Laser shock peening of medical devices

Details Laser shock peening of medical devices Laser shock peening of medical devices

2004-02-13

2011-11-01

Elve, M. Alexandra (Department: 3742)

Electric heating

Metal heating

By arc

C219S121780, C219S121840

Reexamination Certificate

active

08049137

ABSTRACT:
A laser shock peening process for producing one or more compressive residual stress regions in a medical device is disclosed. A high-energy laser apparatus can be utilized to direct an intense laser beam through a confining medium and onto the target surface of a workpiece. An absorption overlay disposed on the target surface of the workpiece absorbs the laser beam, inducing a pressure shock wave that forms a compressive residual stress region deep within the workpiece. Medical devices such as stents and guidewires having one or more of these compressive residual stress regions are also disclosed.

REFERENCES:
patent: 3850698 (1974-11-01), Mallozzi et al.
patent: 4401477 (1983-08-01), Clauer et al.
patent: 5766192 (1998-06-01), Zacca
patent: 5846057 (1998-12-01), Ferrigno et al.
patent: 5902254 (1999-05-01), Magram
patent: 5911891 (1999-06-01), Dulaney et al.
patent: 5954740 (1999-09-01), Ravenscroft et al.
patent: 5987042 (1999-11-01), Staver et al.
patent: 6002706 (1999-12-01), Staver et al.
patent: 6021154 (2000-02-01), Unternahrer
patent: 6049058 (2000-04-01), Dulaney et al.
patent: 6094260 (2000-07-01), Rockstroh et al.
patent: 6110192 (2000-08-01), Ravenscroft et al.
patent: 6198069 (2001-03-01), Hackel et al.
patent: 6410884 (2002-06-01), Hackel et al.
patent: 6423935 (2002-07-01), Hackel et al.
patent: 6474135 (2002-11-01), Clauer et al.
patent: 6479790 (2002-11-01), Graham et al.
patent: 6492615 (2002-12-01), Flanagan
patent: 6657160 (2003-12-01), Hackel et al.
patent: 6664506 (2003-12-01), Clauer et al.
patent: 6670577 (2003-12-01), Staver et al.
patent: 6670578 (2003-12-01), Hackel et al.
patent: 6904658 (2005-06-01), Hines
patent: 7335426 (2008-02-01), Marton et al.
patent: 2002/0095208 (2002-07-01), Gregorich et al.
patent: 2003/0038123 (2003-02-01), Dykes et al.
patent: 2003/0062350 (2003-04-01), Staver et al.
patent: 2003/1021378 (2003-11-01), Dykes et al.
patent: 2004/0011774 (2004-01-01), Tenaglia et al.
patent: 2004/0016278 (2004-01-01), Douman et al.
patent: 2004/0224179 (2004-11-01), Sokol et al.
patent: 2005/0049690 (2005-03-01), Boismier et al.
patent: 2005/0059994 (2005-03-01), Walak et al.
patent: 2005/0182478 (2005-08-01), Holman et al.
patent: 2007/0100285 (2007-05-01), Griffin et al.
patent: 0 924 306 (1999-06-01), None
patent: 1 122 321 (2001-08-01), None
patent: 1 188 842 (2002-03-01), None
patent: 1803483 (2007-07-01), None
Hill et al., “Laser Peening Technology”, Advanced Material & Processes, Aug. 2003, pp. 65-67.
Minamitani et al., “Excimer Laser Processing Ssytem Using Holographic Optical Elements”, Mitsubishit Electric Advance, Dec. 1997, 3 pgs.
Nikitin at al., “High temperature fatigue behavior and residual stress stability of laser-shock peened and deep rolled austenitic steel AISI 304”, Scripta Materialia 50 (2004) pp. 1345-1350.
Peyre et al., “Corrosion Reactivity of Laser-Peened Steel Surfaces”, Journal of Materials Engineering and Performance, vol. 9(6) Dec. 2000, pp. 656-662.
VanAken, “Engineering Concepts: Laser Shock Processing”, University of Missouri-Rolla, Dept. of Metallurical Engineering. http:/hvww.industrialheating.com/CDA/ArticleInfrmation/features/BNP—Features—Ite, Nov. 7, 2003, 2 pgs.
Zhang et al., “Micro Scale Laser Shock Processing of Metallic Components”, Journal of Manufacturing Science and Engineering, May 2002, vol. 124, pp. 369-378.

Affiliated with

Also associated with

Rating

Laser shock peening of medical devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser shock peening of medical devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser shock peening of medical devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4268108