Patent US6860900B2 successfully refreshed from Google Patents.
US6860900B2
Expired / Lapsed
US
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Stent and stent-graft for treating branched vessels
Assignee: Lifeshield Sciences LLC
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Filing: 2003-06-27
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Granted: 2005-03-01
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Expires: 2023-06-27
Abstract
Abstract An implantable stent and stent-graft for treating a patient having a relatively healthy first aorta portion upstream from a renal artery branch, and a diseased aorta portion downstream from the renal artery branch. One embodiment of the device includes a fixation section, a renal artery branch section and a diseased aorta section, all of which can be tubular, radially compressible and self-expandable structures formed from a plurality of filaments which are helically wound in a braided configuration. When the device is implanted and in its expanded state, the fixation section engages the first aorta portion upstream from a renal artery branch to provide substantial anchoring support. The diseased aorta section engages the portion of the aorta downstream from the renal artery branch and extends across the diseased portion of the aorta for purposes of treatment. The renal artery branch section extends across the renal artery branch and connects the diseased aorta section to the fixation section while allowing blood flow between the aorta and renal artery branch.
Inventors
- 👤 Claude O. Clerc
- 👤 Paul F. Chouinard
- 👤 Leonard Pinchuk
- 👤 Paul J. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/856; A61F2002/061; A61F2002/065; A61F2002/075; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0008
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
95 words
An implantable medical device for treating a section of a patient's vessel having a vessel branch, a relatively healthy first vessel portion on a first side of the vessel branch, and a diseased vessel portion on a second side of the vessel branch, including: a fixation section having a first porosity; a diseased section having a second porosity and a diseased section length; and a branch section comprising a supportive structure having a third porosity which is greater than the second porosity and a branch section length which is less than said diseased section length.
Claim 2
Dependent Claim
95 words
An implantable medical device for treating a section of a patient's vessel having a vessel branch, a relatively healthy first vessel portion on a first side of the vessel branch, and a diseased vessel portion on a second side of the vessel branch, including: a fixation section having a first porosity; a diseased section having a second porosity and a diseased section length; and a branch section comprising a supportive structure having a third porosity which is greater than the second porosity and a branch section length which is less than said diseased section length.
Claim 3
Dependent Claim
25 words
The implantable medical device of claim 1 wherein the branch section includes a plurality of filaments extending between the fixation section and the diseased section.
Claim 4
Dependent Claim
30 words
The implantable medical device of claim 2 wherein the filaments of the branch section are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure.
Claim 5
Dependent Claim
27 words
The implantable medical device of claim 2 wherein a free state diameter of the fixation section is equal to a free state diameter of the branch section.
Claim 6
Dependent Claim
25 words
The implantable medical device of claim 2 wherein a radial pressure of the fixation section is greater than a radial pressure of the branch section.
Claim 7
Dependent Claim
25 words
The implantable medical device of claim 1 wherein the radial pressure of the fixation section is greater than a radial pressure of the diseased section.
Claim 8
Dependent Claim
17 words
The implantable medical device of claim 1 wherein the third porosity is greater than the first porosity.
Claim 9
Dependent Claim
146 words
An implantable medical device for treating a section of a patient's vessel having a vessel branch, a relatively healthy first vessel portion on a first side of the vessel branch, and a diseased vessel portion on a second side of the vessel branch, including: a fixation section comprising a plurality of filaments which are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure having a first porosity, a diseased section comprising a plurality of filaments which are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure having a second porosity, said diseased section having a diseased section length and a branch section comprising a supportive, radially compressible and expandable structure having a third porosity which is greater than the second porosity, and a branch section length which is less than said diseased section length.
Claim 10
Dependent Claim
146 words
An implantable medical device for treating a section of a patient's vessel having a vessel branch, a relatively healthy first vessel portion on a first side of the vessel branch, and a diseased vessel portion on a second side of the vessel branch, including: a fixation section comprising a plurality of filaments which are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure having a first porosity, a diseased section comprising a plurality of filaments which are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure having a second porosity, said diseased section having a diseased section length and a branch section comprising a supportive, radially compressible and expandable structure having a third porosity which is greater than the second porosity, and a branch section length which is less than said diseased section length.
Claim 11
Dependent Claim
25 words
The implantable medical device of claim 8 wherein the branch section includes a plurality of filaments extending between the fixation section and the diseased section.
Claim 12
Dependent Claim
30 words
The implantable medical device of claim 9 wherein the filaments of the branch section are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure.
Claim 13
Dependent Claim
27 words
The implantable medical device of claim 9 wherein a free state diameter of the fixation section is equal to a free state diameter of the branch section.
Claim 14
Dependent Claim
25 words
The implantable medical device of claim 9 wherein a radial pressure of the fixation section is greater than a radial pressure of the branch section.
Claim 15
Dependent Claim
25 words
The implantable medical device of claim 8 wherein the radial pressure of the fixation section is greater than a radial pressure of the diseased section.
Claim 16
Dependent Claim
17 words
The implantable medical device of claim 8 wherein the third porosity is greater than the first porosity.
Claim 17
Dependent Claim
95 words
An implantable medical device for treating a section of a patient's vessel having a vessel branch, a relatively healthy first vessel portion on a first side of the vessel branch, and a diseased vessel portion on a second side of the vessel branch, including: a fixation section having a first porosity; a diseased section having a second porosity; and a branch section comprising a supportive structure having a third porosity which is greater than the second porosity; wherein a radial pressure of the fixation section is greater than a radial pressure of the diseased section.
Claim 18
Dependent Claim
95 words
An implantable medical device for treating a section of a patient's vessel having a vessel branch, a relatively healthy first vessel portion on a first side of the vessel branch, and a diseased vessel portion on a second side of the vessel branch, including: a fixation section having a first porosity; a diseased section having a second porosity; and a branch section comprising a supportive structure having a third porosity which is greater than the second porosity; wherein a radial pressure of the fixation section is greater than a radial pressure of the diseased section.
Claim 19
Dependent Claim
143 words
An implantable medical device for treating a section of a patient's vessel having a vessel branch, a relatively healthy first vessel portion on a first side of the vessel branch, and a diseased vessel portion on a second side of the vessel branch, including: a fixation section comprising a plurality of filaments which are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure having a first porosity, a diseased section comprising a plurality of filaments which are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure having a second porosity, and a branch section comprising a supportive, radially compressible and expandable structure having a third porosity which is greater than the second porosity; wherein a radial pressure of the fixation section is greater than a radial pressure of the diseased section.
Claim 20
Dependent Claim
143 words
An implantable medical device for treating a section of a patient's vessel having a vessel branch, a relatively healthy first vessel portion on a first side of the vessel branch, and a diseased vessel portion on a second side of the vessel branch, including: a fixation section comprising a plurality of filaments which are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure having a first porosity, a diseased section comprising a plurality of filaments which are helically wound in a braided configuration to form a tubular, radially compressible and self-expandable structure having a second porosity, and a branch section comprising a supportive, radially compressible and expandable structure having a third porosity which is greater than the second porosity; wherein a radial pressure of the fixation section is greater than a radial pressure of the diseased section.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-02-29 | 2008-08-30 | 2009-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-02-29 | 2012-08-30 | 2013-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-02-29 | 2016-08-30 | 2017-03-01 | $7700.00 | Window Closed / Lapsed |