Surgical sealing element, surgical seal, and surgical sealing system

Around a surgical sealing element, in particular for a trocar and / or to Sealing shafts of elongated surgical instruments during insertion into a human or animal body, wherein the sealing element a longitudinal axis defined, with a variable in diameter and transversely or substantially transversely to the longitudinal axis provided oriented opening is through which an instrument can be inserted, and an annularly closed, flexible wall, said wall having first and second, each having the garter edge and wherein the first Border opening limited to improve so that whatever their instrument shaft diameter all common instruments reliable can be sealed, it is proposed that the wall is undulating in a foldable and Sealing position in such a wavy without Kinks with out extending towards the first edge fold lines is folded so that the first edge defines a wave line, which completely on a cylindrical surface lies.