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US 4,351,326 AGranted
Copper wire for intrauterina contraceptive devices and a method for manufacturing the same
AssigneeOutokumpu Oy
InventorAhti A. Kosonen
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Abstract
A copper wire for intrauterine contraceptive devices is disclosed as having a core wire of a flexible tough metal nobler than copper and a copper coating fixed on the core wire by means of a thin diffusion layer.
Claims1
A method for preventing conception comprising placing in the uterus an intrauterine contraceptive device having a wire form a corrosion-resistant core wire of some ductile metal nobler than copper and a coating of copper fixed onto the core wire by means of a thin diffusion layer.
Dependencies are inferred from the claim text.