Systems for heart treatment
Described are devices and methods for treating degenerative, congestive heart disease and related valvular dysfunction. Percutaneous and minimally invasive surgical tensioning structures offer devices that mitigate changes in the ventricular structure (i.e., remodeling) and deterioration of global left ventricular performance related to tissue damage precipitating from ischemia, acute myocardial infarction (AMI) or other abnormalities. These tensioning structures can be implanted within various major coronary blood-carrying conduit structures (arteries, veins and branching vessels), into or through myocardium, or into engagement with other anatomic structures that impact cardiac output to provide tensile support to the heart muscle wall which resists diastolic filling pressure while simultaneously providing a compressive force to the muscle wall to limit, compensate or provide therapeutic treatment for congestive heart failure and/or to reverse the remodeling that produces an enlarged heart.
1. A method of treating a heart with a venous tree adjacent said heart, said method comprising:
introducing into said venous tree, a support device comprising a proximal anchor, a distal anchor, and an elongate member adapted to be engaged in tension between said anchors,
deploying said support device,
wherein tension is applied between said anchors by said elongate member, and wherein support force output of said device is adjusted during support device deployment.
2. The method of claim 1 , wherein said elongate member is tightened after securing said anchors to adjust said force output.
3. The method of claim 1 , wherein at least said distal anchor is secured in the coronary sinus of said heart.
4. The method of claim 1 , performed percutaneously.
5. The method of claim 1 , wherein said elongate member tension is further adjusted post-operatively.
6. The method of claim 1 , wherein elongate member flexibility is increased to adjust said force output.
7. The method of claim 6 , wherein flexibility is increased by releasing at least one tension spring.
8. The method of claim 1 , wherein a detent means is employed to effect said force output adjustment.
9. The method of claim 1 , wherein a delivery catheter for said support device includes means for a physician to adjust said support device.
10. The method of claim 1 , wherein said distal anchor is positioned and secured in a vessel adjacent said heart.