The invention discloses an intrathoracic
cardiac compression device. The intrathoracic
cardiac compression device comprises a positioning plate, an air sac and a gas transporting
pipe, wherein a chestwall fixing part for positioning the positioning plate on the inner side of the left side chest wall of a
human body is arranged on the positioning plate; the air sac is fixed on the inner side of the positioning plate and communicates with the gas transporting
pipe; and the air sac is inflated through the gas transporting
pipe to expand facing a left
ventricle of the heart and gradually press the surface of the left
ventricle. According to the intrathoracic
cardiac compression device disclosed by the invention, avoiding influencing the development of normal functions of the heart is facilitated, and when the heart normally beats, the intrathoracic cardiac
compression device cannot separate from the heart; when cardiac compression is needed, the air sac is inflated through the gas transporting pipe and gradually expands, in the expanding process, the air sac is gradually close to the left
ventricle to form compression on the left ventricle, after compression achieves a certain degree,the air sac is deflated through the gas transporting pipe to be contracted, in the contracting process, the air sac gradually be away from the left ventricle, then the left ventricle returns, and thecirculation is performed, so that an intrathoracic cardiac compression measure in a certain frequency is formed.