US3099260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heart pump apparatus
Assignee: Davol Rubber Co
•
Filing: 1960-02-09
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Granted: 1963-07-30
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Expires: 1980-02-09
Abstract
No abstract record available.
Inventors
- 👤 William C Birtwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:14
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1037; F04B53/1047; F04B53/106; F04B53/1065; A; A61; A61M; A61M60/00; A61M60/10; A61M60/104; A61M60/109; A61M60/113; A61M60/20; A61M60/247; A61M60/253; A61M60/258; A61M60/30; A61M60/36; A61M60/38; A61M60/40; A61M60/424; A61M60/427; A61M60/435; A61M60/50; A61M60/508; A61M60/562; A61M60/569; A61M60/80; A61M60/845; A61M60/851; F04B43/00; F04B43/0009; F04B43/0081; F04B43/009; F04B43/08; F04B43/10; F04B43/107; A61M2205/00; A61M2205/33; A61M2205/3303; A61M2205/3331; A61M2205/3334; A61M60/855; A61M60/89; A61M60/892; A61M60/894; Y; Y10; Y10S; Y10S128/00; Y10S128/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN A PUMPING SYSTEM FOR USE IN MAINTAINING EXTRACORPOREAL CIRCULATION, A PUMPING UNIT INCLUDING A FLEXIBLE BODY HAVING AN INLET AND OUTLET COMMUNICATING WITH THE INTERIOR THEREOF AND FURTHER COMMUNICATING WITH THE CIRCULATION SYSTEM OF THE PATIENT, MEANS FOR SEQUENTIALLY DEFORMING SAID FLEXIBLE BODY TO PRODUCE A PUMPING ACTION THEREIN, SAID DEFORMING MEANS INCLUDING AN INCOMPRESSIBLE LIQUID THAT IS CONFINED WITHIN AN ENCLOSURE AND IS ADAPTED TO CONTACT THE EXTERIOR SURFACES OF SAID BODY UNDER PRESSURE TO CAUSE DEFORMATION THEREOF, AND MEANS RESPONSIVE TO THE PUMPING ACTION OF THE PATIENT''S HEART FOR SEQUENTIALLY CONTROLLING THE OPERATION OF SAID DEFORMING MEANS WHEREBY SAID PUMPING UNIT IS CAUSED TO PRODUCE A PUMPING ACTION IN SYNCHRONIZATION WITH THE PUMPING ACTION OF THE PATIENT''S HEART, SAID CONTROLLING MEANS INCLUDING MEANS FOR DELAYING THE SYSTOLIC PULSE OF THE PUMPING UNIT BEHIND THE SYSTOLIC PULSE OF THE PATIENT''S HEART, WHEREIN THE SYSTOLIC PULSE OF THE PUMP IS PHASED WITH THE SYSTOLIC PULSE OF THE PATIENT''S HEART IN ACCORDANCE WITH THE NORMAL TIME DELAYS EXISTING THEREBETWEEN.
Claim 2
Dependent Claim
169 words
IN A PUMPING SYSTEM FOR USE IN MAINTAINING EXTRACORPOREAL CIRCULATION, A PUMPING UNIT INCLUDING A FLEXIBLE BODY HAVING AN INLET AND OUTLET COMMUNICATING WITH THE INTERIOR THEREOF AND FURTHER COMMUNICATING WITH THE CIRCULATION SYSTEM OF THE PATIENT, MEANS FOR SEQUENTIALLY DEFORMING SAID FLEXIBLE BODY TO PRODUCE A PUMPING ACTION THEREIN, SAID DEFORMING MEANS INCLUDING AN INCOMPRESSIBLE LIQUID THAT IS CONFINED WITHIN AN ENCLOSURE AND IS ADAPTED TO CONTACT THE EXTERIOR SURFACES OF SAID BODY UNDER PRESSURE TO CAUSE DEFORMATION THEREOF, AND MEANS RESPONSIVE TO THE PUMPING ACTION OF THE PATIENT''S HEART FOR SEQUENTIALLY CONTROLLING THE OPERATION OF SAID DEFORMING MEANS WHEREBY SAID PUMPING UNIT IS CAUSED TO PRODUCE A PUMPING ACTION IN SYNCHRONIZATION WITH THE PUMPING ACTION OF THE PATIENT''S HEART, SAID CONTROLLING MEANS INCLUDING MEANS FOR DELAYING THE SYSTOLIC PULSE OF THE PUMPING UNIT BEHIND THE SYSTOLIC PULSE OF THE PATIENT''S HEART, WHEREIN THE SYSTOLIC PULSE OF THE PUMP IS PHASED WITH THE SYSTOLIC PULSE OF THE PATIENT''S HEART IN ACCORDANCE WITH THE NORMAL TIME DELAYS EXISTING THEREBETWEEN.
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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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |