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Bone transport apparatus for treatment of large segmental defect of humerus

A handling device and humerus technology, applied in internal bone synthesis, medical science, external fixator, etc., can solve problems such as poor mechanical stability of single-rod external fixator, inability to bear early weight on the affected limb, and inability to adjust the line of force, etc., to avoid Poor line of force, convenient clinical care, and good patient compliance

Inactive Publication Date: 2016-04-13
AFFILIATED YONGCHUAN HOSPITAL OF CHONGQING MEDICAL UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the mechanical stability of the single-rod external fixator is poor, the line of force cannot be adjusted, and the affected limb cannot bear weight in the early stage. In the later stage, complications such as poor line of force, disuse osteoporosis, refracture, delayed bone union or even nonunion may occur.

Method used

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  • Bone transport apparatus for treatment of large segmental defect of humerus
  • Bone transport apparatus for treatment of large segmental defect of humerus
  • Bone transport apparatus for treatment of large segmental defect of humerus

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] Such as Figure 1 to Figure 9 As shown in the figure, it is suitable for the large-segment humerus bone defect handling operation. According to the different bone conditions of patients, the main intramedullary nail can be set into three types.

[0030] The first is for patients with osteoporosis, such as Figure 1 to Figure 4 As shown, the present invention includes an intramedullary main nail 1 for axially driving into the bone, the intramedullary main nail 1 has a width that matches th...

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Abstract

The invention discloses a bone transport apparatus for treatment of large segmental defect of humerus. The bone transport apparatus comprises a main intramedullary nail axially driven into bones, and further comprises a fixation support, a plurality of set screws and a plurality of transport needles. The main intramedullary nail is of the scope matched with the human humerus anatomical structure, and both ends of the main intramedullary nail are provided with lock holes matched with general set screws and provided with set screw holes. The near end of the main intramedullary nail is provided with a blade feed hole and a screw blade matched with the blade feed hole. Rear ends of the set screws are connected with the fixation support while front ends thereof are matched and connected with the set screws on the main intramedullary nail. The transport nails, with one ends being implanted into bones needing transport and the other ends being connected with the fixation support, are capable of moving along the axial direction of the main intramedullary nail.

Description

technical field [0001] The invention relates to a device for treating humeral large section bone defect by bone transport. Background technique [0002] Large-segment long bone defect refers to a bone defect in which the fracture cannot heal itself or can only regenerate 10%, generally 2-3 times the diameter of the involved long bone. Large-segment bone defects are usually caused by high-energy trauma, infection, tumors, etc., often accompanied by limb shortening, deformity, osteomyelitis, muscle atrophy, and stiffness of adjacent joints. Its repair treatment has always been one of the biggest problems in the field of orthopedics. According to statistics, in Germany, bone graft surgery is one of the top 50 treatments that patients receive most frequently; in the United States, about 800,000 patients need bone graft surgery every year; 3 million cases; large bone defects have brought huge physical and mental injuries and economic burdens to patients, so how to solve this pro...

Claims

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Application Information

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IPC IPC(8): A61B17/56A61B17/72A61B17/66
CPCA61B17/66A61B17/7233A61B17/7241A61B2017/564
Inventor 马坤龙栾和旭栾富钧
Owner AFFILIATED YONGCHUAN HOSPITAL OF CHONGQING MEDICAL UNIV
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