the catheter of the present invention, various forces applied to the proximal end of the catheter can be directly and positively transmitted to the distal end portion of the catheter. In addition, the distal end portion of the catheter has a suitable bending strength, and the catheter of the present invention is devoid of bending or twisting of the balloon, or snapping of the distal end portion.

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patent: 5549551 (1996-08-01), Peacock, III et al.

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