Mobile Heart Monitoring System Interface Design

Role: Interface designer. User’s guide writer. Functional testing.

Work completed as an employee of BCA.

The Mobile Monitoring System is a holter device designed to be utilized when ultra-portability is needed. This system incorporates a cell phone that can transmit ECG data to a doctor to view before the patient returns to the office. Data is sent on the patient’s prompt or if the patient is experiencing a condition that has parameters programmed into the device.

The design of the device’s interface took into consideration both the accuracy of the set up in the doctor’s office and the ease of use for the patient.

Technician Screens//Setup

The setup screens are used by a trained technician. The technician verifies the accuracy of the information uploaded to the device during the office visit. The design of the screens is simple to allow key pieces of information to be quickly verified. During this initial setup the technician can also send out a test email, preview the ECG graphs on the device screen, and after everything is checked start recording a new monitoring session.

Patient Screens//Status and Event Screens

After the recording has begun, the patient will leave the office wearing the holter anywhere from one to seven days. The patient only has access to two screens and very limited commands. This is intentionally kept very simple so not to cause a potentially ill patient additional anxiety. Besides checking the status screen, the patient can also send an event with selected symptoms.

On Power Up//Flow Chart and Initial Screens

Illustrating the potential power up screens for the client was fundamental in developing an easy to use interface. The flow chart shows the events that occur on device power up. Depending on the state the device was in before powering down determines what will be displayed on the screen when powered up.