Scanning mirror for optical coherence tomography using an electrostatic MEMS actuator

Zara, Jason M.; Yazdanfar, Siavash; Rao, K. Divakara; Izatt, Joseph A.; Smith, Stephen W.

doi:10.1117/12.479037

Cited by 5 publications

(5 citation statements)

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“…Although a wide range of technological advances are being pursued by multiple groups, three areas of study are of particular importance for intravascular imaging: spectral based OCT for high-speed imaging; microelectrical mechanical devices, to remove the need for moving parts within the catheter; and the development of an OCT guidewire. More detailed discussions can be found in the cited references (11,(17)(18)(19)45,46).…”

Section: C75mentioning

confidence: 99%

Plaque Characterization With Optical Coherence Tomography

Stamper

Weissman

Brezinski

2006

Journal of the American College of Cardiology

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The identification of unstable plaque is central in risk-stratifying patients for acute coronary events. Optical coherence tomography (OCT) is a recently introduced imaging modality that has shown considerable promise for the identification of high-risk plaques. Advantages of OCT include its high resolution (4 to 20 microm), high data acquisition rate, small and inexpensive guidewires/catheters, and ability to be combined with adjuvant optical techniques. This article summarizes the current state of intravascular OCT imaging, focusing on potential markers of instability and current limitations.

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Section: C75mentioning

confidence: 99%

Plaque Characterization With Optical Coherence Tomography

Stamper

Weissman

Brezinski

2006

Journal of the American College of Cardiology

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“…By using capacitive cells contraction due to electrostatic force, polyimide conductive strips can generate a motion up to 77° and 142° at a resonance of 20.6 Hz and 41.2 Hz and 50° static. The samples of in-vitro porcine colon and eyeball are reported for this device [ 73 , 74 , 75 ]. Because of the larger area for electrostatic charges, the induced force can be higher.…”

Section: Actuation Principlesmentioning

confidence: 99%

Scanning Micromirror Platform Based on MEMS Technology for Medical Application

et al. 2016

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This topical review discusses recent development and trends on scanning micromirrors for biomedical applications. This also includes a biomedical micro robot for precise manipulations in a limited volume. The characteristics of medical scanning micromirror are explained in general with the fundamental of microelectromechanical systems (MEMS) for fabrication processes. Along with the explanations of mechanism and design, the principle of actuation are provided for general readers. In this review, several testing methodology and examples are described based on many types of actuators, such as, electrothermal actuators, electrostatic actuators, electromagnetic actuators, pneumatic actuators, and shape memory alloy. Moreover, this review provides description of the key fabrication processes and common materials in order to be a basic guideline for selecting micro-actuators. With recent developments on scanning micromirrors, performances of biomedical application are enhanced for higher resolution, high accuracy, and high dexterity. With further developments on integrations and control schemes, MEMS-based scanning micromirrors would be able to achieve a better performance for medical applications due to small size, ease in microfabrication, mass production, high scanning speed, low power consumption, mechanical stable, and integration compatibility.

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“…Although a wide range of technological advances are being pursued by multiple groups, three areas of study are of particular importance for intravascular imaging; spectral based OCT, MEMs (microelectrical mechanical devices) based catheters [42,43], and the development of an OCT guidewire. Those interested can find more detailed discussions of these engineering issues in references cited [4,17 -20,42,43].…”

Section: Technological Investigationsmentioning

confidence: 99%

Optical coherence tomography for identifying unstable coronary plaque

Brezinski

2006

International Journal of Cardiology

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Scanning mirror for optical coherence tomography using an electrostatic MEMS actuator

Cited by 5 publications

References 0 publications

Plaque Characterization With Optical Coherence Tomography

Plaque Characterization With Optical Coherence Tomography

Scanning Micromirror Platform Based on MEMS Technology for Medical Application

Optical coherence tomography for identifying unstable coronary plaque

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