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External fixation device for reducing bone fractures

A technology of fixing equipment and fixing clips, which is applied in the fields of external fixers, fixers, medical science, etc., and can solve problems such as no publicly available or proposed identifiable devices

Inactive Publication Date: 2004-05-05
ORTHOFIX SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] However, none of the above documents of the prior art from US 6,030,386 to EP 0807419 disclose or suggest identifiable means on external fixation devices as defined above which would be useful in the work of an orthopedic surgeon using these devices help

Method used

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  • External fixation device for reducing bone fractures
  • External fixation device for reducing bone fractures
  • External fixation device for reducing bone fractures

Examples

Experimental program
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Embodiment Construction

[0035] Reference attached Figures 1 to 6 , according to the present invention, a unilateral shaft-type external fixation device for fracture restoration in orthopedics is shown at 1 .

[0036] The fixation device 1 has a load-bearing structure consisting of interconnecting elements whose structure comprises a rod-shaped central body 2 with a longitudinal axis x-x and opposite ends 3, 4 which are hingedly connected to the ends of bone screws. Each fixing clip 5,6.

[0037] The rod-shaped central body 2 and the fixing clips 5, 6 are preferably composed of a material transparent to X-ray radiation, such as a polyetherketone plastic matrix, commonly known as "Peek", suitably reinforced with a predetermined amount of carbonized fibers to obtain a suitable hardness.

[0038] The rod-shaped central body 2 is axially extendable and comprises a first part 8 and a second part 9, wherein said first part 8 and second part 9 are slidably connected to each other to allow the central body...

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PUM

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Abstract

The invention relates to a novel type of an external fixation device having a carrying structure of interconnected elements comprising an extendible central body, and clamps for bone screws respectively articulated on opposed ends of the central body, said central body comprising two parts telescoping slidable one on the other, each of said parts including a first portion of elongate shape formed integrally with a second end portion of substantially cylindrical shape, said first portions of the parts being slidably coupled to each other by means of a driving groove formed longitudinally in one the first portion and a corresponding slide formed longitudinally in the other first portion and means being provided in said parts for stopping their sliding movement characterized in that it further comprises at least one plate having predetermined contour shape and thickness, at least one recess formed on the surface of at least one of the interconnected elements and having its contour shape matching the contour shape of said at least one plate, and means for releasably securing said at least one plate in said at least one recess.

Description

technical field [0001] The present invention relates generally to external fixation devices for fracture reduction in orthopedic surgery. [0002] In particular, the present invention relates to external fixation devices having a load-bearing structure consisting of interconnected elements, in particular comprising an extendable central body and fixing clips for bone screws, wherein the fixing clips are located opposite each other and are passed through Ball joints are hinged to each end of the center body. Background technique [0003] In this particular technical field, external fixation devices have long been used to promote fracture healing by holding bone fragments firmly in place. [0004] Such external fixation devices include a generally cylindrical central body that is axially extendable and has bone screw retaining clips hinged to opposite ends of the central body by ball joints. The fixation clip is attached to a rod bone screw implanted into the cortex of the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/60A61B17/64A61B90/92A61B90/94
CPCA61B19/44A61B2019/444A61B2019/446A61B17/6458A61B90/90A61B90/92A61B90/94
Inventor 米凯莱·夸提路易吉·罗西
Owner ORTHOFIX SRL
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