Aortech International Plc

Jadwiga Weksler

Ajay D Padsalgikar

Elenora Stepanova

Richard Anup D'Mello

This invention relates to electrical devices that are implantable inside an animal, including humans. The invention particularly relates to polyurethane headers mounted on the electrical devices to house electrical contacts. The polyurethane headers are formed by (a) mixing (i) a prepolymer comprising a silicon-containing diol of formula (I) in which R, R, Rand Rare independently selected from Calkyl; Rand Rare independently selected from Calkylene; Ris Calkylene, O, S or NR in which R is H or Calkyl; and n is 1 to 3 and a diisocyanate; and (ii) a Calkanediol; (b) injecting the mixture of the prepolymer and the Calkanediol into a mold having a cavity shaped to form a header; (c) allowing the mixture to cure and form a polyurethane header within the mold; and (d) releasing the formed polyurethane header from the mold. 

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Blackburn, Australia

Jadwiga Weksler