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US5084064A
Expired / Lapsed
US
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Surgical cuff
Assignee: Abiomed Inc
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Filing: 1989-06-15
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Granted: 1992-01-28
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Expires: 2009-06-15
Abstract
Abstract A vascular connector has a rough surfaced skirt which is trimmed to a size for surgical attachment, and a smooth central tube centrally extending through the skirt to a point upstream of the rough surface. A collar centrally affixed to the skirt releasably engages the tube, which in turn may be fabricated as a permanently attached input conduit of a total artificial heart. For installing the connectors, a skeletal frame fixture secures the central tubes or collars of plural connectors in defined positions corresponding to the attachment ports of the intended pump device.
Inventors
- 👤 Jacob H. Barak
- 👤 Alan R. Millner
- 👤 Robert T. V. Kung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:24
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/196; A61M60/80; A61M60/855; A61M60/857; A61M60/859; A61M60/861; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30108; A61F2002/30199; A61F2002/30205; A61F2002/30217; A61F2002/30316; A61F2002/30329; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0063; A61F2230/0067
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
A cuff structure for surgical attachment to define a fluid tight blood flow connection, such structure comprising a flexible skirt having inner and outer faces with a rough surface on the inner face and an impermeable biocompatible material on the outer face a collar centrally affixed to said skirt, and a flow tube centrally connected to and projecting through said skirt, said flow tube including a tube segment separably connected to said collar and having a portion which is smooth and non-thrombogenic, said portion projecting past said rough surface on said inner face whereby when the skirt is attached to tissue with said inner face facing a blood flow the cuff structure forms a non-occluding and non-thrombogenic blood flow connection.
Claim 2
Dependent Claim
120 words
A cuff structure for surgical attachment to define a fluid tight blood flow connection, such structure comprising a flexible skirt having inner and outer faces with a rough surface on the inner face and an impermeable biocompatible material on the outer face a collar centrally affixed to said skirt, and a flow tube centrally connected to and projecting through said skirt, said flow tube including a tube segment separably connected to said collar and having a portion which is smooth and non-thrombogenic, said portion projecting past said rough surface on said inner face whereby when the skirt is attached to tissue with said inner face facing a blood flow the cuff structure forms a non-occluding and non-thrombogenic blood flow connection.
Claim 3
Dependent Claim
15 words
A cuff structure according to claim 1, further comprising a valve in said tube segment.
Claim 4
Dependent Claim
18 words
A cuff structure according to claim 1, wherein said skirt is dimensioned for attachment to a human atrium.
Claim 5
Dependent Claim
17 words
A cuff structure according to claim 1, wherein said rough surface is formed of a surgical fabric.
Claim 6
Dependent Claim
26 words
A cuff structure according to claim 1, wherein said impermeable biocompatible material has an elastic property for forming a fluid tight seal about sutures passing therethrough.
Claim 7
Dependent Claim
20 words
A cuff structure according to claim 1, wherein said tube segment is connected to the collar by a releasable detent.
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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) | 1995-01-27 | 1995-07-29 | 1996-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-27 | 1999-07-29 | 2000-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-27 | 2003-07-29 | 2004-01-28 | $7700.00 | Window Closed / Lapsed |