Sectional type arc-shaped distraction osteogenesis device

A distraction osteogenic device and segmented technology, applied in the field of medical devices, can solve the problems of complex bone anatomy and inability to complete repair and reconstruction, and achieve the effect of less complications and easy operation.

Active Publication Date: 2015-05-27
THE 306TH HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bone anatomy of the cranio-maxillofacial region is complex, and many non-linear bone defects in the cranio-maxillofacial region encountered clinically, such as arc-shaped defects in the mandibular chin and mandibular angle, are treated with linear distraction osteogenesis. Can't do a good repair rebuild

Method used

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  • Sectional type arc-shaped distraction osteogenesis device
  • Sectional type arc-shaped distraction osteogenesis device
  • Sectional type arc-shaped distraction osteogenesis device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 and figure 2 As shown, the present invention is specifically described. A segmented arc-shaped distraction osteogenesis device, the arc-shaped distraction osteogenesis device includes an arc-shaped guide rail 3 whose end is a working end 22, and the working end 22 is connected to a driving device 18 provided with a control device 17 , the driving device 18 is connected with the pressurization channel 23 and the pressure relief channel 24 provided in the arc-shaped guide rail 3, and the arc-shaped guide rail 3 is provided with a first fixing plate 6 and a second fixing plate for fixed connection with the bone stump A fixed plate 7, a bone transfer plate 4 is provided between the first fixed plate 6 and the second fixed plate 7, a first slider 20 is provided on the bone transfer plate 4, and the first slider 20 is connected to the fixed plate 7. The pressurizing channel 23 is connected to the pressure releasing channel 24, and the first fixing plate 6 and...

Embodiment 2

[0043] The difference between this embodiment and Embodiment 1 is that several third fixing plates 10 are arranged between the bone transfer tray 4 and the first fixing plate 6, and the third fixing plates 10 include two structures:

[0044] The first structure, such as Image 6 and 7 As shown, the third fixing plate 10 is an overall rectangle, and the two ends of the third fixing plate 10 are provided with a plurality of through holes for fixing with the bone, and the third fixing plate 10 is provided with a second slider 21 with a semicircular section , when carrying out bone distraction, according to the requirement of distraction distance length, the quantity needed third fixing plate 10 is calculated in advance, and it is standby on the suit arc guide rail 3. The second slide block 21 top of semicircle is provided with through hole, is provided with screw 26 in the through hole, can enter and be provided with in the positioning groove 25 on the curved guide rail 3 when s...

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Abstract

The invention relates to the technical field of medical equipment, in particular to a sectional type arc-shaped distraction osteogenesis device. The sectional type arc-shaped distraction osteogenesis device provided by the invention comprises an arc-shaped guide rail of which one end is a working end; the working end is connected with a driving device provided with a control device; the driving device is connected with a pressurization passage and a pressure relief passage which are arranged in the arc-shaped guide rail; the arc-shaped guide rail is provided with a first fixed plate and a second fixed plate which are respectively and fixedly connected with bone stumps; a bone transport disc is arranged between the first fixed plate and the second fixed plate; the bone transport disc is provided with a first sliding block; the first sliding block is connected with the pressurization passage and the pressure relief passage; the first fixed plate and the second fixed plate are respectively provided with through holes and a second sliding block which are fixedly connected with bones. The sectional type arc-shaped distraction osteogenesis device disclosed by the invention is used for correcting arced jaw deformity and repairing arced bone defects in the arced distraction osteogenesis surgery of the jaw, and repair medical equipment which does not need to perform bone transplantation, is simple in operation and is few in complication is provided for repairing the arched bone defects of craniofacial regions and maxillofacial regions.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a segmented arc-shaped distraction osteogenesis device. Background technique [0002] Distraction osteogenesis has been used in craniofacial surgery for more than 20 years, and it has become an important method for the repair and reconstruction of skull and jaw defects. Distraction osteogenesis (or called distraction osteogenesis, Distraction Osteogenesis, DO) refers to interrupting the continuity of the bone through surgical means (artificially causing a fracture), and then applying appropriate tension on both sides of the fractured end. When the ends move in opposite directions, bone regeneration, calcification, and remodeling gradually occur between them, so as to achieve the purpose of bone lengthening, increasing bone mass, and repairing bone defects. Distraction osteogenesis was first reported by the Italian scholar Codivilla in 1905, and then the Soviet orthopedic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/66
CPCA61B17/60A61B2017/564
Inventor 吴玮周丽斌
Owner THE 306TH HOSPITAL OF PLA
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