Surgery – Cardiac augmentation – Aortic balloon pumping
Reexamination Certificate
2011-04-19
2011-04-19
Bockelman, Mark W (Department: 3766)
Surgery
Cardiac augmentation
Aortic balloon pumping
Reexamination Certificate
active
07927268
ABSTRACT:
A method for mechanically assisting the pumping action of the heart. A catheter is provided comprising an elongate member having a proximal end, a distal region, an expandable member attached in the distal region, and an inflatable member in the distal region and attached distal the expandable member. The catheter is advanced into the aorta. The expandable member is expanded to at least partially obstruct the aorta. The inflatable member is inflated during diastole. The inflatable member is then deflated during the ejection phase of the left ventricle while expansion of the expandable member is maintained. The pumping action of the heart is thereby mechanically assisted. Cerebral perfusion augmentation may also be achieved by use of combined coarctation-counterpulsation devices and methods. Devices for practicing methods with increased volume-displacement efficiency are also described.
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Barbut Denise R.
Keith Peter T.
St. Germain Jon P.
Bockelman Mark W
Coaxia, Inc.
O'Melveny & Myers LLP
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