| 主权项 |
1. A sealing means for sealing of an introduction facility for a medical instrument, the sealing means comprising:
a first sealing membrane of an elastic material, the first sealing membrane having an annular first edge profile at least partially defining an outer boundary of the first sealing membrane, and a dome-shaped region extending between the first edge profile, the dome-shaped region having a first slit extending therethrough; and a second sealing membrane of an elastic material, the second sealing membrane having an annular second edge profile at least partially defining an outer boundary, of the second sealing membrane, and a dome-shaped region extending between the second edge profile, the dome-shaped region having a second slit extending therethrough; the first sealing membrane and the second sealing membrane laminarily abutting on each other; the first sealing membrane and the second sealing membrane being arranged such that the first slit and the second slit are not parallel with each other, and each of the first slit and the second slit being unbranched. |
