Pelvic internal fixation unit and application thereof

Abstract

The invention relates to a pelvic internal fixation unit, which is composed of at least two pelvic internal fixation screws, a supporting rod and at least two fastening nuts, wherein the pelvic internal fixation screw is composed of a fully-threaded screw rod and a U-shaped tube sleeve. The invention further provides the application of the pelvic internal fixation unit. The pelvic internal fixation unit has the advantages that: the operation flows of traditional internal fixation of pelvic fracture and corrective osteotomy are changed so that the two surgical operations are simper in operations; a screw-rod fixation system is used, and the supporting rod can be bent randomly, thereby widening the applicable scope; the supporting rod comes into no direct contact with pelvis, which applies no influence on blood supply at the facture site and at pelvis below the internal fixation unit, therefore, bone union is quickened; the system adopts angle fixation and has good fixation effect, thereby avoiding the possibility of pulling out or loosening the screws; and minimally invasive operation can be realized through subcutaneous tunnel, thereby not only leading to small trauma, less bleeding and fast recovery, but also reducing complications remarkably.

Description

technical field [0001] The invention relates to a medical device, in particular to a pelvic internal fixator and its application. Background technique [0002] A pelvic fracture is a serious trauma, often caused by direct, violent pelvic compression. More common in traffic accidents and landslides. In wartime, it is a firearm wound. More than half of pelvic fractures are accompanied by complications or multiple injuries. The most serious ones are traumatic hemorrhagic shock and combined injuries of pelvic organs. Improper treatment has a high mortality rate. Pelvic fractures account for nearly 3% of all skeletal injuries. The main causes of pelvic fracture injuries in adults include: motor vehicle collisions, falls from heights, and crush injuries. The incidence of pelvic fractures in adolescent patients is relatively low, about 0.5%-7%, and the most common causes are motor vehicle accidents, pedestrians being hit by vehicles, and injuries from falling from heights. Wi...

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Problems solved by technology

However, there is no report about the pelvic internal fixator that adopts the fixation screw with U-shaped sleeve, the fixation rod and the fastening structure to form

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