| abstract |
The invention discloses an intelligent interbody fusion cage, which comprises an outer sleeve and an inner sleeve; the outer sleeve and the inner sleeve are both provided with an opening at one end, the other end of the outer sleeve is provided with an end face, the opening end of the outer sleeve is sleeved at the opening end of the inner sleeve, the outer sleeve and the inner sleeve are in clearance fit, a stress sensor is arranged in a clearance between the outer sleeve and the inner sleeve, a stress sensor and a displacement sensor are arranged on a supporting part between the opening end of the inner sleeve and the outer sleeve, and a gravity sensor is arranged on the inner. The invention can accurately judge whether the patient achieves bone fusion or not under the condition of not carrying out X-ray and CT examination, increases the accuracy of bone fusion judgment, and can record and feed back the self position, stress condition and the like of the fusion device after being implanted. |