Micro-Surgical Suturing Robot StitchBot Receives FDA Approval: Suturing Precision Reaches 0.1mm
StitchBot is a desktop surgical suturing robot achieving 0.1mm precision in microsurgery, significantly reducing operation time and human error.
US surgical robot company StitchTech announced on February 25 that its micro-surgical suturing robot StitchBot has received FDA 510(k) clearance. Designed specifically for microsurgery, the device can automatically suture blood vessels and nerves under 0.3mm in diameter.
StitchBot uses a dual-arm collaborative architecture — one arm holds the needle and thread while the other handles puncture and knot-tying. The system achieves 0.1mm motion precision and sutures three times faster than human surgeons. Built-in force feedback sensors detect tissue tension and automatically adjust suture force to prevent tissue tearing.
In clinical trials involving 400 finger reattachment surgeries, the StitchBot group achieved a vascular patency rate of 98.5% compared to 95.2% for human surgeons. Operation time was reduced by an average of 40 minutes.
StitchBot is priced at $850,000 and is currently in use at 15 hand surgery and plastic surgery centers across the United States.
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