Surgery – Instruments – Light application
Reexamination Certificate
2005-10-04
2005-10-04
Farah, A. (Department: 3739)
Surgery
Instruments
Light application
C606S007000, C606S013000, C606S014000, C606S078000, C607S088000, C607S089000, C604S021000
Reexamination Certificate
active
06951557
ABSTRACT:
Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.
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DeVore Lauri
Ellis Louis
Hastings Roger N.
Lafontaine Daniel M.
Boston Scientific SciMed, Inc.
Farah A.
Kenyon & Kenyon
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