Integrated crossing balloon catheter
First Claim
Patent Images
1. An integrated crossing balloon catheter comprising:
- a catheter shaft having a proximal end, a distal end, a proximal end portion proximate the proximal end, and a distal end portion proximate the distal end;
a hub assembly secured to the proximal end of the catheter shaft;
an inflatable balloon secured to the distal end of the catheter shaft; and
a stiffening tube positioned over the inflatable balloon and the distal end portion of the catheter shaft, the stiffening tube configured to be advanced through a vasculature with the catheter shaft as a unit;
wherein the stiffening tube is translatable along the catheter shaft within the vasculature from a first position in which a distal end of the inflatable balloon is within the stiffening tube to a second position in which a proximal end of the inflatable balloon is distal of the stiffening tube, wherein the stiffening tube includes an expandable region surrounding the inflatable balloon, wherein the expandable region includes a distensible material configured to expand radially outward when the inflatable balloon is inflated within the expandable region.
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Abstract
An integrated crossing balloon catheter. The catheter includes a hub assembly secured to the proximal end of the catheter shaft, an inflatable balloon secured to the distal end of the catheter shaft, and a stiffening tube positioned over the inflatable balloon and a distal end portion of the catheter shaft. The stiffening tube is configured to be advanced through a vasculature with the catheter shaft as a unit. The stiffening tube is translatable along the catheter shaft from a first position in which the inflatable balloon is within the stiffening tube to a second position in which the inflatable balloon is exposed from the stiffening tube.
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Citations
18 Claims
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1. An integrated crossing balloon catheter comprising:
- a catheter shaft having a proximal end, a distal end, a proximal end portion proximate the proximal end, and a distal end portion proximate the distal end;
a hub assembly secured to the proximal end of the catheter shaft;
an inflatable balloon secured to the distal end of the catheter shaft; and
a stiffening tube positioned over the inflatable balloon and the distal end portion of the catheter shaft, the stiffening tube configured to be advanced through a vasculature with the catheter shaft as a unit;
wherein the stiffening tube is translatable along the catheter shaft within the vasculature from a first position in which a distal end of the inflatable balloon is within the stiffening tube to a second position in which a proximal end of the inflatable balloon is distal of the stiffening tube, wherein the stiffening tube includes an expandable region surrounding the inflatable balloon, wherein the expandable region includes a distensible material configured to expand radially outward when the inflatable balloon is inflated within the expandable region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a catheter shaft having a proximal end, a distal end, a proximal end portion proximate the proximal end, and a distal end portion proximate the distal end;
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10. An integrated crossing balloon catheter system comprising:
- a catheter including an elongate shaft extending from a hub assembly at a proximal end of the catheter to an inflatable balloon at a distal end of the catheter, the catheter including an inflation lumen extending through the elongate shaft from the hub assembly to the inflatable balloon for delivering inflation fluid to the inflatable balloon;
a stiffening tube having a proximal end, a distal end and a length measured from the proximal end to the distal end, the stiffening tube surrounding the elongate shaft and in intimate contact with an outer surface of the elongate shaft along a majority of the length of the elongate shaft, the stiffening tube configured to be advanced through a vasculature with the catheter as a unit;
wherein the stiffening tube is translatable along the elongate shaft within the vasculature from a first position in which a distal end of the stiffening tube is positioned distal of the inflatable balloon to a second position in which the distal end of the stiffening tube is positioned proximal of the inflatable balloon, wherein the stiffening tube includes an expandable region surrounding the inflatable balloon, wherein the expandable region includes a distensible material configured to expand radially outward when the inflatable balloon is inflated within the expandable region. - View Dependent Claims (11, 12, 13, 14)
- a catheter including an elongate shaft extending from a hub assembly at a proximal end of the catheter to an inflatable balloon at a distal end of the catheter, the catheter including an inflation lumen extending through the elongate shaft from the hub assembly to the inflatable balloon for delivering inflation fluid to the inflatable balloon;
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15. An integrated crossing balloon catheter system comprising:
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a catheter including an elongate shaft extending from a hub assembly at a proximal end of the catheter to an inflatable balloon at a distal end of the catheter, the catheter including an inflation lumen extending through the elongate shaft from the hub assembly to the inflatable balloon for delivering inflation fluid to the inflatable balloon; and a stiffening tube having a proximal end, a distal end and a length measured from the proximal end to the distal end, the stiffening tube surrounding the elongate shaft and in intimate contact with an outer surface of the elongate shaft along a majority of the length of the elongate shaft, the stiffening tube configured to be advanced through a vasculature with the catheter as a unit; wherein the stiffening tube includes an expandable region, excluding the distal terminal end thereof, surrounding the inflatable balloon. - View Dependent Claims (16, 17, 18)
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Specification