Why won't it let me put the bandage on sinner 1 when I finish the operation in Trauma Center?

So I finish the whole operation, kill all the kyriaki and stitch up all the abrasions on the intestine. When it zooms out to his opening that I cut to get inside, I stitch it up, then it zooms out again and I put the green gel on it. When I go to put the bandage on it, it just keeps saying 'miss' 'miss' 'miss'. Every single time! I tried to put it on multiple ways and it still says 'miss'. Eventually the timer just runs out. I need help please!