Winter Quarter 2018

          
Perspectives in Assistive Technology
ENGR110/210

          

David L. Jaffe, MS
Thornton Center Classroom 110
Tuesdays & Thursdays from 4:30pm to 5:50pm

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Candidate Team Projects - 2018

Team Projects are for suitable for teams of students (typically 3) taking the course for three credit units.

These projects will be "pitched" in class on Thursday, January 11th

Project contacts are listed on the handout distributed on the first day of class.

"Recommended Skillset" is dependent on the selected design concept.


Team Project Titles: (year originally suggested)


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Prosthetics / Orthotics Projects:

Lighter Leg Braces

photo of Peter's brace

Background: This project focuses on people like Peter, the project suggestor, who wears leg braces to prevent knee buckling and subsequent falling.

Problem: Peter reports that his first braces were light but didn't stay in place. His present braces have a component that fits under his heels that solved the slipping problem, but they are heavier, resulting in slower ambulation.

Aim: Explore designs for improved braces that makes walking safer and less tiring.

Design Criteria:

  • Lighter than existing braces
  • Functional knee locking feature
  • Safe to use

Other:

  • Students must perform a mechanical analysis to determine brace forces and address challenges of structure, stability, and weight perception.
  • All fitting and testing must be done under the supervision of Gary Berke, a Stanford orthotist / prosthetist.

Recommended Skillset: Mechanical Engineering

Links:

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Hybrid Body-Powered Harness Project

Background:

Problem: A traditional body-powered prosthetic device employs a cable system that runs from the prosthetic hand across the back to the opposite shoulder. The prosthetic hand is powered by either flexion of the shoulder or by flexion abduction of the scapulae. An upper body amputee who wears a body-powered prosthesis must make abnormal movements operate the prosthetic hand. These movements may bring unwanted attention to the wearer and may also compromise the action and range of action of the prosthesis. Additionally, persons with severe scar tissue or the inability to generate sufficient force may not be able to operate a body-powered prosthesis. In addition, body-powered systems are generally less cosmetically pleasing than passive or myoelectric models.

Aim: Explore alternative ways of controlling the prosthetic device, perhaps using electronic sensors and electromechanical systems.

Design Criteria:

Other:

Recommended Skillset: Mechanical Engineering, Shop

Links:


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Grip Sense Project

Background:

Problem: Users of upper limb electro-mechanical hand prostheses do not have an easy way of determining the grip strength that their device is producing. Too little grip may result in the grasped object slipping out of their hand, while too much strength may damage or crush the object.

Aim: Explore designs for a simple sensor system that will inform the user of the grip strength being produced by his/her prosthetic device. The sensing modality must be something other than vibration.

Design Criteria:

Other:

Recommended Skillset: Mechanical Engineering, Shop

Links:


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Projects with Abby

Photo of Abby and Nathan

Background: Abby is an artist, a retired art teacher (grades K-College), a psychiatric social worker, and a computer graphic designer. She is an individual with multiple disabilities: a mobility challenge, a bipolar disorder, and a visual impairment. She is passionate about making a difference and advocating for individual rights. She has been a chair of the Consumer Advisory Council and formerly represented consumers on the Board of Directors of NAMI (National Alliance on Mental Illness) in Santa Clara County and has volunteered in their Connection Recovery Support Group and the Peer PAL Program. She has also volunteered for the Vista Center for the Blind and Visually Impaired, has been on the Board of Directors of the Silicon Valley Independent Living Center (SVILC), has successfully been involved in litigation to preserve the rights of service dog recipients when they are hospitalized, and has presented Poster Sessions and spoken at conferences including NAMI's National Convention, California ADA (Americans with Disabilities Act) 2015 Conference celebrating 25 years and the California Council of the Blind's Annual Convention. Abby has recently acquired a new service dog, Nathan, from Canine Partners for Life (CPL) in Cochranville, PA. She has also joined their Advisory Council.

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Projects for Abby's Wheelchair

1. Personalization Project

Background: "I am delighted to have mobility devices that include the WHILL Model M Electric Vehicle, and my service dog Nathan from Canine Partners for Life. Although the wheelchair is quite modern in design, I am an active senior, participating in numerous organizations both for personal and professional reasons, as well as recreational activities. It would be great to have some ways to personalize both the chair and my dog to reflect these various ways to be in the world."

Problem: Individuals, such as Abby, who use wheelchairs, scooters, or walkers have little opportunity to extend their personal sense of fashion and aesthetics to these devices. This is exacerbated by the fact that the equipment covered by health insurance or Medicare is often the most "basic" version with a plain design. Whereas one's choice of clothes, shoes, accessories, and jewelry are made on a daily basis, users of these devices have to "wear" the same equipment everyday and for every occasion.

Aim: Explore ways to add a personal aesthetic to Abby's Whill wheelchair.

2. Enhanced Visibility Project

Background: "The WHILL does have some rear lights, but no real way to illuminate my path for early morning or late afternoon activities such as walking my dog or going out at night. This is a real problem when you consider where there are van accessible parking spaces and locations of activities. A movie and restaurant outing with may include parking one place, and meeting friends in a location a block or so away. Lighting is not always available in parking lots, and many time parking lots are located in back of buildings. Adequate lighting means the difference between safe maneuvering both me and my dog wherever I want to go."

Problem: Abby's new wheelchair has limited lighting which creates a safety hazard while walking Nathan in the early morning or traveling at night.

Aim: Explore ways to enhance the night time visibility of Abby's wheelchair.

3. Storage Project

Problem: Abby's new wheelchair has no provision for storing personal items or transporting groceries.

Aim: Explore ways to add a personal secure storage space and facilitate grocery transportation and handling.

Other: Photos

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Projects for Abby's Service Dog, Nathan

1. Simultaneous Operation Project

Background: "Canine Partners for Life has made some modifications with flexi leashes for powerchair users. The design of the WHILL does not lend itself to this kind of modification. Operating the WHILL while controlling a dog with a leash is a real challenge. The leash has to be able to go on either side, or in front and back of the chair, while at the same time be short enough to not get caught in the front wheels, or the arm rests. I was recently at IKEA, and the leash I was using got twisted around one of the front wheels under the wheel cover. This is a dangerous situation for me as well as my dog. As my service dog is with me wherever I go, this presents a continual problem in our lives."

Problem: Wheelchair and scooter users like Abby can have a difficult time simultaneously operating their mobility device and controlling their service animal.

Aim: Explore ways to make it easier for Abby to operate her wheelchair and control Nathan.

2. Harness Project

Background: "Nathan’s harness has three clasps to attach fuzzies uner his belly, and both front legs. This means daily opening and closing these while I am putting on and taking off the harness each day. With hand difficulties the pinching of the clasps is extremely difficult."

Problem: Individuals like Abby who do not have a strong grip may experience difficulties with buckling and unbuckling their service animal's harness, especially while seated in their mobility device.

Aim: Explore ways to make it easier for Abby to put on and take off Nathan's harness.

Other: Photos

Overall Design Criteria:

  • The design should not alter or permanently deface or damage the physical structure of the wheelchair.
  • The customization should be able to easily be installed, removed, changed, cleaned, and washed by the user.
  • The design should work on a number of popular / standard scooters covered by insurance and Medicare.
  • Consider different user personas and aesthetics (e.g. refined / elegant, modern / contemporary, smart / sporty, premium / luxury, male / female, as well as the age of user, etc).
  • Consider fabrics, metal finishes, colors, patterns, lights, textures, and text elements.
  • Consider a variety of usage occasions (e.g. in-home, outdoors, party, tailgater, etc).
  • The design should be inexpensive and easy to fabricate.
  • Consider designs that would enhance wheelchair visibility at night, especially when crossing streets.

Recommended Skillset: Mechanical Engineering

Links:


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Projects with June:

Clean House Project

Background: June is an older adult who uses a rollator for balance and stability when moving around her San Francisco home.

Problem: June's use of her rollator makes it difficult for her to perform home cleaning tasks independently.

Aim: Explore designs to provide a safe, effective, and independent means of performing common household cleaning tasks.

Design Criteria: The solution must be safe to use, easy to operate, and be compact to store.

Other: Visits to June's home in San Francisco will be required.

Recommended Skillset: Mechanical Engineering

Links:


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Within Reach Project

Background: June is an older adult who increasingly finds that items in her upper kitchen and closet shelves are now out of her reach.

Problem: Currently available step stool solutions do not meet her needs: some are too tall, others have a stepping area that is too small, and most do not have hand-holds to provide needed balance and stability during reaching. Finally many step stools are heavy and bulky, making them difficult to move and position.

Aim: Explore designs to provide a safe and stable means of accessing items on upper shelves.

Design Criteria: The solution must be easy to move and position, offer a sense of security during use; have a wide, non-slip surface; provide the proper height advantage; and be collapsible for storage.

Other: Visits to June's home in San Francisco will be required.

Links:


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Projects with Tony:

Pack Rat

Background: Like everyone else, wheelchair users have a variety of items with them as they travel from place to place. But, unlike everyone else, wheelchair users can not make use of shoulder-worn backpacks.

Problem: Existing wheelchair storage products exhibit problems related to security, access, and size.

Aim: Explore designs for a manual wheelchair storage system that addresses shortcomings of existing products.

Design Criteria:

    The storage system design should be:
  • secure - protect items from theft (high priority)
  • safe - not expose the user to a risk of harm
  • stable - no adverse affect on the wheelchair's balance
  • accessible - easy to store and retrieve items
  • narrow - no increase in the wheelchair's width profile
  • large enough to carry a laptop
  • compatible or adaptable to a variety of manual wheelchairs
  • removable - to facilitate wheelchair transfers
  • composed of low cost materials
  • easy to fabricate
  • durable
  • easy to install, remove, cleaned, and washed by the user
  • waterproof
  • incorporate a lap tray (low priority)

Other: The design should not alter or permanently deface or damage the physical structure of the wheelchair.

Recommended Skillsets: Sewing

Links:


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Wheelchair Camber Project

Background: Wheelchair camber is the slight sideways inclination of the large rear wheels of a manual wheelchair from vertical. While positive camber improves a wheelchair's stability, it also increases its overall width profile.

Problem: The narrowest profile manual wheelchair configuration - in which the wheels are vertical (zero camber) - are favored when negotiating doorways that are less than 30 inches wide. Furniture placement can also present indoor obstacles to wider wheelchairs. However, when traveling outdoors, having the wheelchair wheels flared out (positive camber) improves stability and prevents tipping over on uneven ground, dirt trails, curb cuts, and cracked sidewalks.

Manual wheelchairs are sold with a non-adjustable fixed axle and camber setting which provides a compromised ability to handle both outdoor stability and indoor access and maneuverability.

Aim: Explore mechanical solutions to add camber adjustability to a manual wheelchair to improve performance both indoors and outdoors.

Design Criteria:

  • Camber settings should range from 0 to 6 degrees for each wheel
  • Camber adjustability can be either continuous or in 1 degree increments
  • Camber adjustments should be made by the user without tools while seated in the wheelchair
  • The design should be lightweight and simple
  • The design should not require drilling into the wheelchair or welding to the original frame
  • The design must not increase the zero camber wheelchair width

Other: Users of Quickie Model GPV wheelchairs can add washers to its wheel mounting system to effectively change the camber. But this process cannot be accomplished while the user is seated in the wheelchair.

Recommended Skillset: Mechanical Engineering, Shop

Links:


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Fernanda's Wheelchair Work Tray

Background:

Problem: Users of power wheelchairs sit taller than able-bodied people in a standard chair. As a consequence, they have difficulty approaching and using standard height work surfaces such as tables, desks, and counters.

Aim: Explore designs for a wheelchair work tray useful for a variety of activities in a variety of locations:

  • using a laptop computer
  • writing
  • preparing food in the kitchen
  • attending a lecture at Stanford
  • commuting on a bus or train
  • visiting a park
  • relaxing at the pool
  • enjoying coffee at a cafe
  • eating at a restaurant

Design Criteria:

  • include organizational placement for items such as writing instruments, cellphone, coffee cup
  • dissipate heat generated by a laptop
  • portable / foldable to fit in a tote bag
  • prototype must reflect Fernanda's personal aesthetic

Other:

Recommended Skillset: Mechanical Engineering, Shop

Links:


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Magical Bridge Playground Projects

Background: The Magical Bridge Playground is the nation's first fully accessible and socially inclusive playground. It is a public space where children with disabilities as well as children of parents who have a disability can play together. The City of Palo Alto designated 1.3 acres of underutilized public land in Mitchell Park, located at 600 East Meadow Drive in Palo Alto, for the site of the Magical Bridge Playground - adjacent to Abilities United and close to the new Mitchell Park Library.

The playground opened in April 2015 and has been overwhelmingly popular with both kids and parents, with some families traveling long distances to experience it.

After the Playground was completed, the Magical Bridge Foundation was created to assist other communities in building their own innovative and inclusive playgrounds. Construction on a Playground in Redwood City begain in the Fall of 2017, and funds are currently being raised for Magical Bridge Playgrounds in Sunnyvale and Morgan Hill.

Problem: The park's play equipment has been well-received, but some aspects of the play areas could be modified for better access. In addition, suggestions for replacement play areas are sought to update the park with fresh attractions every few years. And as new Playgrounds are constructed, there will be ongoing opportunities to design new features and refine existing designs to be accessible to everyone regardless of their abilities.

Aim: Explore designs to improve access to and navigation around the playground, as well as to create new play and educational experiences incorporating multiple senses, actions, and outcomes for all playground users and visitors, especially those with visual impairments and diminished fine motor skills.

Design Criteria:

  • Designs should be durable, fun, and safe for everyone - accommodating children and parents with disabilities - and be magical.
  • Project prototypes could be scale models to facilitate their construction and transportation.
  • Designs that incorporate electronics should be low-voltage or solar-powered.

Other Information:

  • Nikki is a local high school student who is visually impaired (VI). He has been prototyping and testing playground features to improve VI accessibility for Magical Bridge Playgrounds and will be available to provide information and feedback for VI-related student projects.

Recommended Skillset: Mechanical Engineering, Mechatronics, depends on selected design concept

Links:


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At Home Door Monitor

Background: People who are at high risk from certain medical conditions or are older adults living alone would benefit from a monitoring system that understands when their home activity is not normal (examples include having fallen, staying in bed sick, or worsening medical condition) so a caregiver could be called to offer assistance.

Problem: While there are many possible forms of remote monitoring, including video cameras, wearables, Personal Emergency Response Systems (PERS), scheduled phone calls, most older adults don’t want to be constantly watched by a camera, forget to put on or charge wearable devices, dislike PERS buttons because others consider someone who wears one to be ‘old and sick’, and phone calls require participation by another person.

Aim: Explore solutions that detect whether the monitored user is at home or not.

Design Criteria:

  • Detects when user has left or arrives home (two separate events), uses LED indicators
  • Does not require the user to carry or wear a device
  • Integrates into the home: small visual footprint, battery-powered, minimum installation and removal effort and impact

Design Criteria for a Commercial Product:

  • Minimum power consumption: need to be recharged infrequently or uses long-life batteries
  • Implements a standard wireless protocol like Z-Wave, LoRa, or BluetoothLE to communicate with an in-home control unit and existing sensor network.
  • Data transfer using cellular 3G
  • Be affordable, around $50
  • Be physically small as to become visually unobtrusive
  • Be able to be installed by a non-technical person such as a home healthcare aide
  • Installation does not require screws or nails, or cause damage to home

Other:

Recommended Skillset: Sensors, electronics, mechatronics

Links:


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Elbow Lifter

Background: Angie is an undergraduate Stanford student studying English with Spinal Muscular Atrophy (SMA) who uses a powered wheelchair to get around campus.

Problem: Angie requires assistance to move her arm from her wheelchair to the table before she is able to feed herself independently.

Aim: Explore device designs that would enable Angie to feed herself completely independently.

Design Criteria:

  • Angie must be able to initiate operation of the device.
  • Installation of the device must not damage or deface her wheelchair.

Other:

Recommended Skillset: Mechanical Engineering

Links:


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Creative Expression Project for Danny

Background: Danny has cerebral palsy and a cortical vision impairment. He uses a manual wheelchair to get around. Most everyone, including Danny, has a desire to be creative through activities such as writing, painting, sculpture, pottery, jewelry, quilting, photography, singing, dancing, and music.

Problem: Existing tools supporting creativity are often lacking for people with disabilities. Movement difficulties and limitations in vision may prevent individuals like Danny from fully participating in their chosen activity.

Aim: Explore ways to enhance creative expression for Danny. This could include the creation of new activities or fabrication of new tools.

Suggestions:

  • Convert the user's existing assistive technology device into a creative "paintbrush" or "musical instrument"
  • Use non-traditional inputs such as residual movements or brain waves
  • Adapt or create instruments for musicians with disabilities
    One-Handed Musical Instrument (OHMI) Competition

Other:

Recommended Skillset: Various, depends on chosen solution

Links:


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New Project title

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Get a Grip Project

Background: A handbike is a hand pedaled bicycle designed for people without the ability to pedal with their legs. The Freedom Ryder is the first high performance hand-powered bicycle. Users of this recreation and racing product have set distance, speed, and time records. The model FRH-1Q350X optionally features a forearm actuated brake or the James Watson Quadgrips, a "forearm actuated brake lever" that operate without the need to grip or squeeze a control.

Problem: Although some veterans with spinal cord injuries may be able move their arms, they may not have the ability to form a strong grip, preventing them from efficiently "pedaling" their handbikes.

Aim: Explore designs that would enhance a handbike user's with quadriplegia ability to pedal the Freedom Ryder.

Design Criteria:

  • the design could be a replacement hand grip assembly or an accessory that fits over the current handgrip
  • no structural modifications to the handbike
  • no drilling into the frame
  • optionally fits multiple handbike models

Other:

Recommended Skills: Mechanical Engineering, Shop

Links:


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Authoring Grade School Lessons on Disability and/or Assistive Technology

Background: Nearpod is a company who works in the educational sector. Their mobile learning platform helps teachers deliver classroom instruction using iPads and other mobile devices. It combines interactive presentation, collaboration, and real-time assessment tools into one integrated solution.

Problem: Although thousands of lessons have been authored, teachers currently don't have access to engaging and interactive lessons about Disability and/or Assistive Technology.

Aim: Author lesson modules on Disability and/or Assistive Technology suitable for use in a grade school classroom.

Design Criteria:

Other:

Recommended Skillset: Education - This project is for students in the Learning, Design & Technology (LDT) Program in the Graduate School of Education.

Links:


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Creative Expression

Background: Most everyone has a desire to be creative through activities such as writing, painting, sculpture, pottery, jewelry, quilting, photography, singing, dancing, and music.

Problem: Existing tools supporting creativity are often lacking for people with disabilities. Movement difficulties may prevent an individual from fully participating in their chosen activity.

Aim: Explore ways to enhance creative expression for people with disabilities. This could include the creation of new activities or fabrication of new tools.

Suggestions:

  • Convert the user's existing assistive technology device into a creative "paintbrush" or "musical instrument"
  • Use non-traditional inputs such as residual movements or brain waves
  • Adapt or create instruments for musicians with disabilities
    One-Handed Musical Instrument (OHMI) Competition

Other:

Recommended Skillset: Various, depends on chosen solution

Links:


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Designing Your Afterlife

Background: Death is the most severe form of disability as one is no longer able to interact with people or physical objects in the living world. What remains are only frozen static artifacts - images, writings, and the recollections of others. Gone are one's personality, beliefs, expertise, humor, vision, memories, insights, and intellect.

Problem: With one's death, it is impossible to provide a full and accurate representation of whom they were, what they believed in, and how they acted. The recollections of family and friends fade and disappear with time, leaving the departed one's legacy at the mercy of the living.

Aim: Explore ways to preserve one's essence after death. In the technology extreme, this might manifest itself as an interactive system that responds to queries, retells stories, relates experiences, shares expertise, and expresses humor. The pre-dead user would be able to create and program his / her eternal computer-based persona before her / his demise.

Other:

Recommended Skillset: Various, depends on chosen solution

Links:


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Student-defined Team Projects

Meet with course instructor to discuss and agree upon the specifics of the project. Interview, observe, and discuss assistive technology problems with an individual with a disability or older adult. Address their desire to participate in one of the following activities by designing an adaptation to an existing device / tool or creating a new, more useful one. Projects could address:
  • Activities of Daily Living - cooking, showering or bathing, dressing, cleaning, housework, yard work, employment, education, shopping, commuting, etc

  • Sports and Exercise - walking, running, indoor and outdoor sports, etc

  • Leisure Activities and Hobbies - collecting, model making, crafts, board games & videogames, etc


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Other project ideas

Project Coach:
David L. Jaffe, MS

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Updated 12/28/2017

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