Patent US3327322A successfully refreshed from Google Patents.
US3327322A
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US
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Artificial heart powered by a fluid pressure pump means simulating the action of the human heart
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1964-07-27
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Granted: 1967-06-27
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 Samuel H Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:16
CPC Classifications
A; A61; A61M; A61M60/00; A61M60/40; A61M60/424; A61M60/427; A61M60/10; A61M60/122; A61M60/196; A61M60/80; A61M60/855; A61M60/89; A61M60/892; A61M60/894
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN ARTIFICAL HEART COMPRISING, A RIGID FRAME HAVING A COMMON WALL AND INCLUDING SIDE WALLS ON OPPOSITE SIDES OF SAID COMMON WALL AND FORMING TOGETHER THEREWITH TWO CONICAL CHAMBERS, SAID SIDE WALLS HAVING TWO PORTS FORMED THEREIN FOR EACH RESPECTIVE CHAMBER, HEART VALVES IN SAID PORTS, A PUMPING DIAPHRAGM FOR EACH CHAMBER COMPRISING A THICKENED STIFF CENTER PORTION AND A THINNER FLEXIBLE OUTER PORTION OVERLYING A CORRESPONDING ONE OF SAID SIDE WALLS, THEREBY CLOSING THE CHAMBER TO FORM A VENTRICLE, A CUP-SHAPED COVER MEMBER MADE OF FLEXIBLE MATERIAL AND ARRANGED OUTWARDLY OF EACH SAID PUMPING DIAPHRAGM, EACH SAID COVER HAVING A PERIPHERAL FLANGE OVERLYING ONE OF SAID SIDE WALLS AND HAVING MEANS FOR RECEIVING A BIASING PRESSURE THEREIN FROM A SOURCE OF INCREASED PRESSURE, AND A CORD MEANS TIGHTLY FASTENING SAID COVERS AND SAID PUMPING DIAPHRAGMS TO SAID FRAME, THEREBY TO FORM SAID HEART.
Claim 2
Dependent Claim
143 words
A COMBINATION PUMP AND ARTIFICAL HEART FOR PUMPING BLOOD WHICH INCLUDES MEANS FORMING A CLOSED CONTROL FLUID CIRCUIT, A PUSH-PULL GAS PUMP FOR DRIVING A SUPPLY OF CONTROL FLUID IN SAID FIRST CLOSED CIRUCIT, FLEXIBLE CASING MEANS AT ONE POINT IN SAID FIRST CLOSED CIRCUIT FOR CONFINING THE FLUID BUT BEING FLEXIBLY RESPONSIVE TO CHANGES IN VOLUME AS A FUNCTION OF THE PUSHING AND PULLING ACTION OF THE FLUID IN THE CIRCUIT, AND MEANS FOR PARALLELING A BLOOD CIRCULATORY CIRCUIT WITH SAID FIRST CIRCUIT COMPRISING A FLEXILY RESPONSIVE CASING FORMING A CHAMBER HAVING A COMMON WALL WITH SAID FLEXIBLY RESPONSIVE CASING IN SAID FIRST CLOSED CIRCUIT, AND MEANS FORMING VALVE CONTROLLED CONDUITS COMMUNICATING WITH SAID CHAMBER, WHEREBY WHATEVER BLOOD IS RECEIVED IN SAID CHAMBER WILL BE PUMPED, THE FLEXIBILITY OF THE CASING MEANS EQUALIZING ANY DIFFERENCE IN PRESSURE OR VOLUME THAT MAY EXIST.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |