Wireless Patient Monitoring System Digital Health Section Professor: Patricia Mellodge

What is Digital Health? 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

Project Selection Process First Ideas: Pollution Filter Mask Oxygen Tank Flow Regulator Orthopedic Shoes Arthritic Glove Voting: Ranked Projects 1-6, top three projects were discussed Weighed pros and cons Overall compatibility as a class/group project

Objective 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.

Wireless Patient Monitoring System

Project Schedule Week 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

Bed: Materials 6’ x 2’ egg crate foam mattress pad 2 sheets of 6’ x 2’ plywood 12 contact switches Miscellaneous assembly hardware

Bed: Materials Contact Switches The switches are constantly open unless depressed by a patient on the bed. This will send a high(1) signal to the microcontroller

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.

Patient: Objective Prevention and awareness of danger to the patient through accurate monitoring of position, temperature and orientation

How Use a microcontroller to wirelessly transmit information from: Temperature sensor Accelerometer and tilt sensors Indicate body orientation and location Easy to maneuver and lightweight iPod Armband

Patient: Armband Easy to maneuver and lightweight iPod Armband Altered iPod Armband will house enclosure 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

Patient Patient Rig Supports mobility Unobtrusive location Accelerometer Patient Rig Supports mobility Unobtrusive location Lightweight design Tilt Sensors Armband Original image obtained from: http://www.mrprotocols.com/oldsite/MRI/information.htm

Nurse’s Station: Objective 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: Parts 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: The Plan 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: LabView Demo

Outline

Budget < $300 Goal was to shop efficiently Buy only essential parts Buy the cheapest compatible parts Research each part individually Write a proposal Have it approved

Parts List Part Name Part Number Price Quantity Vendor 4 Way Tilt Sensor SEN-10313 $2.95 each 3 Sparkfun Electronics Triple Axis Accelerometer Breakout - MMA7361 SEN-09652 $11.95 1 Xbee 1mW Chip Antenna-Series 1(802.15.4) WRL-08664 $22.95 each Xbee Explorer Dongle WRL-09819 $24.95 SPDT Switch Without Roller 275-016 $3.19 each 12 Radio Shack Arduino Pro Mini 328 - 3.3V/8MHz DEV-09220 $18.95 2 Egg Crate Convoluted 3 Inch Foam Mattress Pad/Topper Twin Size ASIN: B000MZYDF6 $33.48 Amazon Gens ace batteries 98P-20C-850-2S1P-2222-Asoft $5.80 Hobbypartz Voltage Regulator-3.3V COM-00526 $1.95 each Sheet of Plywood 6' x 2' Home Depot

Advantages 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

Questions?