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Skeletal external fixing device

An external fixation and bone technology, which is applied in the field of medical devices, can solve the problems of plastic parts being bent, achieve large contact stress, ensure positioning accuracy, and increase the contact area

Active Publication Date: 2020-11-17
WUHAN UNITED IMAGING HEALTHCARE SURGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide an external bone fixation device that can ensure the positioning accuracy of the steel needle to solve the problem that the steel needle is currently clamped by plastic parts and the plastic part is bent.

Method used

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Embodiment Construction

[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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Abstract

The invention provides a skeletal external fixing device. The skeletal external fixing device comprises a first frame; and a positioning assembly which is arranged on the first frame, and the positioning assembly is used for fixing a steel needle so as to increase the contact area of the steel needle and the first frame. After the steel needle is fixed to the first frame through the positioning assembly, the contact area of the steel needle and the first frame can be increased, and the stress condition of the first frame is improved. Deformation, cracks and the like of the first frame are avoided, the reliability of the first frame is improved, the positioning precision of the steel needle is guaranteed, and the bone reset effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a bone external fixation device. Background technique [0002] For the current 3D printing customized external fixation device, its outer frame is usually formed by plastic printing, which is a plastic part. The two plastic outer frames fix the steel needles in the way of clamping, and the separate outer frames are connected with screws, and the steel needles are clamped in the middle. However, when the steel needle is fixed in this way, the outer frame of the plastic is in direct contact with the steel needle, the contact area is small, and the contact stress is large. In order for the plastic part to clamp the steel needle, there will be a gap between the two plastic parts. The plastic part will be bent during installation, which affects the fixing accuracy, and the plastic part bears a large bending stress, which affects the positioning accuracy of the steel needl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/62
CPCA61B17/62
Inventor 李超宁张磊贺达黄琛
Owner WUHAN UNITED IMAGING HEALTHCARE SURGICAL TECH CO LTD
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