Intra-articular fracture minimally-invasive surgery sighting device with reset function

A technique for intra-articular fractures and minimally invasive surgery, applied in the field of medical devices, can solve problems such as complex structure and inconvenient operation, and achieve the effect of reducing pressure and preventing secondary injuries

Active Publication Date: 2020-09-18
杭州市萧山区第一人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This utility model has the advantage of having a smaller wound during the fracture fixation process, but its struc

Method used

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  • Intra-articular fracture minimally-invasive surgery sighting device with reset function
  • Intra-articular fracture minimally-invasive surgery sighting device with reset function
  • Intra-articular fracture minimally-invasive surgery sighting device with reset function

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like figure 2 As shown, a minimally invasive surgery aimer for intra-articular fractures with reset function includes a sleeve 1, and the inside of the sleeve 1 has a through hole 4 that can pass through the Kirschner wire, so that when in use, the Kirschner wire only Part of the length of the needle is exposed outside the cannula 1, thereby solving the problem that the Kirschner wire is easily bent during the nailing process, and also includes a parallel aiming block 2, and the parallel aiming block 2 has at least two through parallel aiming blocks 2 The first aiming holes 3 on the upper and lower surfaces, the axes of each first aiming hole 3 are parallel to each other, the casing 1 passes through the first aiming holes 3 and the outer surface is connected with the parallel aiming block 2, the through holes 4 The axis line ...

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Abstract

The invention belongs to the technical field of medical apparatus and instruments, and particularly relates to an intra-articular fracture minimally-invasive surgery sighting device with a reset function. The intra-articular fracture minimally-invasive surgery sighting device comprises sleeves; a through hole capable of penetrating a kirschner pin is formed inside each sleeve; the intra-articularfracture minimally-invasive surgery sighting device further comprises a parallel sighting block; the parallel sighting block is provided with at least two first sighting holes penetrating the upper and lower surfaces of the parallel sighting block; an axis lead of each first sighting hole is in parallel to each other; the sleeves penetrate the first sighting holes and the outer surfaces of the sleeves are connected with the parallel sighting block; axis leads of the through holes are coincided with the axis leads of the first sighting hole; and the sleeves and the first sighting holes are arranged correspondingly. The sleeves of the intra-articular fracture minimally-invasive surgery sighting device can utilize the parallel sighting block to carry out sighting positioning so as to ensure that the kirschner pins knocked in through the sleeves are in parallel to each other, and thus, a large resultant force can be formed and a fracture point is more firmly and reliably fixed.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a minimally invasive surgery aimer for intra-articular fractures with a reset function. Background technique [0002] Intra-articular fractures are fractures within the joint capsule. For example, Hoffa fractures of the femoral condyle, talus fractures, and greater tuberosity fractures of the humerus can be treated minimally invasively under arthroscopy. The articular cartilage is easily damaged during reduction. Thin, the Kirschner wire has poor holding power and is easy to pull out during reduction. The Kirschner wire used as a guide wire during reduction is relatively thin and easy to bend. As a result, the Kirschner wire cannot be used immediately after the fracture is reset, and the displaced bone Fixed to the main bone block. In addition, it is best to fix this type of fracture with two to three hollow screws in parallel to achieve uniform compression. [0003] F...

Claims

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Application Information

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IPC IPC(8): A61B17/90
CPCA61B17/88A61B17/90
Inventor 马海涛
Owner 杭州市萧山区第一人民医院
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