Patent ID: 7810529
Filing Date: 2010-10-12
Classification: A61J,A61L,B29C,B29L,B65B,B65D

Abstract:
1. A device defining a chamber for receiving a substance and a thermoplastic portion in fluid communication with the chamber, the thermoplastic portion defining a penetrable region that is pierceable with an injection member to form an aperture therethrough, and is resealable to hermetically seal the aperture, wherein the thermoplastic portion includes (i) a first polymeric material in a first amount by weight including a styrene block copolymer and defining a first elongation; (ii) a second polymeric material in a second amount by weight that is less then the first amount, including at least one of an ethylene alpha-olefin, a polyolefin, and an olefin, and defining a second elongation that is less than the first elongation; and (iii) a lubricant in an amount that reduces friction forces at an interface of the injection member and thermoplastic portion during penetration thereof.