Pelvic fracture closed reduction combination tool

Abstract

The invention provides a pelvic fracture closed reduction combination tool, and belongs to the field of pelvic fracture percutaneous reduction tools. The tool is characterized by comprising an indirect reduction mechanism and a direct reduction mechanism. The indirect reduction mechanism comprises a connecting rod (1) and a plurality of groups of chuck assemblies (2) installed on the connecting rod (1). After fracture reduction, the connecting rod (1) is effectively fixed and connected integrally with the direct reduction mechanism through a connecting mechanism. The direct reduction mechanism comprise a cross rod (8) connected with the connecting mechanism, and a vertical tubes (9) installed on the cross rod (8) through a connecting chuck, and the direct reduction mechanism performs distraction reduction and compression fixation on deep fracture. The tool effectively solves problems of reduction maintenance in closed reduction and percutaneous fixation existed in pelvic fracture minimally invasive therapy aspect. The tool can realize accurate reduction state and maintain the reduction, and can carry out percutaneous puncture intramedullary screw fixation, and reduction effect and operation efficiency are improved.

Description

technical field [0001] The utility model relates to a combined closed reduction tool for pelvic fractures, which belongs to the field of percutaneous reduction tools for pelvic fractures. Background technique [0002] Surgical open reduction and internal fixation is currently the most commonly used method for the treatment of unstable pelvic fractures. Its shortcomings are mainly reflected in the large surgical trauma, heavy blood loss, and many complications. In many cases, open surgery cannot be performed in the early stage of injury, which increases the number of patients. Painful and postoperative reduction effects. External fixation of the pelvic frame is another main fixation method commonly used in clinical practice. It is mainly suitable for temporary fixation of severe pelvic fractures before open surgery and maintenance of relatively stable fractures. It is an indirect fixation away from the fracture site. The main disadvantages are: The fixation effect is poor, a...

AI Technical Summary

Problems solved by technology

[0004] However, good fracture alignment is the premise of percutaneous screw fixation. Although in terms of percutaneous screw technology, from simply using C-arm X-ray machine to place screws under fluoroscopy, to using CT navigation technology, it has achieved Percutaneous screw placement in different parts of the pelvis is safe, but the research on closed reduction technology is still immature. Appropriately change the body position, especially under fluoroscopy), and maintain the reset without loss during the body position change is a difficult problem. At present, there is no effective solution, which limits the application of minimally invasive treatment techniques for pelvic fractures

Someone abroad has designed an external fixation device connected to the operating bed to assist in the reduction of pelvic fractures, and has achieved certain results. The disadvantages are: the equipment is bulky, difficult to sterilize, affecting perspective, and the patient’s position is fixed. Its essence is still simple and indirect reset, so it is difficult to promote and limit its application

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