A haemostatic device for minimally invasive surgery, especially that performed in the abdominal cavity, is in the form of an absorbent disc made of a biodegradable porous material with a center and a radial extension of at least 10 mm from the center, where the disc is formed in such a way that it can be converted into a radially reduced intermediate state with an essentially rotation-symmetrically shortened radius, in which state it can be introduced into the body through a tube, from which it can be released in the flat form.