Patent US6428570B1 successfully refreshed from Google Patents.
US6428570B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical stents, apparatus and method for making same
Assignee: Medtronic Inc
•
Filing: 2000-03-22
•
Granted: 2002-08-06
•
Expires: 2020-03-22
Abstract
Abstract A medical device comprising a catheter and a balloon-expandable stent having a small initial diameter, flexibility along its longitudinal axis prior to expansion, a large expanded diameter, and rigidity after expansion. Local strain on the stent material is minimized, as and after the balloon is inflated. More particularly, the sent has rotation joints having minimal strain during stent expansion. The stent is substantially the same length before and after expansion and, being flexible longitudinally when constrained, is easy to deliver.
Inventors
- 👤 Oren Globerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:27
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/95; A61F2/958; A61F2/02; A61F2/04; A61F2/06; A61F2002/065; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91583
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
148 words
A medical device comprising: a catheter and a stent mounted on the catheter, the stent comprising a first radial ring, a second radial ring, and a third radial ring, each of said radial rings capable of expansion from a constricted diameter to an expanded diameter; a first plurality of interconnecting links extending between said first radial ring and said second radial ring; and a second plurality of interconnecting links extending between said second radial ring and said third radial ring, at least one of each of said pluralities of interconnecting links having an initially curved configuration which straightens as said first, second and third radial rings are expanded from said constricted diameter to said expanded diameter, and wherein at least one of the first plurality of interconnecting links forms a common junction on the second radial ring with at least one of the second plurality of interconnecting links.
Claim 2
Dependent Claim
148 words
A medical device comprising: a catheter and a stent mounted on the catheter, the stent comprising a first radial ring, a second radial ring, and a third radial ring, each of said radial rings capable of expansion from a constricted diameter to an expanded diameter; a first plurality of interconnecting links extending between said first radial ring and said second radial ring; and a second plurality of interconnecting links extending between said second radial ring and said third radial ring, at least one of each of said pluralities of interconnecting links having an initially curved configuration which straightens as said first, second and third radial rings are expanded from said constricted diameter to said expanded diameter, and wherein at least one of the first plurality of interconnecting links forms a common junction on the second radial ring with at least one of the second plurality of interconnecting links.
Claim 3
Dependent Claim
20 words
A medical device as claimed in claim 1 wherein each radial ring comprises a series of alternating peaks and valleys.
Claim 4
Dependent Claim
34 words
A medical device as claimed in claim 1 wherein at least one pair of interconnecting links forming a common junction on the second radial ring have no common points on said second radial ring.
Claim 5
Dependent Claim
101 words
A medical device comprising: a catheter and a stent mounted on the catheter, the stent comprising a first radial ring and a second radial ring, the first and second radial rings capable of expansion from a constricted diameter to an expanded diameter; and a plurality of interconnecting links extending between said first radial ring and said second radial ring and connected to said radial rings at rotatable joints, at least one of said plurality of interconnecting links having an initially curved configuration which straightens as said first and second radial rings are expanded from said constricted diameter to said expanded diameter.
Claim 6
Dependent Claim
101 words
A medical device comprising: a catheter and a stent mounted on the catheter, the stent comprising a first radial ring and a second radial ring, the first and second radial rings capable of expansion from a constricted diameter to an expanded diameter; and a plurality of interconnecting links extending between said first radial ring and said second radial ring and connected to said radial rings at rotatable joints, at least one of said plurality of interconnecting links having an initially curved configuration which straightens as said first and second radial rings are expanded from said constricted diameter to said expanded diameter.
Claim 7
Dependent Claim
130 words
A medical device comprising: a catheter and a stent mounted on the catheter, the stent comprising a first radial ring, a second radial ring, and a third radial ring, each of said radial rings comprising a series of alternating peaks and valleys and capable of expansion from a constricted diameter to an expanded diameter, said radial rings arranged such that their peaks and valleys are in phase with one another; a plurality of first interconnecting links extending between said first radial ring and said second radial ring; and at least one second interconnecting link extending between said second radial ring and said third radial ring, wherein at least one of the first plurality of interconnecting links forms a common junction on the second radial ring with the second interconnecting link.
Claim 8
Dependent Claim
130 words
A medical device comprising: a catheter and a stent mounted on the catheter, the stent comprising a first radial ring, a second radial ring, and a third radial ring, each of said radial rings comprising a series of alternating peaks and valleys and capable of expansion from a constricted diameter to an expanded diameter, said radial rings arranged such that their peaks and valleys are in phase with one another; a plurality of first interconnecting links extending between said first radial ring and said second radial ring; and at least one second interconnecting link extending between said second radial ring and said third radial ring, wherein at least one of the first plurality of interconnecting links forms a common junction on the second radial ring with the second interconnecting link.
References Cited (Backward Citations)
US4776337B1
Cited
US4776337A
Cited
US4893623A
Cited
US4816028A
Cited
US4969458A
Cited
US5653727A
Cited
US5019085A
Cited
US4856516A
Cited
US4994071A
Cited
US5104404A
Cited
US5282824A
Cited
US5356423A
Cited
US5178618A
Cited
US5135536A
Cited
US5116365A
Cited
US5527354A
Cited
US5293879A
Cited
US5314472A
Cited
US5234457A
Cited
US5354309A
Cited
US5540713A
Cited
US5421955A
Cited
US5735893A
Cited
EP0540290A2
Cited
US5421955B1
Cited
US5514154A
Cited
US5766238A
Cited
US5728158A
Cited
US5383892A
Cited
US5507767A
Cited
US5443496A
Cited
US5540712A
Cited
US5674276A
Cited
US5607445A
Cited
US5366473A
Cited
US5389106A
Cited
US5643312A
Cited
US5549663A
Cited
US5449373A
Cited
US5733303A
Cited
US5725572A
Cited
US5554181A
Cited
US5636641A
Cited
US5549662A
Cited
WO1996014808A1
Cited
US5759192A
Cited
US5630829A
Cited
WO1996026689A1
Cited
US5681346A
Cited
US5591197A
Cited
US5613981A
Cited
US5591198A
Cited
US6063113A
Cited
US5776161A
Cited
US6053940A
Cited
US5607442A
Cited
US5697971A
Cited
US5755776A
Cited
US6106548A
Cited
US6033433A
Cited
US5741327A
Cited
US5911754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-08-05 | 2006-02-04 | 2006-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-05 | 2010-02-04 | 2010-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-05 | 2014-02-04 | 2014-08-06 | $7700.00 | Window Closed / Lapsed |