Remaining needle protection structure

The utility model relates to the technical field of remaining needles, in particular to a remaining needle protection structure. Comprising an indwelling needle, a chassis base, a hollow pressing ball and a protective cover, the chassis base is of an annular structure, a connecting plate is fixedly connected to the outer side face of the chassis base, a connector part of the indwelling needle is fixedly connected to the connecting plate, a needle head part of the indwelling needle is placed in the chassis base, and the hollow pressing ball is movably placed in the hollow position in the chassis base; the protective cover is connected with the base plate seat, and the hollow pressing ball is arranged between the base plate seat and the protective cover. The problem that the indwelling needle is inconvenient to fix for a long time is solved, and the use comfort of the indwelling needle is improved for a user. The indwelling needle protection device is mainly applied to indwelling needle protection. 本实用新型涉及留置针技术