A review of shape memory alloy based filtration devices

Yang, Chi; Abanteriba, Sylvester; Becker, Andrew

doi:10.1063/1.5133981

Cited by 16 publications

(11 citation statements)

References 109 publications

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“…[140][141][142] Other nitinol based IVC filters such as the OptEase filter and the Recovery Ò filter systems are also commercially available in the market. 143,144 A similar medical device that employs the properties of SMAs to treat cardiovascular anomalies is the Self-Expanding Stents (Figure 10(f)). They are rapidly expanding cardiovascular SMA cylindrical mesh tubes, that fulfill the purpose of maintaining the inner diameter of the blood vessels when implanted.…”

Section: Surgical Applicationsmentioning

confidence: 99%

The role of NiTi shape memory alloys in quality of life improvement through medical advancements: A comprehensive review

Nair

Radhika

2022

Proc Inst Mech Eng H

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The significance of advanced smart materials in recent technological research and advancement is apparent from its extensive use in present day devices and instruments. Of the various smart materials in use today, the fascinating category of shape memory alloys (SMAs) is equipped with the ability to return to a previously memorized shape under certain thermomechanical or magnetic stimuli. The unique property of shape memory effect and superelasticity displayed by these materials along with good biocompatibility and corrosion resistance make them ideal for biomedical applications. The various applications of SMAs in surgical instruments, surgical implants, and assistive and rehabilitative devices have significant effect on the day to day life of people in the present age. Majority of these biomedical devices belong to the orthodontic, orthopedic, or surgical fields. Other remarkable applications of SMAs such as in the production of prostheses and orthoses designed through the biomimetic approach are also highly influential in improving the quality of life. The present paper provides an overview of the various properties of shape memory alloys and their applications in the biomedical field over the years, that have had a significant impact on the realm of medical science.

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Section: Surgical Applicationsmentioning

confidence: 99%

The role of NiTi shape memory alloys in quality of life improvement through medical advancements: A comprehensive review

Nair

Radhika

2022

Proc Inst Mech Eng H

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“…1 The name "Nitinol" is an acronym for Nickel (Ni)-Titanium (Ti) and Naval Ordinance Laboratory (NOL), where the alloy was first developed in 1960s. [2][3][4] NiTi exhibits two unique properties: shape memory effect and superelasticity. 1,5 The shape memory effect is the ability of a material to undergo plastic deformation at a low temperature state (martensite phase), then recovers back to its original undeformed shape when heated above the transformation temperature (austenite phase).…”

Section: Introductionmentioning

confidence: 99%

“…), and orthodontic devices (archwires, springs, expanders, etc.). [4][5][6] NiTi is commonly produced by two different methods, vacuum induction melting (VIM) and vacuum arc remelting (VAR), and each method has its own pros and cons. 5,[7][8][9] While the VIM method is effective in producing a homogeneous melt mix of Ni and Ti, it picks up a small amount of carbon from the graphite crucible used for melt mixing to form titanium carbide (TiC) inclusions in the alloy.…”

Section: Introductionmentioning

confidence: 99%

“…Nitinol (NiTi) is an alloy containing nearly equiatomic composition (49–51 at %) of nickel and titanium 1 . The name “Nitinol” is an acronym for Nickel (Ni)–Titanium (Ti) and Naval Ordinance Laboratory (NOL), where the alloy was first developed in 1960s 2–4 . NiTi exhibits two unique properties: shape memory effect and superelasticity 1,5 .…”

Section: Introductionmentioning

confidence: 99%

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Surface finishing of Nitinol for implantable medical devices: A review

et al. 2022

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Nitinol (NiTi), a nickel–titanium alloy, has been used for various cardiovascular, orthopedic, fracture fixation, and orthodontic devices. As with most other metallic biomaterials, the corrosion resistance and biocompatibility of NiTi are primarily determined by the properties of the surface oxide layer such as thickness, chemical composition, structure, uniformity, and stability. Currently, a number of finishing methods are used to improve the properties of surface oxide of NiTi with an ultimate goal to produce a defect‐free, impurity‐free, thin homogeneous oxide layer that is stable and composed of only titanium dioxide (TiO2) with negligible amount of Ni species. This review discusses the effects of various surface finishing methods such as mechanical polishing, electropolishing, magnetoelectropolishing, heat treatments at different temperatures, passivation, chemical etching, boiling in water, hydrogen peroxide treatment, and sterilization techniques (steam autoclave, ethylene oxide, dry heat, peracetic acid, and plasma‐based treatments) on the properties of a surface oxide layer and how it impacts the corrosion resistance of NiTi. Considering the findings of the literature review, a checklist has been provided to assist with choosing finishing/sterilization methods and relevant rationale and recommendations to consider when selecting a surface finishing process for NiTi used in implantable medical devices.

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“…The shape memory effect is the name for SMA's unique characteristic (SME). SMA phase change may be induced by either sending an electrical current through the structure or increasing the structure's temperature over its phase transformation temperature with an external heat source [1]. Cu-based SMAs are in high demand because of their low cost and excellent mechanical and shape memory capabilities.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ceo2 Addition on Transformation Temperatures and Wear Resistance of Cu-Al-Ni Shape Memory Alloys

Hammadi¹,

Adnan²,

Alsarraf³

2022

ETJ

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 Enhance Transformations Temperature for SMAs by adding CeO 2 particles with different percentages.  Enhance Wear behavior for SMAs BY adding CeO 2 particles with different percentages.  Enhance Hardness for SMAs BY adding CeO 2 particles with different percentages. SMAs can switch from one crystallographic structure to another in response to temperature or stress stimuli. When SMAs are exposed to mechanical cyclic stress, they can absorb and discharge mechanical energy by experiencing a reversible hysteretic shape change. SMAs are widely used for sensing, actuation, impact absorption, and vibration damping. This work studied the effect of CeO 2 addition on the transformation temperature and wear resistance of Cu-Al-Ni SMAs. WhereCeO 2 was added at different percent's 0.5, 1, and 3 wt% to the base alloy, followed by casting and homogenization at 900 o C. Some tests were carried out: Differential scanning calorimeter, Optical Microscope, Scanning Electron microscopy, Energy dispersion spectrometer, X-Ray Diffraction, and Wear and Hardness tests. OM and SEM tests reveal that both phases of martensite β and γ are found. Also, the additions of CeO 2 show a visible effect on phase formation and transformation temperatures. It was observed that increasing of CeO2 particles in Cu-based SMAs owing to improve interfacial bonding between matrix and reinforcement and also observed that the variants become thicker with increasing in percent. Additions of different percentages of cerium oxide increase the hardness of Cu-Al-Ni SMAs. Due to the addition of CeO 2 particles, the sample's wear rate decreases compared to pure SMAs.

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A review of shape memory alloy based filtration devices

Cited by 16 publications

References 109 publications

The role of NiTi shape memory alloys in quality of life improvement through medical advancements: A comprehensive review

The role of NiTi shape memory alloys in quality of life improvement through medical advancements: A comprehensive review

Surface finishing of Nitinol for implantable medical devices: A review

The Effect of Ceo2 Addition on Transformation Temperatures and Wear Resistance of Cu-Al-Ni Shape Memory Alloys

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