FIELD: medicine.
SUBSTANCE: invention relates to neuroorthopedics and can be applied in surgical treatment of degenerative affections of lumnar region of spinal column for measurement of spine segment rigidity in case of decompression operations. Distractor-dinamometre contains distractor with branches and consists of levers. One lever is made whole, the other composite and consists of first, second and third levers. Whole lever has scale. On first lever arrow-indicator is placed. Second lever has scale and arrow. On third lever adjusting screw is located. On ends of branches supports for limitation of depth of work ends submergence are placed. Between whole lever and second lever flat spring is placed. Between first and second levers calibrated spring is placed.
EFFECT: invention ensures improvement of results of patients' treatment due to maximal preservation of spinal column anatomy in case of decompression operations, accuracy and repetition of obtained measurements.
1 dwg
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