US4242883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liver preservation
Assignee: Henry Ford Hospital
•
Filing: 1979-04-02
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Granted: 1981-01-06
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Expires: 1999-04-02
Abstract
Abstract A method and apparatus for perfusing livers comprising a portable container and a liver receptacle removably positioned in such container. Portions of the receptacle are spaced from the walls of the container when the receptacle is in position so that ice may be positioned around the receptacle. A perfusate holder is mounted on the container. A second container surrounds a portion of the holder and is adapted to receive ice. An intermittently operated flow regulator controls gravity flow of perfusate at predetermined rate from the holder to the receptacle and a timer controls operation of controller at predetermined time intervals.
Inventors
- 👤 Luis H. Toledo-Pereyra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:56
CPC Classifications
A; A01; A01N; A01N1/00; A01N1/10; A01N1/14; A01N1/142; A01N1/143
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
An apparatus for perfusing livers comprising a portable container, a liver receptacle removably positioned in such container, portions of said receptacle being spaced from the walls of said container when the receptacle is in position so that ice may be positioned around the receptacle, a perfusate holder mounted on said container for containing perfusate at ambient pressure, a second container surrounding a portion of said holder and adapted to receive ice, an intermittently operated flow regulator for controlling flow of perfusate solely by gravity from said holder to said receptacle, a timer for controlling operation of said controller, said receptacle having an outlet.
Claim 2
Independent Claim
103 words
An apparatus for perfusing livers comprising a portable container, a liver receptacle removably positioned in such container, portions of said receptacle being spaced from the walls of said container when the receptacle is in position so that ice may be positioned around the receptacle, a perfusate holder mounted on said container for containing perfusate at ambient pressure, a second container surrounding a portion of said holder and adapted to receive ice, an intermittently operated flow regulator for controlling flow of perfusate solely by gravity from said holder to said receptacle, a timer for controlling operation of said controller, said receptacle having an outlet.
Claim 3
Dependent Claim
12 words
The apparatus set forth in claim 1 including handles on said receptacle.
References Cited (Backward Citations)
US3406531A
Cited
US3545221A
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US3607646A
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US3545225A
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US3810367A
Cited
US3753865A
Cited
US3914954A
Cited
US3777507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |