Manufacturing method a structural part with a cannula, a cannula, a structural part, an insertion head and an insertion device with the cannula

摘要

A method for manufacturing a structural part with a cannula for the subcutaneous administration of an active substance is disclosed. A loose cannula is threaded on a piercing means to form a ready-to-use cannula piercing unit and subsequently, a cannula housing is injection-molded onto the cannula. Embodiments for the cannula as well as the structural part, an application part, an insertion head, and an insertion device which includes the cannula are also disclosed.

主权项

1. A method for manufacturing a structural part for a subcutaneous administration of an active substance, said method comprising:
providing a cannula having an end area that deviates from a shape of a rest of a cannula area; providing a piercing needle; threading the cannula on the piercing needle, wherein after threading the cannula on the piercing needle a part of the piercing needle protrudes from the end area of the cannula; and subsequently, injection-molding a cannula housing onto the end area of the cannula, and onto an area of the part of the piercing needle protruding from the end area of the cannula that is adjacent to the end area of the cannula.