Apps Ottobock Myo Plus Pattern Recognition App User Guide
- June 4, 2024
- APPs
Table of Contents
Apps Ottobock Myo Plus Pattern Recognition App
Introduction
Myo Plus pattern recognition is a sophisticated, state-of-the-art control system, that provides intuitive control and real-time app feedback for individuals using trans-radial myoelectric prostheses. Control is established via the system’s adaptation to the user’s natural phantom movements, allowing for direct access to each individual prosthetic motion. Direct access alleviates the cumbersome switching events that are required with conventional control to access wrist rotation or different grip patterns of the bebionic hand. This results in smooth, uninterrupted prosthetic movements without having to concentrate on difficult and unnatural myo signal patterns to fit the limited control strategies of conventional control. By contrast, Myo Plus is a superior option that adapts to individual needs without these previous limitations. During an initial training session, the user chooses the most convenient phantom movements to assign to each prosthetic function. After these movement patterns are established, the user can continue to fine-tune the system through real-time information and feedback in the Myo Plus app.
What’s New
We launched MyoPlus in North America in January of 2020 and have received very positive feedback from clinicians and users across the continent. We listened to their feedback and are excited to share some updates to the system. This update includes both a software and a hardware update.
Update Summary
- Myo Plus App Updates – Interface and Features
- Improved Myo Cuff & new cable connections for demo, training, and therapy
- Reduced Standby Power consumption
- Hot Plug-In / Analog compatibility
Myo Plus App Updates
- Old firmware version: 323-4, 1.0.1
- New firmware version: 323-4, 1.2.7
Android systems
- Google Play Store: Click HERE Myo Plus – Apps on Google Play
- Requires Android 5.1 and up
iOS devices
- Apple App Store: Click HERE Myo Plus on the App Store (apple.com)
- Requires iOS 10.0 or later
NEW Menu: Clinician Settings
After the Clinician log-in, the app automatically navigates to the clinician
settings menu for improved navigation.
Basic Set Recoding Improvements
The pause time between recordings can be adjusted between 2 – 10 seconds for
more flexibility based on user and/or clinician comfort.
Recording View
In Clinician mode, you have the choice between seeing the Spiderplot versus
the movement picture during recording. The movement picture prompts the
correct gesture/pattern during recording. The Spiderplot view is helpful for
the clinician to monitor that the same movement pattern chosen during initial
pattern discovery is being used for the recording. This ensures pattern
consistency for reliable prosthetic control. A smaller movement picture will
then also be displayed below the recording circle to prompt the correct
movement pattern.
Automatic Detection of Plugged-In Electrodes
Myo Plus will automatically detect the number of plugged-in electrodes and
display them in the Clinician settings, rather than defaulting to 8 as the
only option. Plus, the shape of the Spiderplot changes according to the number
of electrodes used (black = active electrode contact).
Electrode Error Notifications
If the electrodes are not connected correctly, or the total number used
doesn’t match what was inputted in the settings, an error message will notify
the clinician: “The number of recognized electrodes does not match the number
of electrodes specified in the settings.” The lowest number ports in the TR
unit should always be used when using less than 8 electrodes.
NEW Feature: List of Recording
A list of recordings can be found in the menu “Add Pattern” below the
selection of movements. Any recordings added outside of the basic set will be
displayed. Images of added movement patterns appear to easily see what’s
included in each recording. The additional recordings can also be easily
deleted to make room for more recordings. The system can store up to 30
recordings total (6 used for the Basic Set, 24 additional recordings can be
added). Additional recordings provide more information to the system, which
results in more accurate control.
Locked Recordings
Clinicians can lock recordings to prevent the user from inadvertently deleting
them.
Improved Display Options
You can now choose to see the Spiderplot or the Movement picture during
training. A smaller picture of the movement pattern is also displayed beneath
the pause time bar when using the Spiderplot option. This is helpful
additional visual feedback when in Spiderplot view, particularly for the user.
Improved Security: New Password Criteria
Password criteria now require a minimum of 8 characters and a combination of
capital letters, lower case letters, numbers, and special characters. After 5
failed log-in attempts, the account is locked for 30 seconds. For Android use,
“location permission” must be granted for the first Bluetooth connection.
NEW Feature: Myo cuff can be connected to a demonstration prosthesis
The use and connection of our tabletop demo stands are now officially
incorporated into the app. In the Myo Cuff menu, tap the “connect” button and
turn on the dome within 15 seconds.
Myo Plus Hardware Updates
Myo Cuff fabric: Now labeled
The blue fabric covering on the Myo cuff is now labeled to make a proper
application on the residual limb easier. Put on the Myo cuff so that the hand
symbol is legible from the user’s point of view. Then rotate the Myo cuff so
that the ulna lies between electrodes 1 and 8 (Electrode no. 1 should be
positioned laterally so that the electrode number increases in the medial
direction).
NEW: Myo Plus cuff can now be attached/detached from the demo prosthesis
New cabling allows the Myo Plus cuff to be attached or detached from the demo
dome directly by the Clinician. This makes the cuff more mobile and easier to
for therapy or training beyond the initial demonstration or basic set
recording. Detailed instructions to attach and detach the new cables from the
demo dome will be included in the updated Myo Plus quick guide and IFU.
Reduced Standby Power Consumption
The improved design has reduced the total power consumption during normal use
(without active Bluetooth connection) by 23% (21mA to 12mA).
Hot Plug-In / Analog Mode (Increased Compatibility of Terminal Devices)
Analog Mode: Myo Plus will now recognize devices that operate on an analog
signal. This means the system will now recognize devices beyond the bebionic
by Ottobock or Myo Bock terminal devices. The functionality will be limited —
operation will revert to methods required in standard 2-site electrode
control. The user will be able to pronate/supinate the wrist rotator and
open/close the terminal device using established movement patterns. To switch
grip patterns in a multigrasp hand, they will have to perform whichever
switching event is programmed in the hand. Co-contraction will not be
recognized as a switching mechanism for any terminal device. This
functionality will be useful for simple secondary devices like an electric
hook or with a back-up terminal device. Hot Plug-In: You can now connect or
change the terminal device without switching the system on/off. Previously,
the hand would close and then no longer operate.
Compatibility with Non-Ottobock Devices
Myo Plus should only be used with components and batteries that have been
tested and approved for use. Myo Plus should only be used for its intended
purpose and within the technical specifications as indicated in the
instructions for use. No risk analysis or testing was performed on non-
Ottobock devices. Use of a non-Ottobock device is considered off-label and
therefore, Ottobock cannot be held responsible.
Tech Tip: Make sure the terminal device is connected to the prosthesis before powering on the system. If the terminal device is connected to the prosthesis after powering on, wrist rotation and open/close functions are active, but additional grip patterns of the bebionic hand cannot be recognized.
Please refer to our website for updated marketing materials and the Myo Plus certification course.
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>