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Pub. No.:    WO/2018/078723    International Application No.:    PCT/JP2016/081600
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Wed Oct 26 01:59:59 CEST 2016
IPC: A61B 34/20
Applicants: LEXI CO., LTD.
株式会社 レキシー
Inventors: ABE, Yuichiro
安倍 雄一郎
清徳 省雄
Provided is a surgery assistance system including: a body fitting jig 1 which is to be attached to a predetermined attachment site of a body on which surgery is to be performed; and a surgery assistance device which assists surgery by displaying an augmented reality image. The body fitting jig has: a site engaging part 11 which is engageable with the predetermined attachment site; and an image-recognizable part 12 which is provided with features which can be image-recognized for the display of the augmented reality image by the surgery assistance device. The surgery assistance device has a central control unit which recognizes the body fitting jig attached to the predetermined attachment site and the image-recognizable part in a captured image of the site to be operated, estimates the position and posture of the body fitting jig in the captured image, and causes a display unit to display a first augmented reality image superimposed over the captured image, the first augmented reality image virtually representing the site to be operated in a position and posture corresponding to the estimated position and posture of the body fitting jig in the captured image.