I hope your injuries are superficial. Maybe you need to fence around that hatch
.
Hatches can be a PIA to open and close, I`m sure that`s why we may leave them open knowing we are going back in shortly. I`ve often thought about an auto lifting strut, like on a car hood(we call bonnet). I`ve seen struts on simple f/g hatches, you`d need heavy duty strut(s) to lift a square meter or 2 of framed teak parquet with sound deadening material underneath.