Journal Publications

• T.M. Balaramakrishnan, S. Natarajan, S. Sujatha (2020). Roll-over shape of a prosthetic foot: a finite element evaluation and experimental validation. Medical and Biological Engineering and Computing. Published online: https://doi.org/10.1007/s11517-020-02214-9
• R. Saini, S. Chandramohan, S. Sujatha, H. Kumar (2020). Design of Bypass Rotary Vane Magneto Rheological Damper for Prosthetic Knee Application. Journal of Intelligent Material Systems and Structures. Accepted for publication.
• S.Sudeesh, S. Sujatha and MS Shunmugam (2020). The effects of polycentric knee design and alignment on swing phase gait parameters: A simulation approach. Journal of Prosthetics and Orthotics. Accepted for publication.
• T.M. Balaramakrishnan, S. Natarajan, S. Sujatha (2020).Design of a Biomimetic SACH Foot: An Experimentally Verified Finite Element Approach. Journal of Biomimetics, Biomaterials and Biomedical Engineering 45, 22-30.
• S.Sudeesh, S. Sujatha and MS Shunmugam (2020). On the possibility of achieving near-normal swing phase of walking with passive single-axis and polycentric knees: A simulation approach. Journal of Prosthetics and Orthotics 32(2), 121-133.
• S. Seid, S. Chandramohan, S. Sujatha (2019). Design and Evaluation of a Magnetorheological Damper Based Prosthetic Knee, International Journal of Engineering (IJE), IJE TRANSACTIONS A: Basics. 32(1), 146-152.
• S. Sujatha, G. Bapat and S.S. Dash (2019). GRID: A Model for the Development of Assistive Devices in Developing Countries. Disability and Rehabilitation - Assistive Technology. Published online.https://doi.org/10.1080/17483107.2019.1673838.
• G. Bapat and S. Sujatha (2019). A two-dimensional mathematical model to simulate the effects of knee center misalignment in lower limb orthoses. Journal of Prosthetics and Orthotics. Accepted for publication.
• G. Bapat and S. Sujatha (2019). Identification and analysis of Knee-Ankle-Foot orthosis design requirements based on a feedback survey of orthosis users in India. Disability and Rehabilitation - Assistive Technology 14(1), 82-90.
• Roger O. Smith, Marcia Scherer, Rory Cooper, Diane Bell, David A. Hobbs, Cecilia Pettersson, Nicky Seymour, Johan Borg, Michelle J. Johnson, Joseph P. Lane, S. Sujatha, PVM Rao, Qussai M. Obiedat, Mac MacLachlan & Stephen Bauer (2018). Assistive technology products: a position paper from the first global research, innovation, and education on assistive technology (GREAT) summit, Disability and Rehabilitation: Assistive Technology, DOI: 10.1080/17483107.2018.1473895
• S. Seid, S. Chandramohan and S. Sujatha (2018). Optimal design of an MR damper valve for prosthetic knee application. Journal of Mechanical Science and Technology, 32(6),2959--2965, 2018
• G. Bapat, R. Ojha, P. Chalageri and S. Sujatha (2018). Gait kinematics and energy expenditure of knee-ankle-foot orthosis users walking with stance phase knee flexion: A pilot study. JPO: Journal of Prosthetics and Orthotics 30 (2), 101-107.
• N. Babu, S. Sujatha, S. Narayanan and V. Balamurugan (2017). New approach for prediction of influence of vehicle dynamics parameters on instability of unmanned track vehicle using robotics approach. Journal of Mechanical Science and Technology, 32 (3), 1357-1365.
• G. Bapat and S. Sujatha (2017). A method for optimal synthesis of a biomimetic four-bar linkage knee joint for a knee-ankle-foot orthosis. Journal of Biomimetics, Biomaterials and Biomedical Engineering, 32, 20--28.
• S. Seid, S. Sujatha and S. Chandramohan (2017). Performance Evaluation of MR Damper Valve Configurations Using Finite Element Method. International Journal of Engineering Transactions B: Applications, 30(2), 303--310.
• D. S. Mohan Varma and S. Sujatha (2017). Segmental Contributions to the Center of Mass Movement in Normal Gait. Applied Mathematical Modelling, 46, 328--338.
• T. S. Anand and S. Sujatha (2017). A Method for Performance Comparison of Polycentric Knees and its Application to the Design of a Knee for Developing Countries. Prosthetics and Orthotics International, 41(4), 402--411.
• S. Seid, S. Sujatha, C. Sujatha. Design and Evaluation of Swing Phase Controllers for Single-Axis Knee (2016). Int. J. Bioautomation, 20(3), 373--388.
• P. S. Satyanarayana, B. Loganathan, V. Lakshminarasimhan, A. Ramesh and S. Sujatha (2015). Development of a Cam Phaser System to Improve the Performance of a Small Engine, SAE Int. J. Engines 8(1), 250--257.
• S. Veer and S. Sujatha. Approximate Spring Balancing of Linkages to Reduce Actuator Requirements. Mechanism and Machine Theory, 86, 108--124, 2015.
• D. S. Mohan Varma and S. Sujatha. Segmental Contributions to the Ground Reaction Force in the Single Support Phase of Gait. Mechanical Sciences, 5, 37--52, 2014
• U. Kumaraswamy, M. S. Shunmugam, and S. Sujatha. A Unified Framework for Tolerance Analysis of Planar and Spatial Mechanisms Using Screw Theory. Mechanism and Machine Theory, 69, 168--184, 2013
• S. Srinivasan, E. R. Westervelt, and A. H. Hansen. A Sagittal-Plane Forward Dynamic Model for Asymmetric Gait and its Application to Study Gait of Transtibial Prosthesis Users. ASME Journal of Biomechanical Engineering, 131, 031003 (9 pages), 2009.
• S. Srinivasan, I. Raptis, and E. R. Westervelt. A Low-dimensional Sagittal-Plane Model for Normal Human Walking. ASME Journal of Biomechanical Engineering, 130, 051017(11 pages), 2008.
• S. Srinivasan and S. Kramer. Design of a knee mechanism for a knee disarticulation prosthesis. American Society of Mechanical Engineers, Design Engineering Division (Publication) DE 71(pt 2), pp. 455-461, 1994.

Refereed Conference Publications

• S. Das, S. Halder, S.K. Sahu, S. Sujatha and S. Rakshit. Design and Development of a Sit-To-Stand Assistive Device. Proceedings of the 4th International and 19th National Conference on Machines and Mechanisms (iNaCoMM 2019) held at IIT Mandi (5-7 Dec 2019).
• S. Pitou, B. Michael, G. Bapat, S. Sujatha and M. Howard. Low-Cost Textile Myoelectric Control of Knee-Ankle-Foot-Orthosis. 2019 IEEE Global Humanitarian Technology Conference (GHTC), Seattle, WA, USA(17-20 Oct 2019).
• V. Sarda, S. Dash and S. Sujatha. User Centric Affordable Standing Wheelchair for Developing Countries. Proceedings of the XXVI Congress of the International Society of Biomechanics, Brisbane, Australia (23-27 July 2017).
• G. Bapat and S. Sujatha. Four-bar Knee Joint for Knee-Ankle-Foot Orthosis. Proceedings of the XXVI Congress of the International Society of Biomechanics, Brisbane, Australia (23-27 July 2017).
• G. Bapat and S. Sujatha. Simulation-based method for quantifying pistoning motion in a lower limb orthosis. XVI International Symposium on Computer Simulation in Biomechanics, Gold Coast, Australia (20-22 July 2017).
• S. Seid, S. Sujatha, and C. Sujatha. Design of controller for single-axis knee using hydraulic damper. Proceedings of 2015 12TH IEEE AFRICON International Conference held in Addis Ababa, Ethiopia (Sep 14-17, 2015).
• S. Seid, S. Sujatha, and C. Sujatha. Design of controller for single-axis knee using MR damper. Proceedings of ECCOMAS Thematic International Conference on Multibody Dynamics held in Barcelona, Spain (June 2015), pp. 989-998.
• Ganesh Bapat and S. Sujatha. Design and Analysis of an Orthotic Semi-Flexion Knee Joint. Proceedings of the Indian National Conference on Applied Mechanics (INCAM-2015) held at IIT Delhi (13-15 July). ISBN 978-81-8487-509-6, pp. 535--540.
• Ganesh Bapat and S. Sujatha. An alternative to the locked knee joint for a KAFO. Proceedings of the ISPO World Congress 2015 held at Lyon, France (22-25 June), Volume-39 Issue-June 2015 P&O International Supplementary, pp. 515.
• D. S. Mohan Varma and S. Sujatha. Minimal kinematic model for inverse dynamic analysis of gait. Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition IMECE2014, November 14-20, 2014, Montreal, Quebec, Canada​.
• Vivek Sarda, Sujatha Srinivasan and Anil Prabhakar. Training and Mobility Device for Children with Cerebral Palsy. Proceedings of the 3rd International Conference in Biomedical Engineering and Assistive Technologies (BEATS-2014) held at Panjab University, Chandigarh, India in February 2014.
• Harshal Chaudhari, Sushant Veer and Sujatha Srinivasan. Design of a Standing Wheelchair, presented at the 14th International Society of Prosthetics and Orthotics World Congress held in Hyderabad, Feb 4-7, 2013. Presentation won the Yeongchi Wu International Education Award.
• Kumaraswamy Udugu, Sujatha Srinivasan and M.S. Shunmugam. Analysis of manufacturing tolerances on the performance of planar mechanisms - an approach using screw theory. Proceedings of the 4th International and 25th All India Manufacturing Technology, Design and Research Conference AIMTDR 2012 held in Jadavpur University, Kolkata, Dec 13-16, 2012.
• Mohan Damu and Sujatha Srinivasan, A dynamic model of gait using the roll-over shape for the ankle-foot system. Abstract accepted for presentation at the 18th Congress of the European Society of Biomechanics to be held in Lisbon, Portugal from July 1-4, 2012
• Pankajalakshmi Amirthakasi, Santi Sagar Jetti and Sujatha Srinivasan. Application of QFD to Mechanize the Manufacturing of the Jaipur Foot, Proceedings of the the 3rd International Conference on Research into Design held at Bangalore, India in January 2011.
• Mayank Pareek and Sujatha Srinivasan. Development of an innovative, cost-effective, adjustable Knee Ankle Foot Orthosis, Proceedings of the INAE-ISAAC National Conference on Alternative Communication and Assistive Technologies for Persons with Disabilities held at NITIE, Mumbai in March 2009.
• Vishnu Vardhan Reddy and Sujatha Srinivasan. Design and analysis of a knee mechanism for a Knee Ankle Foot Orthosis, Proceedings of the INAE-ISAAC National Conference on Alternative Communication and Assistive Technologies for Persons with Disabilities held at NITIE, Mumbai in March 2009.
• S. Srinivasan and E. R. Westervelt. An Analytically Tractable Model for a Complete Gait Cycle. XX Congress of the International Society of Biomechanics, August 2005. Proceedings of the XX Congress of the International Society of Biomechanics held at Cleveland, OH in August 2005.

Granted Patents

• Indian Patent No. 342114 (08th Jul 2013): Swimming Pool Lift for Physically Challenged (with Swostik Sourav Dash)
  
• Indian Patent No. 338006 (01st Dec 2014): A Prosthetic Knee for Uneven Terrain (with TS Anand)
  
• Indian Patent No. 332195 (15th June 2015): Flexlock for Tri-state KAFO (with Ganesh Bapat)
• Indian Design Patent no. 290751 (29 Dec 2017): Lever operated knee joint for orthosis and prosthesis (with Ganesh Bapat and Muthuvishvashwaran)
• Indian Design Patent no. 294291 (03 Jul 2017): Portable manual standing wheelchair (with Vivek Sarda and Swostik Dash)
• Indian Design Patent no. 290752 (07 Apr 2017): Lever operated knee joint for orthosis and prosthesis (with Ganesh Bapat and Muthuvishvashwaran)
• EP 1187583B1 (July 27, 2005): Prosthetic foot having shock absorption (with J. Doddroe, R. Arbogast, J. Colvin, J. Capper)
• US 6,863,695 (March 5, 2005): Prosthetic foot having shock absorption (with J. Doddroe, R. Arbogast, J. Colvin, J. Capper)
• EP 09555962B1 (September 22, 2004): Knee mechanism for an artificial limb (with J. E. Cooper, R. Arbogast, J. Kinsinger)
• US 6,602,295 (August 5, 2003): Prosthetic foot having shock absorption (with J. Doddroe, R. Arbogast, J. Colvin, J. Capper)
• US 6,290,730 (September 18, 2001): Artificial foot and ankle (with M. Pitkin, J. Hays, J. Colvin)
• US 5,800,567 (September 1, 1998): Knee mechanism for an artificial limb (with J. E. Cooper, R. Arbogast, J. Kinsinger)
• US 5,800,563 (September 1, 1998): Impact reducing prosthetic pylon (with R. Arbogast, E. Bartkus, J. Colvin)
• GB 2307415B (August 12, 1998): Knee joint mechanism for knee disarticulation prosthesis (with S. Kramer, V. Swanson)
• US 5,746,774 (May 5, 1998): Knee joint mechanism for knee disarticulation prosthesis (with S. Kramer, V. Swanson)

Patents Pending

• A Walk-Chair with natural sit to stand motion for children with disabilities, Indian Provisional Application no: 201941041488 filed 14th Oct 2019 (with Rahul Bhamare).
• Method and portable rehabilitation robot for providing therapy to human limb, Indian Patent Application no. 201941020733 filed 24th May 2019 (with Sandeep Guguloth and Sivakumar Balasubramanian (CMC Vellore)).
• An extended wheel chair with a wheel chair and an attachment device for the wheel chair, Indian patent application no. 201841027569 filed 12th June 2019 (with Swostik Sourav Dash and Vivek Sarda).
• Easy to Use Portable Manual Standing Wheelchair with Safety Features and for Outdoor Use, CHINA patent application no. 201880004763X from PCT/IN2018/050305 filed 31 May 2019 (with Vivek Sarda and Swostik Sourav Dash)
• Easy to Use Portable Manual Standing Wheelchair with Safety Features and for Outdoor Use, US patent application no. 16/337,756 filed 28 March 2019 (with Vivek Sarda and Swostik Sourav Dash)
• Methods and Apparatus for Measuring Spatiotemporal Parameters for Gait and Movement Analysis, Indian patent application no. 201841006227 filed 19th February 2018 (with Gunjanbhai Patel and Rajdeep Ojha).
• Supportive Walker with Integrated Seating Mechanism, Indian patent application no. 201741019287 filed 1st June 2017 (with Vivek Sarda and Swostik Sourav Dash).
• Easy to Use Portable Manual Standing Wheelchair with Safety Features and for Outdoor Use, Indian patent application no. 201741019125 filed 31 May 2017 (with Vivek Sarda and Swostik Sourav Dash)
• Attachment Mechanism to convert a Manual Wheelchair into a Tricycle or Motorized Wheelchair, Indian patent application no. 6952/CHE/2015 filed 18th December 2015 (with Swostik Sourav Dash and Vivek Sarda).
• Hybrid Manual-Electric Wheelchair, Indian patent application no.1067/CHE/2015 filed 5th March 2015 (with students Sripriya Kalidoss, Karthikeyan S D and Vivek Sarda (all DD, ME)).
• Body Movement Based Training and Mobility Device, Indian patent application no.5352/CHE/2013 filed 20th November 2013 (with student Vivek Sarda (DD,ME), Anil Prabhakar (EE), Namita Jacob (Chetana Charitable Trust), T A Simy (Vidya Sagar)).
• Semi-flexion Orthotic Knee, Indian patent application no. 3088/CHE/2013 filed 10th July 2013 (with students Rohith Mittapalli (DD, ME) and Sushant Veer (B.Tech, ME)).
• A Multi-position Wheelchair, Indian patent application no. 4806/CHE/2012 filed 19th November 2012 (with student Harshal Chaudhari (DD, ME)).
• Tactograph, Indian patent application no. 4091/CHE/2011 filed 28th November 2011 (with students Sushant Veer (B.Tech, ME), Rohith Mittapalli (Dual Degree(DD), ME), Vishwanath Saragadam (B.Tech, EE) and colleagues Anil Prabhakar (EE), Nitin Chandrachoodan (EE))