A catheter system and methods for repairing a valvular annulus or an annular organ structure of a patient comprising sandwiching and compressing the annulus and applying heat sufficient to shrink or tighten tissue surrounding the annulus defect....http://www.google.es/patents/US6485489?utm_source=gb-gplus-sharePatente US6485489 - Catheter system for repairing a mitral valve annulus
Catheter system for repairing a mitral valve annulus