1905461-A1 cites 15 patents.

Techniques for forming cast parts for medical devices suitable for contact with internal regions of patients are described herein. Such parts can be small in scale (e.g., having a major axis less than 0.3 inches, and/or a minor axis less than about 0.08 inches), and can be formed from metals that have a high melting point and high reactivity with environmental components or mold surfaces, such as stainless steel and titanium alloys. Such techniques can include injecting molten metal into the sprue of a mold tree such that the side runners are backfilled after the molten metal impacts a closed end of the sprue. Side runners can be oriented in particular directions and positions to promote backfilling. As well, flask temperatures and the use of surfactants can also promote cast part formation, hindering the formation of surface defects.

Title
Cast parts with improved surface properties and methods for their production
Application Number
EP20070253851 20070927
Publication Number
1905461 (A1)
Application Date
September 27, 2007
Publication Date
April 2, 2008
Inventor
Onukuri Samardh
US
Deforce Brian S
US
Heaney Donald F
US
Potter Tracy J
US
Crawford William A
US
Assignee
Ethicon Endo Surgery
US
IPC
B22D 25/00
B22D 18/04
B22D 13/00
A61L 31/02
A61F 02/00
A61L 27/00
B22D 25/02
B22D 18/04
B22D 13/10
A61L 31/02
A61L 27/06
A61F 02/00
A61L 27/04
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