Patent ID: 7137519

Claim:
A closure ( 1 ) for a medicine bottle comprising a cap portion ( 2 ) connectable to the bottle, the cap portion ( 2 ) having at least one opening ( 3 ) closed off by an elastic, puncturable sealing layer ( 4 ), the opening ( 3 ) being covered on an outside by a cover element ( 5 ) which is tightly and releasably connected to a rim ( 8 ) of the opening ( 3 ), wherein the cover element ( 5 ) is interlockingly connected to the rim ( 8 ), with no material bonding, by an edge region ( 6 ) of the cover element ( 5 ) encircling the opening ( 3 ), and wherein the sealing layer ( 4 ) makes flush, sterile contact, free from any material bond, with a reverse side of the cover element ( 5 ) facing the opening ( 3 ), wherein the cover element ( 5 ) is constructed as a cover cap which engages with its edge region behind at least one undercut in the cap portion ( 2 ), and wherein the undercut is formed on a groove in the cap portion ( 2 ) surrounding the opening ( 3 ).