US5405383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulated heart pump and method of use
Assignee: First Fidelity Bank NA New Jersey
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Filing: 1994-01-19
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Granted: 1995-04-11
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Expires: 2014-01-19
Abstract
Abstract An articulated, intravascular pump having multiple pump sections linked together for relative motion and driven by a common drive cable is disclosed. Each pump section is relatively short, so that it may easily pass through bends in an insertion catheter, the iliofemoral artery and the aorta artery. Disposed in the aortic arch during operation, the pump includes means for selectively directing the discharge blood flow from each pump section to inlets of major arteries branching from the arch.
Inventors
- 👤 Irwin R. Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:55
CPC Classifications
A; A61; A61M; A61M60/00; A61M60/40; A61M60/403; A61M60/408; A61M60/411; A61M60/414; A61M60/10; A61M60/122; A61M60/126; A61M60/13; A61M60/20; A61M60/205; A61M60/216; A61M60/50; A61M60/508; A61M60/515; A61M60/531; A61M60/538; A61M60/80; A61M60/802; A61M60/804; A61M60/855; A61M60/857; A61M60/859; A61M60/871; A61M60/88; A61M60/148
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
158 words
A method of augmenting the flow rate of blood from a heart comprising the steps of: a. inserting into an artery an intravascular pump comprising: i. first and second pump sections, each pump section having: (1) a housing having an inlet and an outlet; and (2) an impeller rotatably mounted within said housing; ii. a link member coupled to said first pump section and to said second pump section and permitting relative movement of said first and second pump sections; and iii. a flexible drive member coupled to said impeller contained in each of said first and second pump sections; b. moving said first and second pump sections along said artery until said pump sections are disposed adjacent the outlet of a ventricle of the heart: and c. rotating said impellers with said flexible drive to draw blood into said inlet of each of said housings and discharge the blood from said outlet of each of said housings.
Claim 2
Independent Claim
158 words
A method of augmenting the flow rate of blood from a heart comprising the steps of: a. inserting into an artery an intravascular pump comprising: i. first and second pump sections, each pump section having: (1) a housing having an inlet and an outlet; and (2) an impeller rotatably mounted within said housing; ii. a link member coupled to said first pump section and to said second pump section and permitting relative movement of said first and second pump sections; and iii. a flexible drive member coupled to said impeller contained in each of said first and second pump sections; b. moving said first and second pump sections along said artery until said pump sections are disposed adjacent the outlet of a ventricle of the heart: and c. rotating said impellers with said flexible drive to draw blood into said inlet of each of said housings and discharge the blood from said outlet of each of said housings.
Claim 3
Dependent Claim
36 words
The method of claim 1, further comprising the step of directing the blood discharged from said outlet of one of said housings toward an artery branching from the vessel in which said intravascular pump is disposed.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein said intravascular pump is disposed in the aortic arch and adjacent the left ventricle of the heart.
Claim 5
Dependent Claim
131 words
A circulatory assist system for use in a patient comprising: a. an intravascular pump having: i. first and second pump sections, each pump section having: (1) a housing having an inlet and an outlet; and (2) an impeller rotatably mounted within said housing; and ii. a link member coupled to said first pump section and to said second pump section and permitting relative movement of said first and second pump sections; b. a drive member coupled to said impeller contained in each of said first and second pump sections; c. a motor for rotating said drive member; d. an insertion catheter for connection to an artery and providing a passage for said drive member into the artery; and e. means for securing said insertion catheter and said motor to the patient.
Claim 6
Dependent Claim
131 words
A circulatory assist system for use in a patient comprising: a. an intravascular pump having: i. first and second pump sections, each pump section having: (1) a housing having an inlet and an outlet; and (2) an impeller rotatably mounted within said housing; and ii. a link member coupled to said first pump section and to said second pump section and permitting relative movement of said first and second pump sections; b. a drive member coupled to said impeller contained in each of said first and second pump sections; c. a motor for rotating said drive member; d. an insertion catheter for connection to an artery and providing a passage for said drive member into the artery; and e. means for securing said insertion catheter and said motor to the patient.
Claim 7
Dependent Claim
15 words
The circulatory assist system of claim 4 wherein said impeller is a screw thread impeller.
Claim 8
Dependent Claim
15 words
The circulatory assist system of claim 4 wherein said impeller is a bladed turbine rotor.
Claim 9
Dependent Claim
28 words
The circulatory assist system of claim 4 further comprising means for directing the flow of blood discharged from said outlet of said housing of said first pump section.
Claim 10
Dependent Claim
17 words
The circulatory assist system of claim 7 wherein said directing means is disposed on said link member.
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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) | 1998-04-10 | 1998-10-10 | 1999-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-10 | 2002-10-10 | 2003-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-10 | 2006-10-10 | 2007-04-11 | $7700.00 | Window Closed / Lapsed |