US5358518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial venous valve
Assignee: Individual
•
Filing: 1993-01-25
•
Granted: 1994-10-25
•
Expires: 2013-01-25
Abstract
Abstract An artificial venous valve with unidirectional flow, for insertion into the human venous system, biocompatible with the receiver, comprises a hollow elongated support and a plate carried by and within the hollow elongated support and movable relative to the support between a position to permit flow of blood in one direction and a position in which to prevent flow of blood in an opposite direction through the support. The plate is movable to open and close over a pressure differential range on opposite sides of the plate of 1-50 mm Hg.
Inventors
- 👤 Sante Camilli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:14
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2403; A61F2/2409; A61F2/2475; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/7875; Y10T137/7898
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
An artificial venous valve configured to allow unidirectional flow and to be inserted into a human venous system, biocompatible with the system, comprising: a hollow elongated support having a predetermined length with a periphery and a predetermined width, said length being greater than said width, said support having openings therethrough for suturing the valve to a vein said support having arcuate edges intersecting linear vertical edges in a longitudinal-lateral sectional view; and a plate carried by and within the support and movable relative to the support between a first position to permit flow of blood in one direction and a second position in which to prevent flow of blood in an opposite direction through said support, said plate in both of said first and second positions being disposed entirely within said support, said plate being movable to open and close over a pressure differential range on opposite sides of said plate of 1-50 mm Hg.
Claim 2
Dependent Claim
155 words
An artificial venous valve configured to allow unidirectional flow and to be inserted into a human venous system, biocompatible with the system, comprising: a hollow elongated support having a predetermined length with a periphery and a predetermined width, said length being greater than said width, said support having openings therethrough for suturing the valve to a vein said support having arcuate edges intersecting linear vertical edges in a longitudinal-lateral sectional view; and a plate carried by and within the support and movable relative to the support between a first position to permit flow of blood in one direction and a second position in which to prevent flow of blood in an opposite direction through said support, said plate in both of said first and second positions being disposed entirely within said support, said plate being movable to open and close over a pressure differential range on opposite sides of said plate of 1-50 mm Hg.
Claim 3
Dependent Claim
24 words
An artificial venous valve as recited in claim 1, wherein said plate opens and closes at a pressure differential of about 15 mm Hg.
Claim 4
Dependent Claim
21 words
An artificial venous valve as recited in claim 1, having a width of 4-14 mm and a length of 14-24 mm.
References Cited (Backward Citations)
US2292003A
Cited
US3312237A
Cited
US3673612A
Cited
US3717883A
Cited
US3744062A
Cited
US3877080A
Cited
US3969130A
Cited
US3903548A
Cited
DE2342102A1
Cited
US4218782A
Cited
US4178638A
Cited
US4373216A
Cited
US4406022A
Cited
US4535483A
Cited
US4643732A
Cited
US4759758A
Cited
SU1360724A1
Cited
US4829990A
Cited
US4851001A
Cited
US5032128A
Cited
US5080668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-24 | 1998-04-25 | 1998-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-24 | 2002-04-25 | 2002-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-24 | 2006-04-25 | 2006-10-25 | $7700.00 | Window Closed / Lapsed |