Rib internal fixator and fixing method

Abstract

The invention discloses a rib internal fixator and a fixing method. The rib internal fixator comprises a first support, a second support, a third support and a tail end barb. One ends of the first support, the second support and the third support converge to form a shuttle shape, the end of the shuttle shape bends back upwards to form the tail end barb, the other ends of the first support, the second support and the third support are combined to form a head, and the head is in an oval cone shape. When the internal fixator is used, the chest does not need to be opened for the purpose of rib internal fixation; broken end displacement of the ribs is reduced, and periosteum and intercostal muscles are not damaged; intercostal nerves and blood vessels are not damaged and extruded; thoracic wallmuscles do not need to be broken, and respiratory muscle function damage is avoided; postoperative pain can be obviously relieved by dispersing multiple small incisions. The titanium memory alloy iswidely applied clinically at present, and the price and the safety are generally acceptable; due to the fact that the titanium memory alloy outwards-protruding design is adopted for the body, transverse and longitudinal shearing force is formed after the body restores to the original form, and fixation is firm.

Description

technical field [0001] The invention belongs to the technical field of bone fixation, in particular to a rib internal fixator and a fixing method. Background technique [0002] In patients with chest trauma, rib fractures are very common, accounting for about 55%, especially multiple rib fractures of the 4th to 7th ribs are common. Among them, flail chest affects the pathophysiological changes of the respiratory cycle and causes serious dysfunction. If it is not treated in time and effectively, the disability rate and fatality rate are as high as 42%. Therefore, active treatment of rib fractures is of great significance for chest wall fixation and restoration of thoracic stability. Conservative treatment of rib fractures in the past has poor results, many complications, and a painful process. With the development of medical technology and new materials, surgical internal fixation has gradually become the development trend of rib fracture treatment, and it gradually tends t...

AI Technical Summary

Problems solved by technology

The disadvantage is that it is expensive, and the fixation of the fracture is not as reliable as the plate, and the broken ends of the ribs need to be completely dislocated and separated before being inserted into the rib medullary cavity. Larger size is not conducive to fracture healing, and two conventional binding wires are used for auxiliary fixation after placement

The above four fixation methods and materials have their own advantages and disadvantages, and the common disadvantages are: a thoracotomy is basically required, the surgical wound is large, and a large number of chest wall muscles are damaged and severed, including their attachment points at the ribs, which brings trauma to the patient. Re-injury is not conducive to later recovery

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