Wireless Patient Monitoring System

Digital Health SectionProfessor: Patricia Mellodge

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

They would focus in three main areas Prevention Diagnosis Curing

What is Digital Health?

Reduces the use of wires in the room through the use of wireless transmission

The project is mainly designed to collect information on the patient Location Temperature

Our Project

First Ideas:Pollution Filter MaskOxygen Tank Flow RegulatorOrthopedic ShoesArthritic Glove

Project Selection Process

Voting: Ranked Projects 1-6 Top three projects discussed Weighed pros and cons Overall compatibility as a class/group project

Project Selection Process

To construct a wireless system containing a hospital bed, computer monitor, and a patient sensor rig; which

would alert an outside party of a patient’s position and

medical status.

Objective

Wireless Patient Monitoring System

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

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: Materials

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

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 ArmbandAltered iPod Armband will

house enclosure

Patient

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

Tilt SensorsArmband • Patient Rig• Supports mobility• Unobtrusive

location• Lightweight

design

Accelerometer

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 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

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

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 < $300

Parts ListPart Name Part Number Price Quant

ity Vendor

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

Triple Axis Accelerometer Breakout - MMA7361 SEN-09652 $11.95 1 Sparkfun

Electronics

Xbee 1mW Chip Antenna-Series 1(802.15.4) WRL-08664 $22.95 each 3 Sparkfun Electronics

Xbee Explorer Dongle WRL-09819 $24.95 1 Sparkfun Electronics

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

Arduino Nano Version 3.0 RB-Gra-01 $32.99 2 RoboShop

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

ASIN: B000MZYDF6 $33.48 1 Amazon

Gens ace batteries 98P-20C-850-2S1P-2222-Asoft $5.80 3 Hobbypartz

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

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

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

Questions?