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Fracture reduction device

A technology of a reducer and a fracture end, which is applied in the field of medical devices and can solve problems such as minimally invasive reduction of the fracture segment

Active Publication Date: 2019-12-20
淮安市第二人民医院(淮安仁慈医院)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a fracture reducer. Compared with the prior art, the movement and rotation of the joints on the outside drive the movement and rotation of the bones inside to reset , to solve the problem of minimally invasive reduction of the fracture segment

Method used

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Embodiment Construction

[0017] According to the fracture reducer of the present invention, the problem of minimally invasive reduction of the fractured segment is solved. Under normal circumstances, the bones face two different directions from the fracture site after a fracture. At this time, reduction and fixation are required according to the original direction of the bones. The spatial displacement between the two fracture segments can be divided into six degrees of freedom displacement or rotation, including displacement or rotation on the X axis, displacement or rotation on the Y axis, and displacement on the Z axis. Bit or turn.

[0018] Such as Figure 1-5 As shown, it mainly includes an inner fixed part and an outer fixed part, which are respectively used for the two ends after bone fracture, and the inner fixed part and the outer fixed part can be fixed at a certain angle.

[0019] Specifically, the inner fixing part has an inner nail clip 1, the outer fixing part has an outer nail clip 12, the ...

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Abstract

The invention provides a fracture reduction device. The fracture reduction device comprises an inner fixing part and an outer fixing part which are used at two ends respectively after bone fracture and can be fixed at a certain angle; the fracture reduction device is adjusted to ensure X, Y and Z coordinate origins of virtual coordinates of the reduction device are located in the center of fracture sections, the reduction device decomposes shift of the fraction sections into six-degree-of-freedom movement, then, six degrees of freedom are externalized to movement and rotation of each joint byfixing screws at two ends, and movement and rotation of each joint outside drive inside bones to move and rotate for reduction. According to the fracture reduction device, the movement and rotation ofeach joint outside drive inside bones to move and rotate for reduction, so that the problem of minimally invasive reduction of fracture sections is solved.

Description

Technical field [0001] The invention relates to the field of medical devices, and particularly to a fracture reducer. Background technique [0002] The existing fracture reducer, as described in Patent Document 1 (CN101278858A), includes a telescopic guide rod and a semi-circular needle seat track. The telescopic guide rod is formed by connecting multiple sub-guide rods through a connecting sleeve. The annular needle seat track is axially provided with an annular through groove along the annular circumferential end surface, the annular through groove is embedded with an arc-shaped rack, and the annular through groove is provided with a needle seat positioning meshing with the arc-shaped rack Gear, the needle seat positioning gear is connected with an arc-shaped needle seat buckled on the track of the semi-circular needle seat, the arc-shaped needle seat is radially fixedly connected with a cylindrical shell, and the cylindrical shell is sleeved A lifting rod is provided, the upp...

Claims

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Application Information

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IPC IPC(8): A61B17/66
CPCA61B17/66
Inventor 周全
Owner 淮安市第二人民医院(淮安仁慈医院)
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