Method and device for deployment of a sub-pericardial sack

Details Method and device for deployment of a sub-pericardial sack Method and device for deployment of a sub-pericardial sack

2005-05-31

2009-11-24

Lacyk, John P (Department: 3735)

Surgery

Internal organ support or sling

Reexamination Certificate

active

07621866

ABSTRACT:
Various methods and devices for deploying a sub-pericardial sack about at least a portion of a heart to alleviate congestive heart failure. A medical device housing the sub-pericardial sack is inserted into the pericardial sack. An inverted umbrella framework is deployed through the medical device and into the pericardial sack to position the sub-pericardial sack adjacent the heart. The umbrella framework is then retracted through the medical device once the cardiac assist device is placed adjacent the heart. A steerable catheter can instead be deployed through the pericardial sack to deploy and position a cardiac assist device, such as a mesh, around the heart. The steerable catheter is covered by a sheath housing the cardiac assist device. Once the sheath is pulled back, the cardiac assist device is deployed and secured adjacent the heart. Filaments or tensions wires are used to tighten the mesh around the heart.

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