We developed a multimodality fluorescence and optical coherence tomography probe based on a double-clad fiber (DCF) combiner. The probe is composed of a DCF combiner, grin lens, and micromotor in the distal end. An integrated swept-source optical coherence tomography and fluorescence intensity imaging system was developed based on the combined probe for the early diagnoses of atherosclerosis. T...

Either electric or magnetic field can be employed for micro actuation. Each type of actuation principle has its own advantages and drawbacks. This paper presents a comparative study of micro actuators driven by electric and magnetic principles. It is shown that the electrostatic and piezoelectric actuators have good scaling effects whereas the electromagnetic actuators have higher power density...

We report on the implementation of a novel surface acoustic wave driven fluid-coupled rotational micromotor. A pair of opposing surface acoustic waves were generated on a Lithium Niobate substrate, geometrically tailored to asymmetrically enter the water fluid coupling layer. This generated high rotational velocities in the fluid coupling layer and subsequently the disc. Rotation of a 5 mm diam...

Penile strangulation by metal ring is a rare urological emergency situation which requires urgent decompression of the penis to avoid adverse effect. It is usually associated with an attempt to improve sexual act and/or to prolong erection. But sometimes, cutting of the ring to decompress the penis safely is a very difficult task particularly when the strangulating object is a hard metal object...

Abstract First of all, a negative clearance deep drawing scheme is proposed for micromotor shell product with specular surface quality. The condition used to make the material bear strong extrusion and plastic deformation in process so that mirror realized, roughness Ra below 0.2 mm. Next, three-step forming developed, parameters each step are designed optimized. quality evaluated by finite ele...

Different propulsion mechanisms have been suggested for describing the motion of a variety chemical micromotors, which attracted great attention in last decades due to their high efficiency and thrust force, enabling several applications fields environmental remediation biomedicine. Bubble-recoil based motion, particular, has modeled by three different phenomena: capillary forces, bubble growth...