Suction Tube for Abortion and Using Method Thereof

A method of using suction tube for abortion, comprising:

• providing a suction tube for abortion, comprising a tube body, wherein the tube body comprises a first cavity and a second cavity, the first cavity is a suction cavity, having an inlet for sucking from the body and an outlet for discharging to the outside of the body;
• and the second cavity also comprises an inlet for connecting with the inside body and an outlet for connecting with the outside, wherein the outlet is connected with the fluid in the external environment through a first conduit and a second conduit, wherein the first conduit can only connect with the fluid in a one-way manner from the outside to the second cavity, and the second conduit can only connect with the fluid in a one-way manner from the second cavity to the outside;
• wherein a gas pressure sensor is provided respectively in the suction cavity and the adjustment cavity, and the sensors connect with the controller and the host machine, wherein the controller connects with the device for extracting air from the suction cavity, and the air inlet device for letting gas enter the first conduit;
• When the inlets of the first suction cavity and the second adjustment cavity of the suction tube for abortion enter the uterus, the host machine automatically starts a mode, in this mode, the initial value of the gas pressure sensor in the suction cavity should be maintained less than that in the adjustment cavity.