US Patent No: 5,776,190
Number of patents in Portfolio can not be more than 2000
Cannula pumps for temporary cardiac support and methods of their application and use
Stats
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Jul 7, 1998
Issued date -
Oct 19, 1994
filing date -
08/325,848
serial no -
In Force
status
Importance
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Abstract
A cannula pump is provided which incorporates a miniature rotary pump into a cardiac cannula of essentially the same size as currently utilized with routine cardiopulmonary bypass. The pump may be inserted via a single small incision in the heart to obtain both inflow and outflow cannulation simultaneously, and provide sufficient flow to completely unload the ventricle during its use. Because application of the device is extraordinarily simplified, it is suitable for rapid emergency insertion in any setting where the chest can be safely opened, including emergency room and battlefield applications. A small electric motor, implanted within the heart, provides power to the impeller via a small shaft supported on blood immersed bearings. A disposable cannula pump utilized with a reusable motor provides an inexpensive device for routine surgical use.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,625,712 High-capacity intravascular blood pump utilizing percutaneous access | 177 | 1983 | |
| 4,704,121 Anti-thrombogenic blood pump | 116 | 1983 | |
| 4,817,586 Percutaneous bloom pump with mixed-flow output | 125 | 1987 | |
| 4,846,152 Single-stage axial flow blood pump | 120 | 1987 | |
| 4,906,229 High-frequency transvalvular axisymmetric blood pump | 109 | 1988 | |
| 4,944,722 Percutaneous axial flow blood pump | 93 | 1989 | |
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| 5,049,134 Sealless heart pump | 87 | 1989 | |
| 5,118,264 Purge flow control in rotary blood pumps | 22 | 1990 | |
| 5,145,333 Fluid motor driven blood pump | 50 | 1990 | |
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| 4,964,864 Heart assist pump | 44 | 1988 | |
| 5,112,349 Heart assist pump | 50 | 1990 | |
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| 4,969,865 Helifoil pump | 57 | 1989 | |
| 5,112,292 Helifoil pump | 35 | 1990 | |
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| 4,779,614 Magnetically suspended rotor axial flow blood pump | 148 | 1987 | |
| 4,908,012 Chronic ventricular assist system | 123 | 1988 | |
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| 4,898,518 Shaft driven disposable centrifugal pump | 41 | 1988 | |
| 4,984,972 Centrifugal blood pump | 62 | 1989 | |
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| 5,346,458 Electrohydraulic energy converter for cardiac assist devices and artificial hearts | 27 | 1991 | |
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| 4,688,998 Magnetically suspended and rotated impellor pump apparatus and method | 157 | 1986 | |
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| 4,994,078 Intraventricular artificial hearts and methods of their surgical implantation and use | 127 | 1989 | |
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| 4,753,221 Blood pumping catheter and method of use | 82 | 1986 | |
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| 4,763,032 Magnetic rotor bearing | 81 | 1984 | |
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| 4,955,856 Method and apparatus for installing a ventricular assist device cannulae | 58 | 1989 | |
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| 4,589,822 Centrifugal blood pump with impeller | 63 | 1984 | |
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| 4,382,199 Hydrodynamic bearing system for a brushless DC motor | 79 | 1980 | |
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| 4,927,407 Cardiac assist pump with steady rate supply of fluid lubricant | 161 | 1989 | |
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| 5,147,388 Auxiliary artificial heart of the embedded-in-body type | 72 | 1991 | |
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| 4,507,048 Centrifugal clinical blood pump | 61 | 1982 | |
| 4,662,355 Pump regulation device | 28 | 1985 | |
| 4,895,493 Rotary pump | 21 | 1988 | |
| 4,957,504 Implantable blood pump | 131 | 1988 | |
| 4,995,857 Left ventricular assist device and method for temporary and permanent procedures | 162 | 1989 | |
| 5,092,879 Intraventricular artificial hearts and methods of their surgical implantation and use | 66 | 1990 | |
| 5,055,005 Fluid pump with levitated impeller | 91 | 1990 | |