Patent ID: 6838617

Claim:
A macroencapsulation container device comprising in combination: an outer body member and an outer lid member, both composed of metal; an inner body member and an inner lid member, both composed of a thermoplastic material, wherein said inner body member is joined to the inner wall of said outer body member; outer closure means for releasably joining said outer lid member to said outer body member; and permanent sealing means for joining said inner lid member to said inner body member by thermo-bonding said inner lid member to said inner body member such that said inner lid member and said inner body member in combination form an integral inner container member; wherein said permanent sealing means comprises at least one electrical resistance wire embedded within said inner lid member, whereby said at least one electrical resistance wire generates sufficient heat upon application of an electric current such that said inner lid member and said inner body member undergo localized melting such that said inner lid member is permanently joined to said inner body member upon cooling.