Brain three-dimensional direction finder

Abstract

The invention relates to a brain three-dimensional direction finder which comprises a probe component, an arc-shaped arch frame and an adjusting ring component. The adjusting ring component has an outer profile and an inner profile which are round, arc-shaped lateral sliding grooves are symmetrically formed in the side wall of the outer profile, locking sliding grooves are formed in the upper andlower surfaces of the outer profile and correspond to the lateral sliding grooves in position, and a locking knob is assembled in each locking sliding groove; the arc-shaped arch frame component is arranged in the lateral sliding grooves through connection members arranged at two ends and can synchronously slide and rotate around diameter of an outer profile circle where the connection members arepositioned, the connection members are locked in the locking sliding grooves through the locking knobs, and cranium plate clamping components are uniformly arranged between the two lateral sliding grooves symmetrically; the probe component is mounted on the arc-shaped arch frame component and can slide along the same and rotate around the same. Structure of the whole brain three-dimensional direction finder is optimized, operation convenience and patients' comfort are further improved, more operation options are provided for clinicians, and the direction finder is expected to improve target positioning accuracy.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a brain stereotaxic instrument. Background technique [0002] With the continuous development of neurosurgery, radiosurgery, and functional neurosurgery, minimally invasive brain therapy and precision therapy have emerged. Stereotaxy provides an effective means of meeting these needs. At present, the Leksell brain stereotaxic instrument (G type) of Elekta Company is widely used at home and abroad. It mainly consists of a target positioning frame [octagonal rectangular base ring + fiducial system], cranial plate fixation components (including four metal columns), three sets of target "adjustment scales" (front and back, left and right and three spatial directions up and down), a semicircular arch (radius 190 mm) and a probe system. Wherein the "left and right" adjustment scale is connected with the "up and down" adjustment scale by means of an axis ring, and the former is enga...

AI Technical Summary

Problems solved by technology

Since the Leksell stereotaxic instrument needs a positioning frame and has a large semicircular bow frame, the volume and weight of the whole set of instruments are relatively large

On the other hand, regardless of framed Leksell or frameless Nexframe, target positioning space adjustment currently mainly relies on mechanical scale adjustment ("adjustment scale", angle scale ring, etc.), which will inevitably cause artificial cumulative errors and affect target positioning accuracy.

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