M. Ali Nasseri

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—To design compact and precise robotic devices for medical applications one of the most important initial steps is choosing suitable actuators. In typical situations there is a trade-off between working volume and precision. This trade-off and decision making is more serious in micro scale operations like ophthalmic surgeries. This paper analyzes the(More)
STUDY DESIGN A cross-sectional study. PURPOSE To describe the correlation between lumbar lordosis angle and functional status of patients with chronic mechanical low back pain (CMLBP). OVERVIEW OF LITERATURE There are different and conflicting opinions regarding the relationship between the degree of lumbar lordosis and functional status of patients(More)
which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. We appreciate the interest in our work and for the opportunity to focus on detailed aspects of chronic mechanical low back pain. The reader attempted to emphasize the importance of pelvic incidence as a predictive factor(More)
which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. We are extremely grateful for the opportunity to discuss the details that have been raised by Kothari et al. Although Kothari et al. have conducted an intelligent review , we would like to address a few points raised in(More)
STUDY DESIGN A prospective, cross-sectional, non-randomized study. PURPOSE To assess the effectiveness of intramuscular calcitonin injection in the treatment of lumbar spinal stenosis (LSS). OVERVIEW OF LITERATURE LSS, manifesting as chronic low back pain and neurogenic claudication, is a chronic condition with an increasing incidence in the elderly(More)
Vitreo-retinal surgery is challenging, as delicate structures have to be manipulated. Eliminating tremor caused by human motions when doing micromanipulation can therefore improve the outcome of such an intervention. An eye surgery robot has been built to overcome this problem. The contribution of this paper is the design of a telemanipulation setup for the(More)
PURPOSE We aimed to investigate the utility of sympathetic skin response (SSR) test for evaluating vasculogenic erectile dysfunction (ED) which is the most common type of impotence. MATERIALS AND METHODS Men in the age group of 28 to 60 years and suffering from vasculogenic ED, as confirmed by a papaverin test and color Doppler sonography, at least for 6(More)
Low transparency is one of the major drawbacks of passivity-based control approaches in teleoperation systems, particularly when time delay exists in the communication channel. In this work, we improved the transparency of time-delayed teleoperation. For this, we used a passivity-based control approach with the generalized scattering transformation. To(More)