CA2523294A1 - Shape memory alloy articles with improved fatigue performance and methods therefore - Google Patents

Shape memory alloy articles with improved fatigue performance and methods therefore Download PDF

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Publication number
CA2523294A1
CA2523294A1 CA002523294A CA2523294A CA2523294A1 CA 2523294 A1 CA2523294 A1 CA 2523294A1 CA 002523294 A CA002523294 A CA 002523294A CA 2523294 A CA2523294 A CA 2523294A CA 2523294 A1 CA2523294 A1 CA 2523294A1
Authority
CA
Canada
Prior art keywords
shape memory
articles
fatigue performance
straining
memory alloy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002523294A
Other languages
French (fr)
Other versions
CA2523294C (en
Inventor
Bret A. Dooley
Christopher C. Lasley
Michael R. Mitchell
Robert R. Steele
Eric M. Tittelbaugh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WL Gore and Associates Inc
Original Assignee
Gore Enterprise Holdings, Inc.
Bret A. Dooley
Christopher C. Lasley
Michael R. Mitchell
Robert R. Steele
Eric M. Tittelbaugh
W. L. Gore & Associates, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gore Enterprise Holdings, Inc., Bret A. Dooley, Christopher C. Lasley, Michael R. Mitchell, Robert R. Steele, Eric M. Tittelbaugh, W. L. Gore & Associates, Inc. filed Critical Gore Enterprise Holdings, Inc.
Priority to CA2669824A priority Critical patent/CA2669824C/en
Priority to CA2669807A priority patent/CA2669807C/en
Publication of CA2523294A1 publication Critical patent/CA2523294A1/en
Application granted granted Critical
Publication of CA2523294C publication Critical patent/CA2523294C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A61L31/022—Metals or alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/12—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
    • A61L31/121—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having an inorganic matrix
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/006—Resulting in heat recoverable alloys with a memory effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2201/00—Material properties
    • A61C2201/007—Material properties using shape memory effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2400/00—Materials characterised by their function or physical properties
    • A61L2400/16—Materials with shape-memory or superelastic properties

Abstract

Articles made of shape memory alloys having improved fatigue performance and to methods of treating articles formed from those materials by pre-straining the articles (or desired portions) in a controlled manner so that the resultant articles exhibit improved fatigue performance. The shape memory articles are preferably medical devices, more preferably implantable medical devices. They are most preferably devices of nitinol shape memory alloy that is superelastic at normal body temperature. The pre-straining method of the present invention includes the controlled introduction of non-recoverable tensile strains greater than about 0.20% at die surface of a desired portion of a shape memory alloy article. Controlled pre-straining operations are performed on shape-set nitinol metal to achieve non-recoverable tensile stra in greater than about 0.20% at or near the surface of selected regions in the nitinol metal article. The pre-straining operations result in a significant increase in fatigue life of the selectively treated regions and an overall improvement in the fatigue performance of the device.
CA002523294A 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefore Active CA2523294C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA2669824A CA2669824C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefor
CA2669807A CA2669807C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/428,872 2003-05-02
US10/428,872 US7789979B2 (en) 2003-05-02 2003-05-02 Shape memory alloy articles with improved fatigue performance and methods therefor
PCT/US2004/013157 WO2004098450A2 (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefore

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CA2669807A Division CA2669807C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefor
CA2669824A Division CA2669824C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefor

Publications (2)

Publication Number Publication Date
CA2523294A1 true CA2523294A1 (en) 2004-11-18
CA2523294C CA2523294C (en) 2009-09-15

Family

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Family Applications (3)

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CA002523294A Active CA2523294C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefore
CA2669824A Active CA2669824C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefor
CA2669807A Active CA2669807C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefor

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA2669824A Active CA2669824C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefor
CA2669807A Active CA2669807C (en) 2003-05-02 2004-04-29 Shape memory alloy articles with improved fatigue performance and methods therefor

Country Status (6)

Country Link
US (6) US7789979B2 (en)
EP (2) EP3056166B1 (en)
AU (1) AU2004237763B2 (en)
CA (3) CA2523294C (en)
ES (2) ES2577512T3 (en)
WO (1) WO2004098450A2 (en)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7789979B2 (en) * 2003-05-02 2010-09-07 Gore Enterprise Holdings, Inc. Shape memory alloy articles with improved fatigue performance and methods therefor
US20050059994A1 (en) * 2003-09-17 2005-03-17 Steven Walak Fatigue resistant medical devices
US7455738B2 (en) * 2003-10-27 2008-11-25 Paracor Medical, Inc. Long fatigue life nitinol
US20090198096A1 (en) * 2003-10-27 2009-08-06 Paracor Medical, Inc. Long fatigue life cardiac harness
US7648599B2 (en) * 2005-09-13 2010-01-19 Sportswire, LLC Method of preparing nickel titanium alloy for use in manufacturing instruments with improved fatigue resistance
EP2044233B1 (en) 2006-06-16 2016-04-13 Covidien LP Implant having high fatigue resistance, delivery system, and method of use
US8398789B2 (en) 2007-11-30 2013-03-19 Abbott Laboratories Fatigue-resistant nickel-titanium alloys and medical devices using same
US8414714B2 (en) 2008-10-31 2013-04-09 Fort Wayne Metals Research Products Corporation Method for imparting improved fatigue strength to wire made of shape memory alloys, and medical devices made from such wire
US9005377B2 (en) 2009-11-20 2015-04-14 D & S Dental, Llc Method of modifying a physical property of an endodontic instrument
US8911573B2 (en) 2009-11-20 2014-12-16 D & S Dental, Llc Medical instrument with modified memory and flexibility properties and method
US10196713B2 (en) 2009-11-20 2019-02-05 Dentsply Sirona Inc. Medical instrument with modified memory and flexibility properties and method
US8409372B1 (en) 2010-09-02 2013-04-02 The United States of America as Represented by the Administraton of National Aeronautics and Space Administration Thermomechanical methodology for stabilizing shape memory alloy (SMA) response
US9422615B2 (en) * 2011-09-16 2016-08-23 W. L. Gore & Associates, Inc. Single step shape memory alloy expansion
CN102494940B (en) * 2011-12-13 2013-05-08 华东理工大学 Calibration method for brittle fracture evaluation parameters of materials based on Beremin model
US20140142683A1 (en) * 2012-11-21 2014-05-22 Lee Core Stent with elastomeric elements
WO2015073016A1 (en) 2013-11-15 2015-05-21 Massachusetts Institute Of Technology Method for controlling the energy damping of a shape memory alloy with surface roughness
US10541070B2 (en) 2016-04-25 2020-01-21 Haier Us Appliance Solutions, Inc. Method for forming a bed of stabilized magneto-caloric material
RU169763U1 (en) * 2016-04-26 2017-03-31 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный медицинский университет" Министерства здравоохранения Российской Федерации (ФГБОУ ВО КубГМУ Минздрава России) A model for determining the cyclic strength of mechanical endodontic instruments when preparing root canals
US10299655B2 (en) 2016-05-16 2019-05-28 General Electric Company Caloric heat pump dishwasher appliance
US10047979B2 (en) 2016-07-19 2018-08-14 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10047980B2 (en) 2016-07-19 2018-08-14 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10274231B2 (en) 2016-07-19 2019-04-30 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US10281177B2 (en) 2016-07-19 2019-05-07 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US10222101B2 (en) 2016-07-19 2019-03-05 Haier Us Appliance Solutions, Inc. Linearly-actuated magnetocaloric heat pump
US10295227B2 (en) 2016-07-19 2019-05-21 Haier Us Appliance Solutions, Inc. Caloric heat pump system
US10443585B2 (en) 2016-08-26 2019-10-15 Haier Us Appliance Solutions, Inc. Pump for a heat pump system
US10288326B2 (en) 2016-12-06 2019-05-14 Haier Us Appliance Solutions, Inc. Conduction heat pump
US10386096B2 (en) 2016-12-06 2019-08-20 Haier Us Appliance Solutions, Inc. Magnet assembly for a magneto-caloric heat pump
US10527325B2 (en) 2017-03-28 2020-01-07 Haier Us Appliance Solutions, Inc. Refrigerator appliance
US11009282B2 (en) 2017-03-28 2021-05-18 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10451320B2 (en) 2017-05-25 2019-10-22 Haier Us Appliance Solutions, Inc. Refrigerator appliance with water condensing features
US10451322B2 (en) 2017-07-19 2019-10-22 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10422555B2 (en) 2017-07-19 2019-09-24 Haier Us Appliance Solutions, Inc. Refrigerator appliance with a caloric heat pump
US10520229B2 (en) 2017-11-14 2019-12-31 Haier Us Appliance Solutions, Inc. Caloric heat pump for an appliance
US11022348B2 (en) 2017-12-12 2021-06-01 Haier Us Appliance Solutions, Inc. Caloric heat pump for an appliance
US10648705B2 (en) 2018-04-18 2020-05-12 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10876770B2 (en) 2018-04-18 2020-12-29 Haier Us Appliance Solutions, Inc. Method for operating an elasto-caloric heat pump with variable pre-strain
US10830506B2 (en) 2018-04-18 2020-11-10 Haier Us Appliance Solutions, Inc. Variable speed magneto-caloric thermal diode assembly
US10551095B2 (en) 2018-04-18 2020-02-04 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10782051B2 (en) 2018-04-18 2020-09-22 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10648706B2 (en) 2018-04-18 2020-05-12 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with an axially pinned magneto-caloric cylinder
US10648704B2 (en) 2018-04-18 2020-05-12 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10641539B2 (en) 2018-04-18 2020-05-05 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly
US10557649B2 (en) 2018-04-18 2020-02-11 Haier Us Appliance Solutions, Inc. Variable temperature magneto-caloric thermal diode assembly
US10989449B2 (en) 2018-05-10 2021-04-27 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with radial supports
US11054176B2 (en) 2018-05-10 2021-07-06 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with a modular magnet system
US11015842B2 (en) 2018-05-10 2021-05-25 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with radial polarity alignment
US11092364B2 (en) 2018-07-17 2021-08-17 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with a heat transfer fluid circuit
US10684044B2 (en) 2018-07-17 2020-06-16 Haier Us Appliance Solutions, Inc. Magneto-caloric thermal diode assembly with a rotating heat exchanger
US11185608B2 (en) 2018-08-09 2021-11-30 Cook Medical Technologies Llc Method of treating a superelastic medical device to improve fatigue life
US11149994B2 (en) 2019-01-08 2021-10-19 Haier Us Appliance Solutions, Inc. Uneven flow valve for a caloric regenerator
US11168926B2 (en) 2019-01-08 2021-11-09 Haier Us Appliance Solutions, Inc. Leveraged mechano-caloric heat pump
US11274860B2 (en) 2019-01-08 2022-03-15 Haier Us Appliance Solutions, Inc. Mechano-caloric stage with inner and outer sleeves
US11193697B2 (en) 2019-01-08 2021-12-07 Haier Us Appliance Solutions, Inc. Fan speed control method for caloric heat pump systems
US11112146B2 (en) 2019-02-12 2021-09-07 Haier Us Appliance Solutions, Inc. Heat pump and cascaded caloric regenerator assembly
US11015843B2 (en) 2019-05-29 2021-05-25 Haier Us Appliance Solutions, Inc. Caloric heat pump hydraulic system
WO2022093959A1 (en) * 2020-10-27 2022-05-05 Boston Scientific Scimed, Inc. Medical devices having increased fatigue resistance
CN117026115B (en) * 2023-06-26 2024-03-05 同济大学 Treatment method for repairing nanocrystalline nickel-titanium alloy functional fatigue by using direct current

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067752A (en) * 1973-11-19 1978-01-10 Raychem Corporation Austenitic aging of metallic compositions
US3948688A (en) * 1975-02-28 1976-04-06 Texas Instruments Incorporated Martensitic alloy conditioning
CH616270A5 (en) 1977-05-06 1980-03-14 Bbc Brown Boveri & Cie
US4665906A (en) * 1983-10-14 1987-05-19 Raychem Corporation Medical devices incorporating sim alloy elements
US4631094A (en) 1984-11-06 1986-12-23 Raychem Corporation Method of processing a nickel/titanium-based shape memory alloy and article produced therefrom
US4830262A (en) * 1985-11-19 1989-05-16 Nippon Seisen Co., Ltd. Method of making titanium-nickel alloys by consolidation of compound material
JP2769616B2 (en) * 1987-03-30 1998-06-25 時枝 直満 Polycrystalline crystal orientation rearrangement method
US4935068A (en) * 1989-01-23 1990-06-19 Raychem Corporation Method of treating a sample of an alloy
KR940005307B1 (en) * 1989-04-28 1994-06-16 또낀 코포레이션 Readily operable catheter guide wire using shape memory alloy with pseudo elasticity
US5111401A (en) * 1990-05-19 1992-05-05 The United States Of America As Represented By The Secretary Of The Navy Navigational control system for an autonomous vehicle
FR2664836B1 (en) * 1990-07-20 1992-11-13 Imago THERMO-MECHANICAL TREATMENT MACHINE FOR MEMORY-SHAPED ALLOY ELEMENTS.
JPH07505316A (en) 1992-03-31 1995-06-15 ボストン　サイエンティフィック　コーポレーション medical wire
US5490859A (en) * 1992-11-13 1996-02-13 Scimed Life Systems, Inc. Expandable intravascular occlusion material removal devices and methods of use
ES2166370T3 (en) * 1993-01-19 2002-04-16 Schneider Usa Inc IMPLANTABLE FILAMENT IN COMPOSITE MATERIAL.
US6165210A (en) * 1994-04-01 2000-12-26 Gore Enterprise Holdings, Inc. Self-expandable helical intravascular stent and stent-graft
WO1995031945A1 (en) 1994-05-19 1995-11-30 Scimed Life Systems, Inc. Improved tissue supporting devices
US5842312A (en) * 1995-03-01 1998-12-01 E*Sorb Systems Hysteretic damping apparati and methods
US5611874A (en) * 1995-07-26 1997-03-18 Surface Genesis, Inc. Clad shape memory alloy composite structure and method
US6053992A (en) * 1995-12-06 2000-04-25 Memry Corporation Shape memory alloy sealing components
US6068623A (en) 1997-03-06 2000-05-30 Percusurge, Inc. Hollow medical wires and methods of constructing same
US5843244A (en) 1996-06-13 1998-12-01 Nitinol Devices And Components Shape memory alloy treatment
WO1997049353A1 (en) 1996-06-25 1997-12-31 Medtronic, Inc. A population of intraluminal prostheses having uniform characteristics and a process for making the same
US5836066A (en) * 1996-07-22 1998-11-17 Innovative Dynamics, Inc. Process for the production of two-way shape memory alloys
US5782741A (en) 1996-11-12 1998-07-21 Guidant Coropration Two-stage treatment wire
US6451049B2 (en) * 1998-04-29 2002-09-17 Sorin Biomedica Cardio, S.P.A. Stents for angioplasty
US6129755A (en) * 1998-01-09 2000-10-10 Nitinol Development Corporation Intravascular stent having an improved strut configuration
US6019779A (en) 1998-10-09 2000-02-01 Intratherapeutics Inc. Multi-filar coil medical stent
US6165140A (en) * 1998-12-28 2000-12-26 Micrus Corporation Composite guidewire
ATE382310T1 (en) * 1999-01-22 2008-01-15 Gore Enterprise Holdings Inc METHOD FOR COMPRESSING AN ENDOPROSTHESIS
EP1152775A1 (en) * 1999-02-26 2001-11-14 Advanced Cardiovascular Systems, Inc. Composite super elastic/shape memory alloy and malleable alloy stent
US6214016B1 (en) * 1999-04-29 2001-04-10 Medtronic, Inc. Medical instrument positioning device internal to a catheter or lead and method of use
US6579246B2 (en) * 1999-12-22 2003-06-17 Sarcos, Lc Coronary guidewire system
US6245100B1 (en) * 2000-02-01 2001-06-12 Cordis Corporation Method for making a self-expanding stent-graft
US7722663B1 (en) * 2000-04-24 2010-05-25 Scimed Life Systems, Inc. Anatomically correct endoluminal prostheses
WO2001095697A2 (en) 2000-06-13 2001-12-20 Smart Therapeutics, Inc. Fatigue-resistant conductive wire article
JP3782289B2 (en) 2000-07-06 2006-06-07 トキコーポレーション株式会社 Method of processing shape memory alloy and shape memory alloy
US6602272B2 (en) * 2000-11-02 2003-08-05 Advanced Cardiovascular Systems, Inc. Devices configured from heat shaped, strain hardened nickel-titanium
US7976648B1 (en) 2000-11-02 2011-07-12 Abbott Cardiovascular Systems Inc. Heat treatment for cold worked nitinol to impart a shape setting capability without eventually developing stress-induced martensite
US6605110B2 (en) 2001-06-29 2003-08-12 Advanced Cardiovascular Systems, Inc. Stent with enhanced bendability and flexibility
US20030045786A1 (en) * 2001-09-05 2003-03-06 Medtronic, Inc. Method and apparatus for analysis of structures
US20030060873A1 (en) * 2001-09-19 2003-03-27 Nanomedical Technologies, Inc. Metallic structures incorporating bioactive materials and methods for creating the same
US7022063B2 (en) * 2002-01-07 2006-04-04 Paracor Medical, Inc. Cardiac harness
US7731744B1 (en) 2002-10-25 2010-06-08 Advanced Cariovascular Systems, Inc. Intravascular stent for treating vulnerable plaque and method of use
US7789979B2 (en) 2003-05-02 2010-09-07 Gore Enterprise Holdings, Inc. Shape memory alloy articles with improved fatigue performance and methods therefor
US8414714B2 (en) 2008-10-31 2013-04-09 Fort Wayne Metals Research Products Corporation Method for imparting improved fatigue strength to wire made of shape memory alloys, and medical devices made from such wire

Also Published As

Publication number Publication date
US20120323298A1 (en) 2012-12-20
CA2669824A1 (en) 2004-11-18
AU2004237763B2 (en) 2008-10-30
US20100331946A1 (en) 2010-12-30
US20070088426A1 (en) 2007-04-19
EP3056166B1 (en) 2017-08-16
US7789979B2 (en) 2010-09-07
US8709177B2 (en) 2014-04-29
WO2004098450A3 (en) 2005-05-12
ES2647354T3 (en) 2017-12-21
EP1624828B1 (en) 2016-03-23
US8216396B2 (en) 2012-07-10
CA2523294C (en) 2009-09-15
US20100319815A1 (en) 2010-12-23
US20040216814A1 (en) 2004-11-04
CA2669807C (en) 2013-11-12
US20140207228A1 (en) 2014-07-24
WO2004098450A2 (en) 2004-11-18
CA2669807A1 (en) 2004-11-18
ES2577512T3 (en) 2016-07-15
AU2004237763A1 (en) 2004-11-18
CA2669824C (en) 2013-01-15
EP3056166A1 (en) 2016-08-17
US8177927B2 (en) 2012-05-15
EP1624828A2 (en) 2006-02-15
US7811393B2 (en) 2010-10-12
EP1624828A4 (en) 2011-03-09

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