US3208448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial heart pump circulation system
Assignee: Individual
•
Filing: 1962-02-02
•
Granted: 1965-09-28
•
Expires: 1982-02-02
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:53
CPC Classifications
A; A61; A61M; A61M60/00; A61M60/40; A61M60/424; A61M60/427; A61M60/435; A61M60/10; A61M60/104; A61M60/122; A61M60/196; A61M60/50; A61M60/508; A61M60/538; A61M60/546; A61M60/562; A61M60/80; A61M60/845; A61M60/851; A61M60/855; A61M60/857; A61M60/89; A61M60/892; A61M60/894; Y; Y10; Y10S; Y10S128/00; Y10S128/03; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/2234; Y10T137/2278; Y10T137/2322; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN AN ARTIFICIAL HEART PUMP CIRCULATION SYSTEM: A FLUID AMPLIFIER COMPRISING A FLUID POWER INPUT CHANNEL, POWER ORIFICE MEANS CONNECTED TO SAID INPUT CHANNEL FOR PROVIDING A POWER JET, FIRST AND SECOND OUTPUT CHANNELS IN FLUID COMMUNICATION WITH SAID POWER JET, AND CONTROL ORIFICE MEANS FOR PROVIDING FLUID CONTROL SIGNALS ADJACENT TO SAID POWER JET FOR DIRECTING SID POWER JET INTO EITHER OF SAID OUTPUT CHANNELS; PUMP MEANS COMPRISING A BODY HAVING A CAVITY THEREIN AND A DIAPHRAGM SUSPENDED WITHIN SAID CAVITY TO SEPARATE SAID CAVITY INTO A PUMPED FLUID CHAMBER AND A POWER FLUID CHAMBER, SAID PUMPED FLUID CHAMBER BEING ADAPTED TO RECEIVE BLOOD FROM THE VENOUS SYSTEM; FIRST MEANS CONNECTING SAID FIRST OUTPUT CHANNEL TO SAID POWER FLUID CHAMBER; AND SECOND MEANS CONNECTING AID POWER FLUID CHAMBER TO SAID CONTROL ORIFICE MEANS FOR PROVIDING A FEEDBACK SIGNAL FOR TEMPORARILY DIVERTING SAID POWER JET FROM SAID FIRST OUTPUT CHANNEL TO SAID SECOND OUTPUT CHANNEL, WHEREBY SAID PUMPED FLUID CHAMBER IS ADAPTED TO PROVIDE BLOOD TO THE ARTERIAL SYSTEM.
Claim 2
Dependent Claim
169 words
IN AN ARTIFICIAL HEART PUMP CIRCULATION SYSTEM: A FLUID AMPLIFIER COMPRISING A FLUID POWER INPUT CHANNEL, POWER ORIFICE MEANS CONNECTED TO SAID INPUT CHANNEL FOR PROVIDING A POWER JET, FIRST AND SECOND OUTPUT CHANNELS IN FLUID COMMUNICATION WITH SAID POWER JET, AND CONTROL ORIFICE MEANS FOR PROVIDING FLUID CONTROL SIGNALS ADJACENT TO SAID POWER JET FOR DIRECTING SID POWER JET INTO EITHER OF SAID OUTPUT CHANNELS; PUMP MEANS COMPRISING A BODY HAVING A CAVITY THEREIN AND A DIAPHRAGM SUSPENDED WITHIN SAID CAVITY TO SEPARATE SAID CAVITY INTO A PUMPED FLUID CHAMBER AND A POWER FLUID CHAMBER, SAID PUMPED FLUID CHAMBER BEING ADAPTED TO RECEIVE BLOOD FROM THE VENOUS SYSTEM; FIRST MEANS CONNECTING SAID FIRST OUTPUT CHANNEL TO SAID POWER FLUID CHAMBER; AND SECOND MEANS CONNECTING AID POWER FLUID CHAMBER TO SAID CONTROL ORIFICE MEANS FOR PROVIDING A FEEDBACK SIGNAL FOR TEMPORARILY DIVERTING SAID POWER JET FROM SAID FIRST OUTPUT CHANNEL TO SAID SECOND OUTPUT CHANNEL, WHEREBY SAID PUMPED FLUID CHAMBER IS ADAPTED TO PROVIDE BLOOD TO THE ARTERIAL SYSTEM.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |