Mitral balloon closing plate obstruction body implanted via tip of heart and implantation method

The invention discloses a mitral balloon closing plate obstruction body implanted via the tip of the heart in the technical field of systemic heart repair and an implantation method. A balloon closing plate is made from an elastic plastic material capable of being filled with gas or solidifiable liquid, is implanted through a small incision of a left chest of a human body, enters a left ventricle via the tip of the heart, and is put and fixed to a regurgitation hole in the closing part of the front and back valve leaflets of a mitral valve; during diastole, the mitral valve is opened, and blood flows into the left ventricle from a left atrium through two channels between the front valve leaflet and the balloon closing plate and between the back valve leaflet and the balloon closing plate; during systole, the front and back valve leaflets are closed, and the edges of the valve leaflets closely fit the balloon closing plate, so that a regurgitation channel of the mitral valve is obstructed and the regurgitation of the mitral valve is effectively prevented; and the balloon closing plate obstruction body is simple in structure and high in reliability, the wound on the human body is small in the implantation method for the balloon closing plate obstruction body, the occurrence rate of residual regurgitation is very low, the diseases such as functional mitral regurgitation and the like can be treated, and the success rate of functional mitral regurgitation repair reaches more than 90%.