melvin rivera suárez project manager alexis ortiz pérez rafael vega díaz wilfredo bermúdez soto
TRANSCRIPT
An estimated 80,700,000 American adults (one in three) have one or more types of cardiovascular disease
Every minute counts. For every minute heart failure goes untreated, unrecoverable damage occurs to the heart muscle
Current heart monitoring equipment is commonly stationary, available to patients at hospitals or at their house
Patients’ lifestyle often makes it difficult for them to access heart monitoring equipment.
Health care professionals need live data on the health of their patients to help them during emergencies
Device Measure the ECG wave form and analyze Portable, wireless Detect if the user is having a heart attack or any
other heart problem. Mobile phone
Receive the alert of the device and send a message to the persons previously selected
Beyond our scope Power consumption optimization of the Analog
circuit
Software optimization. Should be easy installable within a 15 minutes by Nov 2.
Have a working prototype by Nov 21. Hand in a written system manual to the
project manager for review. It should describe all the system functionalities and legal disclaimers by Nov 24.
Tests in different scenarios. This will help to detect any situation not considered in the design process by Nov 25.
Patient Portable Device
ECG SensorsMobile Phone
Analog Circuit
Microcontroller
Bluetooth Module
Medical Emergency
Network
Electrocardiogram: Measure of the heart’s electrical activity
Heart Rate PR Interval QRS Duration QT Interval QRS Axis
Ideally, any type of electric contact could be used
However, wearable, safe and reliable electrodes are desired for the final product
Standard medical ECG electrodes will be used Two electrodes to be placed on the patient’s
chest Third electrode will be internal to the circuit: Virtual right
leg driven
Analog Circuit Instrumentation Amplifier: AD624
Appropriate for amplifying small signals High Gain: Adjustable up to 10K High Common Mode Rejection Ratio: 80 dB @ unity
gain Low Noise: 4 nV/√Hz @1 kHz
Photo coupler: PS2506 Electrically isolates the amplifier output signal from
the rest of the device System security measure
Band Pass Filter Filters signals below 0.04 Hz to 150 Hz Average heart signal is 50Hz to 70 Hz
MSP430F149: Ultra low power 16 bit microcontroller Responsible for all needed calculation of the ECG
wave form Provides the necessary synchronization of the
system Specs:
Supports clock rates up to 8MHz 60 KB of flash ROM 2 KB of RAM 12-bit ADC 2 DAC outputs, 2 UART (serial) ports, and 48 General
Purpose IO (GPIO) pins
KCWireFree KC21Bluetooth module Class 2 module
Average power dissipation: 2.5mW Small and power efficient 10m Range Built in antenna
Interface between the monitor and the patient
Holds emergency contacts, and alerts them in case of a heart attack
Development Platform: J2ME JAVA as a development tool for Mobile devices
Development Tools Eclipse, MicroEmulator, NetBeans
Total cost
Equipments and parts $454.95
Employees $40,551.71
Subtotal $41,006.66Total after Overhead
150% $102,516.65
Employee Salary per hour
Work hours
requires
Total cost
Software Engineer $19.75 280 5,530
Software Engineer $19.75 280 5,530Hardware Engineer
$19.17 280 5,367.60
Project Manager $37.09 280 10,386
Subtotal Cost
26,813.60
Bonuses (1.9%) 509.46Unemployment
Insurance (1.40%)
375.3904Disability (1.1%) 294.9496
S.S 5.3% $1,421.12
Healthcare (7.4%)
$1,984.21
401K/403b (4.3%)
1152.9848
Sub total $32,551.71 Professional consultant
$100.00 80 $8,000
Total Employee Cost $40,551.71
Hardware components damaged Unavailability of components Data lost or damaged Computer Crash Loss of a Team Member
Environmental Issues Battery Disposal
Legal Issues Harmful Electromagnetic Interference
Social Impacts Mobile Phone Radiation Might give a false sense of security to a
patient which condition really needs a direct hospital care
Monitor heart status anytime, anyplace Portable device can be worn and is easy to carry Provides patients with reliable heart
monitoring Mobile phone software displays heart status Provides patients with prompt medical
assistance Send an emergency message if user has a heart
attack or any emergency situation. Improve the time of an emergency response