Balloon catheter with expandable wire lumen
AssigneeBoston Scientific Scimed, Inc.
InventorMartin Willard
Life of this patent
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Abstract
A catheter comprises an outer shaft and an inner shaft defining a balloon inflation lumen for transport of an inflation fluid therethrough. The expandable balloon has a proximal waist portion and a distal waist portion with a body portion there between. The balloon is engaged to a distal region of the outer shaft and defines an exterior and an interior where the interior is in fluid communication with the balloon inflation lumen. The inner shaft has an inner shaft wall defining a guidewire lumen for passage of a guidewire. A distal portion of the inner shaft is expandable from an unexpanded state to an expanded state such that in the expanded state the guidewire lumen has a greater cross-sectional area than in the unexpanded state.
Claims30
A catheter comprising:
- an outer shaft and an inner shaft, the outer shaft and inner shaft defining a balloon inflation lumen for transport of an inflation fluid therethrough,
- an expandable balloon having a proximal waist portion and a distal waist portion with a body portion there between, the balloon being engaged to a distal region of the outer shaft, the balloon defining an exterior and an interior, the interior being in fluid communication with the balloon inflation lumen
- the inner shaft having an inner shaft wall defining a guidewire lumen for passage of a guidewire, a distal portion of the inner shaft being expandable from an unexpanded state to an expanded state, in the expanded state the guidewire lumen having a greater cross-sectional area than in the unexpanded state.
A catheter comprising:
- an outer shaft and an inner shaft, the inner shaft having an inner shaft wall defining a guidewire lumen for passage of a guidewire, a distal portion of the inner shaft being expandable from an unexpanded state to an expanded state, in the expanded state the guidewire lumen having a greater cross-sectional area than in the unexpanded state.
Dependencies are inferred from the claim text.