Indwelling device for intravenous delivery

The utility model discloses an indwelling device for intravenous delivery, which comprises a cylinder body, a catheter and a catheter, the needle body is arranged at the front end of the cylinder body and is communicated with the front end of the flow guide hole; the first sleeve body is arranged in the flow guide hole, and a first blocking part capable of being opened and closed is formed at the front end of the first sleeve body; the first guide pipe is used for stretching into the flow guide hole from the tail end of the cylinder body, the first guide pipe can penetrate through the first plugging part through axial movement, and a through hole is formed in the first guide pipe; the branch pipe is radially formed on the cylinder body, extends to the inner wall of the cylinder body and is opposite to the sleeve body of the first sleeve body; the second sleeve body is arranged in the branch pipe, and a second plugging part capable of being opened and closed is formed at the front end of the second sleeve body