Patent US5554185A successfully refreshed from Google Patents.
US5554185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable prosthetic cardiovascular valve for percutaneous transluminal implantation of same
Assignee: Direct Flow Medical Inc
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Filing: 1994-07-18
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Granted: 1996-09-10
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Expires: 2014-07-18
Abstract
Abstract An inflatable prosthetic cardiovascular valve which is constructed so as to be initially deployable in a deflated "collapsed" configuration wherein the valve may be passed through the lumen of a cardiovascular catheter and subsequently inflated to an "operative" configuration so as to perform its intended valving function at its intended site of implantation within the cardiovascular system. The inflated valve may be held in place by mechanical means (e.g., hooks, projections), by chemical adhesive or through biological assimilation by the heart tissue.
Inventors
- 👤 Peter C. Block
- 👤 W. Earl Anderson
- 👤 David G. Atteridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2/2427; A61F2/2436; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/005; A61F2250/00; A61F2250/0003; Y; Y10; Y10S; Y10S623/00; Y10S623/90
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
151 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring defining a central passageway through which blood may flow; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowinq through said central passageway in a second direction, said second direction being opposite said first direction; c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof; and d) at least one pin protruding outwardly from said valve and configured to engage said adjacent anatomical structure when said inflatable valve body is inflated.
Claim 2
Dependent Claim
151 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring defining a central passageway through which blood may flow; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowinq through said central passageway in a second direction, said second direction being opposite said first direction; c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof; and d) at least one pin protruding outwardly from said valve and configured to engage said adjacent anatomical structure when said inflatable valve body is inflated.
Claim 3
Dependent Claim
39 words
The prosthetic cardiovascular valve of claim 1 wherein said at least one pin member comprises: a series of pin members positioned around said annular ring so as to penetrate and engage surrounding anatomical tissue when said valve is inflated.
Claim 4
Dependent Claim
150 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring defining a central passageway through which blood may flow; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowing through said central passageway in a second direction, said second direction being opposite said first direction; c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof; and d) a gelatinous inflation substance disposed within said inflatable valve body in sufficient quantity to maintain said valve body in said inflated operative configuration.
Claim 5
Dependent Claim
150 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring defining a central passageway through which blood may flow; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowing through said central passageway in a second direction, said second direction being opposite said first direction; c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof; and d) a gelatinous inflation substance disposed within said inflatable valve body in sufficient quantity to maintain said valve body in said inflated operative configuration.
Claim 6
Dependent Claim
146 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring defining central passageway through which blood may flow; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowing through said central passageway in a second directions, said second direction being opposite said first direction; c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof; and d) a solidified inflation substance disposed within said inflatable valve body to maintain said valve body in said inflated operative configuration.
Claim 7
Dependent Claim
146 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring defining central passageway through which blood may flow; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowing through said central passageway in a second directions, said second direction being opposite said first direction; c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof; and d) a solidified inflation substance disposed within said inflatable valve body to maintain said valve body in said inflated operative configuration.
Claim 8
Dependent Claim
70 words
The prosthetic cardiovascular valve of claim 4 wherein said solidified inflation substance is formed within said inflatable valve body by the process comprising the steps of: providing at least one solidifying fluid which will form said solidified substance; passing said solidifying fluid into said inflatable valve body so as to cause inflation of said valve body and subsequently allowing said at least one fluid to solidify within said valve body.
Claim 9
Dependent Claim
163 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve adapted for permanent implantation in a patient, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring comprising a first side and a second side, said annular ring defining a central passageway through which blood may flow; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowing through said central passageway in a second direction, said second direction being opposite said first direction; c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof; and d) a plurality of strut members extending from one of said sides of said inflated ring member.
Claim 10
Dependent Claim
163 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve adapted for permanent implantation in a patient, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring comprising a first side and a second side, said annular ring defining a central passageway through which blood may flow; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowing through said central passageway in a second direction, said second direction being opposite said first direction; c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof; and d) a plurality of strut members extending from one of said sides of said inflated ring member.
Claim 11
Dependent Claim
40 words
The prosthetic cardiovascular valve of claim 6 wherein said strut members are inflatable along with said ring member and wherein each said strut member defines a hollow inflation space therewithin consistent with the inflation space defined within said ring member.
Claim 12
Dependent Claim
31 words
The prosthetic cardiovascular valve of claim 6 further comprising at least one anchoring member formed on said valve and configured to engage an adjacent anatomical structure when said valve is inflated.
Claim 13
Dependent Claim
35 words
The prosthetic cardiovascular valve of claim 6 further comprising a check valve apparatus associated with said inflation port to prevent leakage of inflation fluid out of said inflation port after said valve has been inflated.
Claim 14
Dependent Claim
26 words
The prosthetic cardiovascular valve of claim 6 further comprising an elongate inflation tube connected to said inflation port to facilitate inflation of said inflatable valve body.
Claim 15
Dependent Claim
40 words
The prosthetic cardiovascular valve of claim 10 wherein said elongate inflation tube is detachably connected to said inflation port such that said inflation tube may be detached from said valve body and removed after said valve body has been inflated.
Claim 16
Dependent Claim
39 words
The prosthetic cardiovascular valve of claim 11 further in combination with a check valve apparatus which is operative to prevent the backflow of inflation fluid out of said inflation port after said detachable inflation tube has been detached therefrom.
Claim 17
Dependent Claim
54 words
The prosthetic cardiovascular valve of claim 6 wherein said inflatable valve support body and said at least one leaflet occluder are configured and constructed such that, when said valve is in the deflated, collapsed configuration, said valve will be sufficiently compact to be passable through a catheter lumen of approximately 4-7 mm in diameter.
Claim 18
Dependent Claim
32 words
The prosthetic cardiovascular valve of claim 6 further in combination with a quantity of inflation fluid disposed within said inflatable valve body to maintain said valve body in said inflated operative configuration.
Claim 19
Dependent Claim
18 words
The prosthetic cardiovascular valve of claim 6 wherein said inflatable valve body comprises a continuous inflatable annular ring.
Claim 20
Dependent Claim
54 words
The prosthetic cardiovascular valve of claim 6 wherein said inflatable valve body comprises a split inflatable annular ring comprising separated first and second ends such that when said valve body is deflated, said valve body is extendable into a linearly extended configuration and which, when inflated, is configurable in a generally round, annular configuration.
Claim 21
Dependent Claim
169 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring defining a central passageway through which blood may flow, and wherein said inflatable valve support body comprises separated first and second ends such that when said valve body is deflated, said valve body is extendable into a linearly extended configuration and which, when inflated, is configurable in a generally round, annular configuration; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowing through said central passageway in a second direction, said second direction being opposite said first direction; and, c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof.
Claim 22
Dependent Claim
169 words
An inflatable cardiovascular valve initially deployable in a collapsed deflated configuration and subsequently inflatable to a non-collapsed operative configuration, said valve comprising: a) an inflatable valve support body which, when fully inflated, comprises a generally annular ring defining a central passageway through which blood may flow, and wherein said inflatable valve support body comprises separated first and second ends such that when said valve body is deflated, said valve body is extendable into a linearly extended configuration and which, when inflated, is configurable in a generally round, annular configuration; b) at least one leaflet occluder attached to said inflatable valve support body and configured to move back and forth between: i. an open position wherein blood may flow in a first direction through said central passageway; and ii. a closed position whereby blood is prevented from backflowing through said central passageway in a second direction, said second direction being opposite said first direction; and, c) an inflation port formed on said inflatable valve support body to facilitate inflation thereof.
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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) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |