Digital Pen AND Patient
Tracking System
CMAX Work Flow
A disaster
generates mass
casualties
Digital pens capture
patient triage data
Digital pen transmits
triage data to system
Triage data is available
through BHEPP network
Transfer patients to
different hospitals
Patient Tracking Tag
is assigned
Separate Systems but all are linked
together
Total Patients
Triaged: 186
Burn ….. 17
ICU……36
Pediatric…13
Surgical…..24
Data reports are
available for
emergency personnel
2
Digital Pen Overview
• The pen – Writes normally but captures pen
strokes via a tiny camera and pressure sensors.
• The paper – Each form has unique pattern of dots
telling the pen where it is on the page.
• The transmission & communications – Transmits
through mobile devices or docked with PCs to
networks.
• The software – Provides character recognition, data
conversion, data validation, data correction, & others.
• Integration – Integrates data in to back end applications.
3
Digital Pen
• Multiple vendors (Nokia, Logitech, Hitachi,
Maxell..)
• Camera takes 50+ pictures per second
• Store up to 50 Letter size pages of handwritten
data
• Battery life limited to:
– Around 5 hours of continuous use
– More than 24 hours if capped
– Weeks if capped and stored
• Pen strokes are not recorded if:
– Using in an extremely dark environment
– Using paper that is significantly wet
– Using paper that has been ripped, smudged,
or crinkled excessively
4
Digital Form - Dot Pattern
• 2D dot pattern
• Pattern of 6x6 dots provide
coordinates for pen
• ~ 465K dots per sheet
• Patented by Anoto of Sweden
5
Digital Form – Triage Form
6
Form Design & Generation
Sample
Forms/Ideas
Form
Designer
Digital Form
Templates
7
Form Processing
Data Capture
Form Processing
Data Transmission
•
•
•
•
Patient DB
Analysis & mapping
Handwriting recognition
Interpretation
Verification & correction
Information Integration
• Application integration
• Display/reporting
• Storage
8
How Digital Pen Is Used
9
Digital Pen Summary Report
10
Patient Tracking System
• Challenge – How to track the location of patients after their
initial assessment at the triage site. Patients may be moved to
different locations within an emergency care facility as they are
queued, treated, and monitored. Patients may also be moved
between facilities/hospitals, in order to obtain needed specialized
medical resources, or to balance loads.
• Purpose – It will track patients locations as patients are moved
around one of the facility/hospital, or between facilities/hospitals.
It helps determining room/bed availability, knowing if a patient has
recently been registered, treated, or why he/she is waiting, and
monitoring a patient’s total time in care.
It helps improvement of decision-making regarding patients care,
transportation/equipments, resource allocation, and incident
management.
11
Patient Tracking System -Flow
Patient Info (Last Name,
First Name, Category,
Patient ID)
Patient registration
at hospital
Master of Tracking System
Data stores
in database
Patient Tracking System
pulls data (location) every
5 seconds
Database
Patient Tracking System
12
Patient Tracking System Dashboard
System links to
Data Exchange
and Digital Pen
13
Patient Tracking System Category
14
Patient Tracking System –
Dropped Off Tags
15
Patient Tracking System –
Historical Data
16