Patent US3427617A successfully refreshed from Google Patents.
US6319281B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial venous valve and sizing catheter
Assignee: Individual
•
Filing: 1999-03-22
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Granted: 2001-11-20
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Expires: 2019-03-22
Abstract
Abstract A valve device for use in a body cavity. The device including a valve ring having a compressible diameter. Further, leaflets are pivotally disposed within the valve ring for movement from an open position to a closed position. A catheter device including a first catheter and a second catheter disposed within the first catheter. The first catheter includes an expandable member disposed at a lower end. The device also includes a scale. The second catheter being advanced within the first catheter causes the expandable member to move to an expanded position, which corresponds to a diameter measurement on the scale.
Inventors
- 👤 Kumar R. Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:23
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2475; A61B; A61B5/00; A61B5/103; A61B5/107; A61B5/1076; A61F2/2412; A61F2/2496; A61M; A61M25/00; A61M25/10; A61F2/04; A61F2/06
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
46 words
A self-expanding, self-attaching venous valve device for percutaneous insertion into a body cavity, comprising: a valve ring having a compressible diameter biased toward an expanded position; and leaflets hingedly and pivotally disposed within said valve ring for movement from an open position to a closed position.
Claim 2
Dependent Claim
46 words
A self-expanding, self-attaching venous valve device for percutaneous insertion into a body cavity, comprising: a valve ring having a compressible diameter biased toward an expanded position; and leaflets hingedly and pivotally disposed within said valve ring for movement from an open position to a closed position.
Claim 3
Dependent Claim
30 words
The device of claim 1 , wherein said valve ring includes a first plurality of arcuate tubes and a second plurality of arcuate tubes telescopicably disposed in said first tubes.
Claim 4
Dependent Claim
24 words
The device of claim 2 , which further includes a spring disposed in each of said first tubes between two of said second tubes.
Claim 5
Dependent Claim
46 words
The device of claim 2 , wherein said second tubes at each end include projections extended outward, said first tubes include at each end includes a lip extending inward, wherein said projections engage said lip in order to prevent disconnection of the first and second tubes.
Claim 6
Dependent Claim
12 words
The device of claim 4 , wherein said projections are spring loaded.
Claim 7
Dependent Claim
25 words
The device of claim 2 , wherein said leaflets include ridges on an underside to provide a seal between said leaflets and said second tubes.
Claim 8
Dependent Claim
22 words
The device of claim 1 , wherein said valve ring includes grooves for applying a radial force to compress said compressible diameter.
Claim 9
Dependent Claim
15 words
The device of claim 1 , further including barbs extending outward from said valve ring.
Claim 10
Dependent Claim
26 words
The device of claim 1 , wherein each of said leaflets are pivotally connected to said valve ring by an unbiased hinge having a peripheral axis.
Claim 11
Dependent Claim
20 words
The device of claim 1 , wherein said expanded position of said compressible diameter is predetermined prior to percutaneous insertion.
Claim 12
Dependent Claim
24 words
The device of claim 1 , wherein said valve ring is fully expanded to the diameter of the body cavity in a resting position.
Claim 13
Dependent Claim
78 words
A catheter device for percutaneous insertion into a body cavity, comprising: a first catheter; an expandable member disposed at a lower end of said first catheter and inside said first catheter; a second catheter disposed within said first catheter; and a scale included on said device; wherein said second catheter being advanced within said first catheter causes said expandable member to move to an expanded position, wherein said expanded position corresponds to a diameter measurement on said scale.
Claim 14
Dependent Claim
78 words
A catheter device for percutaneous insertion into a body cavity, comprising: a first catheter; an expandable member disposed at a lower end of said first catheter and inside said first catheter; a second catheter disposed within said first catheter; and a scale included on said device; wherein said second catheter being advanced within said first catheter causes said expandable member to move to an expanded position, wherein said expanded position corresponds to a diameter measurement on said scale.
Claim 15
Dependent Claim
15 words
The device of claim 12 , wherein said second catheter includes a tapered lower end.
Claim 16
Dependent Claim
16 words
The device of claim 13 , wherein said tapered lower end has an elongated conical shape.
Claim 17
Dependent Claim
14 words
The device of claim 12 , wherein said expandable member has a cylindrical configuration.
Claim 18
Dependent Claim
13 words
The device of claim 12 , wherein said expandable member includes separate plates.
Claim 19
Dependent Claim
13 words
The device of claim 16 , wherein said plates are four separate plates.
Claim 20
Dependent Claim
19 words
The device of claim 16 , wherein said plates are attached to said inner surface of said first catheter.
Claim 21
Dependent Claim
16 words
The device of claim 16 , wherein said plates are arranged in a substantially co-planar arrangement.
Claim 22
Dependent Claim
18 words
The device of claim 16 , which further includes a spring disposed around outer edges of said plates.
Claim 23
Dependent Claim
22 words
The device of claim 20 , wherein said outer edges of said plates include a groove in order to receive said spring.
Claim 24
Dependent Claim
13 words
The device of claim 12 , wherein said first catheter includes longitudinal slits.
Claim 25
Dependent Claim
17 words
The device of claim 22 , wherein said longitudinal slits are aligned with spaces between said plates.
Claim 26
Dependent Claim
16 words
The catheter device of claim 12 , wherein said scale is provided on said second catheter.
Claim 27
Dependent Claim
107 words
A venous valve device for percutaneous insertion into a body cavity, comprising: a valve ring having a compressible diameter biased toward an expanded position, leaflets pivotally disposed within said valve ring for movement from an open position to a closed position, wherein said valve ring includes a first plurality of arcuate tubes and a second plurality of arcuate tubes telescopically disposed in said first tubes, and wherein said second tubes at each end include spring loaded projections extended outward, said first tubes include at each end a lip extending inward, wherein said projections engage said lip in order to prevent disconnection of said first and second tubes.
Claim 28
Dependent Claim
107 words
A venous valve device for percutaneous insertion into a body cavity, comprising: a valve ring having a compressible diameter biased toward an expanded position, leaflets pivotally disposed within said valve ring for movement from an open position to a closed position, wherein said valve ring includes a first plurality of arcuate tubes and a second plurality of arcuate tubes telescopically disposed in said first tubes, and wherein said second tubes at each end include spring loaded projections extended outward, said first tubes include at each end a lip extending inward, wherein said projections engage said lip in order to prevent disconnection of said first and second tubes.
Claim 29
Dependent Claim
80 words
A catheter device, comprising: a first catheter; an expandable member disposed at a lower end of said first catheter and further comprising separate plates attached to an inner surface of said first catheter; a second catheter disposed within said first catheter; and a scale included on said device; wherein said second catheter being advanced within said first catheter causes said expandable member to move to an expanded position, wherein said expanded position corresponds to a diameter measurement on said scale.
Claim 30
Dependent Claim
80 words
A catheter device, comprising: a first catheter; an expandable member disposed at a lower end of said first catheter and further comprising separate plates attached to an inner surface of said first catheter; a second catheter disposed within said first catheter; and a scale included on said device; wherein said second catheter being advanced within said first catheter causes said expandable member to move to an expanded position, wherein said expanded position corresponds to a diameter measurement on said scale.
Claim 31
Dependent Claim
92 words
A catheter device, comprising: a first catheter; an expandable member disposed at a lower end of said first catheter, said expandable member further comprising separate plates attached to an inner surface of said first catheter and a spring disposed around outer edges of said plates; a second catheter disposed within said first catheter; and a scale included on said device; wherein said second catheter being advanced within said first catheter causes said expandable member to move to an expanded position, wherein said expanded position corresponds to a diameter measurement on said scale.
Claim 32
Dependent Claim
92 words
A catheter device, comprising: a first catheter; an expandable member disposed at a lower end of said first catheter, said expandable member further comprising separate plates attached to an inner surface of said first catheter and a spring disposed around outer edges of said plates; a second catheter disposed within said first catheter; and a scale included on said device; wherein said second catheter being advanced within said first catheter causes said expandable member to move to an expanded position, wherein said expanded position corresponds to a diameter measurement on said scale.
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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) | 2004-11-19 | 2005-05-21 | 2005-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-11-19 | 2009-05-21 | 2009-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-11-19 | 2013-05-21 | 2013-11-20 | $7700.00 | Window Closed / Lapsed |