Aus Feinguss hergestellte Endeffektoren für endoskopisches chirurgisches Einweginstrument

摘要

An investment cast bronze end effector blade (40) for a disposable laparoscopic surgical instrument (10) having a push rod (60) is disclosed. The end effector blade has an aperture (98) for engaging clevis means (30) which couple the push rod of the instrument to the end effector blade. The end effector blade has a body member having a distal element (94) and a base element (96) integral with integral first and second masses of bronze. The base element is an extended portion substantially parallel to and in an offset configuration with the sharp edge portion, and includes an aperture to which the coupling means couples. The first mass of bronze integral with the investment cast end effector blade bridges the offset configuration between the sharp edge element and the base element. The second mass of bronze integral with the investment cast blade partially surrounds the aperture of the base element and extends to the end of the base element remote from the distal portion.