Preparation device of lipid ultrasonic microbubble contrast agent

The invention discloses a preparation device of a lipid ultrasonic microbubble contrast agent. The preparation device comprises a connecting base, sealing assemblies, a perfluoropropane gas cylinder,piston assemblies, a vacuum pump and needle bodies, wherein the connecting base comprises a connecting plate and pipe bodies arranged at the bottom of the connecting plate; the upper end of each pipebody is communicated with an insertion opening in the connecting plate; scale lines are arranged on the outer wall of each pipe body; each sealing assembly comprises a top plate, a guiding sleeve, a bottom plate and a sealing ball; the top plate and the bottom plate are arranged in a corresponding pipe body; a first through hole is formed in the top plate; a second through hole is formed in the bottom plate, the guiding sleeve is arranged between the top plate and the bottom plate; a third through hole is formed in the outer wall of the guiding sleeve; the sealing ball is arranged in the guiding sleeve for sealing the