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Minimally invasive restorer for tibial plateau collapse fracture blocks

A tibial platform and reducer technology, which is applied in the field of medical devices, can solve the problems of insufficient jacking of fracture fragments, achieve the effects of shortening the operation time, expanding the end area, and ensuring the jacking effect

Active Publication Date: 2019-11-12
THE FIRST AFFILIATED HOSPITAL OF WENZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a minimally invasive reducer for tibial plateau collapsed fracture fragments, which can overcome the shortcoming of insufficient jacking up of collapsed fracture fragments

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  • Minimally invasive restorer for tibial plateau collapse fracture blocks
  • Minimally invasive restorer for tibial plateau collapse fracture blocks
  • Minimally invasive restorer for tibial plateau collapse fracture blocks

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Face", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

[0025] refer to Figure 1-8 As shown, a minimally invasive reducer for tibial plateau collapse fracture fragments includes a push rod body 1, which is arranged in a tubular structure, and the push rod body 1 includes coaxially arranged sliding holes 11, and the sliding holes 11 The cross-section of the drive rod 12 is arranged in a regular polygonal structure, and the sliding hole 11 is connected with a drive rod 12 whose cross-section is a regular po...

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Abstract

The invention discloses a minimally invasive restorer for tibial plateau collapse fracture blocks. The technical scheme is characterized in that the restorer comprises a top bar body, a sliding hole is formed in the top bar body, a driving rod is connected in the sliding hole in a sliding manner, the circumferential outer side wall of the driving rod is attached to the circumferential inner side wall of the sliding hole, a plurality of top plates are hinged on the outer side wall of the end of the driving rod, one end of the top plate in the length direction is hinged with the end edge of thedriving rod, the other end of the top plate is hinged with one end of the support plate in the length direction, the other end of the support plate in the length direction is hinged with the end, extending into the medullary cavity, of the top bar body, the number of the top plates is consistent with that of outer side surfaces of the driving rod, each top plate surrounds the circumferential outerside wall of the driving rod, a drive nut in threaded connection with the driving rod is arranged at the end, away from one end extending into the medullary cavity, of the top bar body, and the drivenut axially limits and is circumferentially rotationally connected onto the top bar body. The restorer can overcome the defect that collapse fracture blocks are jacked insufficiently.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a minimally invasive resetter for tibial plateau collapsed fracture fragments. Background technique [0002] High-violence injuries can easily lead to tibial plateau collapse and fracture, and poor reduction can easily lead to unstable force lines, which can cause traumatic arthritis and bring great pain to patients. In order to solve the tibial plateau collapse fracture, during the operation, the operator needs to "open a window" in the tibial diaphysis under the tibial plateau (removing part of the cortex with a bone knife), and then insert the top rod through the bone tunnel to the lower part of the tibial plateau, The collapsed articular cartilage is jacked up, and then bone grafted for fixation. [0003] However, the above-mentioned surgical repair method for the tibial plateau collapse area has the disadvantage that: since the front end of the mandrel is the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/56
CPCA61B17/56A61B2017/564
Inventor 陈春陈雷吴存造林垂聪
Owner THE FIRST AFFILIATED HOSPITAL OF WENZHOU MEDICAL UNIV
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