Push rod for connecting and placing in-vitro positioning plate and subcutaneous bone fracture plate
A subcutaneous connection and positioning plate technology, applied in the direction of outer plate, fixer, internal bone synthesis, etc., can solve the problems of weak connection, prone to dislocation, displacement, and delay of operation time, so as to reduce operation time, facilitate operation, The effect of improving efficiency
Active Publication Date: 2016-05-04
张英泽
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Problems solved by technology
The bone plate with this structure has achieved good results in clinical application, but there are still deficiencies. The main problem is that the connection between the subcutaneous bone plate and the bone plate that plays the role of extracutaneous positioning only relies on Kirschner wires for positioning. If it is not firm, it is prone to misalignment and displacement, which will cause great difficulties in the operation of the subsequent fixation screws, or even make it impossible.
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[0019] In the present invention, the subcutaneous bone plate 10 is pushed into the osteosynthesis position along the length direction of the long bone through the push rod 1, and at the same time, the in vitro positioning plate 9 above the subcutaneous bone plate 10 is kept moving synchronously. Accurately position and fix the subcutaneous bone plate 10 .
[0020] As shown in the figure, the external positioning plate 9 and the subcutaneous osteosynthesis plate 10 used in the present invention are elongated plates, and there are external positioning plate grooves 11 and subcutaneous bone plate grooves 12 along the length direction of the plate surface at both ends of the plate surface , There are screw holes 14 on the plate surface between the in vitro positioning plate groove 11 and the subcutaneous bone plate groove 12, and the screw holes 14 are used for fixing screws to fix the long bones. The external positioning plate 9 and the subcutaneous bone plate 10 have the same sh...
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The invention provides a push rod for connecting and placing an in-vitro positioning plate and a subcutaneous bone fracture plate, belonging to the technical field of medical apparatus and instruments for the department of orthopaedics, and used for placing and positioning the bone fracture plate in the minimally invasive surgery. The technical scheme is as follows: the in-vitro positioning plate and the subcutaneous bone fracture plate are correspondingly connected through a connecting structure of a push rod body, and are accurately aligned by selecting different clamp pins and clamping grooves, and the inclination angle of a connector at the lower end of the push rod can be adjusted through a cardan shaft. The push rod is simple in structure and convenient to operate, and is efficient and practical, the in-vitro positioning plate and the subcutaneous bone fracture plate can be integrally placed at a preset position of the subcutaneous bone fracture plate by using the push rod, and kirschner wires and fixing screws are accurately implanted to the subcutaneous bone fracture plate for fixing through the in-vitro positioning plate. The technical scheme belongs to an innovation for the placing method of the in-vitro positioning plate and the subcutaneous bone fracture plate, the difficulties that the in-vitro positioning plate and the subcutaneous bone fracture plate are inaccurate in alignment and inconvenient to place are solved, the operation time is saved, and the efficiency of the minimally invasive surgery is improved.
Description
technical field [0001] The invention relates to a push rod device for positioning a bone plate in a minimally invasive operation, and belongs to the technical field of orthopedic medical instruments. Background technique [0002] In orthopedic surgery for fracture treatment, plate fixation is a common internal fixation method for fractures. Plate fixation includes reconstruction plates, anatomical plates, and hook plates, among which anatomical plates are the most common. The currently widely used bone plate is a steel plate or a titanium strip with an arc-shaped end, on which a plurality of fixation holes for implantation nails are arranged. In use, it was found that after the bone plate was placed into the subcutaneous wound of the patient, there was often a deviation in the positioning and fixing of the bone plate, which not only affected the effect of the operation, but also increased the pain of the patient. Aiming at the limitations of conventional bone plate and impl...
Claims
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Login to View More IPC IPC(8): A61B17/92A61B17/80
CPCA61B17/808A61B17/92A61B2017/564
Inventor 陈伟孙家元王娟姬晨妮于沂阳李石伦张英泽
Owner 张英泽