Low-profile single-lumen dual-balloon catheter with integrated guide wire for embolectomy dilatation/occlusion and delivery of treatment fluid
First Claim
1. A single-lumen dual-balloon catheter and guide wire combination for dilatation, occlusion, and infusion of treatment fluid, said catheter comprising:
- a flexible small diameter guide wire having a valving portion adjacent to a distal end thereof;
a flexible elongated tubular shaft having a proximal end and a distal end portion terminating in a distal end, said distal end portion including an expandable proximal balloon and an expandable distal balloon spaced axially from said proximal balloon by a waist portion therebetween, a single axially extending fluid conducting lumen adapted to receive said guide wire extending through said shaft in fluid communication with each balloon, said waist portion defining at least one perforation opening from said lumen outwardly thereon, and both said proximal balloon and said distal balloon having a respective distal orifice coaxially aligned with said lumen and adapted to receive said guide wire, each of said distal orifices being provided with means for releasably engaging in sealing relationship with said valving portion of said guide wire.
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Accused Products
Abstract
A fully exchangeable low-profile single-lumen dual-balloon catheter for embolectomy, dilatation, occlusion, and infusion of treatment fluid, and having an integrated guide wire, includes a flexible small diameter guide wire provided with an distal end valving portion of comparatively enlarged diameter and a flexible elongated tubular shaft with a pair of expandable balloons spaced apart on opposite sides of a waist portion which waist portion includes an infusion section with a perforation in fluid communication with the lumen. The fluid conducting lumen is adapted to perform multiple functions in conjunction with movements of the guide wire converting the catheter to one of several modes of operation by sealing cooperation of the guide wire valving portion with seal portions of the catheter shaft.
232 Citations
21 Claims
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1. A single-lumen dual-balloon catheter and guide wire combination for dilatation, occlusion, and infusion of treatment fluid, said catheter comprising:
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a flexible small diameter guide wire having a valving portion adjacent to a distal end thereof; a flexible elongated tubular shaft having a proximal end and a distal end portion terminating in a distal end, said distal end portion including an expandable proximal balloon and an expandable distal balloon spaced axially from said proximal balloon by a waist portion therebetween, a single axially extending fluid conducting lumen adapted to receive said guide wire extending through said shaft in fluid communication with each balloon, said waist portion defining at least one perforation opening from said lumen outwardly thereon, and both said proximal balloon and said distal balloon having a respective distal orifice coaxially aligned with said lumen and adapted to receive said guide wire, each of said distal orifices being provided with means for releasably engaging in sealing relationship with said valving portion of said guide wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A low-profile single-lumen dual-balloon catheter for use in conjunction with a flexible, small diameter guide wire having a distal end valving portion of comparatively enlarged diameter, said catheter comprising:
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a flexible elongate tubular shaft having a proximal end and a distal end portion terminating at a distal end, and at least one axially extending fluid conducting lumen adapted to receive said guide wire extending therethrough; and an axially spaced apart pair of expandable balloons relatively located proximally and distally of one another in said distal portion adjacent said distal end of said tubular shaft in fluid communication with said lumen and each balloon having a respective distal orifice coaxially aligned with said lumen and adapted to receive said guide wire, said distal orifice of each balloon being provided with means for releasably engaging in sealing relationship said enlarged diameter distal end valving portion of said guide wire. - View Dependent Claims (14, 15, 16)
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17. A low-profile single-lumen dual-balloon catheter and guide wire combination comprising:
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a flexible, small diameter guide wire having proximal and distal ends, with a valving portion of said distal end being of a larger diameter than the remainder of said guide wire; a flexible elongate tubular shaft having a proximal end and a distal end and a single axially extending fluid conducting lumen adapted to receive said guide wire extending therethrough; and a pair of axially spaced apart balloons each in fluid communication with said lumen and disposed in proximal and distal relative position, a waist portion of said catheter between said balloons including a perforate infusion portion having at least one perforation opening from said lumen outwardly on said catheter between said balloons, each one of said pair of balloons having a respective distal end coaxially aligned with said lumen and adapted to receive said guide wire, each of said distal ends being provided with means for releasably engaging said enlarged diameter distal end portion of said guide wire in sealing relationship. - View Dependent Claims (18, 19, 20, 21)
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Specification