Four slider apparatus for forming curved rectangular bodied needles and method

摘要

An apparatus for forming a curved, flat sided surgical needle, which comprises a frame member including an anvil member having an arcuate surface profile; a movable first die member for simultaneously imparting an arcuate profile and at least a pair of first opposing flat surfaces to a body portion of a needle blank and adapted to receive a needle blank, the first die member having an arcuate needle forming surface which is substantially parallel to the arcuate surface of the anvil member; a first side tool for curving a tapered end portion of the needle blank about the anvil; a transfer tool adapted to slide the needle blank along the anvil a side press adapted to import second flat surfaces to a second pair of opposing sides of the body portion of the needle blank; a second side tool member for curving a drill end portion of the needle blank about the anvil; and an ejection tool for moving the needle blank away from the anvil.