All-purpose device for removing transpedicular polyaxial screws during revision interventions on spine

Abstract

FIELD: medical equipment.SUBSTANCE: all-purpose device for removing transpedicular polyaxial screws during revision interventions on the spine. An all-purpose device for removing transpedicular polyaxial screws during revision spine procedures includes a hollow body with an annular collar at its distal end, a thread and an O-shaped handle at the proximal end, a T-shaped clamping element provided with a thread at the end opposite the transverse shelf and installed inside the body in such a way that the thread protrudes within the contour of the O-shaped handle, and a retainer movably mounted outside the body and provided with jaws at the distal end. The first nut is installed on the thread of the clamping T-shaped element, and the second nut is installed on the thread of the housing.EFFECT: reliable coupling of the device with a transpedicular polyaxial screw, regardless of the profile of its head and the type of head thread, which allows for rapid removal of the screw from the vertebra, reducing the duration of the revision surgery and its trauma.1 cl, 9 dwg

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