Sleeve external fixation needle for bone transverse moving operation

Abstract

The present invention relates to an orthopaedic external fixation needle and particularly to a sleeve external fixation needle for a bone transverse bone moving operation, belongs to orthopaedic external fixation devices, and solves problems that existing operation devices (needing uses of 4-6 external fixation needles and a pair of an external fixation frame) are large in size, large in trauma, low in patient compliance, difficult in later nursing and the like. The sleeve external fixation needle for bone transverse moving operation is characterized in that a main body part of the sleeve external fixation needle is characterized by comprising an inside inner core and an outside sleeve, the inner core inserts into the sleeve to form a sleeve structure, an outer wall of a head end of the sleeve and a head end of the inner core are provided with threads, the sleeve external fixation needle is used for fixing bones, a tail end of the main body part of the sleeve external fixation needle is provided with an adjusting device, the adjusting device is composed of a transmission frame, threads on the outer wall of the sleeve and corresponding nuts, one end of the transmission frame is semi-fixed between the two nuts on the outer wall of the sleeve, the other end of the transmission frame is semi-fixed at a tail end of the inner core, the inner core and the sleeve are driven to move relatively by rotating the nuts on the outer wall of the sleeve, so that a relative position between bone blocks is adjusted. The sleeve external fixation needle is used for fracture fixation, a transverse bone movement can be achieved through 1-2 sleeve external fixation needles, surgical operations are simplified, surgical wounds are reduced, a fear of a patient is relieved, compliance is improved,and postoperative care is simplified.

Description

technical field [0001] The invention belongs to the technical field of medical instruments and equipment, and in particular relates to an external cannula fixation needle used for bone lateral movement operation. Background technique [0002] The tibial lateral bone transfer technique (which can treat thromboangiitis obliterans and diabetic foot) is a surgical treatment based on the technical theory of "tension-stress law" created by the former Soviet scientist "Ga. A. Irizalov". When the biological tissue is slowly pulled, it will generate a certain tension, which can stimulate tissue regeneration and active growth. During the process of cortical bone osteotomy and gradual traction and extension, bone and limb blood vessels are significantly regenerated. Therefore, it is used in the treatment of thromboangiitis obliterans, diabetic foot and refractory wounds of limbs. For example: Transverse tibial bone transfer surgery is generally used to treat chronic lower limb ischemi...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of large volume, complex structure, large damage (need to drill 4-6 holes in the bone), difficult care, and hindrance to limb activities in the existing external fixator in transverse bone transfer surgery

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