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Tapping drill bit for orthopaedic medical inner and outer fixation instrument

A drill and instrument technology, applied in the field of tapping drills, can solve the problems of iatrogenic injury, long operation time, inconvenient operation, etc., and achieve the effect of relieving pain, shortening operation time, and fast operation

Inactive Publication Date: 2016-05-11
阎新民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a possibility of causing iatrogenic injury, the operation time is long, the operation is inconvenient, and the patient has to bear greater pain

Method used

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  • Tapping drill bit for orthopaedic medical inner and outer fixation instrument
  • Tapping drill bit for orthopaedic medical inner and outer fixation instrument
  • Tapping drill bit for orthopaedic medical inner and outer fixation instrument

Examples

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Embodiment Construction

[0012] The specific implementation manner of the present invention will be further described below in conjunction with the examples given in the accompanying drawings.

[0013] Such as Figure 1-3 As shown, the tapping drill bit used by the orthopedic medical internal and external fixation device of the present invention includes a three-jaw circular grasp for maintaining the fracture alignment after reduction, and the tapping drill bit for drilling the threaded bone hole at the fracture alignment position is clamped. The drill jig of this tapping drill bit, quickly replace the quick connector of this drill jig, send the bone nail or bone pin to the grasping nail elastic sleeve in the threaded bone hole, and unscrew it out of the threaded bone hole The unscrewing tube of the broken bone screw or broken bone needle in the screw-out tube is matched with the left-right straight twist rod or left-right ratchet twist rod, and the left-right straight twist rod or left-right ratchet ...

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Abstract

The invention relates to a tapping drill bit for an orthopaedic medical inner and outer fixation instrument. The tapping drill bit comprises a three-claw annular gripper for maintaining reset bone fracture alignment and a tapping drill bit body for drilling a threaded bone hole in a bone fracture alignment position. The tapping drill bit is characterized by consisting of a drill pipe section, a tapping section and a drill bit section which are coaxial; each of the tapping section and the drill bit section is provided with trisection communicated spiral chip discharge grooves using the respective axial line as the center; and the outer diameter of a main cutting edge of the drill bit section is identical to the root diameter of thread marks of a screw tap. The tapping drill bit has the advantages that the iatrogenic injury on facial soft tissues by the drill bit can be reduced; meanwhile, the drill bit can be made into various different specifications so as to adapt to different patients; the pain of the patients is reduced; and the operation is fast and safe.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical instruments, in particular to a tapping drill used for orthopedic medical internal and external fixation instruments. Background technique [0002] At present, various orthopedic medical devices for the treatment of extremities, intertrochanteric fractures and femoral neck fractures have made a lot of progress, such as the invention patent ZL200710012279.5 "Single-sided adjustable external fixator and its combined use device"; invention patent ZL200810012533.6 "Functional Combined Fixator for Distal Radius Fracture", all of which provide good orthopedic medical devices. During the installation of orthopedic medical internal and external fixation instruments for operation, corresponding special tools are required to cooperate with it, so as to receive better operation results. Among the currently used tools, electric drills are used to drill bone holes, but the loading and unloading of ...

Claims

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Application Information

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IPC IPC(8): A61B17/16
Inventor 阎新民
Owner 阎新民
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