US2705493A
Expired / Lapsed
US
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Extracorporeal circulation device pumping system
Assignee: Jefferson Medical College of Philadelphia
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Filing: 1952-04-09
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Granted: 1955-04-05
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Expires: 1972-04-09
Abstract
No abstract record available.
Inventors
- 👤 Gustav V A Malmros
- 👤 John R Engstrom
- 👤 Donald K Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:23
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/3624; A61M1/3601; A61M1/3603; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN OXYGENATED BLOOD RECIRCULATION SYSTEM FOR EXTRACORPOREAL CIRCULATION DEVICES HAVING A VENOUS BLOOD OXYGENATING UNIT WITH A VENOUS BLOOD INPUT LOCALITY AND OXYGENATED BLOOD OUTPUT LOCALITY, MEANS FOR PUMPING VENOUS BLOOD FROM A SOURCE THEREOF INTO SAID UNIT AND MEANS FOR PUMPING OXYGENATED BLOOD FROM SAID UNIT IN RETURN TO THE SOURCE THEREOF COMPRISING RECIRCULATION PUMPING MEANS DISPOSED BETWEEN SAID VENOUS BLOOD PUMPING MEANS AND SAID OXYGENATING UNIT FOR PUMPING THE VENOUS BLOOD OUTPUT OF SAID VENOUS BLOOD PUMPING MEANS INTO SAID OXYGENATING UNIT AND BLOOD TRANSMITTING MEANS CONNECTING THE OXYGENATED BLOOD OUTPUT LOCALITY OF SAID OXYGENATING UNIT WITH SAID RECIRCULATION PUMPING MEANS FOR PERMITTING RECIRCULATION OF PORTIONS OF THE OXYGENATED BLOOD THROUGH SAID OXYGENATING UNIT.
Claim 2
Dependent Claim
116 words
AN OXYGENATED BLOOD RECIRCULATION SYSTEM FOR EXTRACORPOREAL CIRCULATION DEVICES HAVING A VENOUS BLOOD OXYGENATING UNIT WITH A VENOUS BLOOD INPUT LOCALITY AND OXYGENATED BLOOD OUTPUT LOCALITY, MEANS FOR PUMPING VENOUS BLOOD FROM A SOURCE THEREOF INTO SAID UNIT AND MEANS FOR PUMPING OXYGENATED BLOOD FROM SAID UNIT IN RETURN TO THE SOURCE THEREOF COMPRISING RECIRCULATION PUMPING MEANS DISPOSED BETWEEN SAID VENOUS BLOOD PUMPING MEANS AND SAID OXYGENATING UNIT FOR PUMPING THE VENOUS BLOOD OUTPUT OF SAID VENOUS BLOOD PUMPING MEANS INTO SAID OXYGENATING UNIT AND BLOOD TRANSMITTING MEANS CONNECTING THE OXYGENATED BLOOD OUTPUT LOCALITY OF SAID OXYGENATING UNIT WITH SAID RECIRCULATION PUMPING MEANS FOR PERMITTING RECIRCULATION OF PORTIONS OF THE OXYGENATED BLOOD THROUGH SAID OXYGENATING UNIT.
References Cited (Backward Citations)
FR546947A
Cited
US2607828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |