Fall 2007 Design Review &. Faculty Advisors: Eric Nauman Andrew Brightman Robert Hannemann Team...
-
Upload
sabina-ryan -
Category
Documents
-
view
220 -
download
0
Transcript of Fall 2007 Design Review &. Faculty Advisors: Eric Nauman Andrew Brightman Robert Hannemann Team...
Faculty Advisors:
• Eric Nauman
• Andrew Brightman
• Robert Hannemann
Team Teaching Assistant:
• Theresa Gordon
Team Leader:
• Nolan Jones
Project Leaders:
• Josh Compton – Vent Team
• Alvin Chen – Toy Team
• Ryan Fraley – AAC Team
SVAT Team
SVAT Project Teams
1. Vent Project• Develop a safe transportation method for
parents and patients on ventilators.
2. Toy Project• Develop a fun toy to quantitatively measure
patient strength and reaction time.
3. AAC Project• Develop a dynamic website to help children
with speech disabilities communicate.
Josh Compton, Nolan Jones, Jason Toler, Daniel Oegerle, Abish Malik, David Gordon
SVAT - Vent Team
Vent Project Team
Project Goals
• Develop an improved method of transport for parents of infant patients on ventilators through St. Vincent Hospital Rehabilitation Center.
– Consolidate equipment to decrease travel preparation time and difficulty
– Organize equipment to remove potential hazards to both child and parent
SVAT - Vent Team
Current Transport
• Suction and oxygen tank hang off stroller handle• Apnea monitor and ventilator on 2nd extended seat• Ventilator back-up battery in basket under seats• Ambu bag on top of stroller canopy
SVAT - Vent Team
Main Equipment
SVAT - Vent Team
Equipment Length (in) Width (in) Height (in) Weight (lbs)
Ventilator 11 4 14 14.8
AC Adapter 4 2.5 6.5 Not Available
Back-up Bettery 11 9.5 9 28.2
Apnea Monitor 9.5 8 7.5 12
AC Adapter 3.5 3 5 2.8
Oxygen Tank 6.5 6 15 8
Suction Machine 10 7 13.5 9.8
AC Adapter 4 3 6 2.8
Tubing 72 - - Negligible
Previous Design• Spring 2007 Concept
– Single container carrier
• Made of PVC foam by Meyer Plastics
• Organize equipment by fit/nursing-based orientation
– Eg. suction canister is upright
• Ventilator hangs from a bracket on side closest to the child
• Plastic dust cover added to protect equipment (not shown)
SVAT - Vent Team
Velcro straps for tubing
Apnea Monitor
Oxygen Tank
Suction Machine
Equipment Setup in Previous Design
Project Partner Interaction
• Met project partner (St. Vincent’s)– Angela, occupational therapist
• Stated therapists no longer need the stroller box design. They want a design to fit safely in a car and that can be used at home.
SVAT - Vent Team
Previous Design Assessment
• Demands of partner have changed due to a new location in the hospital
• Safely fit carrier into a vehicle• Compatible with any stroller design
–Current stroller design is not used by all parents• Mount equipment so that it is accessible by the
driver• Make the carrier easy to use
–Easily secures into vehicle–Equipment only fits one way–Light weight for easy transport
Concerns of previous concept:
SVAT - Vent Team
Current Prototype Design
SVAT - Vent Team
Apnea Monitor
Suction Bag
O2 Tank
Suction Machine
Ventilator Clip
Design Rationale
SVAT - Vent Team
• Project Partner wanted in-home use
• Two boxes to better distribute weight
• Top box smaller to allow tubes to easily connect
• Four wheels enables to roll around house and stand alone
• Extendable handles allow ease of movement while maintaining L.C.G.
• Ability strap on back on passenger seat and anchor to frame for added safety
• Better secure O2 tank
Design Constraints• Accessible controls on:
– apnea monitor – ventilator screens
• Easily access:– ambu bag– suction machine’s
• “on” button• suction tube
• Minimized weight of device for easy handling• Made of an aporous material
– Must withstand routine disinfection
SVAT - Vent Team
Work to be Completed
This Fall:
1. Finish carrier frame
2. Build two boxes for equipment
3. Test carrier in car
SVAT - Vent Team
Project Timeline
SVAT - Vent Team
Week #
Activity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Orient and plan
Complete Paperwork for Delivery
Deliver Old Prototype
Research car safety
Feedback from PP
Modify carrier prototype
Design review
Deliver vent carrier
Evaluation period
Modification ideas/plans
End of Semester report
St. Vincent’s Needs
• Therapists at St Vincent’s currently measure muscular strength subjectively, or with a hand dynamometer
• St Vincent’s Need: Want a way of measuring the muscular strength and reaction time of pediatric patients quantitatively
SVAT – Toy Team
Problems with Hand Dynamometer
• Problems– Expensive– Too heavy for the
child– Awkward to handle
and squeeze for the child
– Not fun
SVAT – Toy Team
St Vincent’s Pediatric Patients
• Pediatric patients have:– Cerebral Palsy 40%– Autism 30%– Orthopedic 10%– Brain injuries 5%– Muscular Dystrophy 5%– Genetic Disorders 5%– Down Syndrome 5%
• Toy Team works with Shannon– Approximately 40 pediatric patients– Most are 4-7 years old
SVAT – Toy Team
How our Toys meet St Vincent’s Needs
• Fun interactive toy for the children
• Measures their reaction time and muscular strength quantitatively for the therapists– The physical and occupational therapists can
use the output data to gage the effectiveness of the physical therapy and to see the progress of each pediatric patient
SVAT – Toy Team
Electronic Components• WAM
– Microcontroller– LCD screen– Accelerometers– LEDs– Assembly language (AsmIde)
• Squeeze-o-Meter– Linear Potentiometer– Analog to Digital Converter, interfaced through USB– Excecutable Created with LabVIEW
SVAT – Toy Team
Squeeze-o-Meter• Engage muscles for both arms
• Two positions– Arms extended
• Biceps, Brachioradialis, Pectoralis Major, Triceps, Deltoids
– Arms Close to Trunk• Biceps and Deltoids.
• Handles for therapist to hold, for physically weaker children. Also allows for different variations of positions
• Uses Linear Potentiometer to measure spring compression.
SVAT – Toy Team
New Squeeze-O-Meter Design
Plastic rings to stabilize spring as well as potentiometer.
Moving cap attached to potentiometer.
Fixed end with threaded cap, allowing for spring to be changed.
SVAT – Toy Team
Electronic Components
1. Core sensor- Linear Potentiometer. Linear potentiometer provides different
voltage values depending on different displacement of compression.
2. Analog Digital Converter- converts the voltage reading from the potentiometer into a value which the computer can comprehend
SVAT – Toy Team
Mechanical Components
1. Lexan Tubes and disks Durable more than 200times of glass and 30times of
acryl. Thus, make the toy more durable in the environment where kids punch and kick the toy around.
2. Springs – with varying spring constants of 25/4.5(lb/inch)3. PVC Caps 4. Bearings- Plastic rings. Reduces friction between the
cylinder and the caps. 5. Bolts- To provide more durability when assembling
components. 6. Threading – To provide ability to interchange springs by
removing caps.
SVAT – Toy Team
St. Vincent’s Problem
• Our team is working with Amy Riego and Dana Stewart.• Work with young children with speech impairments.• They use various different devices.
• Commercial devices are very expensive.• Health care for many children will only cover one
device in a lifetime.
• Need for cheaper alternatives to commercial devices.
SVAT – AAC Team
St. Vincent’s Current AAC Devices
Picture Board Handheld Touch Screen Device
•Simple word identification
•Time consuming to modify
•Therapist records each word
• Aids in more complex communication
•Easy to modify content
•Ability to form phrases or use for simple word identification
SVAT – AAC Team
Project Specifications
• Inexpensive– A communication tool that is significantly
cheaper than commercially available solutions
• Easy to use– Small learning curve for therapists and
caretakers– Comfortable and customizable interface for
patients
• Versatile– Adaptable content for multiple user accounts– Customizable format for various
communication and mobility levels
SVAT – AAC Team
Solution – Dynamic Website and Touch Screen
• Solution: Use a touch screen interface with a dynamic website to help children communicate.
• Website must be dynamic and customizable for each patient.– User account for each patient– Specify what content is on each page
• Functionality similar to high end commercial devices– Navigate using buttons that contain images
– Sounds are played when pushing buttons
SVAT – AAC Team
Main Directory
Food
School Toys
Family
•Snacks•Drinks•Fruits
•Mom•Dad•Sister•Brother•Grandma
•Train•Ball•Bubbles•Video Games
•Book bag•ABCs•123s•Colors
•Pudding•Yogurt
•Cookies•Pretzels•Crackers
•Milk•Juice•Water
•Banana•Grape
•Red•Yellow•Blue•Green•Black
Food
Family Toys
School
Book bag
Fruits
Drinks
Snacks
Example Navigation Chart
* Each menu will have image and audio/video option.
•Ruler•Crayons•Books
•1-10
•A-Z (song)
123s
Color
ABCs
Dynamic Implementation
• Primarily utilizes PHP and MySQL database backend.
• Databases are used to store patients settings– Images– Sounds– Preferences– Communicator
SVAT – AAC Team
Work Done Last Semester
• Prototype version completed– Given to St. Vincent for testing and feedback
• User manual started
• Purchased hosting server
SVAT – AAC Team
Work Done This Semester• Revised “add and modify content” page
– Simpler to use
• Addressed issues with Internet Explorer
• Brainstormed ideas for further applications of website– PDA– Hospitals– Children at home
• Completed user manual
SVAT – AAC Team
Add and Modify Content
• Problem– Previous process was complex and difficult to
understand– Time consuming
• Solution– Create a drag and drop process using AJAX– Allows for “instant” updating– Simpler to understand
• Demo
SVAT – AAC Team
Internet Explorer Issues
• Problem– Internet Explorer was not playing sounds
• Solution– Sound Manager 2
• Javascript Sound API talks to Flash
• Concerns– Requires Flash Player
SVAT – AAC Team
Future Applications
• Portable offline version of communicator– PDA
• Software on PDA connects to server– Download static version of communicator
• Images• Sounds• Pages
• Launches downloaded pages
SVAT – AAC Team
Future Applications
• Software development issues on PDA– Lack of training– Limitation of PDA resources
• Purchased a PDA– Begin development
SVAT – AAC Team
Future Applications
• Portable communicator in hospitals– Language differences– Act as a translator
• Ability to store multiple languages onto one device
SVAT – AAC Team
Future Applications
• Children with lower mobility at home– Multiple monitors throughout house
SVAT – AAC Team
Work To Be Completed
• Begin PDA software development
• Continue to brainstorm future applications
• Obtain feedback on new “add and modify content” page
SVAT – AAC Team