Cardiac coronary artery limitng exposure device

The utility model relates to a new heart coronary limit and unfold device which is composed of suction presser feet and a universal bracket. The suction presser feet has two presser feet leaves which are connected together by a bridge connecting piece and are inverted U shaped; the two presser feet leaves can deform, rotate along the shaft, let or resort the suture through and have subpressure cavity and subpressure channel; the spring clip of the supporting arm of the universal bracket, the rotating joint and the bended joint of a micro ridge position, a spring , a screw, a ratchet wheel inside the supporting base are connected together by a soft shaft of the wire rope; the supporting base are provided with a fixing claw, a sliding claw, a fixing handle and a control handle. The presser feet is arranged on the spring clip which is detachable. The utility model is applied to the on-pump beating heart. The supporting base is fixed on the sternal retractor; the supporting arm can drive the presser feet stretching, rotating, positioning in three dimensions, and being pressed on the surface of the heart crossing the coronary (subpressure supplying system is separately provided). The utility model can make the heartbeat partially stable, limit the coronary and fully unfold the sewing position of the coronary by using the suture stretches and shelters the incision involucra of the coronary, which operates the sew of the coronary conveniently, fast and accurately.