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Infinite Biomedical Technologies Releases HF Version of RFID-Enabled Prosthetic Hand With Locking Capability
The company has developed the morph2 to be a smaller, lighter version of its predecessor, enabling wearers to identify an object and adjust the hand's grip accordingly.
Feb 06, 2017—
Infinite Biomedical Technologies, a Baltimore prosthetic technology company, has released a new version of its morph (Myoelectrically Operated RFID Prosthetic Hand) prosthesis that enables individuals with prosthetic hands to automate their movements with the help of radio frequency identification.
The morph2 brings a new frequency to the technology—high-frequency (HF) rather than low-frequency (LF)—which the company says enables faster transmission, a smaller, lighter design and new functionality. A new, lower-cost alternative to the morph2—known as morph lock—can be locked in place with the tap of an RFID tag against the prosthetic's built-in reader, says Martin Vilarino, Infinite Biomedical Technologies' engineering project manager. "This way," he explains, "the user can grab a delicate object [such as a beverage], lock the prosthesis, and carry on without having to worry about accidentally opening the hand and dropping the object."RFID Helps Amputees Manipulate Prosthetic Hands).
Prostheses can be operated in a few ways. One version, known as electromyography (EMG), uses electrodes to detect and then convert muscle movements to electrical signals that can open and close a hand or vary a grip. However, not everyone can operate the prosthesis properly with the sensor, the company reports—for instance, there may be no suitable location on a person's arm at which electrodes can be fitted to measure muscle movements. In other cases, users must press a button on the prosthesis to switch modes, such as the gripping function—and that is where morph technology provides an added benefit. The system instructs the prosthesis to adjust to the necessary position without requiring directions from the user.
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