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A minimally invasive reduction device for tibial plateau collapsed fracture fragments

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

Active Publication Date: 2021-07-09
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

Method used

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  • A minimally invasive reduction device for tibial plateau collapsed fracture fragments
  • A minimally invasive reduction device for tibial plateau collapsed fracture fragments
  • A minimally invasive reduction device for tibial plateau collapsed fracture fragments

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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 resetter for tibial plateau collapsed fracture fragments. The key point of the technical scheme is to include a mandrel body, the mandrel body is provided with a sliding hole, and a driving rod is slidably connected to the driving rod in the sliding hole. The circumferential outer wall is fitted with the circumferential inner wall of the sliding hole, a top plate is hinged on the outer wall of the end of the driving rod, one end of the top plate in the length direction is hinged to the end edge of the driving rod, and the other end of the top plate is connected to the length of the support plate. One end in the direction of the support plate is hinged, and the other end in the length direction of the support plate is hinged with the end of the top rod body for extending into the medullary cavity. There are multiple top plates, and the number of the top plates is consistent with the number of the outer sides of the driving rod. Surrounding the peripheral outer wall of the drive rod, the end of the push rod body away from the end extending into the medullary cavity is provided with a drive nut screwed with the drive rod, the drive nut is axially restricted and connected to the push rod body in a circumferentially rotatable manner superior. The reducer can overcome the shortcoming of insufficient jacking up of collapsed fracture fragments.

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 Patents(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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