Secondary Display Unit

1
Secondary Display Unit

• Team Members
• Cara Dunn, Farshad Fahimi,
• Tyler Witt, Nipun Yamdagni

Advisor Willis Tompkins, Ph.D.
Client Michael K. Abernethy, MD, FACEP
2
Overview

• Problem Statement
• Background Information
• Summary of Product Design Specs.
• Output Information
• Visualization
• Design Alternatives
• Future Work

3
Problem Statement

• Output information from an in-flight Propaq
  Monitor (EKG, pulse oximetry, BP) must be
  reproduced on a readily accessible secondary
  screen for Dr. Abernethy and his crew to see.
  Acceptable reproduction methods include a small
  video screen such as those found in vehicle
  entertainment centers, or in the form of a
  wearable CRT. This latter approach projects an
  image in the users peripheral vision.

4
UW Med-Flight Team

• Use Propaq encore 206-EL to monitor the patient
  while in the helicopter to monitor
• EKG
• Blood Pressure
• Heart Rate
• Electrical Activity of the Heart
• Portable to move with the patient

5
Motivation

• Current Propaq monitor is too bulky
• Could become a projectile if helicopter moves
  suddenly
• Propaq must be placed on the ground, but need to
  have the display at eye level
• Client prefers a smaller display to place on his
  kneeboard or other convenient location

6
Other Comparable Devices

• Patents
• 5,751,341
• 6,558,321
• 6,633,658
• Each of these devices unscrambles, reconstructs
  or reproduces images on a secondary screen

7
Network Acuity Port Vidco

• Use Network Acuity port to connect Propaq to
  Vidco box
• Vidco box will output to DV-15 port (standard
  monitor plug)
• Custom helicopter integration

8
Pros and Cons

• Pros
• Pre-existing converter
• Can focus on displays ergonomics

• Cons
• Very expensive (3500)
• Excessive
• Connects up to 16 Propaqs
• Adds additional equipment
• Current Propaq lacks network acuity port

9
Output Data and Interpretation

• Find a way to output data from the Propaq
• Interface the Propaq with a PDA
• Create software to interpret and display the
  outputted data

10
Pros and Cons

• Pros
• Display will be customizable
• Ensure ease of use
• Small
• Fairly inexpensive

• Cons
• Method of implementation is unknown
• Requires computer programming with GUI
• Possible lag between the Propaq screen and the
  PDA screen

11
Splicing

• Identify the wires that go to the display
• Splice each into two output routes
• Use new connection to connect to the secondary
  display

12
Pros and Cons

• Pros
• Secondary display will look identical to the
  Propaqs original display
• Inexpensive
• Display is the only expense

• Cons
• Tedious
• Some may be skeptical about the reliability of
  the altered Propaq
• Unknown cable format in Propaq

13
Design Matrix
14
Eyetop Sunglasses

• Wire connects glasses to control unit which
  receives video input (Upper Right)
• Embedded screen projects image in users
  peripheral vision (Lower Right)
• Audio and video capabilities

15
Fashion Eyewear

• Variety of styles

16
LCD Monitor

• For use with standard video input
• Flip-down monitor would attach to helicopter
  ceiling
• Possible to attach to rotating wall mount for
  multiple viewing angles

Rotating wall mount bracket
Typical LCD screen in flip-down position
17
PDA Monitor

• PDA functions by converting serial data
  reproducing video image
• Small, handheld device could be attached to
  Flight Physicians kneeboard, or even worn on
  wrist for easy access to video screen
• Software required for data conversion unavailable

Wristwatch PDA controlled by voice recognition
18
Design Matrix
19
Future Work

• Further Research
• Combination of design
• Design specifics
• Clients thoughts

20
Any Questions?

• References
• Information Display Systems. Vidco, Inc. Date
  Accessed 14 Feb 2006. http//www.vidcoinc.com.
• US Patent Database. Date Accessed 12 Feb
  2006. http//www.uspto.gov/patft/.