Electric bone drill capable of achieving continuous needle insertion

Abstract

The invention discloses an electric bone drill capable of achieving continuous needle insertion. The electric bone drill comprises a bone drill shell, a driving mechanism and a transmission mechanismwhich are connected are arranged in the bone drill shell, the front end of the transmission mechanism is sleeved with a positioning and clamping mechanism used for centering and clamping the end of akirschner wire, and repeated change of the clamping part of the kirschner wire is avoided. The front end of the bone drill shell is sleeved with a guiding and positioning mechanism which is coaxial with the positioning and clamping mechanism and used for guiding and centering the kirschner wire. Due to the fact that the positioning clamping mechanism is clamped at the end of the kirschner wire, the kirschner wire can generate certain bending deformation in the drilling process, the guiding positioning mechanism is arranged at the front end of the bone drill shell, the kirschner wire is corrected, guided and centered, and it is guaranteed that the kirschner wire is fed along the axis. All mechanisms of the electric bone drill capable of achieving continuous needle insertion are simple in connection and easy to disassemble and assemble, and the bone drill can be conveniently disinfected in all directions after being used.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an electric bone drill capable of continuously inserting needles. Background technique [0002] In orthopedic surgery, it is often necessary to use electric bone drills with Kirschner wires to connect broken bones. When in use, the Kirschner wire is clamped by the drill chuck on the electric bone drill, and the Kirschner wire is driven to drill into the bone. However, after the Kirschner wire at the front end is drilled in each time, the machine needs to be stopped, the drill chuck is unclamped, the electric bone drill is moved backward relative to the Kirschner wire, and then clamped again. The Kirschner wire is drilled into the bone by multiple intermittent feeds. During use, the repeated clamping of the Kirschner wires will not only easily cause the eccentricity of the Kirschner wires, making the drilling process unstable, but also easily pinch the surface of the...

AI Technical Summary

Problems solved by technology

During use, the repeated clamping of the Kirschner wires will not only easily cause the eccentricity of the Kirschner wires, making the drilling process unstable, but also easily pinch the surface of the Kirschner wires, which is not conducive to the progress of the operation process and prolongs the operation. It shortens the operation time, increases the workload of medical staff, and also increases the suffering of patients.

In addition, due to the complex structure of the existing electric bone drill, it is difficult to disassemble and fully disinfect, which increases the risk of infection for patients

Images