Surgery – Cardiac augmentation
Patent
1996-10-31
1998-10-27
Jastrzab, Jeffrey R.
Surgery
Cardiac augmentation
A61B 1900
Patent
active
058271716
ABSTRACT:
A circulatory assist device, having an outer balloon and an inner balloon, with a control space between the outer and inner balloons. The device is mounted on a catheter, collapsed to a sufficiently small diameter to allow insertion into the vascular system of a patient. An expansion mechanism in the device, such as a stent, can be expanded to hold the outer balloon in an expanded state, while control fluid is pumped into and evacuated from the control space to repeatedly collapse and expand the inner balloon. At least one port is formed in the inner balloon, to allow vascular fluid to enter and exit the inner balloon as the inner balloon expands and contracts. After use, the expansion mechanism is contracted to a smaller diameter to allow withdrawal from the vascular system.
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Dobak III John D.
Ghaerzadeh Kambiz
Jastrzab Jeffrey R.
Momentum Medical, Inc.
Spinks Gerald W.
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