Practical Biomonitoring using Wireless Technology
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Transcript of Practical Biomonitoring using Wireless Technology
Practical Biomonitoring using
Wireless Technology
Thomas F. Budinger M.D., Ph.D. Department of Nuclear medicine and Functional Imaging, Lawrence Berkeley National Laboratory; Departments of Bioengineering and Electrical Engineering and Computer
Science, UCB; Department of Radiology, UCSF.
NAE / IOM Workshop“Engineering and the Health Care System” Mar 11-12,, 2003
Health care improvements which require better engineering and in some cases new engineering in the area of monitoring
Concepts of This Presentation
How wireless interfaces can simplify hospital and home care (e.g., pO2, apnea)
What current engineering can do to assist the care-giver
What near future nano-technology might do
If we could do everything or anything, what would we do -- for infants, for home care?
BiomonitoringThree areas of development:
Medical Alert NetworkFallsCardiac arrest Trauma Missing persons
Bio MEMS Devices
Personal Health Status
Medication and Physiologic Status
Home Care System
(No reliable user-friendly system)
(Innovations needed)
(Major contemporary industry)
Patient-centered focus of eHealth
Wellness promotion as part of healthcare continuum which includes illness treatment
Aging population
Forces for Home Telecare
Development of a Home Telecare System
CSIRO Telecommunications and Industrial Physics
Laurie Wilson PhDRobert Gill PhD
Sydney, Australia
Daily on-line measurements
Hospital Without Walls
Vital signs monitoring
Alerts
Activity monitor
Video-conferencing
Visiting nurse
On-line call centre
Distributed, electronic
record
Map display
Receiver
Cell phone on arm band
641 MHz
HAM Radio Transceiver
A customized tracking system for private automobile or a wandering family member can be a major household appliance but currently relies on HAM radio licensed operations.
12:0
0
General concept of a wearable accelerometer or motion detector which allows continuous monitoring of a subjects daily activity as well as detection of a fall. Wireless communication of information can be stored in a local network node or the belt worn transmitter can be used to transmit alert signals or as a relay for actual data.
Illustration of a self contained, wrist worn blood pressure device similar to that marketed by OMRON Inc (~$75 US)
Wrist Blood Pressure
Monitor
12080
PTT
Signals from the ECG and pulse pressure changes provide different physiologic information and can be used together to gain additional data such as the pulse transit time (PTT). Rapid pulse timing can be
from a pulse pressure monitor or from a pulse oximeter in the reflectance mode or conventional transmission mode.
Capsule Endoscope 11mm x 26mm
Data Recorder with Batery pack
which can be downloaded onto laptop computer
Antennae
Wireless endoscopy using a disposable self contained camera in an available capsule (11m x 26mm) which is tracked by an antennae
array fastened to the torso (GIVEN IMAGING Ltd., http://www.givenimaging.com/usa).
Enabling TechnologiesSWAP 2.4 GHz 30 meter range
Bluetooth 2.4 GHz Your home computer to appliance network
HIPERLAN 5.15-5.25 GHz Kilometer range power requirements
Europe
Ultra Wideband (UWB)
Kilometer range, low power, low cost. FCC is a partial barrier
Biomonitoring
Accelerometer
A. Chemistry chip pendant(saliva sampling)
B. Skin electrodes(cardiac & respiratory)
D.
E. Phone / Camera / GPS
F. Chemistry(p02, pCO2, sugar)
G. Local area network
GPS
A
D, E, GD, F, H
C
D
B
Strain guage & Heart Rate MonitorC.
H. Pulse Pressure
Contemporary Activities by OthersDODDARPANSFEmil Jovanov (Univ of Alabama)Laurie Wilson (CSIRO, Australia)Agilent TechnologiesSiemens AGAmbulatory Monitoring Inc.Digital Angele Worldtrack