Methods and apparatus for decreasing cardiac pressure in a patient by implanting a shunt communicating with an area outside a first portion, whereby a volume of blood sufficient to reduce pressure in a first portion is released. Preferably, the end diastolic pressure in the left ventricle is reduced,...http://www.google.fr/patents/US8091556?utm_source=gb-gplus-shareBrevet US8091556 - Methods and apparatus for reducing localized circulatory system pressure
Methods and apparatus for reducing localized circulatory system pressure