Hello Stefan,
Thank you for sharing valuable info about your accident and I hope you will fully recover and able kiting again some day (maybe your kid will become a pro !). Having the same accident again won't happen very likely. One can say that kiting changed your life twice yet.
It is scary to read that you "didn't see or feel any danger" even just before the accident.
Almost looks like years of experience is working against you from some point on(over-confidence).
I am -again- aware now accidents can happen to anyone because we all human and keep making mistakes The second biggest mistake is probably thinking it gonna happen to everyone else accept yourself. The biggest mistake is that we humans often think we are stronger than mother Nature !!
But all this is "achteraf gelul" we say in Dutch.

What I would like to know if one of your friends (the windsurfer) saw what exactly happened. The discussion going on at Hanglos website about your accident is worthwhile reading
Regards, Theo