Axial lengthening thrombus capture system
First Claim
Patent Images
1. A clot capture system, comprising:
- a shape memory tubular body comprising a first end, a second end, and an axial length therebetween, the first end having an opening,wherein the shape memory tubular body is transformable to a first expanded configuration in which the first end is expanded but the second end and a majority of the shape memory tubular body is compressed, wherein the shape memory tubular body is folded between the first end and the second end, wherein the shape memory tubular body has a first expanded axial length in the first expanded configuration,wherein the shape memory tubular body is transformable to a second expanded configuration in which the shape memory tubular body has a second expanded axial length greater than the first expanded axial length, wherein a width of the opening in the first expanded configuration is substantially the same as the width of the opening in the second expanded configuration.
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Abstract
Systems and methods can remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system for the treatment of pulmonary embolism (PE), deep vein thrombosis (DVT), cerebrovascular embolism, and other vascular occlusions.
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Citations
19 Claims
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1. A clot capture system, comprising:
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a shape memory tubular body comprising a first end, a second end, and an axial length therebetween, the first end having an opening, wherein the shape memory tubular body is transformable to a first expanded configuration in which the first end is expanded but the second end and a majority of the shape memory tubular body is compressed, wherein the shape memory tubular body is folded between the first end and the second end, wherein the shape memory tubular body has a first expanded axial length in the first expanded configuration, wherein the shape memory tubular body is transformable to a second expanded configuration in which the shape memory tubular body has a second expanded axial length greater than the first expanded axial length, wherein a width of the opening in the first expanded configuration is substantially the same as the width of the opening in the second expanded configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16)
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13. A clot capture system, comprising:
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a shape memory tubular body comprising a first end, a second end, and an axial length therebetween, the first end having an opening, wherein the shape memory tubular body is transformable to a first expanded configuration in which the first end is expanded and the second end is compressed within a delivery instrument, wherein the shape memory tubular body comprises a fold between the first end and the second end, wherein the tubular body has a first expanded axial length in the first expanded configuration, wherein the shape memory tubular body is configured to invert, evert, or roll out with respect to the delivery instrument to a second expanded configuration in which the shape memory tubular body has a second expanded axial length greater than the first expanded axial length.
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17. A clot capture system, comprising:
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a shape memory tubular body comprising a first end, a second end, and an axial length therebetween, the first end having an opening, wherein the shape memory tubular body is transformable to a first expanded configuration in which the first end is expanded but the second end is compressed, wherein the shape memory tubular body comprises a fold between the first end and the second end, wherein the tubular body has a first expanded axial length in the first expanded configuration, wherein the shape memory tubular body is transformable to a second expanded configuration in which the shape memory tubular body has a second expanded axial length greater than the first expanded axial length, and an expanding guide element configured to receive the shape memory tubular body. - View Dependent Claims (18, 19)
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Specification