Adjustable bone orthopedic external fixer
An external fixator, an adjustable technology, applied in medical science, surgery, etc., can solve the problems of inability to adjust the length, bulky instruments, and inapplicability.
Inactive Publication Date: 2013-01-30
江苏美德康信息科技有限公司
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Problems solved by technology
[0002] Many hospitals in China use the Brownian frame when treating gum fractures. This device has the following disadvantages: the traction frame does not match the traction bow, and the traction pulley must be placed on the fractured limb, which increases the height of the frame and affects the limbs. keep warm
The patent No. 91215259 provides a multi-functional unilateral external fixation bracket. The fixation bracket has no elastic elements, the instrument is bulky, and its length cannot be adjusted, so it cannot be used for people of different heights.
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[0010] refer to figure 1 , the adjustable bone orthopedic external fixator of the present invention includes an adjusting rod 1 , an elastic element 2 , a sliding sleeve 3 and a fixing sleeve 4 . The sliding sleeve 3 and the fixed sleeve 4 are provided with bone needle holes (the bone needle holes are not shown in the figure), the sliding sleeve 3 is sleeved on one end of the adjusting rod, and the sliding sleeve 3 can slide on the adjusting rod in the axial direction of the adjusting rod. The adjusting rod 1 is provided with a first limit block 5 and a second limit block 6 positioned at both ends of the sliding sleeve, wherein the first limit block 5 positioned at the upper end of the sliding sleeve is threadedly connected with the adjusting rod, and is fixed on the adjusting rod. motionless, and the second limit block 6 located at the lower end of the adjustment sliding sleeve 3 is also fixed on the adjustment rod 1 and is motionless. The elastic element 2 is a spring, and ...
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The invention discloses an adjustable bone orthopedic external fixer. One end of an elastic element is abutted against a position limiting block, the other end of the elastic element is abutted against a positioning block connected onto a regulating rod, a fixing sleeve is fixedly connected with the other end of the regulating rod, the regulating rod comprises a first connecting rod, a second connecting rod and a sleeve, the sleeve is sheathed on the first connecting rod, a radial first chute and a second chute positioned above the first chute are arranged on the peripheral surface of the first connecting rod, the first chute and the second chute are in symmetrical arrangement, an axial third chute is also arranged on the first connecting rod, both ends of the third chute are respectively communicated with the first chute and the second chute, the second connecting rod is provided with an axial through hole, the first connecting rod is inserted into the axial through hole of the second connecting rod, the end part of the second connecting rod is provided with a positioning lug boss, the positioning lug boss is embedded in the first chute. The adjustable bone orthopedic external fixer has the advantage that the length of the external fixer can be regulated.
Description
technical field [0001] The invention relates to the technical field of medical equipment, in particular to an adjustable bone orthopedic external fixator. Background technique [0002] Many hospitals in China use the Brownian frame when treating gum fractures. This device has the following disadvantages: the traction frame does not match the traction bow, and the traction pulley must be placed on the fractured limb, which increases the height of the frame and affects the limbs. keep warm. Since compressive stress is safest for bone cells and bone framework, indirect compressive stress is also the most reasonable. Using an axially relatively stable structure to overcome the transitional tensile damage caused by shear, torsion, and bending stresses, and using elasticity to meet the intermittent compressive stress requirements of bone tissue cells is the basis of the principle of axially stable elastic fixation. It is unrealistic to try to find a material with the same elasti...
Claims
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IPC IPC(8): A61B17/60
Inventor 王一鳞
Owner 江苏美德康信息科技有限公司