Patent ID: 7762308
Filing Date: 2010-07-27
Classification: B22C,B22D,Y10T

Abstract:
1. A method of forming a cast portion of a medical device, comprising: injecting molten metal into a fluid-entry end of a sprue of a casting mold using centrifugation, the molten metal being reactive during injection such that the molten metal can undergo reactions at a surface of the sprue, the sprue being in fluid communication with at least one side runner; impacting at least a portion of the molten metal against a closed end of the sprue; and backfilling the at least one side runner with molten metal to form at least one cast object, the at least one cast object having a major axis length less than about one inch and the at least one side runner including a major axis angled closer to the fluid-entry end than the closed end.