I have a similar question. I'm a newbie so I can't post a new thread. I have a modern earth-based sf novel where a character gets stabbed in the abdomen/chest area and this should keep him immobile for a long time. 1 1/2 weeks in artificial coma (blood loss) and then for weeks he really can't move, has a catheter etc...

Would infection complications achieve this? maybe it doesn't need to be too gory!

Thanks