Healthcare At PlayDAVID TRUJILLO

MATT BERTSCHMAN

TIFFANY L. CHANG

EKUBAY KIDANE

ELEC-4319Spring 2020

Design Project:

► We are building a device that will aid in hand rehabilitation. This project is significant because hand rehabilitation is very important. The hands are key body parts in many functions, the hand is the largest sensory portion of the brain. Over 28 million people suffer from arthritis or conditional injuries, and if our project can help any of those people rehabilitate their motor skill it will be valuable.

Stakeholder Groups:

►Stakeholders (12 people)

►1) Medical Professionals (2)

►Anschutz Medical Campus

►Bioengineering

►Prosthetics

►2) Injuries/Osteoarthritis- (9)

►We talked to a number of people struggling with hand injuries

►3) Software Company (1)

►Vicon

►Rehabilitation through Movement Tracking

Continued Check-ins with Stakeholders

► Meeting with Dr. Richard Weir

► Bioengineering Associate Professor

► Location: Anschutz Medical Campus

► Date: 13th March 2020

► Discuss and gather more user feedback from Dr. Weir.

Proof of Concept

Project Background:

This small and inexpensive device will greatly help patients manage their osteo-arthritis.

Problem Statement:

The overall objective of these next couple of months is to greatly reduce the size and cost of the first 2 iterations of the prototype.

While increasing the overall performance of the device by including various types of games.

Objectives/Scope:

Reduce the size of device allowing for easier transportation.

Improve the performance of device by implementing SPI telecommunication capabilities.

This semester’s prototype will yield a smaller, lighter, and cheaper device than the previous semester.

Design Methods and Design Processed Used:

Affinity Analysis and Top 7 Needs:

User Friendly: anybody can

use our product easily regardless of age or gender

Cheap: anyone can afford to buy or use device

Design: easy to use and play

with

Entertaining: we want the

product to be fun and

entertaining

Faster Rehabilitation/Efficient: we want patients

that are injured to recover

faster

Way to log data for tracking

progress: we want to see the

progress in real time

Safe: we want our product to be safe to play

with

Journey Map:

Mind Map:

PSPICE SIMULATION

Diagram of our active low pass RC filter with our force sensitive resistor being

R.

PSPICE SIMULATION: Frequency Response

The cutoff frequency is at around 51.766kHz for out low pass filter.

PSPICE SIMULATION

Voltage VS. Frequency Graph at 100k ohm.

PSPICE SIMULATION

Voltage VS. Frequency Graph at 10k ohm.

Total:$722.61

Budget

  Date Items: Quantity Price: Sales Tax Shipping Total Price: Notes:

1

Fall 2019 Fevas- Force Sensitive Plantar Flexible Robot FSR

Insole (1st Sensor)1 $10.89 $0.00 $0.00 $10.89  

9/20/2019

2Fall 2019 Cando Digi Squeeze 1 $18.24 $0.00 $0.00 $18.24  9/20/2019

3

Fall 2019

Color Sensor TCS230 TCS3200 Color Recognition

Sensor Detector Module DC 3-5V Input Compatible

with Arduino by Atomic Market

1 $8.99 $0.00 $0.00 $8.99  

10/8/2019

4Fall 2019 MCP6004-I/P 10 $0.44/each $0.29 $6.78 $11.47  10/28/2019 Op amp

5Fall 2019 Toupee Tape 1 $8.99 $0.00 $0.00 $8.99  10/28/2019

6Fall 2019 Rolyan Gel Padding 1 $18.89 $0.00 $6.99 $25.88  10/28/2019

7

Fall 2019 Adafruit-Round Force-Sensitive Resistor

(FSR) - Interlink 4024 $28.00 $0.00 $8.06 $36.06 Out of Stock 11/17

10/28/2019

8

Fall 2019 Adafruit-Round Force-Sensitive Resistor

(FSR) - Interlink 4023 $10.00 $0.00 $0.00 $30.00

Sensors were purchased second

time.11/2/20199 Spring 2020 Adafruit-Round

Force-Sensitive Resistor (FSR) - Interlink 402

10 $10.00 $0.00 $0.00 $100.00 Sensors were purchased third time.  1/25/2020

10 Spring 2020Elegoo Mars 3-D Printer

1 $230.00 $0.00 $0.00 $230.00    1/25/2020

11 Spring 2020Resin 2 $40.00 $0.00 $0.00 $80.00    1/30/2020

12 Spring 2020FEP Film 5 $20.00 $0.00 $0.00 $100.00    2/5/2020

13 Spring 2020Rubbing Alcohol 5 $3.00 $0.00 $0.00 $15.00    2/12/2020

14Spring 2020

Phillip Screws 1 $1.00 $0.00 $0.00 $1.00  2/15/2020

15Spring 2019

Nitrile Gloves (50 pack) 1 $20.00 $0.00 $0.00 $20.00  2/24/2020

16

Spring 2019Stripped Micro Screw

removing Drill Bit 1 $10.00 $0.00 $0.00 $10.00  2/21/2020

17Spring 2019 Mean Green Floor

Degreaser ( Gallon)1 $5.00 $0.00 $0.00 $5.00  2/21/2020

18Spring 2019

CanDo Digi Squeeze 1 $8.39 $0.00 $0.00 $8.39  2/24/2020  

19Spring 2019 NRF24L0 (Wireless RF

Transceiver)2 $10.99 $0.00 $0.00 $21.98  2/24/2020

Total: $722.61

• Elegoo Mars 3-D printer-

• 10 new FSR sensors

• 2 NRF24L01 Wireless RF Transceiver

CURRENT WORKING PROTOTYPE

CURRENT WORKING PROTOTYPEGAME

CURRENT WORKING PROTOTYPEOUTPUT OF SERIAL MONITOR

Output Voltage shown in Serial Monitor.

As less pressure is applied to the ball, the voltage decreases. This can be seen in the Serial Monitor of our code.

Prototype 3rd Iteration-

● Improved robust circuit design and housing unit

● 3-D Print Ball○ More solid design than current

CanDO foam stress ball.

○ Core of foam ball = too compressible

○ Improve sensor reading

● Galaga/ Space Invader Game

Prototype 3rd Iteration- 3D printing

► Drawn in CAD.► Ergonomic design► 3-D Print Ball

3D Printing Actual Product

3D Printing Actual Product

► Egg Shape► Promotes

comfortability

► Easy to hold

Wireless Implementation-Original Code

Wireless Implementation-Modified Original Code

Wireless Implementation-Output Data

Serial Monitor Output for two Arduino Boards.

Patent Research:► Case 1:

http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&d=PG01&s1=20150269851.PGNR.

► Patent for device that provides visual instruction.

► Case 2: https://academic.oup.com/ptj/article/91/10/1449/2734979

► Interactive Computer Game

► Has an engaging and interactive game for the elderly.

Case 2: Balancing Device

Patent Research:► Case 3:

https://patents.google.com/patent/US6872187B1/en?q=osteoarthritis&q=rehabilitation&q=game&oq=osteoarthritis+rehabilitation+game

► Hand Rehabilitation Glove that minimizes stress on the joints of the hands.

► Glove VS Sphere

Fun & What We've Done:► Our code will involve reading voltage

at Rf with Arduino, will make a vector to save data from each sensor depending on run time. Vectors will be filled with data each taken every couple microsecond, number will be voltage measurements which increase as pressure increases, EX. Rs decreases with pressure so voltage divider at Rf increase. These values can be fed to processing and each data vector can be used as feedback for some purpose, EX. color changing or turning on lights. We will average the data into soft, medium or hard. Total of 5 sensors with 3 input modes.

Thank you!