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US 7,740,609 B2Granted
Balloon catheter
AssigneeBoston Scientific Scimed, Inc.
InventorsTodd Rowe, David Broman, Benjamin Gundale
Life of this patent
Estimating the term…
Abstract
A catheter assembly may comprise a guide catheter, a balloon catheter with a steering balloon and a stabilizing balloon and a guide wire. The stabilizing balloon secures the balloon catheter to the guide catheter while the steering balloon secures the catheter assembly to the vessel wall. In another embodiment, the balloon catheter has three balloons engaged to the exterior surface, a steering balloon, a stabilizing balloon and an anchoring balloon.
Claims24
A catheter system comprising
- a balloon catheter comprising a shaft and a guide wire, the shaft having a proximal end, a distal end region, and at least one inflation lumen, the shaft comprising a steering balloon and a stabilizing balloon,
- the steering balloon located at the distal end region, the steering balloon having an outer surface and a plurality of chambers, a portion of each of the plurality of chambers forming a portion of the outer surface of the steering balloon, the steering balloon having an expanded state, in the expanded state the outer surface of the steering balloon releasably engaging a wall of a body lumen, wherein the guide wire has an optimal position relative to an occlusion in the body lumen when the steering balloon is in the expanded state;
- the stabilizing balloon being located proximal to the steering balloon, the stabilizing balloon having an expanded state;
- and
- a guide catheter having a proximal end, a distal end, and an interior surface, the interior surface defining a lumen, the lumen having a diameter, the stabilizing balloon in the expanded state fixedly engaged to the interior surface of the guide catheter.
2 more elements
A method of treating an occlusion in a body lumen comprising:
- providing a catheter system, the catheter system comprising a balloon catheter having a proximal end, a distal end region, a guide wire, and at least one inflation lumen, the balloon catheter comprising a steering balloon located at the distal end region, the steering balloon having a plurality of chambers, a portion of each of the plurality of chambers forming a portion of the outer surface of the steering balloon, the balloon catheter further comprising a stabilizing balloon located proximal to the steering balloon, and a guide catheter having a proximal end, a distal end, and an interior surface;
- advancing the catheter system to the site of an occlusion;
- inflating the stabilizing balloon until the stabilizing balloon engages the guide catheter, preventing the movement of the balloon catheter relative to the guide catheter;
- and
- inflating the plurality of chambers of the steering balloon until the guide wire is in an optimal position relative to the occlusion.
2 more elements
A catheter system, the catheter system comprising a balloon catheter,
- the balloon catheter comprising a shaft, a guide wire, a stabilizing balloon, an anchoring balloon, and a steering balloon;
- the shaft comprising at least one inflation lumen, the at least one inflation lumen in fluid communication with the stabilizing balloon, the anchoring balloon and the steering balloon;
- the stabilizing balloon being engaged to the shaft, the stabilizing balloon being positioned proximal to the steering balloon, the stabilizing balloon having an expanded state, in the expanded state the stabilizing balloon being engaged to an interior surface of a guide catheter;
- the anchoring balloon being engaged to the shaft, the anchoring balloon being positioned distal to the stabilizing balloon and proximal to the steering balloon, the anchoring balloon having an expanded state, in the expanded state the anchoring balloon being engaged to a wall of a body lumen;
- the steering balloon being engaged to the shaft, the steering balloon being positioned distal to the anchoring balloon, the steering balloon having an outer surface and a plurality of chambers, a portion of each of the plurality of chambers forming a portion of the outer surface of the steering balloon, the steering balloon having an expanded state, in the expanded state the outer surface of the steering balloon being engaged to a wall of a body lumen;
- wherein the guide wire has an optimal position relative to an occlusion in a body lumen when the steering balloon is in the expanded state.
3 more elements
Dependencies are inferred from the claim text.