Medical adhesive, conveying device and conveying system

The invention discloses a medical adhesive, a conveying device and a conveying system.The conveying device comprises a marking catheter and a glue injection pipe, and the marking catheter is connected with the glue injection pipe; the conveying system comprises the conveying device, the first joint of the glue injection pipe at the end part of the glue injection pipe is connected with a glue injector, and the glue injector comprises a glue injection cavity, a buckle ring, a glue injection piston, a piston latch and a glue outlet hole; the glue injector is connected with a glue gun connecting groove in the end part of the glue gun through a glue injector cylinder seat at the end part of the glue injector; and the other end of the glue injection piston is connected with a driven rack in the glue gun. The spring is adopted as an elastic part of the glue gun, so that the glue gun has the characteristic of fatigue resistance, and the service life is prolonged; quantitative extrusion and repeated use can be realize