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Design BA CL
 

Design BA CL

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    Design BA CL Design BA CL Presentation Transcript

    • INSTITUTO POLITECNICO NACIONALEscuela Superior de Ingeniería Mecánica y Eléctrica, Unidad Azcapotzalco
      DESIGN OF A MOTION ASSISTIVE ORTHOSIS
      Directors:
      Dr. Ricardo Gustavo Rodríguez Cañizo
      Dr. Emmanuel Alejandro Merchán Cruz
      Students:
      Bautista Arteaga Aldo
      Castro Lara Ignacio
    • REQUIREMENTS
    • ECONOMIC REQUIREMENTS
      LOW ACQUISTION COST
      LOW MAINTENANCE COST
    • FUNCTIONAL REQUIREMENTS
      Lightweight
      Ergonomic
      Comfortable
      Anthropometric
      Lownoiseemission
      Easytouse
      Lowvibrationlevel
    • FUNCTIONAL REQUIREMENTS
      Appropriatetemperaturelevels
      Reducedvolume
      Safe
      Avoid injuries from continuous use
      Prevent further damage by accident
      Safe in prolonged use and risky situations
      Adaptable to different use conditions
    • FUNCTIONAL REQUIREMENTS
      Havesufficientautonomy
      Adaptable a differentworkingconditions
      Have the necessary freedom degrees
      Sufficient range of knee flexion
      Stablewith heavy weights
      Appropriateresolution
      Compatible with other biomechanical systems
      Adaptable to different motion types.
    • APPEARANCE REQUIREMENTS
      Anthropomorphicappearance.
      Discreetappearance.
    • MANUFACTURABILITY AND INSTALLATION REQUIREMENTS
      Easy installation and removal for the patient.
      Easy to manufacture.
    • CONSERVATION REQUIREMENTS
      Lowfrequencymaintenanceand revisions
    • DESIRABLE REQUIREMENTS
      Lowacquisitioncost
      Lowmaintenancecost
      Prevent further damage by accident
      Compatible with other biomechanical systems
      Anthropomorphicappearance.
      Discreetappearance
    • DESIGN GOALS
    • DESIGN GOALS
      Acquisition cost under 40 000 pesos
      Maintenance every 4 months
      Equipment weight under 12 kg
      Adaptable to user characteristics
      Noise Emission under 30 db
      Interpres intentions of movement and have a simple user interface
      The frequencies generated by the system, must not come into resonance with the tissue or bone
    • DESIGN GOALS
      System temperature must be under 28 ° C
      The diameter of the limb can´t be increased in more than 15 cm
      Tested for periods longer than the intervals between revisions, under strict conditions of use
      Operate under different conditions of temperature and humidity
      Work at least 6 hours by continuous use
      Adaptable to different working conditions as variable inclinations and different soil conditions
      Have at least 3 freedom degrees
    • DESIGN GOALS
      Range of flexion of least 80 ° at the knee
      Support users with weights up to 120 kg
      Resolution of 1°
      Compatible with other biomechanical ankle systems
      The installation and removal by the patient must not take more than 10 minutes
      Manufacture must take 20 days or less
    • CONCEPT GENERATION
    • A)-FRAMES
      (A1) Rigidframe(wothoutlengthregulation.) 
      Adjustablelengthframes .(A2)-Multipointslidingsystem (withspring).(A3)-slidingsystemwithscrewfix.(A4)-cylindersystemwithsplit ring.(A5)-slidingsystemwith slots.
      Dynamiclengthframes(A6)-Pneumaticpistonsystem.(A7)-Hydraulicpistonsystem.(A8)-Electric linear actuatorsystem.(A9)-Magnetorheological fluid dampersystem.
    • (B)-RESTRAINT AND ADJUSTMENT SYSTEMS
      (B1) Velcro tapes
      Adjustablestraps +(B2)-MicroLocksystem.(B3)-Bucklelocksystem.(B4)-Buckle-claspsystem.(B5)-Micrometricpressurebuckle.
      (B6) Rigidsystemwithhinge and lock.
    • (C)-MOVEMENT GENERATION SYSTEMS
      (C1) Rotativeelectric motors.(C2) Linear electric motors.(C3) Servo Rotative motors(C4) Servo linear motors(C5) Rotativehydraulic motors.(C6) Hydraulic linear actuators.
    • (D)-CONTROL SYSTEMS
      (D1) Microprocessors.
      (D2) Microcontrollers.
      (D3) PLC's.
    • (E) ENERGY STORAGE SYSTEMS.
      (E1) Lead-acidaccumulators.
      (E2) AlkalineBatteries.
      (E3) MagnesiumAlkalineBatteries.
      (E4) Nickel-CadmiumBatteries.
      (E5) Nickel-Metal HydrideBatteries.
      (E6) LithiumIon Batteries.
      (E7) LithiumPolymerBatteries.
      (E8) Fuel Cells (Hydrogen).
    • (F)-SENSING SYSTEMS
      (F1) Pressuresensors.(F2) Angular Position Sensors.(F3) InductiveSensors.(F4) Proximitysensors.(F5) Temperaturesensors.(F6) Humiditysensors.(F7) Potentiometers.(F8) Accelerometers.(F9) Encoders.(F10) Resolvers.(F11) Gyroscopes.
    • (G)-USER INTERFACE
      Forintroduction of commands and information.(G1)-Keyboard.(G2)-Voicerecognitionsystem.(G3)-Touchscreendisplay
      Forfeedbacktotheuser.(G4)-LCD(G5)-Led 's(G6)-Buzzer(G7)-Speaker forvoicemessages.
    • (H)-KNEE JOINT SYSTEMS
      (H1) Single axisarticulation.(H2) Dual Axis Articulation (polycentric, two rotation axes)(H3) Knee Joint with wedge and rope lock
    • CONCEPT GENERATION
    • EvaluationbyFeasibility
    • EvaluationbyAvailabilityof technology
    • Customer requirements based evaluation
    • Decision-matrixbasedevaluation