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Pre-fixing device for bone injury

A pre-fixation and orthopedic technology, applied in the direction of fixator, internal fixator, internal bone synthesis, etc., can solve the problem of unpredictability of relative posture, increasing the difficulty of connecting the retaining plate with two screws, and the inability to pass the retaining plate smoothly And other issues

Inactive Publication Date: 2019-11-15
李振
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AI Technical Summary

Problems solved by technology

[0005] After the two screws penetrate into the two bone bodies, the relative posture between the two screws cannot be predicted, which makes the distal ends of the two screws may not be able to pass through the pre-set through holes on the retaining plate smoothly, thereby increasing the number of retaining plates. Difficulty of connecting process with two screws

Method used

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  • Pre-fixing device for bone injury
  • Pre-fixing device for bone injury

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Embodiment Construction

[0045] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change acc...

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Abstract

The invention discloses a pre-fixing device for the bone injury. The device comprises a keeping plate, a first screw, a first guide mechanism, a second screw and a second guide mechanism. The near endof the first screw extends into a first bone body, and the far end of the first screw is arranged on the keeping plate; the first guide mechanism can make the far end of the first screw slide in thewidth and length directions of the keeping plate; the near end of the second screw extends into a second bone body, and the far end of the second screw is arranged on the keeping plate; the second guide mechanism can make the far end of the second screw slide in the width and length directions of the keeping plate. According to the pre-fixing device for the bone injury, by additionally arranging the first guide mechanism and the second guide mechanism, when the keeping plate is connected with the far ends of the two screws, the keeping plate can be suitable for the opposite postures of the twoscrews, and the two screws are connected with the keeping plate without correction for the postures of the two screws.

Description

technical field [0001] The invention relates to a bone injury prefixation device. Background technique [0002] In the prior art, the following methods are used to fix the two fractured bone bodies: [0003] First, one screw rod is used to penetrate into one of the bone bodies, and the other screw rod is used to penetrate into the other bone body, and then the distal ends of the two screw rods are respectively connected by a retaining plate, specifically, the two screw rods are The two ends are pierced through the pre-opened through holes of the retaining plate, and the distal ends of the two screws are connected to the retaining plate with the help of nuts; finally, the third screw rod is used to penetrate the fractured area of ​​the two bone bodies to realize the alignment of the two bone bodies. fixed. [0004] There are following defects in the above-mentioned method in the prior art and the above-mentioned fixing device adopted: [0005] After the two screws penetrat...

Claims

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Application Information

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IPC IPC(8): A61B17/68A61B17/84A61B17/86
CPCA61B17/683A61B17/844A61B17/86
Inventor 李振
Owner 李振
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