Invention is an ecarteur (100) which is used at open heart surgeries to make the mitral and tricuspid valves apparent during the surgical operation, characterized in that, it comprises an outer tube (110), an inner tube (120) placed to the inner part of the outer tube (110) wherein said inner tube (110) has a smaller diameter than the diameter of said outer tube (120), a great number of tissue pushers (130) are constituted in a manner that they can move along the outer tube (110).
