What Are Medical Ultra-Fine Coaxial Cables?
Ultra-fine coaxial cables are specialized cables designed for high-frequency signal transmission in compact environments. Unlike standard coaxial cables, they feature:
Microscopic Diameters: Ranging from 0.1mm to 0.5mm, enabling integration into minimally invasive tools and wearable devices.
Multi-Layer Shielding: Despite their size, they retain robust EMI/RFI shielding using advanced materials like silver-plated copper or aluminum foil.
Medical-Grade Materials: Biocompatible, sterilizable, and resistant to chemicals, bodily fluids, and temperature extremes.
Key Characteristics of Medical Ultra-Fine Coaxial Cables
1. High-Frequency Signal Integrity
Bandwidth: Support frequencies up to 40 GHz, essential for high-resolution imaging (e.g., endoscopic cameras, ultrasound probes).
Low Signal Loss: Precision insulation materials (e.g., PTFE, FEP) minimize attenuation, even in long, flexible cables.
2. Flexibility and Durability
Bend Resistance: Engineered to withstand repeated bending without performance degradation—critical for robotic surgical arms or catheters.
Abrasion Resistance: Reinforced jackets protect against damage during insertion or movement in dynamic medical environments.
3. EMI/RFI Shielding Efficiency
Triple-Layer Shielding: Combines braided shielding, foil wrapping, and dielectric insulation to block interference from MRI machines, electrosurgical tools, and wireless devices.
Grounding Compatibility: Designed to integrate seamlessly with medical device grounding systems, ensuring patient safety.
4. Biocompatibility and Sterilization Compliance
ISO 10993 Certification: Safe for prolonged contact with human tissue, meeting strict regulatory standards.
Autoclavable: Withstand high-temperature sterilization (up to 135°C) without degrading insulation or shielding.
5. Lightweight and Space-Saving Design
Ideal for portable or implantable devices like pacemakers, neurostimulators, and wearable glucose monitors.
Applications in Modern Medical Devices
1. Minimally Invasive Surgical Tools
Endoscopes and Laparoscopes: Transmit real-time HD video from internal cameras to external monitors.
Catheter-Based Systems: Used in ablation catheters for cardiac arrhythmia treatment, delivering precise RF energy.
2. Diagnostic Imaging Equipment
Intravascular Ultrasound (IVUS): Ultra-fine cables enable high-resolution imaging inside blood vessels.
OCT (Optical Coherence Tomography): Integrate with fiber optics for 3D imaging of tissues during procedures.
3. Wearable and Implantable Devices
Continuous Glucose Monitors (CGMs): Transmit data wirelessly via ultra-fine coaxial antennas.
Neurostimulators: Deliver electrical impulses to nerves with minimal cable bulk.
4. Robotics and Telemedicine
Surgical Robots: Ensure low-latency communication between robotic arms and control systems.
Remote Monitoring Systems: Enable real-time data transfer from ICU devices to centralized hubs.
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