US Patent 7637935 Endoprosthesis for controlled contraction and expansion
Patent 7637935 was granted and assigned to Abbott on December, 2009 by the United States Patent and Trademark Office.
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An endoprosthesis that has an interconnected series of struts, selected strut members connected to adjacent strut members at a longitudinal apex. Strut members include a first end portion, an intermediate portion hingedly connected to the first end portion, and a second end portion hingedly connected to the intermediate portion and extending to the apex. Some of the strut members can have a nesting feature configured for nestingly receiving another strut member when the endoprosthesis is in the delivery condition. A scaffolding body of the endoprosthesis can have an inner and outer component, each having a set of interconnected strut members which overlap those of the other to define a cooperating cell pattern. Also, the endoprosthesis can be configured to naturally tend to contract when the body is smaller than a predetermined diameter and expand when the body is larger than a predetermined diameter.
US Patent 07637935 Endoprosthesis for controlled contraction and expansion US Patent 7637935 Endoprosthesis for controlled contraction and expansion
US Patent 07637935 Endoprosthesis for controlled contraction and expansion
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