Уплотнение с разрезами (гемостатический клапан)
https://www.google.com/patents/US7226433
FIG. 5 is a proximal end view of the self-sealing hemostasis valve 64, and FIG. 6 is a cross section view of the self-sealing hemostasis valve 64 along line 6-6 of FIG. 5. The self-sealing hemostasis valve 64 is made of medical grade silicone material and is symmetrically fashioned to include opposing mirror-like planar and circular-shaped faces 88 and 90 having opposing radiused recessed surfaces 92 and 94 extending therebetween and a circumferential edge 95 between the circular-shaped faces 88 and 90. The medical grade silicone material between the opposing radiused recessed surfaces 92 and 94 is increasingly thinner in a direction towards the center and is parted or otherwise separated to form a plurality of slits 96 a-96 n, each slit extending outwardly in radial fashion from the center of the self-sealing hemostasis valve 64 part of the distance along and between the radiused recessed surfaces 92 and 94, thus creating boundaries beneficial in defining lobes 98 a-98 n.