Wireless Patient Monitoring System

Digital Health SectionProfessor: Patricia Mellodge

The use of electronics; in or on the body to assist medical professionals when treating various illnesses and ailments

Projects can focus in three main areas Prevention Diagnosis Curing

What is Digital Health?

Prevent further injuriesWireless reduces risks Collect information from patient

LocationTemperature

Wireless Monitoring System

First Ideas:Wireless Patient Monitoring System

Pollution Filter MaskOxygen Tank Flow RegulatorOrthopedic ShoesArthritic Glove

Project Selection Process

Voting: Ranked Projects 1-5 Top three projects discussed Weighed pros and cons Overall compatibility as a class/group project

Project Selection Process

Top three choices were: Wireless Patient Monitoring System, Pollution Filter Mask, and The Oxygen Tank Flow Regulator

Choose Wireless system because: Filled all digital health requirements Whole class could contribute Relevant use in real world Very broad consumer base New idea

Results

To construct a wireless system containing:a hospital bed computer monitor a patient sensor rig

which would alert an outside party of a patient’s position and medical status.

Objective

Project ScheduleWeek Task

Weeks 1-4 (Jan. 27-Feb.18) Brainstorm and create a project plan

Week 5 (Feb.19-25) Create a parts list

Week 6 (Feb. 26-March 3): Order parts and create mid-semester presentation

Week 7 (March 4-10) Mid-semester presentation

Week 8 (March 11-17) Create schematics and begin assembly

Week 9 (March 18-24) Spring Break (each group needs to start writing for final report)

Week 10 (March 25-31) Continue assembly

Week 11 (April 1-7) Finish assembly, begin testing, and continue to work on final report

Week 12 (April 8-14) Start troubleshooting and continue to compile final report

Week 13 (April 15-21) Finalize prototypes, compile presentation, and edit report

Week 14 (April 22-28) Prepare final presentation and edit final report

Week 15 (April 29-May 5) Final Project Presentation due May 4 at 8:30AM

Week 16 (May 6-12) Final Report due on May 11 at 8:30AM

Patient Group Nathan

Coutermarsh Dillon Quadrato Dana Subki Loay

Alabdulmohsin Jason Jolles Kevin Veilleux Alyssa Broatch Melvin Peralta Stacey Dufrane

Groups

Nurse’s Station Alex LaMarche Shanique Jiles Tim Zimmerman Luis Luna

Bed Group Feng Chen Gino Cardone Benjamin

Basso Jeremy Harvey Rajin

Roophnath Stephen Sett Matthew Smith

Wireless Patient Monitoring System

Bed Monitoring: Objective

Bed sensors determine if patient is in bed

Switches in a grid pattern are used to determine the patients location

Can be used in various hospice settings

6’ x 2’ egg crate foam mattress pad

2 sheets of 6’ x 2’ plywood12 contact switchesMiscellaneous assembly hardware

Bed: Materials

Contact SwitchesThe switches are constantly

open unless depressed by a patient on the bed.

This will send a high(1) signal to the microcontroller

Bed Process

Switch

Trigger

Bed Monitoring: Design One sheet of plywood serves as a base, while the

switches are mounted on top of it. The second sheet of plywood has holes drilled in it.

When the switches are depressed, they are flush with the top sheet of plywood.

Egg crate foam pad rests on top of the plywood to create a comfortable sleeping environment.

Prevention of accidents through awareness of

patient status, accurate monitoring of position,

temperature, and orientation

Patient: Objective

Use a microcontroller to wirelessly transmit information from:Temperature sensorAccelerometer and tilt sensorsIndicate body orientation and location

Plan

const int Xin=A5;//x axis accelerometer const int Yin=A6;//y axis const int Zin=A7;//z axis const int temp_sens=A4;//temp sensor const int tilt11in=13;//tilt sensor 1-1 const int tilt12in=12;//tilt sensor 1-2 const int tilt21in=11;//tilt sensor 2-1const int tilt22in=10;//tilt sensor 2-2 const int tilt31in=9;//tilt senosr 3-1 const int tilt32in=8;// tilt sensor 3-2 const int zerogin=7;//0g for accelerometer const int gselin=6;//g select //tranciever ports

Temperature sensor

Patient

Original image obtained from:http://www.mrprotocols.com/oldsite/MRI/information.htm

Tilt SensorsArmband • Patient Rig• Supports mobility• Unobtrusive

location• Lightweight

design

Accelerometer

Patient: Armband

Image obtained form:http://mp3.about.com/od/iPod-MP3-Player-Accessories/tp/Top-5-Ipod-Armbands-Listen-To-Digital-Music-On-Your-Ipod-While-You-Exercise.htm

Easy to maneuver and lightweight iPod Armband houses the

enclosure of partsAltered iPod Armband will

house enclosure

Through LabVIEW, we can make a presentable way to show the nurse the information on each patient that needs to be monitored.

We take data from the sensors taken from the other groups and present them in an organized manner

To do this, we use a wireless receiver in order to gather the data from their sensors

Nurse’s Station: Objective

LabVIEW will: Receive data from transceiver Parse the sensor data from the data

packet Utilize algorithms to filter

accelerometer data Display the patient's information to

the user

Nurse’s Station: The Plan

LabVIEW is used to display the information obtained from the patient and bed sensors

Transceiver will request and receive packets of data from all the sensors on the network

Nurse’s Station: Parts

Nurse’s Station: LabView Demo

Outline

Goal was to shop efficientlyBuy only essential partsBuy the cheapest compatible partsResearch each part individually

Write a proposalHave it approved

Budget < $350

Patient GroupPart Name Part Number Price Quantity Vendor Part Use

4 Way Tilt Sensor SEN-10313 $2.95 each 3 Sparkfun Electronics

Patient Orientation

Triple Axis Accelerometer Breakout - MMA7361

SEN-09652 $11.95 1 Sparkfun Electronics Patient Motion

Xbee 1mW Chip Antenna-Series 1(802.15.4)

WRL-08664 $22.95 each 3 Sparkfun Electronics

Communication

ARduino Nano version3.0 RB-Gra-01 $32.99 each 2 RobotShop

Analyze/Transmit Information

Gens ace batteries 98P-20C-850-2S1P-2222-Asoft

$5.80 3 Hobbypartz Power Supply

Voltage Regulator-3.3V COM-00526 $1.95 each 3 Sparkfun Electronics

Regulate Voltage

Temperature Sensor LM34DZ $2.51 each 2 Digi Key Patient Temperature

RPI-1031 Tilt-a-Whirl Breakout SEN-10621 $6.99 each 3 Sparkfun

ElectronicsPatient Orientation

Part Name Part Number Price Quantity Vendor Part Use

Xbee 1mW Chip Antenna-Series 1(802.15.4)

WRL-08664 $22.95 each 3 Sparkfun Electronics

Communication

SPDT Switch Without Roller 275-016 $3.19 each 12 Radio Shack Patient

Location

ARduino Nano version3.0 RB-Gra-01 $32.99 each 2 RobotShop

Analyze/Transmit Information

Egg Crate Convoluted 3 Inch Foam Mattress Pad/Topper Twin Size

ASIN: B000MZYDF6 $33.48 1 Amazon Patient

Comfort

Gens ace batteries 98P-20C-850-2S1P-2222-Asoft

$5.80 3 Hobbypartz Power Supply

Voltage Regulator-3.3VCOM-00526 $1.95 each 3 Sparkfun Electronics

Regulate Voltage

Sheet of Plywood 4' x 8' 166030 $24.77 1 Home Depot Bed

Foundation

Bed Group

Part Name Part Number Price Quantity Vendor Part Use

Xbee Explorer Dongle WRL-09819 $24.95 1 Sparkfun

ElectronicsCommunication

Xbee 1mW Chip Antenna-Series 1(802.15.4)

WRL-08664 $22.95 each 3 Sparkfun Electronics

Communication

Nurse’s Station

Patient Group- $77.49Bed Group- $160.22Nurse’s Station- $47.89Grand Total- $326.35

Total Cost

Add Movie

Test Results

Split into Comparison Table: Temperature was: Position was :

Results

A wireless system has several advantages such as: Patient safety Low maintenance Ease of mobility for the

caretaker/patient Capacity for transmitting information

No need for a bulky monitoring station

Advantages

Satisfies a demand for monitoring: Unattended falls, heart attacks, fevers,

and several other medical mishaps Societal demand for this system due

to staffing constraints Applicable in a home setting Easy interface with future link to app

on portable phone

Advantages

Addition of different sensorsHeart rateEKG

Farther transmission rangeAbility to monitor more patients

Possible Improvements

Questions?