Inhaul cable pressurizing cylinder sleeve and pressurization fixing device for patellar fracture

Abstract

The invention provides an inhaul cable pressurizing cylinder sleeve for patellar fracture. The cylinder sleeve is characterized by comprising a straight cylinder which is provided with an axial central through hole; one end of the straight cylinder is fixedly provided with an expanded cylinder cap, and an outer head is sleeved at the other end of the straight cylinder; the outer head is sleeved outside the straight cylinder in a pluggable sliding way; and the outer end of the outer head is fixedly provided with an expanded cap correspondingly. The invention also provides a cylinder inhaul cable pressurizing fixing device for patellar fracture, and the device comprises two cylinder sleeves which are approximately parallel and alternately pass through two sides of the central vertical line of the fixed patella, and a twist tensioning pressurization inhaul cable which is matched with the cylinder sleeves so as to fix the patella. The straight cylinder and the outer cap move oppositely by twist tensioning of the pressurization inhaul cable, so that pressurization tensioning acts on the patellar fracture surface, two fracture ends are prevented from separating and lateral displacing, the deformity of the patella is avoided, and the stability of fracture is maintained. The inhaul cable pressurizing cylinder sleeve has the advantages of simple and practical structure, convenience in operation and good operation stability, and is advantageous to fracture healing.

Description

technical field [0001] The invention relates to the field of internal implantation instruments for internal fixation of traumatic orthopedic fractures, in particular to a cable pressurized empty sleeve for patella fractures and a patella fracture pressurized fixation device using the cable pressurized empty sleeve. Background technique [0002] Patella fracture is one of the common types of fractures after human trauma, and is a common disease in trauma orthopedics. Patella fracture displacement generally requires open reduction, anatomical reduction as far as possible, effective internal fixation, and early functional exercise in order to restore its joint function to the greatest extent. If the above treatment requirements cannot be met, complications such as traumatic knee arthritis, patellofemoral arthritis, and knee joint stiffness will easily occur, which will seriously affect the patient's working ability and leave labor disabilities to varying degrees. [0003] ...

AI Technical Summary

Problems solved by technology

At present, the internal fixation equipment for patellar fractures used in various hospitals includes steel wire binding, Kirschner wire drilling and fixing, Kirschner wire plus tension band steel wire fixation, screw fixation, screw plus tension band steel wire fixation, etc. The disadvantage is that the steel needle is easy to move, The needle body may be deformed after being stressed, and the stability is not good, which will affect the treatment effect

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