Method of producing low profile stent and graft combination
First Claim
1. A method of compacting an endoprosthesis into a compacted dimension comprisingproviding a self-expanding endoprosthesis comprising a stent-element;
- providing at least one internally tapered die proportioned to compact the endoprosthesis, the tapered die including multiple raised flutes and grooves therein to define a tapered surface;
passing the endoprosthesis through the tapered die to reduce its dimensions, the raised flutes and grooves causing the endoprosthesis to fold into uniform pleats in its compacted dimension.
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Accused Products
Abstract
Large diameter self-expanding endoprosthetic devices, such as stents and stent grafts for delivery to large diameter vessels, such as the aorta, are disclosed having very small compacted delivery dimensions. Devices with deployed dimensions of 26 to 40 mm or more are disclosed that are compacted to extremely small dimensions of 5 mm or less, enabling percutaneous delivery of said devices without the need for surgical intervention. Compaction efficiencies are achieved by combining unique material combinations with new forms of restraining devices, compaction techniques, and delivery techniques. These inventive devices permit consistent percutaneous delivery of large vessel treatment devices. Additionally, small endoprosthetic devices are disclosed that can be compacted to extremely small dimensions for delivery through catheter tubes of less than 1 mm diameter.
237 Citations
11 Claims
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1. A method of compacting an endoprosthesis into a compacted dimension comprising
providing a self-expanding endoprosthesis comprising a stent-element; -
providing at least one internally tapered die proportioned to compact the endoprosthesis, the tapered die including multiple raised flutes and grooves therein to define a tapered surface; passing the endoprosthesis through the tapered die to reduce its dimensions, the raised flutes and grooves causing the endoprosthesis to fold into uniform pleats in its compacted dimension. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification