wireless patient monitoring system
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Wireless Patient Monitoring System. Digital Health Section Professor: Patricia Mellodge May 4, 2012. What is Digital Health?. 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 - PowerPoint PPT PresentationTRANSCRIPT
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Wireless Patient Monitoring System
Digital Health SectionProfessor: Patricia Mellodge
May 4, 2012
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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?
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Prevent further injuriesWireless reduces risks
Collect information from patient LocationTemperature
Wireless Monitoring System
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First Ideas:Wireless Patient Monitoring System
Pollution Filter MaskOxygen Tank Flow RegulatorOrthopedic ShoesArthritic Glove
Project Selection Process
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Voting: Ranked Projects 1-5 Top three projects discussed Weighed pros and cons Overall compatibility as a class/group project
Project Selection Process
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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 Integrates and improves already existing
concepts
Results
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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
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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
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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
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Wireless Patient Monitoring System
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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 settings
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6’ x 2’ egg crate foam mattress pad
2 sheets of 6’ x 2’ plywood12 contact switchesMicrocontrollerMiscellaneous assembly hardwarePower source (lithium battery)
Bed: Materials
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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: Materials
Switch
Trigger
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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.
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First Design
New Design
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Prevention of accidents through awareness of
patient status, accurate monitoring of position,
temperature, and orientation
Patient: Objective
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Use a microcontroller to wirelessly transmit information from:Temperature sensorAccelerometer and tilt sensorsIndicate body orientation and location
Plan
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Accelerometer and tilt sensors- Specifications: for each and picture
Temperature sensor
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Patient
Original image obtained from:http://www.mrprotocols.com/oldsite/MRI/information.htm
Tilt SensorsArmband • Patient Rig• Supports mobility• Unobtrusive
location• Lightweight
design
Accelerometer
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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
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To 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
Nurse’s Station: Objective
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Through LabVIEW, we 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
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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
USB dongle is used to integrate the transceiver with the computer
Nurse’s Station: Parts
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Nurse’s Station: LabView Demo
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Outline
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Proof of concept(Bed to Nurse’s Station)
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LabVIEW Code
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The Final Nurse’s Station
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Goal was to shop efficiently Buy only essential parts Buy the cheapest compatible
parts Research each part individually
Write a proposal Have it approved
Budget < $350
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Patient GroupPart Name Part Number Price Quantity Vendor Part Use
4 Way Tilt Sensor SEN-10313 $2.95 each 3Sparkfun Electronics
Patient Orientation
Triple Axis Accelerometer Breakout - MMA7361
SEN-09652 $11.95 1Sparkfun Electronics
Patient Motion
Xbee 1mW Chip Antenna-Series 1(802.15.4)
WRL-08664 $22.95 each 3Sparkfun Electronics
Communication
ARduino Nano version3.0
RB-Gra-01 $32.99 each 2 RobotShopAnalyze/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 3Sparkfun Electronics
Regulate Voltage
Temperature Sensor LM34DZ $2.51 each 2 Digi KeyPatient Temperature
RPI-1031 Tilt-a-Whirl Breakout
SEN-10621 $6.99 each 3Sparkfun Electronics
Patient Orientation
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Part Name Part Number Price Quantity Vendor Part Use
Xbee 1mW Chip Antenna-Series 1(802.15.4)
WRL-08664 $22.95 each 3Sparkfun Electronics
Communication
SPDT Switch Without Roller
275-016 $3.19 each 12 Radio ShackPatient Location
ARduino Nano version3.0
RB-Gra-01 $32.99 each 2 RobotShopAnalyze/Transmit Information
Egg Crate Convoluted 3 Inch Foam Mattress Pad/Topper Twin Size
ASIN: B000MZYDF6
$33.48 1 AmazonPatient Comfort
Gens ace batteries 98P-20C-850-2S1P-2222-Asoft
$5.80 3 Hobbypartz Power Supply
Voltage Regulator-3.3V
COM-00526 $1.95 each 3Sparkfun Electronics
Regulate Voltage
Sheet of Plywood 4' x 8'
166030 $24.77 1 Home DepotBed Foundation
Bed Group
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Part NamePart Number
Price Quantity Vendor Part Use
Xbee Explorer Dongle
WRL-09819 $24.95 1Sparkfun Electronics
Communication
Xbee 1mW Chip Antenna-Series 1(802.15.4)
WRL-08664 $22.95 each 3Sparkfun Electronics
Communication
Nurse’s Station
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Patient Group- $77.49Bed Group- $160.22Nurse’s Station- $47.89Grand Total- $326.35
Total Cost
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Add Movie
Test Results
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Split into Comparison Table: Temperature was: Position was :
Results
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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
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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
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Addition of different sensorsHeart rateEKG
Farther transmission rangeAbility to monitor more patients
Possible Improvements
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Brendon DeManche Robert Hilton
Special Thanks To
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Questions?