The bandage also keeps track of the healing process and informs healthcare professionals of any problems in real-time. Wireless, battery-free bandage delivers electrical signals to help wounds heal Bandage monitors healing, streaming data in real-time to a smartphone or tablet After heali
A close-up look at the bandage’s two electrodes: : A tiny flower-shaped electrode that sits right on top of the wound bed and a ring-shaped electrode that sits on healthy tissue to surround the entire wound. Credit: Northwestern University
In addition, the bandage continuously tracks the healing process and dissolves completely, including its electrodes, into the body once it is no longer required. This new invention could be a valuable asset for individuals with diabetes, whose wounds may lead to serious consequences such as limb amputation or death.. It marks the first bioresorbable bandage capable of delivering electrotherapy and the first example of a smart regenerative system.
“Although it’s an electronic device, the active components that interface with the wound bed are entirely resorbable,” said Northwestern’s John A. Rogers, who co-led the study. “As such, the materials disappear naturally after the healing process is complete, thereby avoiding any damage to the tissue that could otherwise be caused by physical extraction.”
The researchers were curious to see if electrical stimulation therapy could help close these stubborn wounds. According to Ameer, injuries can disrupt the body’s normal electrical signals. By applying electrical stimulation, it restores the body’s normal signals, attracting new cells to migrate to the wound bed.“Our body relies on electrical signals to function,” Ameer said. “We tried to restore or promote a more normal electrical environment across the wound.
By building in these capabilities, the device can be operated remotely without wires. From afar, a physician can decide when to apply the electrical stimulation and can monitor the wound’s healing progress.
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