Sucking disc type tissue traction device

The utility model discloses a suction cup type tissue retractor which comprises a main body mechanism, a negative pressure mechanism and a pressure relief mechanism, the negative pressure mechanism is used for generating negative pressure in a silica gel suction cup, the pressure relief mechanism is used for conducting pressure relief on the interior of the silica gel suction cup, and a micro negative pressure pump and a silica gel hose are combined for use. The cover body and the sealing block are combined for use, so that negative pressure is generated in the silica gel hose and the silica gel suction cup, the silica gel suction cup is powerfully adhered to the surface of tissue under the action of suction force of the negative pressure, a surgeon can effectively grab the surface of the tissue, the difficulty of an operation is reduced, then the ovary position is positioned, and the operation is convenient to implement; the through hole, communicated with the silica gel hose, in the connecting plate can be