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Proceedings Papers

Kinematics of the Knee Joint in Deep Flexion: An X-Ray Study

Brian P. Kelly, Mohamed Samir Hefzy, Derek T. D. V. Cooke, Laurie A. Harrison
Proc. ASME. IMECE96, Advances in Bioengineering, 119-120, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-1143
https://doi.org/10.1115/IMECE1996-1143
View Paper titled, Kinematics of the Knee Joint in Deep Flexion: An X-Ray Study
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Topics: Kinematics, Knee, X-rays, Artificial joints, Design, Knee joint prostheses
Proceedings Papers

Three-Dimensional Dynamic Modeling of the Human Knee Joint: Formulation and Solution Technique

Mohamed Samir Hefzy, Eihab M. Abdel-Rahman
Proc. ASME. IMECE96, Dynamic Systems and Control, 909-916, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-0426
https://doi.org/10.1115/IMECE1996-0426
View Paper titled, Three-Dimensional Dynamic Modeling of the Human Knee Joint: Formulation and Solution Technique
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Topics: Dynamic modeling, Knee, Algebra, Algorithms, Complex systems, Differential algebraic equations, Dynamic models, Dynamic response, Stress
Proceedings Papers

Senior Design Projects to Aid the Disabled: The University of Toledo Experience

Mohamed Samir Hefzy, Steven Kramer, Nagi Naganathan, Gregory Nemunaitis
Proc. ASME. IMECE98, Advances in Bioengineering, 377-378, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0182
https://doi.org/10.1115/IMECE1998-0182
View Paper titled, Senior Design Projects to Aid the Disabled: The University of Toledo Experience
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Topics: Design, Education, Engineering students, Feedback, Manufacturing engineering, Students
Proceedings Papers

An Assistive Device to Aid the Visually Impaired to Play Basketball

Roberta Murnyack, Khristi Viktoriany, Ajmal Sediqe, Waiseng Chong, Mohamed Samir Hefzy
Proc. ASME. IMECE99, Advances in Bioengineering, 11-12, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0352
https://doi.org/10.1115/IMECE1999-0352
View Paper titled, An Assistive Device to Aid the Visually Impaired to Play Basketball
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Topics: Poles (Building), Sensors, Signals, Sports
Proceedings Papers

Senior Design Projects to Aid the Disabled at the University of Toledo: Community Outreach and Impact

Mohamed Samir Hefzy, Gregory Nemunaitis, Nagi Naganathan, Christine Smallman
Proc. ASME. IMECE99, Advances in Bioengineering, 267-268, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0480
https://doi.org/10.1115/IMECE1999-0480
View Paper titled, Senior Design Projects to Aid the Disabled at the University of Toledo: Community Outreach and Impact
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Topics: Design, Education, Engineering students, Feedback, Manufacturing engineering, Students
Proceedings Papers

Isometric Co-Contractions of the Quadriceps and Hamstrings in Intact and PCL-Deficient Knees

Hongzhi Yang, Yi-Chun Li, Mohamed Samir Hefzy
Proc. ASME. IMECE99, Advances in Bioengineering, 197-198, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0445
https://doi.org/10.1115/IMECE1999-0445
View Paper titled, Isometric Co-Contractions of the Quadriceps and Hamstrings in Intact and PCL-Deficient Knees
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Topics: Knee, Wounds, Muscle, Maintenance, Osteoarthritis, Stability, Surgery
Proceedings Papers

Three-Dimensional Dynamic Modeling of the Human Knee to Include Tibio-Femoral and Patello-Femoral Joints

Dumitru Caruntu, Mohamed Samir Hefzy
Proc. ASME. IMECE2001, Advances in Bioengineering, 93-94, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/BED-23046
https://doi.org/10.1115/IMECE2001/BED-23046
View Paper titled, Three-Dimensional Dynamic Modeling of the Human Knee to Include Tibio-Femoral and Patello-Femoral Joints
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Topics: Dynamic modeling, Knee, Dynamic models, Stress
Proceedings Papers

Relationship Between the Frictional Shear Stresses and the Normal Pressure on the Buttocks While Lying on a Spine Board

Vinay Kumar Pallerla, Mohamed Samir Hefzy
Proc. ASME. IMECE2019, Volume 3: Biomedical and Biotechnology Engineering, V003T04A056, November 11–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2019-11814
https://doi.org/10.1115/IMECE2019-11814
View Paper titled, Relationship Between the Frictional Shear Stresses and the Normal Pressure on the Buttocks While Lying on a Spine Board
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Topics: Pressure, Shear stress, Skin, Bone, Cushioning materials, Finite element analysis, Lumber, Muscle, Body systems and structures, Computer software
Proceedings Papers

On the Advantages of Superelastic NiTi in Ankle Foot Orthoses

Amirhesam Amerinatanzi, Hashem Zamanian, Narges Shayesteh Moghaddam, Hamdy Ibrahim, Mohamed Samir Hefzy, Mohammad Elahinia
Proc. ASME. SMASIS2016, Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting, V002T03A026, September 28–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2016-9267
https://doi.org/10.1115/SMASIS2016-9267
View Paper titled, On the Advantages of Superelastic NiTi in Ankle Foot Orthoses
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Topics: Nickel titanium alloys, Orthotics, Springs, Stainless steel, Finite element model, Hinges, Shapes, Wire, Boundary-value problems, Bracing (Construction)
Journal Articles

A Biologically Inspired Knee Actuator for a KAFO

Feng Tian, Mohamed Samir Hefzy, Mohammad Elahinia
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Design Innovation Paper
J. Med. Devices. December 2016, 10(4): 045001.
Paper No: MED-15-1258
https://doi.org/10.1115/1.4033009
Published Online: August 11, 2016
View Article titled, A Biologically Inspired Knee Actuator for a KAFO
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Topics: Actuators, Knee, Cycles, Nickel titanium alloys
Proceedings Papers

Development of a Dynamic Knee Actuator for a KAFO Using Superelastic Alloys

Feng Tian, Mohamed Samir Hefzy, Mohammad Elahinia
Proc. ASME. IMECE2014, Volume 3: Biomedical and Biotechnology Engineering, V003T03A065, November 14–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2014-40431
https://doi.org/10.1115/IMECE2014-40431
View Paper titled, Development of a Dynamic Knee Actuator for a KAFO Using Superelastic Alloys
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Topics: Actuators, Alloys, Knee, Cycles, Additive manufacturing, Computer simulation, Conceptual design, Engineering prototypes, Orthotics, Rotation
Proceedings Papers

Design and Evaluation of a Knee Actuator for a Dynamic Knee-Ankle-Foot Orthosis

Feng Tian, Mohammad Elahinia, Mohamed Samir Hefzy
Proc. ASME. SMASIS2014, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T06A013, September 8–10, 2014
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2014-7605
https://doi.org/10.1115/SMASIS2014-7605
View Paper titled, Design and Evaluation of a Knee Actuator for a Dynamic Knee-Ankle-Foot Orthosis
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Topics: Actuators, Design, Knee, Orthotics, Cycles, Stiffness, Springs, Alloys, Computer simulation, Conceptual design
Proceedings Papers

Development of a Dynamic Knee Simulator

Andrew Dauster, Mohamed Samir Hefzy, Ethan Hauser, Philip Nowicki
Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 583-584, June 25–29, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SBC2008-193033
https://doi.org/10.1115/SBC2008-193033
View Paper titled, Development of a Dynamic Knee Simulator
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Topics: Knee, Muscle, Chain, Simulation
Proceedings Papers

Does Lift-Off Occur During Deep Squat?

Ali Abbasi, Mohamed Samir Hefzy
Proc. ASME. SBC2007, ASME 2007 Summer Bioengineering Conference, 637-638, June 20–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: SBC2007-176077
https://doi.org/10.1115/SBC2007-176077
View Paper titled, Does Lift-Off Occur During Deep Squat?
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Topics: Kinematics, Knee, Prostheses
Proceedings Papers

Developing an Active Ankle Foot Orthosis Based on Shape Memory Alloy Actuators

Ehsan Tarkesh, Mohammad H. Elahinia, Mohamed Samir Hefzy
Proc. ASME. SBC2007, ASME 2007 Summer Bioengineering Conference, 769-770, June 20–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: SBC2007-176911
https://doi.org/10.1115/SBC2007-176911
View Paper titled, Developing an Active Ankle Foot Orthosis Based on Shape Memory Alloy Actuators
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Topics: Actuators, Orthotics, Shape memory alloys, Muscle, Drag (Fluid dynamics)
Proceedings Papers

A Dynamic Knee-Ankle-Foot Orthosis With Superelastic Actuators

Feng Tian, Mohammad Elahinia, Mohamed Samir Hefzy
Proc. ASME. SMASIS2013, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T06A005, September 16–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2013-3044
https://doi.org/10.1115/SMASIS2013-3044
View Paper titled, A Dynamic Knee-Ankle-Foot Orthosis With Superelastic Actuators
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Topics: Actuators, Knee, Orthotics, Cycles, Stiffness, Conceptual design, Locks (Waterways), Shapes, Springs, Arches
Proceedings Papers

Determination of the Contact Areas in the Patello-Femoral and Tibio-Femoral Joints During Deep Knee Flexion

Ethan W. Hauser, Mohamed Samir Hefzy, Brian Blessinger
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 643-644, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-206703
https://doi.org/10.1115/SBC2009-206703
View Paper titled, Determination of the Contact Areas in the Patello-Femoral and Tibio-Femoral Joints During Deep Knee Flexion
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Topics: Knee, Stress, Cartilage, Computers, Experimental methods, Kinematics
Proceedings Papers

Emergency Medical Services Backboard With a Pressure Dispersion Liner

Matthew R. Henschen, Adam L. Koesters, Jonathan Harvey, Gregory Nemunaitis, Mehdi Pourazady, Mohamed Samir Hefzy
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 887-888, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-206399
https://doi.org/10.1115/SBC2009-206399
View Paper titled, Emergency Medical Services Backboard With a Pressure Dispersion Liner
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Topics: Biomedicine, Emergencies, Pressure, Biological tissues, Blood flow, Skin, Damage, High pressure (Physics), Lumber, Nervous system
Proceedings Papers

2011 Results From the Summit on Rehabilitation Engineering

Rita M. Patterson, Mohamed Samir Hefzy, Jerry Weisman
Proc. ASME. SBC2012, ASME 2012 Summer Bioengineering Conference, Parts A and B, 1233-1234, June 20–23, 2012
Publisher: American Society of Mechanical Engineers
Paper No: SBC2012-80006
https://doi.org/10.1115/SBC2012-80006
View Paper titled, 2011 Results From the Summit on Rehabilitation Engineering
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Topics: Biomedicine, Computers, NASA
Proceedings Papers

Gurney Mattress Redesign

Timothy Brakefield, Thomas Burkhardt, Andrew Meehan, Gregory Nemunaitis, Mohamed Samir Hefzy, Mehdi Pourazady
Proc. ASME. SBC2012, ASME 2012 Summer Bioengineering Conference, Parts A and B, 1235-1236, June 20–23, 2012
Publisher: American Society of Mechanical Engineers
Paper No: SBC2012-80036
https://doi.org/10.1115/SBC2012-80036
View Paper titled, Gurney Mattress Redesign
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Topics: Biological tissues, Muscle, Pressure, Skin, Spinal cord, Stress, Wounds