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US 6,402,777 B1Granted
Radiopaque stent markers
AssigneeMedtronic, Inc.
InventorsOren Globerman, Mordechay Beyar, Rafael Beyar
Life of this patent
Estimating the term…
Abstract
Stents which are inserted into a body lumen preferably are made of materials which are not radiopaque enough, such as S.S. 316L. X-ray visualization of a stent enables an accurate positioning of the stent and also a follow-up of its functioning within the patient's body. The radiopaque markers described here are rivets made of a material which is more radiopaque than the stent substance so the location of the stent can be identified.
Claims19
A medical device comprising:
- a catheter and a stent mounted on the catheter, the stent comprising:
- first and second radially expandable members, each of said first and second radially expandable members curved into peaks and valleys;
- at least one opening integrally formed in the first radially expandable member such that the opening occupies at least a portion of the area defined by a peak or valley;
- radiopaque marker material forming a rivet in each opening;
- and
- a plurality of interconnecting links each having a curved conformation, the interconnecting links extending between the first and second radially expandable members such that, for each opening, at least one interconnecting link is connected to the first radially expandable member at a point on the circumference of the opening.
3 more elements
A medical device comprising:
- a catheter and a stent mounted on the catheter, the stent comprising:
- a plurality of radially expandable members comprising a first radially expandable member comprising a first distal end of said stent, each of said radially expandable members curved into peaks and valleys;
- at least one opening integrally formed in the first radially expandable member such that the opening occupies at least a portion of the area defined by a peak or valley;
- radiopaque marker material forming a rivet in each opening;
- and
- a plurality of interconnecting links each having a curved conformation, the interconnecting links extending between adjacent radially expandable members, such that, for each opening, at least one interconnecting link is connected to the first radially expandable member at a point on the circumference of the opening.
3 more elements
Dependencies are inferred from the claim text.