Expandable implant and implant system
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An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer foam elements. Another embodiment includes an elongated length of expandable polymer foam coupled to a backbone. Another embodiment includes a system for endovascular delivery of an expandable implant (e.g., shape memory polymer) to embolize an aneurysm. The system may include a microcatheter, a lumen-reducing collar coupled to the distal tip of the microcatheter, a flexible pushing element detachably coupled to an expandable implant, and a flexible tubular sheath inside of which the compressed implant and pushing element are pre-loaded. Other embodiments are described herein.
Wilson, Thomas S.; Small, Ward IV; Benett, William J.; Ortega, Jason M.; Maitland, Duncan J.; Hartman, Jonathan (2021). Expandable implant and implant system. United States. Patent and Trademark Office; Texas A&M University. Libraries. Available electronically from