Surgical sealing element, surgical seal, and surgical sealing system

Surgical seal, in particular, for a trocar and/or for sealing shafts of elongated surgical instruments during insertion into a human or animal body, wherein the seal comprises a first sealing element defining a longitudinal axis, is provided with an opening variable in diameter and oriented transversely or essentially transversely to the longitudinal axis, an instrument being insertable through said opening, and comprises a first flexible wall closed annularly, wherein the first wall has a first and a second edge each closed upon itself and wherein the first edge limits the opening, wherein the first wall is foldable in a wave-like manner and in a sealing position is folded in a wave-like manner without kinks with fold lines extending in the direction towards the first edge in such a manner that the first edge defines a wave line located entirely on a cylindrical surface, wherein a second sealing element identical or essentially identical to the first sealing element is provided and has a second wall also with a first and second edge and wherein the first edge of the first sealing element is connected to the first edge of the second sealing element such that in the first sealing position a wave peak of a first wave line defined by the first edge of the first sealing element engages in a wave trough of a wave line defined by the first edge of the second sealing element.

Surgical sealing system for the insertion of surgical instruments into a human or animal body, preferably along a longitudinal axis defined by the sealing system, comprising a trocar having an insertion opening and a surgical sealing element closing the insertion opening at least partially and having an opening, said surgical sealing element being designed for sealing shafts of elongated surgical instruments during insertion into the human or animal body, wherein the sealing element defines a longitudinal axis, is provided with an opening variable in diameter and oriented transversely or essentially transversely to the longitudinal axis, an instrument being insertable through said opening, and comprises a flexible wall closed annularly, wherein the wall has a first edge and a second edge each closed upon itself and wherein the first edge limits the opening, wherein the wall is foldable in a wave-like manner and in a sealing position is folded in a wave-like manner without kinks with fold lines extending in the direction towards the first edge in such a manner that the first edge defines a wave line located entirely on a cylindrical surface.