Bids Are Invited For Caplex Ankle–Foot Prosthesis Emulator System

Caplex Ankle–Foot Prosthesis Emulator System . Background:Notice Is Hereby Given By The University Of Ottawa Of The Intent To Enter Into A Contract With Human Motion Technologies Llc (&Ldquo;Humotech&Rdquo;) To Procure The Following:One Modular Ankle&Ndash;Foot Prosthesis Tethered To An External Actuation And Control Unit With External Power Supplies, With One Degree Of Freedom (Plantarflexion/Dorsiflexion) And Adjustable Foot Length, Heel Stiffness, And Worn Weight;One External Actuator Unit Delivering Mechanical Power To The Prosthesis Via A Bowden Cable;One Control Unit Including Host Computer With Software To Interface With The Actuator Unit And Ankle-Foot Prosthesis; Andhardware Accessories Including Cables, Two Lift Shoes Enabling Use Of The Prosthesis By Able-Bodied Individuals, And Three Sizes Of Simulator Boot Attachments.These Components Will Be Installed Into The Assistive-Device Biocompatibility Lab At The University Of Ottawa (200 Lees Avenue, Room Mr22).Intended Use:The Components Described Herein Will Be Installed Into The Assistive-Device Biocompatibility Lab At The University Of Ottawa. Together, They Must Comprise A Complete System That Enables The Real-Time Control Of A Lightweight Ankle&Ndash;Foot Prosthesis During Walking On A Treadmill, Capable Of Being Used By Individuals With Amputation As Well As Able-Bodied Individuals. The Prosthesis Emulator System Will Be Capable Of Replicating The Dynamic Effect Of A Wide Range Of Ankle&Ndash;Foot Prosthesis Designs, Enabling Detailed Studies Of Device-Assisted Gait Across Many Conditions. The System&Rsquo;S Controllers Will Be Modifiable In Real Time, Enabling Studies On How The Wearer&Rsquo;S Walking Kinematics (E.G., Joint Angles) And Kinetics (E.G., Joint Torques) Change In Response To Different Prosthesis Control Strategies, As Well As Studies That Evaluate Prostheses That Already Exist (Whether As Commercial Products Or As Prototypes) Without Donning And Doffing Each Device During An Experiment. The System Consists Of (I) One Ankle&Ndash;Foot Prosthesis, (Ii) One External Control Unit, (Iii) One Host Computer, And Their Components And Accessories:(I) One Ankle&Ndash;Foot Prosthesis With The Following Specifications:Dimensions: Total Length 27.4 Cm, Width 8.10 Cm, And Height 23.3 Cmmass: Total Worn Mass Of Less Than 1.10 Kgmechanical System:One Degree Of Freedom Enabling Plantarflexion/Dorsiflexion Of Forefoot Relative To Hindfoot, With Range Of Motion From More Than 41&Deg; Plantarflexion To More Than 21.7&Deg; Dorsiflexionforefoot Actuated By Bowden Cable Tethered To External Control Unit, With Maximum Plantarflexion Torque Of At Least 182 N&Middot;Mpassive Heel Stiffness Adjustable Between Less Than 55 N/Mm And More Than 115 N/Mmsensors:Optical Encoder Measuring Forefoot Angle With At Least 5,000 Counts Per Revolutioninline Load Cell Measuring Forefoot Torque Applied, Accurate To Within &Plusmn; 1% Or Better(Ii) One External Control Unit With The Following Specifications:Housed In An Enclosure That Is Not Worn (I.E., External To The Worn Prosthesis)Uses A 3-Phase Power Supply Between 208 Vac And 480 Vacmechanical Power Is Generated By A Motor With Maximum Speed Of At Least 2,420 Rpm And Maximum Torque Of At Least 125 N&Middot;Mmechanical Power Is Delivered To The Worn Prosthesis Via A Bowden Cable With Maximum Cable Speed Of At Least 4.83 M/S And Maximum Cable Force Of At Least 6.58 Knconfigurable And Programmable Via Software Interface On A Host Computer(Iii) One Host Computer With Software That Interfaces With The External Control Unit, Enabling Real-Time Adjustment Of Controller Parameters.Functionality:The Equipment Must Conform To The Following Minimum Requirements:Ankle&Ndash;Foot Prosthesis:Total Worn Mass Must Be No Greater Than 1.1 Kgworn Device Must Accommodate A Wide Range Of Shoe Sizesdevice Must Be Accompanied With Accessories Enabling Use By Able-Bodied Participants (E.G., A Lift Shoe That Can Be Worn On The Contralateral Foot When The Prosthesis Is Worn On An Intact Limb)Forefoot Must Have A Range Of Motion Of At Least 41&Deg; Plantarflexion And 21.7&Deg; Dorsiflexionforefoot Angle Must Be Measured And Recorded To Within 0.1&Deg;Maximum Plantarflexion Torque Must Be At Least 182 N&Middot;Mplantarflexion Torque Must Be Measured And Recorded To Within &Plusmn; 1%External Control Unit:Must Be External To The Prosthesis (I.E., Not Integrated Into The Worn Components)Must Use 3-Phase Power At 480 Vacmust Deliver Power To The Worn Prosthesis Via A Mechanical Tether (E.G., A Bowden Cable)Must Be Capable Of Delivering Sufficient Mechanical Power To Accommodate Subjects Of Up To 113 Kg Body Mass Or Greater Walking At Up To 1.8 M/S Or Fastermust Be Able To Adjust Controller Parameters In Real Time Via A Graphical User Interface On A Host Computerequipment Must Be Csa Compliant