A kind of electric bone drill capable of continuously inserting needles

Abstract

The invention discloses an electric bone drill capable of continuous insertion of needles, which comprises a bone drill housing, in which a driving mechanism and a transmission mechanism are connected, and the front end of the transmission mechanism is equipped with a device for centering and The clamping positioning and clamping mechanism avoids repeated changes to the clamping position of the Kirschner wire. The front end of the bone drill housing is covered with a guiding and positioning mechanism that is coaxial with the positioning and clamping mechanism and guides and centers the Kirschner wire. Because the positioning and clamping mechanism is clamped at the end of the Kirschner wire, the Kirschner wire may have a certain bending deformation during drilling. Therefore, a guiding and positioning mechanism is provided at the front end of the bone drill housing to correct and guide the Kirschner wire. And centering to ensure that the Kirschner wire feeds along the axis. The continuous needle type electric bone drill has simple connection between various mechanisms, easy disassembly and assembly, and is convenient for all-round disinfection of the bone drill after use.

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

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