Abstract: The present disclosure relates to methods and systems for aligning annuloplasty rings during surgical procedures and selectively engaging portions of the targeted annuli. Specifically, the disclosure is directed to methods and systems for aligning an annuloplasty ring or a toroidal portion thereof with natural fiducials present at or near an annular target, and engaging the annulus at the points aligned with the natural fiducials.

Abstract: The present disclosure relates to methods and systems for aligning annuloplasty rings during surgical procedures and selectively engaging portions of the targeted annuli. Specifically, the disclosure is directed to methods and systems for aligning an annuloplasty ring or a toroidal portion thereof with natural fiducials present at or near an annular target, and engaging the annulus at the points aligned with the natural fiducials.

Abstract: The present disclosure relates to methods and systems for aligning annuloplasty rings during surgical procedures and selectively engaging portions of the targeted annuli. Specifically, the disclosure is directed to methods and systems for aligning an annuloplasty ring or a toroidal portion thereof with natural fiducials present at or near an annular target, and engaging the annulus at the points aligned with the natural fiducials.

Abstract: Systems, devices and methods for treating a stenosed vessel or heart valve are disclosed. In some embodiments, a cutting/scoring assembly/device for treating a stenosed vessel/heart valve is provided and includes a main, elongated scoring sleeve or element with multiple longitude wires arranged at a distal end. A distal end of the elongated element is proximal to the multiple longitude wires which, when used in conjunction with a balloon catheter, is used to for, according to some embodiments, localized controlled longitudinal vessel incision.

Abstract: A biodegradable stent is comprised of a stereocomplex of polylactide enantiomers. The unique characteristics of stereocomplex polymers allows for the stent to have variable material characteristics along its length, while retaining uniform geometry. Thus, the stent is designed to be flexible upon insertion through the blood vessels while still retaining its rigidity and support upon expansion within the vessel. Furthermore, the material characteristics can be manipulated such that high strengths are possible even with small thicknesses of struts within the stent.

Abstract: A device and method is provided for protecting the renal system from contrast dyes injected into the circulatory system during procedures such as angiograms and angioplasty. The device includes a catheter having a draining portion and an occluding portion. The device is inserted into the coronary sinus at a predetermined time, the occluding portion is inflated, and the contrast-injected blood is diverted. This blood may be reintroduced into the coronary arteries several times.