Medical device
First Claim
Patent Images
1. A medical device comprising:
- a balloon for location in a blood vessel,the balloon being inflatable between a collapsed configuration and an expanded configuration,wherein the balloon has an outer surface and wherein the balloon is provided with a varying cross section for assisting with a rotational alignment of the balloon within the blood vessel or a stent located within the blood vessel wherein the varying cross section comprises an indentation in the outer surface of the balloon wherein the balloon has an otherwise substantially circular cross-section, said indentation being in the outer surface of the balloon where that outer surface expands when the balloon is inflated from the collapsed configuration into the expanded configuration, such that in the expanded configuration, an expanded portion of the balloon comprises the indentation in the outer surface of the balloon.
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Accused Products
Abstract
A medical device includes an expandable element for location in a blood vessel. The expandable element is movable between a collapsed configuration and an expanded configuration. In the expanded configuration, at least a part of a longitudinal axis of the expandable element is curved in three-dimensional space. The medical device can be stent deployment device which includes an elongate catheter shaft and an inflatable balloon.
45 Citations
18 Claims
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1. A medical device comprising:
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a balloon for location in a blood vessel, the balloon being inflatable between a collapsed configuration and an expanded configuration, wherein the balloon has an outer surface and wherein the balloon is provided with a varying cross section for assisting with a rotational alignment of the balloon within the blood vessel or a stent located within the blood vessel wherein the varying cross section comprises an indentation in the outer surface of the balloon wherein the balloon has an otherwise substantially circular cross-section, said indentation being in the outer surface of the balloon where that outer surface expands when the balloon is inflated from the collapsed configuration into the expanded configuration, such that in the expanded configuration, an expanded portion of the balloon comprises the indentation in the outer surface of the balloon. - View Dependent Claims (2, 3, 4, 5, 17, 18)
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6. A method for treating a blood vessel, the method comprising the steps of:
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locating a balloon having an outer surface in the blood vessel, the balloon outer surface having a variation in cross section whereby the balloon is provided with a portion of varying cross section comprising an indentation in an otherwise substantially circular cross-section; inflating the balloon from a collapsed configuration to an expanded configuration; visualizing the portion of varying cross section in order to determine the rotational orientation of the portion; and rotating the balloon to rotationally align the balloon within the blood vessel or within a stent located within the blood vessel using the visualized portion having the varying cross section as a guide. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A medical device comprising:
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a balloon for location in a blood vessel; the balloon being inflatable between a collapsed configuration and an expanded configuration; wherein the balloon has an outer surface and opposite ends; and wherein the balloon outer surface is provided at each end thereof with a portion of varying cross section having first order rotational symmetry, wherein the portion of varying cross section comprises an indentation in an otherwise circular cross section of the balloon.
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16. A medical device comprising a balloon for location in a blood vessel;
- the balloon being inflatable between a collapsed configuration and an expanded configuration;
wherein, when the balloon is in the expanded configuration, a projection view of the cross section of the balloon where expanded includes a flat portion which forms an indentation in an outer surface of the balloon, the indentation being located in an otherwise circular cross section of the balloon, whereby the projection view varies as the balloon is rotated such that the rotational orientation of the balloon can be determined to enable the balloon to be correctly rotationally aligned within the blood vessel or a stent located within the blood vessel.
- the balloon being inflatable between a collapsed configuration and an expanded configuration;
Specification