Pelvic minimally invasive reduction fixing system

Abstract

The invention relates to a pelvic minimally invasive reduction fixing system. The system at least comprises a combination cannula, a straight-head probe and an elbowed-head hand awl; the combination cannula is composed of an outer cannula and a plurality of inner cannulae inserted in the outer cannula, the diameters of the inner cannulae are all different, the inner cannulae can be connected in a sleeved mode according to the diameter order from largest to smallest in sequence, and a hand-held part is arranged on the tube wall of the outer side of the outer end of the outer cannula; the end portion of the inserting end of the straight-head probe is provided with a spherical propulsion end, the inner diameter of one inner cannula is 0.1-0.5 mm larger than the maximum radial length of the inserting end of the straight-head probe, and the inner diameter of one inner cannula is 0.1-0.8 mm larger than the maximum radial length of the inserting end of the elbowed-head hand awl. The pelvic minimally invasive reduction fixing system has the advantages of being easy to operate, convenient in fine tuning, strong in perception and good in soft tissue protection effect.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a pelvic minimally invasive reduction and fixation system applied to pelvic acetabulum and fractures and a method for using the system. Background technique [0002] After a fracture occurs in the pelvis, surgical reduction and internal fixation are generally required. At present, minimally invasive techniques implement closed reduction and percutaneous hollow screw internal fixation. The specific method is to first insert the hollow nail guide wire, and then screw the screw along the guide wire; The pelvis has a very complex three-dimensional anatomical structure, the surrounding soft tissue is rich, the percutaneous nail insertion depth is large, and the needle insertion operation is difficult. Therefore, whether the guide wire can smoothly penetrate into the ideal position of the bone is the key to the success of the operation. [0003] At present, minimally invasive pelvic redu...

AI Technical Summary

Problems solved by technology

However, the above-mentioned problems still exist in this technology. For example, the main bodies of straight probes and curved probes are slender and solid cylinders with a diameter of 2 mm or 2.5 mm. Inaccurate

In addition, there is no corresponding sleeve that adapts to the entire procedure to protect the body tissues during the entire operation

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