"Development of its Self-Cleaning Shunt. Micro-robot which can be controlled remotely or within the body.  Its miniature dimensions allow it to navigate and crawl in different spaces within the human body, including blood vessels, the digestive tract and the respiratory system.  Its unique structure gives it the ability to move in tight spaces and curved passages as well as the ability to remain within the human body for prolonged time"

http://markets.businessinsider.com/news/stocks/Microbot-Medical-Inc-Receives-Additional-Government-Grant-for-Development-of-its-Self-Cleaning-Shunt-1007289331

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