Title:
SHAPE MEMORY ARTICLES AND METHODS FOR CONTROLLING PROPERTIES
Document Type and Number:
WIPO Patent Application WO/2018/201111
Kind Code:
A3
Abstract:
Methods for controlling properties of structural elements of implantable medical devices, where the structural elements contain shape memory alloys (SMAs) include promoting or inhibiting in vivo formation of R-phase crystal structure or converging or separating the R-phase from the austenite phase.
Inventors:
FRANCIS RICHARD (US)
VEGOE BRETT (US)
GOREHAM-VOSS CURTIS (US)
ROBERTSON SCOTT (US)
CATOOR DHIRAJ (US)
VEGOE BRETT (US)
GOREHAM-VOSS CURTIS (US)
ROBERTSON SCOTT (US)
CATOOR DHIRAJ (US)
Application Number:
PCT/US2018/030053
Publication Date:
December 13, 2018
Filing Date:
April 28, 2018
Export Citation:
Assignee:
MEDTRONIC INC (US)
International Classes:
C22C1/02; A61F2/06; A61F2/94; A61L27/06; A61L31/02; A61L31/14; C22C14/00; C22C19/03; C22F1/00; C22F1/10
Domestic Patent References:
| WO2009070784A1 | 2009-06-04 | |||
| WO1999016385A1 | 1999-04-08 | |||
| WO2009131689A1 | 2009-10-29 |
Foreign References:
| JPS62211339A | 1987-09-17 | |||
| US20120227302A1 | 2012-09-13 | |||
| EP2215461B1 | 2011-05-11 |
Other References:
MCKELVEY; RITCHIE: "On the temperature dependence of the superelastic strength and the prediction of the theoretical uniaxial transformation strain in Nitinol", PHILOSOPHICAL MAGAZINE A, vol. 80, no. 8, 2000, pages 1756 - 1762, XP002783171, ISSN: 0141-8610, DOI: 10.1080/01418610008219082
BENAFAN ET AL.: "Temperature dependent deformation of the B2 austenite phase of a NiTi shape memory alloy", INTERNATIONAL JOURNAL OF PLASTICITY, vol. 51, 2013, pages 103 - 121, XP002783172, DOI: 10.1016/j.ijplas.2013.06.003
FONTE; SAIGAL: "Shape Recovery Effects of Solid, Forged Nitinol for Orthopedic Applications, Medical Device Materials V", PROCEEDINGS FROM THE MATERIALS & PROCESSES FOR MEDICAL DEVICES CONFERENCE 2009 (ASM INTERNATIONAL), 31 December 2010 (2010-12-31), XP002783173
"INTRODUCTION TO NITINOL", SAES GROUP COMPANY MEMRY, 28 December 2017 (2017-12-28), USA, pages 1 - 40, XP002785007
BENAFAN ET AL.: "Temperature dependent deformation of the B2 austenite phase of a NiTi shape memory alloy", INTERNATIONAL JOURNAL OF PLASTICITY, vol. 51, 2013, pages 103 - 121, XP002783172, DOI: 10.1016/j.ijplas.2013.06.003
FONTE; SAIGAL: "Shape Recovery Effects of Solid, Forged Nitinol for Orthopedic Applications, Medical Device Materials V", PROCEEDINGS FROM THE MATERIALS & PROCESSES FOR MEDICAL DEVICES CONFERENCE 2009 (ASM INTERNATIONAL), 31 December 2010 (2010-12-31), XP002783173
"INTRODUCTION TO NITINOL", SAES GROUP COMPANY MEMRY, 28 December 2017 (2017-12-28), USA, pages 1 - 40, XP002785007
Attorney, Agent or Firm:
HAYNES, William, H. (US)
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