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A micro-cannula Kirschner wire fixation device for metacarpal bone fracture fixation

A fixation device and metacarpal bone fracture technology, applied in the field of medical equipment, can solve the problems of functional exercise, large trauma, and injury affecting patients, and achieve the effects of early functional exercise, small trauma, and small blood supply damage

Inactive Publication Date: 2016-06-08
王加利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Metacarpal fracture is a common clinical disease. The existing fixation methods are micro-plate fixation or traditional Kirschner wire (or Kirschner wire) longitudinal fixation. The former has complications such as large trauma and the need for a second operation to remove the plate, while the latter has complications that affect patients. Functional exercise factors lead to functional impairment. Although traditional Kirschner wire coronal transverse fixation can solve the above problems, it has not been widely used in clinical practice because of the interosseous muscle damage caused by the traditional Kirschner wire drilling into the metacarpal bone.

Method used

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  • A micro-cannula Kirschner wire fixation device for metacarpal bone fracture fixation
  • A micro-cannula Kirschner wire fixation device for metacarpal bone fracture fixation
  • A micro-cannula Kirschner wire fixation device for metacarpal bone fracture fixation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 2 , The first hollow cylindrical miniature sleeve 31 with internal thread at the end and serrated front end, the first Kirschner wire 51 with puncture head with external thread at the end, the two threads are consistent, the first Kirschner needle with puncture head 51 extends into the first micro-cannula 31, so that one end of the first Kirschner wire 51 with a puncture head coincides with the front end of the first micro-cannula 31, and the middle part is screwed into a whole through a thread to form the first micro-cannula Kirschner wire 61.

Embodiment 2

[0020] Such as image 3 , A second hollow cylindrical miniature sleeve 32 with a serrated front end with jaws at the end, a second Kirschner wire 52 with a puncture head with a wedge at the end, and a second Kirschner wire 52 with a puncture head extending into the first In the two micro cannulas 32, one end of the second Kirschner wire with a puncture head is overlapped with the front end of the second micro cannula 31, and the middle is clamped together to form a whole to form the second micro cannula Kirschner wire 62.

Embodiment 3

[0022] Such as Figure 4 , The third miniature sleeve 33 with external thread, the third Kirschner wire with puncture head 53 with external thread, and the nut 7 with double thread. The front end of the third microcannula 33 overlaps with the front end of the third Kirschner wire 53 with a puncture head, and the middle part is connected and fixed as a whole by a nut 7 to form a third microtube Kirschner wire 63.

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Abstract

A minitype sleeve kirschner wire fixing device used for fixing a fracture of the metacarpal bone comprises a kirschner wire with puncture heads at the two ends, a minitype sleeve guider, a hollow cylindrical minitype sleeve with the zigzag front end, a first minitype sleeve core and a second minitype sleeve core. The minitype sleeve guider is composed of a handle and a hollow cylindrical guide sleeve with the zigzag front end, the handle is movably connected with the guide sleeve, the first minitype sleeve core and the second minitype sleeve core are kirschner wires with caps at the tail ends, and the minitype sleeve and the kirschner wire with the puncture heads are combined to form a minitype sleeve kirschner wire. The minitype sleeve kirschner wire fixing device used for fixing the fracture of the metacarpal bone aims to reduce damage to the interosseus during surgical method operation and popularize the coronal transverse fixing technology for the fracture of the metacarpal bone.

Description

Technical field [0001] The invention relates to the technical field of medical devices, in particular to a miniature sleeve Kirschner wire fixing device for metacarpal fracture fixation. Background technique [0002] Metacarpal fracture is a common clinical disease. The existing fixation methods are mini-plate fixation or traditional Kirschner wire (or Schanz wire) longitudinal fixation. The former has complications such as severe trauma and the need for secondary surgery to remove the plate, while the latter affects patients Functional exercise factors lead to dysfunction. Although the use of traditional Kirschner wire coronal fixation can solve the above problems, because the traditional Kirschner wire has interosseous muscle damage during the process of drilling into the metacarpal bone, it has not been promoted in clinical use. Summary of the invention [0003] In order to overcome the above drawbacks, the present invention designs a miniature sleeve Kirschner wire fixation de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/86A61B17/68
CPCA61B17/68A61B17/86A61B17/864A61B17/8685A61B2017/564
Inventor 王加利
Owner 王加利
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