
US Patent No: 6,716,241
Number of patents in Portfolio can not be more than 2000
Venous valve and graft combination
Stats
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Apr 6, 2004
Issued date -
Mar 5, 2002
filing date -
10/090,895
serial no -
Expired
status
Importance
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Abstract
A synthetic venous valve and graft combination that exerts no radial force at the valve site is disclosed. The trilobed valve (11) is passively actuated by venous blood pressure changes. When open, the aperture for blood flow is approximately that of the original vein. The prosthesis is useful for replacing nonfunctioning venous valves in the human vasculature.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,126,686 Artificial vascular valves | 170 | 1999 | |
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| 6,168,614 Valve prosthesis for implantation in the body | 312 | 1998 | |
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| 5,957,949 Percutaneous placement valve stent | 368 | 1997 | |
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| 5,509,930 Stentless heart valve | 44 | 1993 | |
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| 6,315,793 Prosthetic venous valves | 17 | 1999 | |
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| 5,358,518 Artificial venous valve | 99 | 1993 | |
| 5,607,465 Percutaneous implantable valve for the use in blood vessels | 72 | 1994 | |
| 5,545,215 External sigmoid valve complex frame and valved conduit supported by the same | 43 | 1994 | |
| 6,319,281 Artificial venous valve and sizing catheter | 62 | 1999 | |
| 6,241,763 In situ venous valve device and method of formation | 22 | 1999 | |
| 6,299,637 Transluminally implantable venous valve | 195 | 1999 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 6, 2015 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |