US20070276463A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable Stent
Assignee: Merit Medical Systems Inc
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Filing: 2004-09-29
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Granted: —
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Expires: 2024-09-29
Abstract
Abstract The invention is relative to a stent with a tubular support frame consisting of axially successively following, interconnected annular segments which support frame is surrounded on its outside by a thread. The thread ends are guided via a deflection from the outside into support frame, where they are coupled by a connector consisting of a material visible in x-rays. Deflection is realized by two deflection elements in the form of eyelets provided on annular segments. Deflection elements are arranged on the circumference of support frame at an interval from one another and are provided on end-side annular segments, viewed in longitudinal direction of the stent.
Inventors
- 👤 Thomas Nissl
- 👤 Eric Mangiardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:10
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91516; A61F2002/91533; A61F2002/9155; A61F2002/91566; A61F2002/91575; A61F2/95; A61F2002/9528; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2250/00; A61F2250/0058; A61F2250/0059
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
191 words
1 . A stent with a tubular support frame ( 2 ) that can be widened out from an initial state (A) into a support state (S), in which the support state ( 2 ) consists of at least two annular segments ( 3 - 6 ) that are formed by struts ( 7 , 8 , 9 , 10 ) that endlessly follow each other in a corrugated manner via transitional sections ( 1 , 12 ) and in which adjacent annular segments ( 3 - 6 ) are coupled by connectors ( 13 ), characterized in that every second front transitional section ( 12 ) on the end-side annular segments ( 3 ; 6 ), viewed in the direction of the longitudinal axis (L) of the stent, has a widened head end ( 18 ) that projects axially opposite the adjacent transitional sections ( 11 ) and has a convexly rounded front section ( 19 ) and concavely rounded throat sections ( 20 , 21 ) between the head end ( 18 ) and the struts ( 9 , 10 ) connected to the head end ( 18 ).
Claim 2
Dependent Claim
191 words
1 . A stent with a tubular support frame ( 2 ) that can be widened out from an initial state (A) into a support state (S), in which the support state ( 2 ) consists of at least two annular segments ( 3 - 6 ) that are formed by struts ( 7 , 8 , 9 , 10 ) that endlessly follow each other in a corrugated manner via transitional sections ( 1 , 12 ) and in which adjacent annular segments ( 3 - 6 ) are coupled by connectors ( 13 ), characterized in that every second front transitional section ( 12 ) on the end-side annular segments ( 3 ; 6 ), viewed in the direction of the longitudinal axis (L) of the stent, has a widened head end ( 18 ) that projects axially opposite the adjacent transitional sections ( 11 ) and has a convexly rounded front section ( 19 ) and concavely rounded throat sections ( 20 , 21 ) between the head end ( 18 ) and the struts ( 9 , 10 ) connected to the head end ( 18 ).
Claim 3
Dependent Claim
57 words
2 . The stent according to claim 1 , characterized in that the head ends ( 18 ) are configured in a mushroom shape and that the convex front sections ( 19 ) and the concave throat sections ( 20 , 21 ) are connected to each other by rounded edge sections ( 22 , 23 ).
Claim 4
Dependent Claim
47 words
3 . The stent according to claim 1 , characterized in that the throat sections ( 20 , 21 ) extend at least in areas over the edge-side transitional sections ( 11 ) of the adjacent struts ( 7 , 8 ) in the initial state (A).
Claim 5
Dependent Claim
57 words
4 . The stent according to claim 1 , characterized in that deflection elements ( 24 , 25 ) for a thread looping around the outside of the support frame ( 2 ) are arranged on the end-side annular segments ( 3 , 6 ), viewed in the direction of the longitudinal axis (L) of the stent.
Claim 6
Dependent Claim
68 words
5 . The stent according to claim 1 , characterized in that each connector ( 13 , 13 ′) is designed like a strut and has a longitudinal section ( 14 , 14 ′) running substantially parallel to the longitudinal axis L of the stent and comprises a compensation section ( 15 , 15 ′) aligned transversally to the latter and configured in a U or V shape.
Claim 7
Dependent Claim
53 words
6 . The stent according to claim 5 , characterized in that the U-shaped compensation sections ( 15 , 15 ′) of the connectors ( 13 , 13 ′) are arranged in the area ( 16 ) between two axially adjacent, spaced annular segments ( 3 , 4 , 5 , 6 ).
Claim 8
Dependent Claim
83 words
7 . The stent according to claim 1 , characterized in that the connectors ( 13 , 13 ′) extend out from the ridge area ( 17 ) of two struts ( 7 , 8 ) of an annular segment ( 4 , 5 ) between two struts ( 7 , 8 ) of the adjacent annular segment ( 3 , 4 , 5 , 6 ) up to the transitional section ( 11 ) of these struts ( 7 , 8 ).
Claim 9
Dependent Claim
24 words
8 . The stent according to claim 1 , characterized in that the connectors ( 13 , 13 ′) are aligned in axial succession.
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