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flag Zhejiang University's Sliputure uses a pre-tied slipknot that releases at precise force, improving robotic surgery accuracy and safety.

flag A team from Zhejiang University has developed Sliputure, a pre-tied slipknot suture that provides tactile feedback in robotic surgery by releasing at a precise force, signaling the robot to stop pulling. flag This simple mechanical solution ensures optimal knot tension with 95.4% accuracy, preventing tissue damage or leaks. flag Tested in animal models, it improved healing and blood flow, and boosted novice surgeons’ accuracy by 121%. flag The system requires no power, sensors, or algorithms, making it low-cost, sterilizable, and suitable for remote settings. flag A scalable production line enables mass manufacturing of ready-to-use sutures. flag The innovation, published in Nature, offers a reliable, hardware-free alternative to complex sensor-based systems.

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