Abstract: An adsorption head includes a body. The body is a hollow housing, one side of the housing to which an adsorbed object is adsorbed is provided with an opening. The body comprises at least one adsorption chamber and at least one operation chamber therein, wherein the operation chamber and the adsorption chamber are spaced from each other and each have an opening orientated to the adsorbed object. The body has at least one adsorption passage and at least one operation passage thereon, wherein one end of the adsorption passage is communicated with the adsorption chamber, and one end of the operation passage is communicated with the operation chamber.

Abstract: A therapeutic device, therapeutic system and therapeutic method for myocardium repair, wherein the therapeutic device comprises a treatment needle for piercing the heart to release a therapeutant. The treatment needle includes a needle body (5a), the interior of the needle body (5) has a therapeutant conveying cavity, an end of the needle body (5a) is a needle (5b) which can pierce the myocardium and guide the needle body (5a) to pass through the myocardium, and the needle (5b) has a therapeutant output port which is connected to the therapeutant conveying cavity. The therapeutic device enters into the myocardium in a minimally invasive manner to release the therapeutant to the vicinity of the lesion to improve myocardial function or activity and prevent further deterioration of the disease.