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USER MANUAL DO-LBL-06035(L)
| MyoVista® Wavelet ECG (
wav
ECG™) 12-Lead Cardiac Testing Device
MyoVista Operations
Initial Software Configuration
Initial device configuration and software setup by an authorized representative are highly
recommended . The initial configuration of the device must include the following steps, which are
performed from the Settings screen:
1 . Configure the language to the applicable setting for the user’s geographic location (page 94) .
2 . Configure the date and time to the applicable settings for the user’s geographic location (page 67) .
3 . Configure the ECG settings for the appropriate AC power frequency for the user’s geography (page 90) .
Note: Before use, configure the Test Length and Filter settings. It is recommended that you
find the electric utility/mains frequency of your country/region and set filters appropriately.
For example, North America users should set the Frequency Interface to 60 Hz, while users in
Europe should set the Frequency Interface to 50 Hz.
Note: For convenience in setting up multiple devices with settings for a given geographic
location, please refer to section 6 (or page 84) for instructions on using the “Settings
Migration Assistant” feature.
Caution: Myoelectricity Noise Filters - The MyoVista Device provides “muscle noise filtering”
capability that reduces higher frequency content to reduce or eliminate muscle noise
produced by patients under certain conditions. The selectable bandpass noise filters are
designed to attenuate frequencies above the selected frequency. While these filter settings
have little to no impact on the conventional 12-lead ECG recording and the Glasgow
Interpretive Analysis, MyoVista
wav
ECG Information are quite sensitive and depend on
processing the composite myocyte activity that is present in the ECG signal to reliably
perform computations required for MyoVista Information. HeartSciences has determined
that for myoelectricity settings of 75Hz or higher, there is no significant impact on MyoVista
Informatics. For filter settings at frequencies of 45 Hz or below, the performance of MyoVista
Informatics may be degraded and it is possible that a patient’s test results may be affected.
When muscle noise is present during patient testing use myoelectricity settings at 100 Hz or
75 Hz. If substantial muscle noise is present and lower filter settings of 45 Hz or below are
necessary be aware patient results may be affected. The 50Hz and 60Hz line filters do not
impact MyoVista Information or conventional ECG recordings.
Built-In Battery
The MyoVista Device contains a built-in rechargeable battery . The device can be operated either from
the AC power adapter or from the battery .
The battery should be
fully charged
prior to the first
use on battery power .
Also, note that the battery will provide power for a maximum of one hour .
HeartSciences recommends keeping the device plugged into AC power .
Note: The MyoVista Device ships with the screen set at a nominal brightness. Increasing the
screen brightness setting will impact battery performance.
Note: The MyoVista Device must be in the power “on” status to receive a charge from AC
power.