A method for controlling the circumference of internal anatomic passages corrects physiologic dysfunctions resulting from a structural orifice or lumen which is either too large or too small. Implants are disclosed which employ various means for adjusting and maintaining the size of an orifice to which...http://www.google.es/patents/US7455690?utm_source=gb-gplus-sharePatente US7455690 - Methods for controlling the internal circumference of an anatomic orifice or lumen
Methods for controlling the internal circumference of an anatomic orifice or ...
