PERSONAL MEDICAL MONITORJason Ewing, Morgan Hinchcliffe, Dina Irgebayeva and Aida Kulmambetova

1. Problem Situation

Heart disease, cancer, and diabetes are chronic diseases affecting 90 million Americans’ quality of life

Almost 80% of Americans have one chronic disease, while over 50% are affected by more than two

System to be developed should be portable, cost no more than $200 per unit and put into operation in 6 months

(Source: CDC, National Center for Health Statistics)

2. Customer Requirements

Easy to use Low maintenance Low cost Provide continuous care anytime, 24 hours a day Wide range coverage Reliable Emergency contact

Design Statement Provide timely access to a patient's health status

to improve the patient's quality of life and reduce healthcare cost

3. Derived Requirements

I/O Requirements: Collects health-specific metrics from devices and sends to them to serverTechnical Requirements: 2.4 GHz wireless systems, sensors and GPS location tracking transmitting to a

server with online accessible databasePerformance Requirements : If the vitals or tracking information is out of the safe range or emergency button

is pressed specified signal to be sent to server through a 240 kb/s network Packages of data should be sent to server every 1 hour while there is no

emergency caseCost Requirements: The cost of development for the implementable system design is less than

$44,000Trade Off Requirements: System lifetime is 5 yearsTest Requirements: Collect data from sensors every 10 sec with the accuracy ±0.05%

4. Use Case Model

GPSLocati

on

BloodPressu

re

3rd-PartyCaretak

er

Emergency

Dispatch

HeartRate Graphic

UserInterfac

e

Monitor

Analyze

Data

Emergency

Button

5. Concept Exploration

Alternative System Design: 1. Place elderly person in nursing home

2. Hire stay at home nurse

3. Connect patient up to conventional vitals monitoring devices

Evaluation Criteria:1. Leads to lack of independence, causes depression

2. Extremely costly and similar problems to (1)

3. Limits mobility and uncomfortable

Do Nothing Alternative: Increase chances of injury and slower response time to

emergencies