Radiopaque and MRI compatible nitinol alloys for medical...

Details Radiopaque and MRI compatible nitinol alloys for medical... Radiopaque and MRI compatible nitinol alloys for medical...

2006-10-31

2006-10-31

Willse, David H. (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Stent structure

C623S001190

Reexamination Certificate

active

07128757

ABSTRACT:
A radiopaque nitinol medical device such as a stent for use with or implantation in a body lumen is disclosed. The stent is made from a superelastic alloy such as nickel-titanium or nitinol, and includes a ternary element selected from the group of chemical elements consisting of iridium, platinum, gold, rhenium, tungsten, palladium, rhodium, tantalum, silver, ruthenium, or hafnium. The nitinol stent has improved radiopacity yet retains its superelastic and shape memory behavior and further maintains a thin strut/wall thickness for high flexibility. Another embodiment includes a balloon expandable stent made from a radiopaque and MRI compatible alloy such as nitinol and includes a ternary element selected from the group of chemical elements consisting of iridium, platinum, gold, rhenium, tungsten, palladium, rhodium, tantalum, silver, ruthenium, hafnium, osmium, zirconium, niobium, or molybdenum.

REFERENCES:
patent: 4505767 (1985-03-01), Quin
patent: 4631094 (1986-12-01), Simpson et al.
patent: 4740253 (1988-04-01), Simpson et al.
patent: 4770725 (1988-09-01), Simpson et al.
patent: 4881981 (1989-11-01), Thoma et al.
patent: 5002563 (1991-03-01), Pyka et al.
patent: 5201901 (1993-04-01), Harada et al.
patent: 5411476 (1995-05-01), Abrams et al.
patent: 5465717 (1995-11-01), Imran et al.
patent: 5486183 (1996-01-01), Middleman et al.
patent: 5562641 (1996-10-01), Flomenblit et al.
patent: 5630840 (1997-05-01), Mayer
patent: 5632746 (1997-05-01), Middleman et al.
patent: 5637089 (1997-06-01), Abrams et al.
patent: 5641364 (1997-06-01), Golberg et al.
patent: 5643312 (1997-07-01), Fischell et al.
patent: 5667522 (1997-09-01), Flomenblit et al.
patent: 5690644 (1997-11-01), Yurek et al.
patent: 5720754 (1998-02-01), Middleman et al.
patent: 5843244 (1998-12-01), Pelton et al.
patent: 5885381 (1999-03-01), Mitose et al.
patent: 5891191 (1999-04-01), Stinson
patent: 5902317 (1999-05-01), Kleshinski et al.
patent: 5927345 (1999-07-01), Samson
patent: 5951793 (1999-09-01), Mitose et al.
patent: 5976153 (1999-11-01), Fischell et al.
patent: 5989280 (1999-11-01), Euteneuer et al.
patent: 6001123 (1999-12-01), Lau
patent: 6004330 (1999-12-01), Middleman et al.
patent: 6051021 (2000-04-01), Frid
patent: 6059810 (2000-05-01), Brown et al.
patent: 6068623 (2000-05-01), Zadno-Azizi et al.
patent: 6137060 (2000-10-01), Avellanet
patent: 6171334 (2001-01-01), Cox
patent: 6183409 (2001-02-01), Armini
patent: 6190332 (2001-02-01), Muni et al.
patent: 6210312 (2001-04-01), Nagy
patent: 6217567 (2001-04-01), Zadno-Azizi et al.
patent: 6312454 (2001-11-01), Stockel et al.
patent: 6312455 (2001-11-01), Duerig et al.
patent: 6325824 (2001-12-01), Limon
patent: 6329069 (2001-12-01), Azizi et al.
patent: 6375628 (2002-04-01), Zadno Azizi et al.
patent: 6375629 (2002-04-01), Muni et al.
patent: 6380457 (2002-04-01), Yurek et al.
patent: 6419693 (2002-07-01), Fariabi
patent: 6432116 (2002-08-01), Callister et al.
patent: 6461453 (2002-10-01), Abrams et al.
patent: 6468230 (2002-10-01), Muni et al.
patent: 6572646 (2003-06-01), Boylan et al.
patent: 6582461 (2003-06-01), Burmeister et al.
patent: 6755855 (2004-06-01), Yurek et al.
patent: 6786984 (2004-09-01), Hanada et al.
patent: 2001/0049549 (2001-12-01), Boylan et al.
patent: 2002/0082681 (2002-06-01), Boylan et al.
patent: 2003/0055449 (2003-03-01), Lee et al.
patent: 0 873 734 (1998-10-01), None
patent: 0873734 (1998-10-01), None
patent: WO 97 24978 (1997-07-01), None
patent: WO 02 051462 (2002-07-01), None
patent: WO 03 097148 (2003-11-01), None
U.S. Appl. No. 09/452,516, filed Dec. 1, 1999.
U.S. Appl. No. 09/572,352, filed May 17, 2000.
Foreign patent office search report and written opinion for International Application No. PCT/US2005/004698.
Yang, J.H. et al.,Stress-Induced transformation and Superelasticity in Ni-Ti-Nb Alloys, Journal De Physique IV, pp. C8-771-776 (Dec. 1995).
Stockel, D. et al.,Superelastic.Ni-Ti-Wire, Wire Journal International, pp. 45-50 (Mar. 1991).
Schetky, L.M., Shape Memory Alloys,Scientific American, pp. 74-82 (Nov. 1979).
Russell, S.M. et al.,Improved NiTi Alloys for Medical Applications, Proceedings of the Second International Conference on Shape Memory and Superelastic Technologies, pp. 429-436, 1997.
Proft, J.L. et al.,The Mechanical Aspects of Constrained Recovery, Raychem Corp., pp. 115-129 (1985).
Perkins, J.,Ti-Ni and Ti-Ni-X Shape Memory Alloys, Metals Forum, vol. 3, pp. 153-163 (1981).
Pelton, A.R. et al., Optimisation of Processing and Properties of Medical Grade Nitinol Wire,Min Invas Ther&Allied Technol 200, 9(1), 107-118 (2000).
Otsuka, K. et al.,Shape Memory Effect, Shape Memory Materials, p. 41 (1998).
Lindquist, P.G., Ph.D., Structure and Transformation Behavior of Martensitic Ti(Ni, Pd) and Ti(Ni, Pt) Alloys,Unioversity of Illinois at Urbana-Champaign(1988).
Lin, Z.C. et al.,The Study on Superelasticity of NiTiPt wire as a function of Application Temperature, Technical Report, Guidant Corp., pp. 1-4 (Jun. 19, 2003).
Enami, K. et al. Effect of W addition on the Martensitic Transformation and Shape Memory Behavior of the TiNi-Base Alloys,Journal De Physique IV, vol. 5-C8, pp. 629-C86, Dec. 1995.
Duerig, T.W. et al.,Superelastic Nitinol for Medical Devices, Medical Plastics and Biomaterials Magazine, pp. 1-14, Mar. 1997.
Duerig, T.W. et al., “An Engineers Perspective of Pseudoelasticity,”The Mechanisms of Pseudoelasticity, 369-393.

Affiliated with

Also associated with

Rating

Radiopaque and MRI compatible nitinol alloys for medical... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radiopaque and MRI compatible nitinol alloys for medical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiopaque and MRI compatible nitinol alloys for medical... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3655079