US6419696B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annuloplasty devices and related heart valve repair methods
Assignee: HVR Cardio Oy
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Filing: 2000-07-06
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Granted: 2002-07-16
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Expires: 2020-07-06
Abstract
Abstract Devices for repairing and replacing a heart valve in various embodiments, the devices include at least first and second support rings connected together in a coiled configuration to abut opposite sides of a valve annulus. A replacement valve may be secured to the coil-shaped device. Various alternative fastening systems include suture fastening systems, mechanical fastening systems, shape memory alloy fastening systems and other fastening systems relying only on the resilience between adjacent coils. A method generally includes inserting a first end of the coil-shaped member through a valve annulus, rotating a first ring of the coil-shaped member into position on one side of the valve annulus and positioning at least a second ring of the coil-shaped member on an opposite side of the valve annulus.
Inventors
- 👤 Mark Ortiz
- 👤 Randy Whedon
- 👤 Paul A. Spence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:14
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/2445; A61F2/2448; A61F2/2409; A61F2/2466; A61F2/2427; A61F2/2454; A61F2/2457; A61F2210/00; A61F2210/0014; A61F2210/0023; A61F2210/0033; A61F2230/00; A61F2230/0063; A61F2230/0091; A61F2250/00; A61F2250/0058; A61F2250/006
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
84 words
A device for repairing a heart valve comprised of valve tissue including an annulus and a plurality of leaflets for allowing and preventing blood flow, the device comprising: a first support ring, and a second support ring connected to said first support ring to form a coiled configuration, said first support ring configured to abut one side of the valve and said second support ring configured to abut an opposite side of the valve to thereby trap a portion of the valve tissue therebetween.
Claim 2
Independent Claim
84 words
A device for repairing a heart valve comprised of valve tissue including an annulus and a plurality of leaflets for allowing and preventing blood flow, the device comprising: a first support ring, and a second support ring connected to said first support ring to form a coiled configuration, said first support ring configured to abut one side of the valve and said second support ring configured to abut an opposite side of the valve to thereby trap a portion of the valve tissue therebetween.
Claim 3
Dependent Claim
36 words
The device of claim 1 , wherein said first and second support rings each have an inner core covered by an outer layer, said inner core formed from a more rigid material than said outer layer.
Claim 4
Dependent Claim
18 words
The device of claim 1 , wherein said first and second support rings have generally triangular-shaped cross sections.
Claim 5
Dependent Claim
20 words
The device of claim 1 , further comprising: a plurality of fasteners extending between said first and second support rings.
Claim 6
Dependent Claim
12 words
The device of claim 4 , wherein said fasteners comprise sharp projections.
Claim 7
Dependent Claim
31 words
The device of claim 4 , wherein said fasteners comprises projections extending from said first support ring and receiving members on said second support ring configured to engage with said projections.
Claim 8
Dependent Claim
34 words
The device of claim 1 , further comprising an actuating member coupled to at least one of said support rings and operating to actuate the fasteners to an extended position through the valve tissue.
Claim 9
Dependent Claim
20 words
The device of claim 1 , wherein said first and second support rings are formed from a shape memory alloy.
Claim 10
Dependent Claim
54 words
The device of claim 1 , further comprising a removable material on at least one of said first and second support rings for reducing friction between the respective rings and the valve tissue during initial engagement therewith, said material being removable to increase the friction during securement of the device to the valve tissue.
Claim 11
Dependent Claim
25 words
The device of claim 1 , wherein opposed surfaces of said first and second support rings are roughened to facilitate engagement with the valve tissue.
Claim 12
Dependent Claim
19 words
The device of claim 10 , further comprising a coating of cushioning material on each of said opposed surfaces.
Claim 13
Dependent Claim
18 words
The device of claim 1 , wherein each of said support rings is formed from a fabric material.
Claim 14
Dependent Claim
16 words
The device of claim 1 , wherein at least one of said support rings includes undulations.
Claim 15
Dependent Claim
17 words
The device of claim 1 , wherein said support rings are formed from a flat plate material.
Claim 16
Dependent Claim
50 words
The device of claim 1 , wherein said first and second support rings are formed integrally from a coiled rod with one end of said rod formed a leading end on said first support ring and another end of said rod forming a trailing end on said second support ring.
Claim 17
Dependent Claim
18 words
The device of claim 15 , wherein said leading and trailing ends are bent in generally opposite directions.
Claim 18
Dependent Claim
72 words
The device of claim 1 , wherein said first and second support rings have a multi-layered construction including an inner layer of a first material and an outer layer of a second material, said inner layer having a lower coefficient of friction than said outer layer, and said inner layer being exposed on opposed surfaces of said first and second support rings which are adapted to engage the valve tissue there between.
Claim 19
Dependent Claim
45 words
The device of claim 1 , further comprising a removable carrier configured to carry said first and second support rings into position on opposite sides of the valve and then be removed leaving said first and second support rings on opposite sides of the valve.
Claim 20
Dependent Claim
24 words
The device of claim 1 , wherein said first and second support rings are adjustable in diameter to allow adjustment of the valve annulus.
Claim 21
Independent Claim
82 words
A device for repairing a heart valve comprised of valve tissue including an annulus and a plurality of leaflets for allowing and preventing blood flow, the device comprising: a carrier, and a coil-shaped member connected to said carrier in a removable manner, said coil-shaped member having a first support ring configured to abut one side of the valve and a second support ring configured to abut an opposite side of the valve to thereby trap a portion of the valve tissue therebetween.
Claim 22
Independent Claim
82 words
A device for repairing a heart valve comprised of valve tissue including an annulus and a plurality of leaflets for allowing and preventing blood flow, the device comprising: a carrier, and a coil-shaped member connected to said carrier in a removable manner, said coil-shaped member having a first support ring configured to abut one side of the valve and a second support ring configured to abut an opposite side of the valve to thereby trap a portion of the valve tissue therebetween.
Claim 23
Dependent Claim
19 words
The device of claim 20 further comprising: a plurality of fasteners extending between said first and second support rings.
Claim 24
Dependent Claim
12 words
The device of claim 21 , wherein said fasteners comprise sharp projections.
Claim 25
Independent Claim
84 words
A method of repairing a heart valve comprised of valve tissue including an annulus and a plurality of leaflets for allowing and preventing blood flow, the method comprising: inserting a first end of a coil-shaped support through a portion of the valve tissue, rotating at least a first ring of the coil-shaped support to position the first ring on a first side of the valve, and positioning at least a second ring of the coil-shaped support on an opposite second side of the valve.
Claim 26
Independent Claim
84 words
A method of repairing a heart valve comprised of valve tissue including an annulus and a plurality of leaflets for allowing and preventing blood flow, the method comprising: inserting a first end of a coil-shaped support through a portion of the valve tissue, rotating at least a first ring of the coil-shaped support to position the first ring on a first side of the valve, and positioning at least a second ring of the coil-shaped support on an opposite second side of the valve.
Claim 27
Dependent Claim
21 words
The method of claim 23 , further comprising: fastening the first and second rings together to trap the valve tissue therebetween.
Claim 28
Dependent Claim
34 words
The method of claim 24 , wherein the step of fastening the first and second rings together further comprises: inserting fasteners through said first and second rings and through the valve tissue disposed therebetween.
Claim 29
Dependent Claim
40 words
The method of claim 24 , wherein the step of fastening the first and second rings together further comprises: activating a plurality of sharp projections from said first ring toward said second ring and through the valve tissue disposed therebetween.
Claim 30
Dependent Claim
23 words
The method of claim 23 , wherein the inserting and rotating steps each further comprise: extending the coil shaped support from a catheter.
Claim 31
Dependent Claim
35 words
The method of claim 23 , wherein said coil shaped support is coupled with a carrier during the inserting, rotating and positioning steps, and the method further comprises: removing the carrier after the positioning step.
Claim 32
Dependent Claim
31 words
The method of claim 28 , further comprising: driving a plurality of fastening elements through the coil shaped support and valve tissue, and against the carrier prior to removing the carrier.
Claim 33
Dependent Claim
58 words
The method of claim 23 , wherein said coil shaped support includes a material having a lower coefficient of friction than said outer surface, and the method further comprising: performing at least the inserting and rotating steps with the material disposed on at least a portion of the outer surface, and removing the material after the rotating step.
Claim 34
Dependent Claim
14 words
The method of claim 30 further comprising: removing the material after the positioning step.
Claim 35
Dependent Claim
28 words
The method of claim 23 , further comprising: adjusting the diameter of at least one of said first and second rings to adjust the diameter of the annulus.
Claim 36
Dependent Claim
22 words
The method of claim 23 , further comprising: coupling a replacement valve to at least one of said first and second rings.
References Cited (Backward Citations)
US6183512B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-07-15 | 2006-01-14 | 2006-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-07-15 | 2010-01-14 | 2010-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-07-15 | 2014-01-14 | 2014-07-16 | $7700.00 | Window Closed / Lapsed |