Abstract: A device for displaying assistance information for surgical operation 1 includes an endoscope 11, a CT device 30, an image pickup device 20, a surface shape calculating unit 43, a coordinate axis matching unit 44 that matches the shape of the patient surface by the CT device 30 and the shape of the patient surface calculated from the image, an endoscope optical axis calculating unit 45 that calculates a ray indicative of an optical axis in the image pickup direction of the endoscope 11, an intersection calculating unit 46 that calculates an intersection of the ray and the plane constituting the internal parts of the patient 60, and an outputting unit 47 that outputs the information indicative of the intersection after overlapping the information on the information indicative of the shape of the patient 60.

Abstract: An object of the present invention is to accurately display to which region of a patient, a part the image of which is being picked up by an endoscope corresponds without the need to newly use a special endoscope.

Abstract: Disclosed herein is a plant growth medium obtained by forming a mixture of a conventional powdery plant culture medium and a gel-formable material into a sheet and then solidifying the sheet or by forming a mixture of such a conventional culture medium, a gel-formable material and a water-holding material into a sheet, granules, pellets, tablets or powder and then solidifying the thus-formed mixture. By simply adding water to the plant growth medium and reconstituting same, the plant growth medium can be used for the germination, growth, transplantation, cutting and the like of a plant.