Implantable medical device with fenestration and radiopaque marker coils on stents
AssigneeCook Medical Technologies LLC
InventorsKim Moegelvang Jensen, Erik E. Rasmussen
Life of this patent
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Abstract
A fenestrated implantable medical device, such as a stent graft (10) is provided with a plurality of zigzag stents (12) of which two or more form fenestrations (34, 36) using part of the stents (12) as a support frame (30, 32) for the fenestrations (34, 36). The frames (30, 32) are preferably covered by radiopaque wire (44) coiled around the stent structures. The radiopaque coil (44) provides easy reference to the fenestrations (30, 32) for imaging purposes.
Claims20
An implantable medical device13 comprising:
- a longitudinal dimension;
- at least a first and a second stent element disposed in series along the longitudinal dimension of the device, the first and the second stent elements being annular;
- a graft element attached to and extending between the first and the second stent elements;
- a first and a second frame portion comprising portions of the first and the second stent elements, respectively;
- and a fenestration within the graft element, the fenestration extending to and delimited by the first and the second frame portions.
An implantable medical device comprising:
- a longitudinal dimension;
- a first and a second stent element being disposed in series along the longitudinal dimension of the device, the first and the second stent elements being annular and adjacent one another;
- the first and the second stent element having a peak and a valley, respectively, aligned longitudinally so as to oppose one another in a peak-to-valley arrangement thereby to produce a first and a second frame portion comprising the peak and the valley respectively;
- a graft element attached to and extending between the first and the second stent elements;
- a fenestration within the graft element, the fenestration extending to and delimited by the first and the second frame portions.
A method of making an implantable medical device, which device includes a longitudinal dimension and a first and a second stent element, the first and the second stent elements being annular, the method including the steps of:
- disposing the first and the second stent elements in series along the longitudinal dimension of the device;
- attaching a graft element to the first and the second stent elements so as to extend therebetween;
- orienting the first and the second stent elements relative to one another such that there is a first and a second frame portion comprising the first and the second stent elements respectively;
- and
- disposing a coil of radiopaque material around at least a part of the first and the second frame portions, wherein the first and the second frame portions delimit a fenestration in the graft element, and the fenestration extends to the first and the second frame portions.
Dependencies are inferred from the claim text.