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Selective treatment of endocardial/myocardial boundary
| Details |
Inventors: Mueller, Richard L.;
Assignee: Eclipse Surgical Technologies, Inc. (Sunnyvale, CA)
Primary Examiner: Dvorak; Linda C. M.
Assistant Examiner: Gibson; Roy
Attorney, Agent or Firm: Castaneda; Janet Kaiser, Janofsky; Ilene Lapidus
A method for treating myocardium using at least one mechanical or electromagnetic energy functional device for forming a network of branched, interconnecting passages in a boundary between endocardium and myocardium, thereby enhancing blood flow into the treated zone, and a device for selectively treating ischemic myocardium tissue comprising a tube having proximal end and distal end, and at least one hollow lumen and defining an axis, at least two mechanical or electromagnetic energy functional devices disposed within the tube, the at least two mechanical or electromagnetic energy functional devices each having a distal end disposed adjacent the distal end of the central tube, and a deflecting member adjacent the distal portion of the central tube for deflecting the distal end of each of the at least two mechanical or electromagnetic energy functional devices away from the axis, for enabling treatment of selective areas of ischemic or hibernating myocardium tissue. |
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DETAILED DESCRIPTION Thus, it is an advantage of the present invention to provide an apparatus and method of use for selective myocardial revascularization, which overcomes the limitations of the prior art.
It is another advantage of the present invention to provide an apparatus and method especially adapted for selective treatment of hibernating tissue, infarct-damaged or other types of tissue best treated selectively.
It is a further advantage of the present invention to provide an apparatus with one or more fiber optic laser delivery means for effecting selective treatment of the endocardial/myocardial boundary.
It is a further advantage of the present invention to provide a catheter apparatus for placement within a heart chamber, organ aperture or other body opening, the apparatus having at least one lumen for guiding an energy delivery device or mechanical device to selected surfaces of the heart, heart chamber, organ aperture or other body opening for treatment thereon, particularly adapted for selective treatment of the endocardial/myocardial boundary.
Yet an additional advantage and object of the present invention is to provide a multiple channel type surgical or minimally invasive surgical apparatus for percutaneous, surgical or minimally invasive surgical use for creation of a plurality of stimulation zones or myocardial channels co-extending from a single epicardial, myocardial or endocardial point or position.
Another advantage and object of the present invention is to provide a surgical apparatus for performing selective treatment from an epicardial surface.
It is a further advantage of the present invention to provide an optimized amount of trauma or means of injury specific to or within a boundary, such as between endocardium and myocardium, or between infarct and non-infarct boundaries, naturally provided with ventricular blood via the highly vascularized endocardium.
Another advantage of the present invention is to treat boundary regions by minimizing or otherwise preventing undesirable and unnecessary lasing or other mechanical damage to existing endocardium, or epicardium, to gain access to the boundary region by piercing through the endocardium or epicardium to a depth which allows creation of the injury only at the selected boundary region
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