Catheter shaft designs
First Claim
1. A catheter comprising:
- a hypotube defining a first lumen and having proximal and distal ends, and proximal, intermediate, and distal portions disposed between the proximal and distal ends;
an inflation tube with distal and proximal ends, wherein the proximal end of the inflation tube is bonded to the intermediate portion of the hypotube and a portion of the inflation tube is disposed over the distal portion of the hypotube such that the portion of the inflation tube overlaps the distal portion of the hypotube, forming a second lumen therebetween; and
a guidewire tube with a proximal end, a distal end, and an outer surface extending from the proximal end to the distal end, the proximal end forming a guidewire port, the guidewire tube extending through an opening in the hypotube and distally through the hypotube, forming a guidewire lumen;
wherein the second lumen extends radially outward from an outer surface of the distal portion of the hypotube to an inner surface of the portion of the inflation tube overlapping the distal portion of the hypotube.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a balloon catheter that can comprise an elongate support member, an inflation tube, a guidewire tube and a balloon. The guidewire tube can define a guidewire port at its proximal end, and can extend from the port through an opening in a wall of the elongate support member and distally through a first lumen of the elongate support member, in some cases to the distal end of the catheter. The inflation tube can be disposed over a distal portion of the elongate support member, a portion of the guidewire tube, a portion of the inner assembly, or any combination thereof, forming a second lumen. The distal end of the balloon can be attached to the guidewire tube and the proximal end of the balloon can be attached to the inflation tube. The inside of the balloon can be in fluid communication with the first lumen and with the second lumen, allowing the balloon to be inflated and/or deflated. The elongate support member can also have cuts in it. For example, the elongate support member can have apertures formed in it, or apertures and spiral cuts.
100 Citations
36 Claims
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1. A catheter comprising:
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a hypotube defining a first lumen and having proximal and distal ends, and proximal, intermediate, and distal portions disposed between the proximal and distal ends; an inflation tube with distal and proximal ends, wherein the proximal end of the inflation tube is bonded to the intermediate portion of the hypotube and a portion of the inflation tube is disposed over the distal portion of the hypotube such that the portion of the inflation tube overlaps the distal portion of the hypotube, forming a second lumen therebetween; and a guidewire tube with a proximal end, a distal end, and an outer surface extending from the proximal end to the distal end, the proximal end forming a guidewire port, the guidewire tube extending through an opening in the hypotube and distally through the hypotube, forming a guidewire lumen; wherein the second lumen extends radially outward from an outer surface of the distal portion of the hypotube to an inner surface of the portion of the inflation tube overlapping the distal portion of the hypotube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A catheter comprising:
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a hypotube having a proximal end, a distal end, a first lumen extending from the proximal end through the distal end, a proximal portion, a distal portion, and an intermediate portion disposed between the proximal and distal portions; an inflation tube having a proximal end and a distal end; wherein the proximal end of the inflation tube is bonded to the intermediate portion of the hypotube to define a bonding region; wherein at least a portion of the inflation tube distal of the bonding region is disposed about and spaced radially from the distal portion of the hypotube, thereby forming a second lumen surrounding the distal portion of the hypotube; and a guidewire tube having a proximal end, a distal end, and a guidewire lumen extending therethrough, the proximal end forming a guidewire port; wherein the guidewire tube extends through an opening in a sidewall of the hypotube and distally through the hypotube. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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Specification