Suraj Panigrahi
Phone:
+918090919942
+4915146912162
Email:
suraj.panigrahi@rwth-aachen.de
Address:
Haarener Gracht 7a/b, 52080 Aachen, Germany
Date of Birth:
October 11, 1995
Hello! I'm Suraj
I am a medical technology enthusiast with particular interests in translational research. I want to see my research projects escalate from 'bench-to-bedside'. My areas of interest lie in biomaterials and biomechanics.
Beyond research and study, I have a knack for science and business communication. My articles have been selected for Medium Features in Business and Technology sections and also in several science magazines of India. Lately, I have been venting my thoughts on my blog 'A Numb Mind'.
RESEARCH EXPERIENCE
EDUCATION
May 2017—July 2017
Research Internship
BIOMECHANICS AND BIOENGINEERING LAB (BMBI), UMR CNRS 7338, SORBONNE UNIVERSITIES, UNIVERSITE TECHNOLOGY DE COMPIEGNE, FRANCE
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Designed an ergonomic scalable lower extremity exoskeleton (SLEEXO) for lower limb gait rehabilitation using CREO and SolidWorks. Demonstrated adjustability parameters on a 3D model generated using ScanIP from CT scan images.
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Performed musculoskeletal simulations in OpenSim to generate muscle activations for a patient with knee implant as in Grand Challenge 4 for in vivo prediction of knee loads. Validated simulation results using comparative plots of the available EMG data. Analyzed and compared muscle activations for the patient without an exoskeleton and with a virtual exoskeleton.​
May 2016—July2016
Research Internship
IIT DELHI
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Explored the methodology to design a non-invasive impedance based blood pressure measuring patch.
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Prepared the bill of materials for electronic components required to design the circuit
2014-2018
Master of Science in​
Biomedical Engineering
RWTH Aachen, Germany
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2014-2018
Bachelor of Technology in
Mechanical Engineering
Indian Institute of Technology (BHU) Varanasi
Overall GPA: 8.16/10
Percentage: 81.6%
Senior Thesis: Tapered Coronary Stents: A Broad Study
Open Electives: Bioinstrumentation, Signals and Systems
2013
High School Diploma
D.A.V. Public School Chandrasekharpur
Percentage: 93.80%
PROJECTS
Data-Driven Pesudo-Anthropomorphic Design of a Scalable Lower Extremity Exoskeleton
Anthropomorphic Design of lower limb exoskeletons not only provides ease of mobility but also aid to the comfort of the user. However, most of the existing lower extremity exoskeletons are pseudo-anthropomorphic due to complicated mechanics of human joints. SLEEXO is an adjustable lower extremity pseudo-anthropomorphic exoskeleton that has been designed considering various aspects of ergonomics. The novelty of our work lies in the evaluation of the design process through fitting on a 3D model of a person generated from CT Scan images. Many of the previously designed exoskeletons either ignored the ergonomic aspect of the design or didn’t demonstrate the feasibility computationally. The first ergonomic design criteria for exoskeleton based human-robot interaction was presented by Schiele and van der Helm. SLEEXO has scalable geometrical features that can accommodate a large range of subjects but it incorporates patient specific actuation design targeting a specific pathology.
Stochastic Analysis of Lumen Gradient of Coronary Artery
Guide: Dr. S.K. Panda, IIT (BHU), Dr. Om Shankar, IMS (BHU)
Background
Quantifying the tapering gradient of coronary arteries is a stepping stone towards designing tapered coronary stents. The traditional cylindrical stent currently used in percutaneous coronary interventions has a consistent diameter which doesn’t match with anatomical change in coronary artery. Further, the tapered coronary stents improve the hemodynamics in the coronary arteries as compared to the traditional uniform diameter stents. Previous studies have shown that South Asians are one of the highest risk ethnic groups for the development of coronary artery diseases and the coronary artery diameter varies significantly from Caucasians. Therefore, we performed a retrospective observational study and evaluated the tapering gradients of normal arteries of patients who underwent cardiac catheterization at Sir Sunder Lal Hospital, Institute of Medical Sciences (Banaras Hindu University).
Methods and Results
Arteriographically normal coronary angiograms were analysed from the following groups of subjects: group 1(age, 31-45) consisted of 164 males and 157 female subjects, group 2 (age 46-60) consisted of 174 males and 167 females subjects, group 3 (age, 61-78) consisted of 161 males and 156 female subjects. Quantitative coronary angiographic analysis of Right Circumflex Artery (RCA), Left Anterior Descending Artery (LAD) and Left Circumflex Artery (LCx) was performed using CAAS QCA software and the tapering gradients of the proximal, mid and distal segments for LCx, RCA and LAD were obtained. Stochastic analysis of the data was done. It was observed that two parameter Weibull Model could accurately model the variations of tapering gradients among various segments and different age groups.
Conclusions: The paper presents a general distribution that can account for tapering gradient of 3 coronary arteries of Indians among various age groups. The investigatory data will be particularly useful for designing patient specific tapered cardiovascular stents.
KEYWORDS
• quantitative angiography • Weibull distribution •tapering gradient • edge detection • coronary arteries
Myocardial infraction as a criteria for elimination of arteries
Evaluating Lower Limb Exoskeleton Effectiveness in Rehabilitation of Patient with Total Knee Replacement
Guide: Dr. Tien Tuan Dao, Dr. M.C. Ho Ba Tho
Wearable robotic devices can enhance elderly mobility. These devices can reduce the metabolic cost of walking by decreasing the muscle activations. In this project, OpenSim simulations are performed to generate comparative plots of an old person with total knee replacement (TKR) and healthy subjects in terms of normalized muscle activations and joint moments. Further, another comparison is drawn to establish the effectiveness of exoskeletons by implementing coordinate actuation in OpenSim assuming the actuation to be uniarticular and unidirectional. Modular design was incorporated by actuating different sets of joint.
PUBLICATIONS
Conference Presentations
A Dhuliyawalla, S Panigrahi, MC Ho Ba Tho, TT Dao (2017). Data-driven and human-inspired design of a scalable lower extremity exoskeleton. In: 7th International Conference on Computational Bioengineering , 6-8 September, Compiègne, France
Conference Proceeding can be downloaded here
Peer-Reviewed Journals
Submitted/In Revision
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Panigrahi S, Panda SK, Shankar O, Bhushan A(2018). Stochastic Analysis of Lumen Gradient of Coronary Artery. Journal of Biomechanics
SKILLS
Programming Languages: Python, C++, MATLAB, HTML, CSS, PHP, MySQL
Computer Aided Design: CREO Parametric (PRO/E), SolidWorks
Finite Element Analysis: ANSYS, COMSOL
Medical Imaging: CAAS QCA 3D, ScanIP, MIMICS, ImageJ
Statistical Tools: R, Python Pandas, WeibPar, SAS
OpenSim, Adobe Creative Suite, MathType, Arduino, LaTex
BLOG
• 'A Numb Mind' is my effort to reach out to people. You will find my personal experiences, articles on latest scientific discoveries and market research. You will find articles on scientific research without many jargons and this will be an enriching experience for you. Read, enjoy and voice your opinions as comments!
• 'Neuromarketing: Pressing Your Buy Button' selected for publication in Science Reporter
• CEMACUBE-European Innovation Technology Scholarship to pursue Joint Master’s at RWTH Aachen and Trinity College Dublin (2018) in Biomedical Engineering
• J.N. Tata Endowment Scholarship for Higher Education of Indians in foreign universities awarded to 100 students annually (2018)
​• IIT (BHU) Gymkhana Awards: Certificate of Merit for excellence in the field of Robotics (2016)
• Inter-IIT Cultural: 2nd Prize in Graphic Design event
• Merit-cum-Means Scholarship awarded to top 25% students of each department (2014-2018)
• IIT (BHU) Gymkhana Awards: Honorable Mention for excellence in the field of Creative Design (2017)
• TechFest 2015: Third position in a manual robotics event in the largest technical fest of India (2015)
• Colloquium: Second Prize for paper presentation in the category 'Thermal Engineering' (2016)​​