Results 61 to 70 of about 28,445 (214)

Development and Micro Manufacturing of Coronary Stents in Hungary [PDF]

open access: yes, 2006
Revascularisation by endovascular implant (stent) has great importance in the treatment of coronary artery diseases. Stents are high-technology implants that are the creation of the knowledge of health sciences, physics, chemistry, material science and
Dobránszky, János   +3 more
core  

Ocular Biocompatibility of Nitinol Intraocular Clips [PDF]

open access: yesInvestigative Opthalmology & Visual Science, 2012
To evaluate the tolerance and biocompatibility of a preformed nitinol intraocular clip in an animal model after anterior segment surgery.Yucatan mini-pigs were used. A 30-gauge prototype injector was used to attach a shape memory nitinol clip to the iris of five pigs.
Jeffrey L, Olson   +2 more
openaire   +2 more sources

A shape memory alloy adaptive tuned vibration absorber: design and implementation

open access: yes, 2005
In this paper a tuned vibration absorber (TVA) is realized using shape memory alloy (SMA) elements. The elastic modulus of SMA changes with temperature and this effect is exploited to develop a continuously tunable device.A TVA with beam elements is ...
Brennan, M.J., Mace, B.R., Rustighi, E.
core   +1 more source

Fretting corrosion behavior of nitinol spinal rods in conjunction with titanium pedicle screws [PDF]

open access: yes, 2017
Untypical corrosion damage including erosions combined with the build-up of titanium oxide as a corrosion product on the surface of explanted Nitinol spinal rods in the areas where it was in contact with titanium pedicle screw head is reported.
Blunn, Gordon W   +5 more
core   +1 more source

Histological evaluation of a cochlear implant electrode array with electrically activated shape change for perimodiolar positioning

open access: yesCurrent Directions in Biomedical Engineering, 2018
For the treatment of deafness or severe hearing loss cochlear implants (CI) are used to stimulate the auditory nerve of the inner ear. In order to produce an electrode array which is both atraumatic and reaches a perimodiolar final position a design ...
Rau Thomas S.   +5 more
doaj   +1 more source

Artificial muscle: facts and fiction

open access: yesSwiss Medical Weekly, 2011
Mechanical devices are sought to support insufficient or paralysed striated muscles including the failing heart. Nickel-titanium alloys (nitinol) present the following two properties: (i) super-elasticity, and (ii) the potential to assume different
MC Schaub
doaj   +1 more source

Characterization Techniques of a Shape Memory Nickel Titanium Alloy

open access: yesProceedings, 2020
This paper presents a characterization processes study of metallic alloys, more specifically the shape memory alloys (SMA) composed by Nickel and Titanium (NiTinol).
Carlos Andrade   +4 more
doaj   +1 more source

Processing of Porous NITI Preforms for NITI/MG Composites [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
NiTi alloys are successfully used in engineering and medical applications because of their properties, such as shape memory effect, superelasticity or mechanical strength.
A. Kucharczyk, K. Naplocha, M. Tomanik
doaj   +1 more source

Cyclical bi-directional rotary actuator [PDF]

open access: yes, 1977
A thermally powered rotary actuator is disclosed which is used for positioning a shaft in first and second positions which are disposed 180 deg apart. A pair of heat extensible springs are attached to the shaft and to the frame of the rotary actuator for
Stange, W. C.
core   +1 more source

Which spring is the best? Comparison of methods for virtual stenting. [PDF]

open access: yes, 2014
This paper presents a methodology for modeling the deployment of implantable devices used in minimally invasive vascular interventions. Motivated by the clinical need to perform preinterventional rehearsals of a stent deployment, we have developed ...
Spranger, K, Ventikos, Y
core   +1 more source

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