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US 2025/0152391 A1Published application
Balloon expandable endoprosthesis
AssigneeW. L. Gore & Associates, Inc.
InventorsJane K. Bohn, Cody L. Hartman, Deenu G. Kanjickal, Bret J. Kilgrow, Joseph B. Koenig, James J. Nickerson, Thomas G. Triebes
Life of this patent
Estimating the term…
Abstract
An improved medical device reduces the loss of longitudinal length during expansion of a stent-graft from a compressed state to an expanded state. For example, the stent-graft is placed over a cover that provides resistance to expansion of the balloon during inflation, which reduces longitudinal compressing forces exerted on the stent-graft.
Claims20
A delivery assembly comprising:
- a balloon catheter including,
- a catheter body having a first end and extending distally to a second end, the catheter body having an inflation lumen, and
- an expandable balloon in fluid communication with the inflation lumen, the balloon having a proximal portion with a proximal end and a distal portion with a distal end, the proximal end being disposed distal the first end of the catheter body and the distal end being disposed proximal the second end of the catheter body;
- a retention member disposed at the distal portion of the expandable balloon, the retention member exerting resistance to expansion on the balloon to control an expansion profile of the expandable balloon;
- and
- a medical implant disposed about the expandable balloon, the medical implant having a tubular body comprising a plurality of expandable segments, the medical implant being movable between a collapsed configuration and an expanded configuration via expansion of the balloon.
3 more elements
An assembly comprising:
- a balloon catheter including,
- a catheter body having a first end, a second end, and a lumen extending therebetween, and
- an expandable balloon coupled at the second end of the catheter body, the balloon having a proximal portion defining a proximal end of the expandable balloon, a distal portion defining a distal end of the balloon, and an intermediate portion extending between the proximal and distal portions;
- a cover having a resistance to dilation and disposed about a portion of the expandable balloon to enhance resistance against expansion of the portion of the expandable balloon, such that the cover controls an expansion profile of the expandable balloon;
- and
- a medical device disposed about the cover and having a tubular body comprising a plurality of expandable segments, the medical device being movable between a collapsed configuration and an expanded configuration upon exceeding a radial force resistance of the medical device.
3 more elements
A method of treatment comprising:
- delivering a medical device to a treatment area of a patient using a delivery assembly including a delivery catheter, a balloon coupled to the delivery catheter, and a cover surrounding at least a portion of the balloon, the medical device being mounted to a middle portion of the balloon;
- and
- inflating the balloon to expand the medical device from a collapsed, delivery configuration to an intermediate expanded configuration, the cover controlling the expansion profile of the balloon during inflation such that the cover resists expansion of end portions of the balloon to reduce a difference in diameter between the end portions and the middle portion of the balloon.
Dependencies are inferred from the claim text.