Patent US6562065B1 successfully refreshed from Google Patents.
US6562065B1
Expired / Lapsed
US
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Expandable medical device with beneficial agent delivery mechanism
Assignee: Innovational Holdings LLC
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Filing: 2000-08-28
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Granted: 2003-05-13
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Expires: 2020-08-28
Abstract
Abstract An expandable tissue supporting device of the present invention employs ductile hinges at selected points in the expandable device. When expansion forces are applied to the device as a whole, the ductile hinges concentrate expansion stresses and strains in small well defined areas. The expandable medical device including ductile hinges provides the advantages of low expansion force requirements, relatively thick walls which are radio-opaque, improved crimping properties, high crush strength, reduced elastic recoil after implantation, and control of strain to a desired level. The expandable tissue supporting device includes a plurality of elongated beams arranged in a cylindrical device and connected together by a plurality of ductile hinges. Although many ductile hinge configurations are possible, the ductile hinges preferably have a substantially constant hinge cross sectional area which is smaller than a beam cross sectional area such that as the device is expanded from a first diameter to a second diameter, the ductile hinges experience plastic deformation while the beams are not plastically deformed.
Inventors
- 👤 John F. Shanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:51
CPC Classifications
A; A61; A61M; A61M29/00; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91533; A61F2002/91541; A61F2002/9155; A61F2002/91558; A61F2250/00; A61F2250/0014; A61F2250/0018; A61F2250/0029; A61F2250/0036; A61F2250/0058; A61F2250/0067; A61F2250/0068
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
149 words
An expandable medical device comprising: a cylindrical tube; and a plurality of axial slots formed in the cylindrical tube in a staggered arrangement to define a network of elongated struts, wherein each of the elongated struts are axially displaced from adjacent struts, the cylindrical tube being expandable or compressible from a first diameter to a second diameter; and a plurality of ductile hinges formed between the elongated struts, the ductile hinges allowing the cylindrical tube to be expanded or compressed from the first diameter to the second diameter by deformation of the ductile hinges, wherein the ductile hinges are asymmetrically configured to reach a predetermined strain level upon a first percentage of expansion and to reach the predetermined strain level upon a second percentage of compression, the first percentage being larger than the second percentage; wherein the elongated struts include a plurality of holes for containing a beneficial agent.
Claim 2
Dependent Claim
149 words
An expandable medical device comprising: a cylindrical tube; and a plurality of axial slots formed in the cylindrical tube in a staggered arrangement to define a network of elongated struts, wherein each of the elongated struts are axially displaced from adjacent struts, the cylindrical tube being expandable or compressible from a first diameter to a second diameter; and a plurality of ductile hinges formed between the elongated struts, the ductile hinges allowing the cylindrical tube to be expanded or compressed from the first diameter to the second diameter by deformation of the ductile hinges, wherein the ductile hinges are asymmetrically configured to reach a predetermined strain level upon a first percentage of expansion and to reach the predetermined strain level upon a second percentage of compression, the first percentage being larger than the second percentage; wherein the elongated struts include a plurality of holes for containing a beneficial agent.
Claim 3
Dependent Claim
20 words
The expandable medical device according to claim 1 , further comprising a beneficial agent disposed within the plurality of holes.
Claim 4
Dependent Claim
16 words
The expandable medical device according to claim 2 , wherein said beneficial agent is a drug.
Claim 5
Dependent Claim
15 words
The expandable medical device according to claim 2 , wherein said beneficial agent includes chemotherapy.
Claim 6
Dependent Claim
21 words
The expandable medical device according to claim 1 , wherein the elongated beams have a thickness of at least 0.002 inch.
Claim 7
Dependent Claim
116 words
An expandable medical device comprising: a plurality of elongated beams, the plurality of elongated beams joined together to form a substantially cylindrical device which is expandable from a cylinder having a first diameter to a cylinder having a second diameter, the plurality of elongated beams each having a beam width in a circumferential direction, wherein the plurality of elongated beams are undeformed during expansion from the first diameter to the second diameter; and a plurality of ductile hinges connecting the plurality of beams together in the substantially cylindrical device, wherein the ductile hinges have a smaller cross sectional area than the struts; wherein the elongated beams include a plurality of holes for containing a beneficial agent.
Claim 8
Dependent Claim
116 words
An expandable medical device comprising: a plurality of elongated beams, the plurality of elongated beams joined together to form a substantially cylindrical device which is expandable from a cylinder having a first diameter to a cylinder having a second diameter, the plurality of elongated beams each having a beam width in a circumferential direction, wherein the plurality of elongated beams are undeformed during expansion from the first diameter to the second diameter; and a plurality of ductile hinges connecting the plurality of beams together in the substantially cylindrical device, wherein the ductile hinges have a smaller cross sectional area than the struts; wherein the elongated beams include a plurality of holes for containing a beneficial agent.
Claim 9
Dependent Claim
20 words
The expandable medical device according to claim 6 , further comprising a beneficial agent disposed within the plurality of holes.
Claim 10
Dependent Claim
16 words
The expandable medical device according to claim 7 , wherein said beneficial agent is a drug.
Claim 11
Dependent Claim
15 words
The expandable medical device according to claim 7 , wherein said beneficial agent includes chemotherapy.
Claim 12
Dependent Claim
21 words
The expandable medical device according to claim 6 , wherein the elongated beams have a thickness of at least 0.002 inch.
Claim 13
Dependent Claim
121 words
An expandable medical device comprising: a cylindrical tube; and a plurality of axial slots formed in the cylindrical tube in a staggered arrangement to define a network of elongated struts, wherein each of the elongated struts are axially displaced from adjacent struts, the cylindrical tube being expandable or compressible from a first diameter to a second diameter; and a plurality of ductile hinges formed between the elongated struts, the ductile hinges allowing the cylindrical tube to be expanded or compressed from the first diameter to the second diameter by deformation of the ductile hinges, wherein the ductile hinges have a smaller cross sectional area than the struts; wherein the elongated struts include a plurality of holes for containing a beneficial agent.
Claim 14
Dependent Claim
121 words
An expandable medical device comprising: a cylindrical tube; and a plurality of axial slots formed in the cylindrical tube in a staggered arrangement to define a network of elongated struts, wherein each of the elongated struts are axially displaced from adjacent struts, the cylindrical tube being expandable or compressible from a first diameter to a second diameter; and a plurality of ductile hinges formed between the elongated struts, the ductile hinges allowing the cylindrical tube to be expanded or compressed from the first diameter to the second diameter by deformation of the ductile hinges, wherein the ductile hinges have a smaller cross sectional area than the struts; wherein the elongated struts include a plurality of holes for containing a beneficial agent.
Claim 15
Dependent Claim
20 words
The expandable medical device according to claim 11 , further comprising a beneficial agent disposed within the plurality of holes.
Claim 16
Dependent Claim
16 words
The expandable medical device according to claim 12 , wherein said beneficial agent is a drug.
Claim 17
Dependent Claim
15 words
The expandable medical device according to claim 12 , wherein said beneficial agent includes chemotherapy.
Claim 18
Dependent Claim
21 words
The expandable medical device according to claim 11 , wherein the elongated beams have a thickness of at least 0.002 inch.
Claim 19
Dependent Claim
152 words
An expandable medical device comprising: a plurality of elongated beams, the plurality of elongated beams joined together to form a substantially cylindrical device which is expandable from a cylinder having a first diameter to a cylinder having a second diameter, the plurality of elongated beams each having a beam width in a circumferential direction; and a plurality of ductile hinges connecting the plurality of beams together in the substantially cylindrical device; wherein the elongated beams include a plurality of holes for containing a beneficial agent; wherein the ductile hinges have a substantially constant width in a circumferential direction along a portion of a hinge length which is at least ⅓ a total hinge length, wherein the hinge width is smaller than the beam width such that as the device is expanded from the first diameter to the second diameter the ductile hinges experience plastic deformation while the beams are not plastically deformed.
Claim 20
Dependent Claim
152 words
An expandable medical device comprising: a plurality of elongated beams, the plurality of elongated beams joined together to form a substantially cylindrical device which is expandable from a cylinder having a first diameter to a cylinder having a second diameter, the plurality of elongated beams each having a beam width in a circumferential direction; and a plurality of ductile hinges connecting the plurality of beams together in the substantially cylindrical device; wherein the elongated beams include a plurality of holes for containing a beneficial agent; wherein the ductile hinges have a substantially constant width in a circumferential direction along a portion of a hinge length which is at least ⅓ a total hinge length, wherein the hinge width is smaller than the beam width such that as the device is expanded from the first diameter to the second diameter the ductile hinges experience plastic deformation while the beams are not plastically deformed.
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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) | 2006-05-12 | 2006-11-11 | 2007-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-05-12 | 2010-11-11 | 2011-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-05-12 | 2014-11-11 | 2015-05-13 | $7700.00 | Window Closed / Lapsed |