1 / 23

Smart Mattress System for Patient Care: Bedsores Prevention and Inactivity Monitoring

This smart mattress project, developed by students at Georgia Institute of Technology, aims to enhance patient care in hospitals and nursing homes by integrating advanced technology. The system focuses on preventing bedsores through wetness and inactivity detection, while also implementing a patient identification system using RFID technology. Alerts are provided to caregivers when potential risks are detected. With a total cost of $1,055, this innovative solution is designed to be cost-effective, portable, and user-friendly, ensuring better patient outcomes and improved safety.

riona
Télécharger la présentation

Smart Mattress System for Patient Care: Bedsores Prevention and Inactivity Monitoring

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Smart Mattress Bryan Kuo, Priyen Patel, Dev Shah, Xitij Shah, Tim Stamm Georgia Institute of Technology December 5, 2008

  2. Project Overview • Goals: • Prevent bedsores acquired on hospital/nursing home beds • Wetness Detection • Inactivity Detection • Prevent incorrect medication administration • Patient Identification System • Patient Barcode Display • Clients: • Hospitals • Nursing Homes • Cost: $1,055

  3. Design Objectives • Identify patients using RFID • Display patient information and barcode on a PC monitor • Detect moisture and patient inactivity that could cause bed sores • Alert staff if patient is in danger of developing bed sores

  4. Overall System - Current

  5. Overall System - Current

  6. Previous RFID System • Passive RFID System • OBID i-scan HF RFID Reader • OBID i-scan HF Pad Antenna • RFID Operating Frequency: 13.56 MHz • RFID Antenna Range: 7 in. • RFID Transmitting Power: 1W ± 2 dB * Note: This range did not meet our specifications

  7. Current RFID System • Active RFID System • Wavetrend RX201 Active RFID Reader • Wavetrend AN100 Active Whip Antenna • RFID Operating Frequency: 433 Mhz • RFID Antenna Range: 35 ft • RFID Wavelength: 2.3 ft • Tag Battery Life: 5 years

  8. RFID System • RFID antenna located at foot of bed • Wavetrend Active RFID tags • Patient tag compared to patient ID database • Patient name and barcode displayed on PC RFID Tag Reader and Antenna HP Slimline PC

  9. RFID Detection Range

  10. Inactivity Monitoring System

  11. Inactivity Monitoring System

  12. Wetness Detection • 2 conductive loops of tape connected to wetness detection circuit • 1st comparator input monitors moisture • 2nd comparator detects breaks in the conductive loop

  13. Wetness Detection System

  14. Phidget 8/8/8 Interface Kit • Interface between inactivity monitoring and wetness detection systems with HP Slimline PC • 4 analog inputs for FSR strips • 1 analog input for sampling wetness detection circuit output

  15. Current Status • Wetness detection system • 2 conductive loops, comparator, and 2 9V batteries • Successfully implemented and tested on breadboard • Inactivity monitoring system • 4 Trossen Robotics force sensing resistor strips • Controlled through Phidget 8/8/8 interface kit • Successfully implemented and tested • RFID System • Wavetrend Active RFID Reader/Antenna • Successfully implemented and tested

  16. Technical Specifications Proposed Actual RFID Reader RFID Operating Frequency 13.56 MHz 433 MHz RFID Transmitting Power 1W ± 2 dB N/A Max RFID Reading Distance 1 ft (12 in.)‏ 35 ft. RFID Current Draw Max. 0.5 A Multiplexer Microprocessor PIC18 LF2321 Phidget 8/8/8 Interface Kit Power Supply 3.3  V 2 9V batteries Current Consumption < 5mA Switching Loop-time 16 ms Same Trossen Robotics 24” FSR Force Sensitivity Range 0 to 1000 lbs Same Pressure Sensor Range 1.5 to 150 psi Same Design Specifications

  17. Competing Products Total Care SpO2RT Hospital Bed Secure II Med/Surg Hospital Bed $28,500 $10,000

  18. Part Quantity Unit Cost Total Cost FSR Robotics Sensor Kit 4 $27 $108 Phidget 8/8/8 1 $80 $80 Wires/Cables 1 $15 $15 9V Battery 2 $7.50 $15 RFID Tag and Reader 1 $307 $307 Conductive Tape 75ft $50 $50 Mattress Foam 1 $150 $150 Bed Sheet 1 $30 $30 HP Slimline PC 1 $250 $250 PC Monitor 1 $50 $50 Total Equipment Cost $1,055 Cost

  19. Selling Points • Lower cost • Costs $1,055 • Competitor products cost at least $10,000 • Portable • More versatile • Combines wetness and inactivity detection • Utilizes RFID to prevent improper medication administration • Appealing Graphical User Display

  20. Future Considerations • Use a smaller, cheaper microcontroller such as a PIC • Implement systems on a PCB • Find smaller wrist/ankle band active RFID tags

  21. PIC Microcontroller • Used for integrating wetness detection, inactivity monitoring, and patient identification systems into a low-cost power-efficient package • Low power operation using 3V coin cell battery • Programmed in C via 6-pin header through PICkit2 • RS232 communication to PC using onboard UART • Pushbutton and LED for debugging

  22. PIC for Inexpensive System Integration • RFID • Implement either using RS232 with current reader or SPI enabled reader • Inactivity monitoring • Sample force sensing resistors using onboard ADC • Wetness detection • Sample output of comparators using digital input • LCD for display of system status

  23. Demonstration Plan • Inactivity Detection • Group member lays for extended period of time. • LCD monitor displays inactivity alarm • Patient Identification • RFID tag located within antenna range • LCD monitor displays patient name • LCD monitor displays patient medication barcode • Wetness Detection • Salt water poured on bed • LCD monitor displays wetness alarm

More Related