Abstract: The invention relates to a blood cannula for discharging blood into a vessel, in particular aortic cannula for discharging blood into an aortic arch during heart-bypass surgery, comprising a tubular body (1), the tubular body having a straight part at the proximal end (2) and a bent part at the distal end (3) leading into an outlet opening (5), wherein the distal end (3), in particular the bent part has an increasing cross section in the direction of blood flow (B).

Abstract: The invention relates to a blood cannula for discharging blood into a vessel, in particular aortic cannula for discharging blood into an aortic arch during heart-bypass surgery, comprising a tubular body (1), the tubular body having a straight part at the proximal end (2) and a bent part at the distal end (3) leading into an outlet opening (5), wherein the distal end (3), in particular the bent part has an increasing cross section in the direction of blood flow (B).

Abstract: Sheathing for reinforcing natural veins for use as surgical implants in the form of textile netting that is configured by forming a seamless, tubular, essentially pile-less, knit fabric and has loops having large, open apertures having essentially polygonal shapes is made available.

Abstract: The invention relates to a method for placing a flexible jacket 3 on a natural vessel section 5, in particular a vein, to a device for placing a flexible jacket 3 in accordance with said method, and to an auxiliary instrument 1 for use in said method. The method comprises the following steps: pushing the jacket 3 onto a tubular application aid 2, filling the vessel section with a fluid, introducing, in particular pulling, the filled vessel section 5 into the application aid 2, the filling of the vessel section and the introduction of the vessel section 5 into the application aid 2 being carried out with the assistance of a tubular auxiliary instrument 1, and pulling the application aid 2 and the tubular auxiliary instrument 1 apart while at the same time pulling the vessel section 5 out of the application aid 2 and depositing the jacket 3 on the surface of the vessel section 5.

Abstract: Sheathing for reinforcing natural veins for use as surgical implants in the form of textile netting that is configured by forming a seamless, tubular, essentially pile-less, knit fabric and has loops having large, open apertures having essentially polygonal shapes is made available.