Aorta cannula used for puncturing through chest and applicable for heart minimally invasive surgery

Disclosed is an aorta cannula used for puncturing through a chest and applicable for a heart minimally invasive surgery. The aorta cannula used for puncturing through the chest and applicable for the heart minimally invasive surgery comprises a cannula body, a saccule, a connection sleeve, a puncturing inner core and a guiding steel wire, wherein the length of the puncturing inner core and the length of the guiding steel wire are larger than the length of the cannula body. The saccule is arranged at the front end of a segment, punctured into an aorta, of the saccule. The connection sleeve is installed at the tail end of the cannula body. The end surface of the front end of the cannula body is an oblique section with a puncturing function. An outer wall of the cannula body is provided with a scale. An inner hole of the cannula body is a blood transfusion channel. A spring ring is embedded in a cannula wall of the cannula body, and the cannula wall of the cannula body is provided with an air-conveying channel and a transfusion channel with a central line of the cannula body as the symmetry axis, wherein the air-conveying channel and the transfusion channel are in parallel to the central line of the cannula body. An air outlet of the air-conveying channel is located in the saccule, an air-conveying pipe is connected on an air inlet of the air-conveying channel, the air inlet of the air-conveying channel is provided with an indicating bladder, a liquid outlet of the transfusion channel is located behind the saccule, and a liquid inlet pipe is connected on a liquid inlet of the transfusion channel. The puncturing inner core and the guiding steel wire are used for being matched with the cannula body so as to conduct puncturing.