Fast drawing extension rod
An extension rod and fast technology, applied in the field of connecting rods, can solve the problems of high manufacturing cost, high use price, axial and comprehensive stress stimulation of bone external fixator, etc., so as to ensure the quality of surgical treatment, low cost, and reduce workload. Effect
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Embodiment 1
[0063] Embodiment one sees Figure 1-7 As shown, this fast stretching extension rod is connected between two hole rings in the external bone fixator, and is characterized in that it includes a threaded rod 1, an inner rod sleeve 2 and an outer rod sleeve 3, and the thread The rod 1 is inserted into the inner rod sleeve 2 from top to bottom, and the inner rod sleeve 2 is inserted into the outer rod sleeve 3 from top to bottom, and the lower end of the outer rod sleeve 3 is provided with a threaded connection with the hole ring. piece 12.
[0064] In this embodiment, the lower end of the outer rod sleeve 3 is provided with a multi-directional hinged joint, and the threaded connector 12 is provided on the multi-directional hinged joint. The multi-directional hinged joint is composed of a connecting seat 18, a hinged lug 17, a middle pin 16, a shaft sleeve 15 and a pin shaft 14, wherein the hinged lug 17 is arranged at the lower end of the outer rod sleeve 3, and the shaft sleeve...
Embodiment 2
[0069] Embodiment two see Figure 8-10 , the difference from Embodiment 1 is that the lower end of the outer rod sleeve 3 does not have a multi-directional hinge joint, and the threaded connector 12 is an internally threaded hole directly arranged at the lower end of the outer rod sleeve (this embodiment is directly on the outer rod sleeve 3 A nut is welded to the lower end). Certainly, in other embodiments, the threaded connecting member 12 may also be an externally threaded rod or the like.
[0070] The link aspect of the present invention and various articulators is the same as the traditional one, and there are many types of cooperation. Its application is reflected in multidimensional orthopedics. see Figure 14-18 , said embodiment one can be applied in Taylor space frame, also can be applied in ankle joint coronal plane osteotomy orthosis, ankle joint coronal plane draft deformity orthosis, ankle joint coronal plane compound deformity orthosis, equinus orthosis In o...
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