Implantable medical device with twisted element
AssigneeCook Medical Technologies LLC
InventorsTue Thuren Bödewadt, Christina Rauff Hansen, Kim Møgelvang Jensen, Raimo Urban Jensen, Erik E. Rasmussen
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Abstract
A vascular occluder includes a tubular support element and a sleeve of occluding material disposed within the support element. The sleeve is twisted in the support creating a constriction which closes the lumen of the sleeve. The lumen of the sleeve can nevertheless be opened by a guide wire or cannula for over the wire delivery. Once the guide wire or cannula are withdrawn from the sleeve, the sleeve will close again by the action of blood pressure thereon. Blood pressure will act to maintain closing pressure on the sleeve, thereby avoiding or reducing the risk of recanalization.
Claims19
An implantable medical device including a continuous tubular support element having a first end and a second end of the tubular support element;
- and a sleeve having a lumen therein and a length, the sleeve being disposed within the tubular support element and extending between the first and second ends thereof, a first end of the sleeve being fixed to the first end of the tubular support element and a second end of the sleeve being fixed to the second end of the tubular support element;
- the sleeve having a permanently twisted configuration along its length between the first end and the second end of the tubular support element the tubular support element remaining cylindrical while the sleeve is in said twisted configuration.
Dependencies are inferred from the claim text.