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US 7,404,793 B2Granted
Heart failure treatment device and method
AssigneeParacor Medical, Inc.
InventorsLilip Lau, Anuja Patel
Life of this patent
Estimating the term…
Abstract
A method and apparatus for treating heart failure is configured to be placed about at least a portion of a patient's heart to apply a mild compressive force on the heart over a range of elastic deformation of the apparatus. The apparatus can be shifted to second range of deformation. In some embodiments, the apparatus is shifted to the second range of deformation by application of a stimulus or alteration of environmental conditions beyond a threshold level.
Claims12
A cardiac harness for treating a heart, comprising:
- a cardiac harness formed from nitinol material and having a premounted size, wherein the premounted size harness is at rest, and a mounted size, wherein the mounted size harness is elastically deformed from the premounted size harness and applies a therapeutic compressive force on the heart;
- and
- the cardiac harness premounted size being about 25% to about 70% smaller than the mounted size.
A cardiac harness for treating a diseased heart, comprising:
- a cardiac harness formed from nitinol material and having a premounted size and a mounted size;
- the cardiac harness premounted size being about 25% to about 70% less than the size of the heart prior to the harness being mounted on the heart;
- and
- the cardiac harness being configured so that the harness is elastically deformed as the harness is mounted on the heart thereby automatically applying a compressive force on the heart that does not exceed 20 mm Hg.
1 more element
Dependencies are inferred from the claim text.