External fixing device for pelvis

Abstract

The invention provides an external fixing device for the pelvis. The external fixing device comprises at least two closed ring assemblies, a plurality of connecting assemblies and a plurality of fixing assemblies. The closed ring assemblies are aligned and separated in the first direction perpendicular to the pelvis, each closed ring assembly comprises at least two rigid bent rod parts, the bent rod parts are movably connected to be closed to surround and extrude the pelvis, and the closed shape is constructed to expand and contract perpendicular to the first direction to adjust restraint on the pelvis; each connecting assembly is connected between two corresponding adjacent closed ring assemblies; the fixing assemblies are pivotally connected to at least one part of the connecting assemblies and abut against and are fixed to the body surface outside the pelvis or are screwed and fixed into the pelvis with an adjustable angle relative to the first direction. Thus, pressure applied to the pelvis can be adjusted at 360 degrees, the volume of the pelvis is constrained, and the negative suction effect is avoided. An ejector rod or a plant implanting needle is screwed into the bone surface, so that the pelvis is firmly fixed.

Description

technical field [0001] Embodiments of the present disclosure relate to an external fixation device for the pelvis, and in particular to an external fixation device for early reduction and late fixation of the pelvis. Background technique [0002] The incidence of pelvic and acetabular fractures is increasing year by year. Such patients are often combined with multiple organ injuries such as craniocerebral trauma and combined thoracoabdominal injuries. The mortality and disability rates are very high. The diagnosis and treatment of such patients is first of all to save lives, a race against time. It is imperative to deal with shock, avoid increasing bleeding, quickly and powerfully stabilize pelvic fractures, reduce pelvic volume, and avoid the "negative suction effect" of the pelvis. At present, the early temporary pelvic stabilization measures in clinical application are as follows: Pelvic binding belt: fast, non-invasive, and simple to operate, but the effect is average, ...

AI Technical Summary

Problems solved by technology

At present, the early temporary pelvic stabilization measures in clinical application are as follows: Pelvic binding belt: fast, non-invasive, and simple to operate, but the effect is average, the fixation strength is limited, and it is impossible to prevent the pelvic volume from squeezing-expanding again in the space after binding The resulting "negative suction effect"; military anti-shock pants: have a certain splint effect on lower limbs and pelvic fractures, and can also increase negative pressure to control venous bleeding

But at the same time, it will increase the thoracic pressure, which is easy to be complicated by ventilation disorders, and at the same time affects the further diagnosis and treatment of the lower limbs and abdomen; "C" shaped forceps are mainly used to stabilize the posterior pelvic ring, and the effect is limited

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