Patent US3175555A successfully refreshed from Google Patents.
US3175555A
Expired / Lapsed
US
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Apparatus for treating blood
Assignee: Abbott Laboratories
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Filing: 1962-09-21
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Granted: 1965-03-30
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Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Wilfred C Ling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:48
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/32; A61M1/322; A61M1/325; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
IN AN APPARATUS FOR TREATING BLOOD, AN OXYGENATING COLUMN HAVING MEANS TO INTRODUCE THE BLOOD TO BE TREATED INTO THE COLUMN AND TO MAINTAIN THE SURFACE LEVEL OF SAID BLOOD IN SAID COLUMN IN EXCESS OF A PREDETERMINED HEIGHT, SAID COLUMN ALSO HAVING MEANS TO INTRODUCE OXYGEN INTO THE BLOOD IN SAID COLUMN AND MEANS TO DISCHARGE CARBON DIOXIDE AND EXCESS OXYGEN RISING FROM THE SURFACE OF SAID BLOOD; A SURFACE-ACTIVE DEFOAMING MEANS IN CONTACT WITH THE OXYGENATED BLOOD IN SAID COLUMN; A FILTER CHAMBER IN JUXTAPOSITION TO SAID COLUMN, SAID CHAMBER HAVING SAID WALLS OF A HEIGHT IN EXCESS OF THE NORMAL LEVEL OF THE BLOOD THEREIN, THE PORTION OF SAID CHAMBER ABOVE SAID LEVEL BEING VENTED WHEREBY CARBON DIOXIDE AND OXYGEN BUBBLES ESCAPING FROM THE BLOOD IN SAID CHAMBER WILL BE DISSIPATED, SAID CHAMBER HAVING A FILTERING SCREEN THEREIN DIVIDING SAID CHAMBER INTO TWO COMPARTMENTS; A PASSAGEWAY BETWEEN ONE OF SAID COMPARTMENTS OF SAID CHAMBER AND SAID COLUMN, SAID PASSAGEWAY BEING AT A HEIGHT TO RECEIVE BLOOD FROM SAID COLUMN BELOW THE SURFACE LEVEL OF THE BLOOD THEREIN AND TO DISCHARGE THE BLOOD BELOW THE SURFACE LEVEL OF THE BLOOD IN THE CHAMBER; AND AN OUTLET CONNECTION ON SAID CHAMBER IN COMMUNICATION WITH THE OTHER OF THE COMMPARTMENTS BELOW THE LEVEL OF THE BLOOD IN SAID OTHER COMPARTMENT.
Claim 2
Dependent Claim
220 words
IN AN APPARATUS FOR TREATING BLOOD, AN OXYGENATING COLUMN HAVING MEANS TO INTRODUCE THE BLOOD TO BE TREATED INTO THE COLUMN AND TO MAINTAIN THE SURFACE LEVEL OF SAID BLOOD IN SAID COLUMN IN EXCESS OF A PREDETERMINED HEIGHT, SAID COLUMN ALSO HAVING MEANS TO INTRODUCE OXYGEN INTO THE BLOOD IN SAID COLUMN AND MEANS TO DISCHARGE CARBON DIOXIDE AND EXCESS OXYGEN RISING FROM THE SURFACE OF SAID BLOOD; A SURFACE-ACTIVE DEFOAMING MEANS IN CONTACT WITH THE OXYGENATED BLOOD IN SAID COLUMN; A FILTER CHAMBER IN JUXTAPOSITION TO SAID COLUMN, SAID CHAMBER HAVING SAID WALLS OF A HEIGHT IN EXCESS OF THE NORMAL LEVEL OF THE BLOOD THEREIN, THE PORTION OF SAID CHAMBER ABOVE SAID LEVEL BEING VENTED WHEREBY CARBON DIOXIDE AND OXYGEN BUBBLES ESCAPING FROM THE BLOOD IN SAID CHAMBER WILL BE DISSIPATED, SAID CHAMBER HAVING A FILTERING SCREEN THEREIN DIVIDING SAID CHAMBER INTO TWO COMPARTMENTS; A PASSAGEWAY BETWEEN ONE OF SAID COMPARTMENTS OF SAID CHAMBER AND SAID COLUMN, SAID PASSAGEWAY BEING AT A HEIGHT TO RECEIVE BLOOD FROM SAID COLUMN BELOW THE SURFACE LEVEL OF THE BLOOD THEREIN AND TO DISCHARGE THE BLOOD BELOW THE SURFACE LEVEL OF THE BLOOD IN THE CHAMBER; AND AN OUTLET CONNECTION ON SAID CHAMBER IN COMMUNICATION WITH THE OTHER OF THE COMMPARTMENTS BELOW THE LEVEL OF THE BLOOD IN SAID OTHER COMPARTMENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |