Depiction of a soft robotic device known as a dynamic soft reservoir (DSR)
Image courtesy of the researchers.

Researchers from the Institute for Medical Engineering and Science (IMES) at MIT; the National University of Ireland Galway (NUI Galway); and AMBER, the SFI Research Centre for Advanced Materials and BioEngineering Research, recently announced a significant breakthrough in soft robotics that could help patients requiring in-situ (implanted) medical devices such as breast implants, pacemakers, neural probes, glucose biosensors, and drug and cell delivery devices.

The implantable medical devices market is currently estimated at approximately $100 billion, with significant growth potential into the future as new technologies for drug delivery and health monitoring are developed. These devices are not without problems, caused in part by the body’s own protection responses. These complex and unpredictable foreign-body responses impair device function and drastically limit the long-term performance and therapeutic efficacy of these devices.

One such foreign body response is fibrosis, a process whereby a dense fibrous capsule surrounds the implanted device, which can cause device failure or impede its function. Implantable medical devices have various failure rates that can be attributed to fibrosis, ranging from 30-50 percent for implantable pacemakers or 30

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