Process for producing medical instruments

摘要

A process for producing medical instruments (7) comprising the operations of extruding plastic material in order to obtain a heated tubular element (1) made of molten state plastic material, performing on the tubular element (1) a blow molding in order to obtain a plurality of medical containers (6). The process comprises the operation of calibrating the inner surface (6a) of the various medical containers (6), performed after the operation of extruding plastic material, in order to make smooth and continuous the inner surface (6a) of each of the medical containers (6).

主权项

1. Process for producing syringes (7) comprising the following operations:
extruding plastic material in order to obtain a heated tubular element (1) made of at least partially molten state plastic material; performing on said heated tubular element (1) a blow moulding operation in order to obtain a plurality of medical containers (6) having a prefixed shape;calibrating the complete inner surface (6a) of at least one of said medical containers (6), in a calibrating operation performed after said operation of extruding said plastic material, suitable to make smooth and continuous said inner surface (6a) of said medical containers (6) wherein said calibrating operation includes the following operations:introducing one or more shaped tools (2) into said heated tubular element (1), performed after said extruding of said tubular element (1);pressing said tubular element (1) onto said shaped tools (2), performed before said blow moulding operation;wherein said extruding operation and said blow moulding operation occur within a forming mould (3) having a plurality of cavities each of which having a profile which produces the prefixed shape for each of said medical containers (6), said forming mould (3) being composed of two half-shells (4, 5) facing and opposite each other.