US3733616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetically actuated artificial heart
Assignee: Individual
•
Filing: 1971-05-03
•
Granted: 1973-05-22
•
Expires: 1991-05-03
Abstract
Abstract An artificial heart pump which utilizes a plurality of electromagnets to alternately repel and attract a corresponding plurality of permanent magnets mounted on two flexible membranes each of which forms one of the heart''s two ventricle chambers.
Inventors
- 👤 F Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:08
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/0063; A; A61; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/196; A61M60/40; A61M60/424; A61M60/457; A61M60/462; A61M60/50; A61M60/508; A61M60/515; A61M60/80; A61M60/855; A61M60/89; A61M60/892; F04B43/02; F04B43/04; F04B43/08; A61M60/126; A61M60/148; A61M60/20; A61M60/247; A61M60/253; A61M60/268; A61M60/894
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
165 words
An artificial heart comprising: 1. a rigid shell means defining at least a right ventricle chamber and a left ventricle chamber; 2. a right ventricle flexible bag positioned within said right ventricle chamber, said bag defining a blood containing chamber; 3. a left ventricle flexible bag positioned within said left ventricle chamber, said bag defining another blood containing chamber; 4. inlet and outlet unidirectional fluid valve means fluidly coupled to said right ventricle flexible bag; 5. inlet and outlet unidirectional fluid valve means fluidly coupled to said left ventricle flexible bag; 6. means forming a plurality of individual magnetic poles spaced along a substantial area on the exterior surface of each of said right and left ventricle flexible bags; 7. a plurality of individual electromagnetic means positioned on said shell means at spaced points along an area overlying said magnetic poles area for generating electromagnetic fields which interact with the magnetic fields of said magnetic poles; and, 8. means for cyclically energizing said electromagnetic means.
Claim 2
Dependent Claim
165 words
An artificial heart comprising: 1. a rigid shell means defining at least a right ventricle chamber and a left ventricle chamber; 2. a right ventricle flexible bag positioned within said right ventricle chamber, said bag defining a blood containing chamber; 3. a left ventricle flexible bag positioned within said left ventricle chamber, said bag defining another blood containing chamber; 4. inlet and outlet unidirectional fluid valve means fluidly coupled to said right ventricle flexible bag; 5. inlet and outlet unidirectional fluid valve means fluidly coupled to said left ventricle flexible bag; 6. means forming a plurality of individual magnetic poles spaced along a substantial area on the exterior surface of each of said right and left ventricle flexible bags; 7. a plurality of individual electromagnetic means positioned on said shell means at spaced points along an area overlying said magnetic poles area for generating electromagnetic fields which interact with the magnetic fields of said magnetic poles; and, 8. means for cyclically energizing said electromagnetic means.
Claim 3
Dependent Claim
32 words
The artificial heart of claim 1 wherein said means for forming a plurality of magnetic poles on the exterior surface of each of said flexible bags comprises a plurality of permanent magnets.
Claim 4
Dependent Claim
18 words
a right ventricle flexible bag positioned within said right ventricle chamber, said bag defining a blood containing chamber;
Claim 5
Dependent Claim
18 words
a right ventricle flexible bag positioned within said right ventricle chamber, said bag defining a blood containing chamber;
Claim 6
Dependent Claim
35 words
a right atrium flexible bag positioned within said right atrium chamber, said bag having an inlet and an outlet with the outlet fluidly coupled to the inlet valve means for said right ventricle flexible bag;
Claim 7
Dependent Claim
35 words
a right atrium flexible bag positioned within said right atrium chamber, said bag having an inlet and an outlet with the outlet fluidly coupled to the inlet valve means for said right ventricle flexible bag;
Claim 8
Dependent Claim
21 words
means for fluidly coupling the outlet of said right atrium chamber to said right ventricle inlet unidirectional fluid valve means; and,
Claim 9
Dependent Claim
21 words
means for fluidly coupling the outlet of said right atrium chamber to said right ventricle inlet unidirectional fluid valve means; and,
Claim 10
Dependent Claim
35 words
a left atrium flexible bag positioned within said left atrium chamber, said bag having an inlet and an outlet with the outlet fluidly coupled to the inlet valve means for said left ventricle flexible bag;
Claim 11
Dependent Claim
35 words
a left atrium flexible bag positioned within said left atrium chamber, said bag having an inlet and an outlet with the outlet fluidly coupled to the inlet valve means for said left ventricle flexible bag;
Claim 12
Dependent Claim
20 words
means for fluidly coupling the outlet of said left atrium chamber to said left ventricle inlet unidirectional fluid valve means.
Claim 13
Dependent Claim
20 words
means for fluidly coupling the outlet of said left atrium chamber to said left ventricle inlet unidirectional fluid valve means.
Claim 14
Dependent Claim
18 words
a left ventricle flexible bag positioned within said left ventricle chamber, said bag defining another blood containing chamber;
Claim 15
Dependent Claim
18 words
a left ventricle flexible bag positioned within said left ventricle chamber, said bag defining another blood containing chamber;
Claim 16
Dependent Claim
29 words
The artificial heart of claim 2 further characterized by said permanent magnets being in abutting relation with the poles of said electromagnetic means when said electromagnetic means are de-energized.
Claim 17
Dependent Claim
15 words
inlet and outlet unidirectional fluid valve means fluidly coupled to said right ventricle flexible bag;
Claim 18
Dependent Claim
15 words
inlet and outlet unidirectional fluid valve means fluidly coupled to said right ventricle flexible bag;
Claim 19
Dependent Claim
32 words
The artificial heart of claim 1 further characterized by said energizing means cyclically energizing said electromagnetic means to cause repulsion between said electromagnetic fields and the magnetic fields of said magnetic poles.
Claim 20
Dependent Claim
21 words
means forming a plurality of magnetic poles on the exterior surface of each of said right and left atrium flexible bags;
Claim 21
Dependent Claim
21 words
means forming a plurality of magnetic poles on the exterior surface of each of said right and left atrium flexible bags;
Claim 22
Dependent Claim
15 words
inlet and outlet unidirectional fluid valve means fluidly coupled to said left ventricle flexible bag;
Claim 23
Dependent Claim
15 words
inlet and outlet unidirectional fluid valve means fluidly coupled to said left ventricle flexible bag;
Claim 24
Dependent Claim
42 words
a plurality of electromagnetic means positioned on said shell means for generating electromagnetic fields which interact with the magnetic fields of the magnetic poles on said right and left atrium flexible bags, said electromagnetic means being cyclically energized by said energizing means.
Claim 25
Dependent Claim
42 words
a plurality of electromagnetic means positioned on said shell means for generating electromagnetic fields which interact with the magnetic fields of the magnetic poles on said right and left atrium flexible bags, said electromagnetic means being cyclically energized by said energizing means.
Claim 26
Dependent Claim
25 words
The artificial heart of claim 1 wherein each of the outlet unidirectional fluid valve means is pre-loaded to open when a predetermined pressure is reached.
Claim 27
Dependent Claim
27 words
means forming a plurality of individual magnetic poles spaced along a substantial area on the exterior surface of each of said right and left ventricle flexible bags;
Claim 28
Dependent Claim
27 words
means forming a plurality of individual magnetic poles spaced along a substantial area on the exterior surface of each of said right and left ventricle flexible bags;
Claim 29
Dependent Claim
71 words
The artificial heart of claim 1 further characterized by at least a portion of each of said right and left ventricle flexible bags being in side-by-side relation with at least some of said electromagnetic means positioned therebetween and, with said right and left ventricle flexible bags having opposite magnetic polarities in the area of side-by-side relation so that both poles of the electromagnetic means can be utilized during each cyclical energization.
Claim 30
Dependent Claim
37 words
a plurality of individual electromagnetic means positioned on said shell means at spaced points along an area overlying said magnetic poles area for generating electromagnetic fields which interact with the magnetic fields of said magnetic poles; and,
Claim 31
Dependent Claim
37 words
a plurality of individual electromagnetic means positioned on said shell means at spaced points along an area overlying said magnetic poles area for generating electromagnetic fields which interact with the magnetic fields of said magnetic poles; and,
Claim 32
Dependent Claim
9 words
The artificial heart of claim 1 further characterized by:
Claim 33
Dependent Claim
9 words
The artificial heart of claim 1 further characterized by:
Claim 34
Dependent Claim
7 words
means for cyclically energizing said electromagnetic means.
Claim 35
Dependent Claim
7 words
means for cyclically energizing said electromagnetic means.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |