OCCLUSION BALLOON CATHETER WITH EXTERNAL INFLATION LUMEN
First Claim
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1. A balloon catheter having a distal region and a proximal region, the balloon catheter comprising:
- an elongate shaft extending from the distal region to the proximal region and defining a working lumen therebetween, the elongate shaft having a proximal end, a distal end, an inner surface, and an outer surface;
a hub assembly coupled to the proximal end of the elongate shaft, wherein the working lumen is in fluid communication with a lumen of the hub assembly;
an inflatable balloon disposed about a portion of the outer surface of the distal region of the elongate shaft such that the shaft extends through the balloon; and
an inflation component having an inner surface, an outer surface, and an inflation lumen in fluid communication with the balloon, wherein the inflation component is disposed longitudinally along the outer surface of the elongate shaft such that the outer surface of the inflation component is disposed adjacent the outer surface of the elongate shaft;
wherein the inflation component includes a proximal segment and a distal segment, the proximal segment including a metallic hypotube and the distal segment including a polymer tube.
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Abstract
Catheters such as guide catheters can be configured to provide distal occlusion, while still providing sufficient interior lumen space for device delivery. Such catheters can also provide a desired level of flexibility, yet can include sufficient column support. A catheter can include an elongate shaft with a lumen, an inflatable compliant balloon disposed over the distal region of the shaft, and an external inflation component.
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Citations
20 Claims
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1. A balloon catheter having a distal region and a proximal region, the balloon catheter comprising:
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an elongate shaft extending from the distal region to the proximal region and defining a working lumen therebetween, the elongate shaft having a proximal end, a distal end, an inner surface, and an outer surface; a hub assembly coupled to the proximal end of the elongate shaft, wherein the working lumen is in fluid communication with a lumen of the hub assembly; an inflatable balloon disposed about a portion of the outer surface of the distal region of the elongate shaft such that the shaft extends through the balloon; and an inflation component having an inner surface, an outer surface, and an inflation lumen in fluid communication with the balloon, wherein the inflation component is disposed longitudinally along the outer surface of the elongate shaft such that the outer surface of the inflation component is disposed adjacent the outer surface of the elongate shaft; wherein the inflation component includes a proximal segment and a distal segment, the proximal segment including a metallic hypotube and the distal segment including a polymer tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A balloon catheter having a distal region and a proximal region, the balloon catheter comprising:
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an elongate shaft extending from the distal region to the proximal region and defining a working lumen therebetween, the elongate shaft having a distal end, an inner surface, and an outer surface; an inflatable balloon disposed about a portion of the outer surface of the distal region of the elongate shaft such that the elongate shaft extends through the balloon; and an inflation component including a sleeve having an annular wall defined by an inner surface and an outer surface, wherein the radial distance between the inner surface of the sleeve and the outer surface of the sleeve defines a thickness of the annular wall; wherein the sleeve is disposed longitudinally about the outer surface of the elongate shaft and extends from the proximal region of the elongate shaft to the inflatable balloon, wherein the inner surface of the sleeve is spaced from the outer surface of the elongate shaft defining an annular inflation lumen in fluid communication with the balloon. - View Dependent Claims (11, 12, 13, 14)
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15. A guide catheter assembly comprising:
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an elongate shaft including a proximal end, a distal end, an outer surface, and an inner surface defining a lumen extending between the proximal end and the distal end; an inflation component having a proximal end, a distal end, and an inflation lumen extending therebetween, wherein the inflation component is disposed longitudinally adjacent to the outer surface of the elongate shaft; an inflatable balloon including a proximal end and a distal end, the proximal end of the balloon disposed about both the outer surface of the elongate shaft and the outer surface of the inflation component, the distal end of the balloon disposed about the outer surface of the elongate shaft; and wherein the inflation lumen of the inflation component is in fluid communication with an interior of the inflatable balloon. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification