Metal founding – Process – With measuring – testing – inspecting – or condition determination
Patent
1996-09-30
1998-06-09
Lin, Kuang Y.
Metal founding
Process
With measuring, testing, inspecting, or condition determination
164 34, 164 35, 164 45, 164516, B22C 702
Patent
active
057621250
ABSTRACT:
A method of making a custom, bioimplantable article, such as a joint prosthesis component, is provided using computer aided design, rapid prototyping, and investment casting techniques. The method includes the creation of a data file, using computer aided design (CAD) techniques, that defines a negative or a shell of a portion of a bioimplantable article that is custom configured for a specific arthroplasty patient. The data file for the shell of the custom portion of the bioimplantable article is accessed by a rapid prototyping machine, such as a three-dimensional printer, to create a mold that corresponds to the shell. The mold, generally a heat-resistant ceramic, is positioned relative to an existing, non-custom representation of a bioimplantable article to define a hybrid component. A heat-resistant shell is formed around the hybrid component and the non-custom representation of a bioimplantable article is removed from the shell using heat. Molten metal is introduced into the ceramic shell and allowed to harden. The ceramic shell is removed and the resultant custom, bioimplantable article is subjected to standard surface finishing procedures as required.
REFERENCES:
patent: 3835913 (1974-09-01), Vandemark et al.
patent: 4066116 (1978-01-01), Blazek et al.
patent: 4109699 (1978-08-01), Miller et al.
patent: 4355428 (1982-10-01), Deloison et al.
patent: 4600546 (1986-07-01), Grundei
patent: 4651799 (1987-03-01), Chandley
patent: 4730657 (1988-03-01), Carson et al.
patent: 4844144 (1989-07-01), Murphy et al.
patent: 5007931 (1991-04-01), Smith
patent: 5069271 (1991-12-01), Chandley et al.
patent: 5176188 (1993-01-01), Quinn et al.
patent: 5204055 (1993-04-01), Sachs et al.
patent: 5391460 (1995-02-01), Dougherty et al.
Alternative Methods for Custom Implant Production Utilizing a Combination of Rapid Prototyping Technology and Conventional Investment Casting, B.A. Weeden, A.P. Sanders, D.S. LaSalle, G.P. Trottier, Johnson & Johnson Professional, Inc., 325 Parmount Dr., Raynham., MA 02767, Mar. 31, 1996.
Johnson & Johnson Professional Inc.
Lin Kuang Y.
LandOfFree
Custom bioimplantable article does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Custom bioimplantable article, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Custom bioimplantable article will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2190758