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    "headline": "The Needle Robot Sent Force Through Fluid",
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    "dek": "A magnetic-resonance-safe master-slave manipulator combines manual, digital and collaborative control for bedside intervention.",
    "summary": "A magnetic-resonance-safe master-slave manipulator combines manual, digital and collaborative control for bedside intervention.",
    "body_text": "The 2+1-degree-of-freedom system uses elastomeric fluid actuators for remote angulation and low-friction graphite piston cylinders for needle insertion, with sub-newton force transparency and sub-millimeter motion transmission reported over bedside piping lengths. The team demonstrated assisted tissue penetration, virtual fixtures and motion compensation, then reported functional viability in a preliminary in-vivo pig experiment inside an MRI scanner. This is early device research, not evidence of safety or effectiveness in human procedures.",
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    "tags": [
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      "title": "arXiv preprint 2608.06354",
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    "title": "The Needle Robot Sent Force Through Fluid",
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