Patent ID: 8262623

Claim:
A valve assembly ( 20 ) for use in an access port, in particular a medical access port, comprising: a first sealing valve ( 1 ); and a second sealing valve ( 2 ) provided with an annular base ( 21 ) and a central member ( 23 ) having a wall with a radially outwardly increasing thickness being provided with a funnel shaped entrance ( 26 ) to a central bore ( 24 ), wherein the central member ( 23 ) is at the outer circumference movably suspended to the annular base ( 21 ) by means of a flexible diaphragm ( 22 ), which diaphragm ( 22 ) is more flexible than the central member ( 23 ) characterized in that the central member ( 23 ) is substantially disk shaped with a height H and diameter D, wherein the ration H/D is at least 0.15 and preferably 0.5, such that the wall forming the bore is thick enough to provide a stable shape of the bore.