1. Safety Protection Structure Suitable for Medical Scenarios (Compliant + Disinfection-Resistant + Compact)

　　1. Medical-Grade Materials and Disinfection-Resistant Design

　　Biocompatible and Safe Materials:

　　The housing is made of a UL94 V-0 flame-retardant PC+ABS composite material that complies with ISO 10993-5 biocompatibility standards (non-sensitizing and non-irritating), eliminating safety risks associated with medical staff and patients. The surface is sprayed with a medical-grade disinfectant-resistant coating (resistant to daily wiping with 75% alcohol and chlorine-containing disinfectants) and has been shown to withstand 1,000 wipes without coating flaking or material brittleness, making it suitable for frequent disinfection in hospital wards and clinics.

　　Liquid and Dust Resistance:

　　The device boasts an IP44 protection rating (dustproof and splashproof). Silicone waterproof seals are installed around the input and output ports to protect against splashes during medical cleaning (e.g., residual liquid left when wiping the device). Built-in moisture-proof insulation (temperature resistant -20°C to 60°C) prevents condensation and short circuits in the internal circuitry caused by the humid environment of the ward, ensuring continuous operation.

　　2. Compact Installation for Medical Equipment

　　Compatible with both desktop and wall mount options:

　　Measuring 90 × 50 × 35 mm (length × width × height), weighing ≤180 g, and occupying a mere 157.5 cm³, the device can be placed directly on a desktop next to a monitor or blood glucose analyzer, or wall-mounted using the two Φ4 mm mounting holes on the back (compatible with the side rails of medical equipment carts), eliminating the need for additional space. The device's corners feature an R3 rounded design to prevent scratches and bruises during operation.

　　Medical-Grade Cables and Connectors:

　　The standard 2-meter pure copper DC output cable (1.0 mm² diameter, flexible and easy to bend, and sterilization-resistant) features a 5.5 x 2.1 mm DC connector for medical devices (with a lock-out latch and a pull force of 15N or higher after insertion to prevent accidental disconnection and device power outage) on one end. The other end uses a medical-grade terminal (securely crimped, eliminating the risk of loose wires). The input cable is a 1.5-meter two-core medical power cord (compliant with the IEC 60320 C13 plug standard) compatible with hospital-grade medical outlets (with grounding protection).

　　II. Core Performance (IEC 60601 Compliance + Low Ripple + Medical-Grade Stability)

　　1. IEC 60601 Medical Safety Certification Core Features

　　Basic Safety and Electric Shock Protection:

　　Complies with IEC 60601-1:2018, the basic safety standard for medical electrical equipment, and employs a "double insulation + reinforced insulation" design (creepage distance ≥ 8mm, clearance ≥ 6mm). Ground leakage current is ≤ 100μA, and patient leakage current is ≤ 10μA (well below the standard limits of 500μA/100μA), minimizing the risk of electric shock to patients and medical staff. A built-in medical-grade safety fuse (5A breaking current, response time ≤ 10ms) quickly disconnects the circuit in the event of an overload.

　　EMC Medical Compliance (EN 60601-1-2):

　　Meets electromagnetic compatibility requirements for medical devices, with radiated interference ≤30dBμV/m (30MHz-1GHz), conducted interference ≤48dBμV (150kHz-30MHz), and meets immunity standards (no faults with electrostatic discharge ±8kV contact discharge and no performance degradation with electrical fast transients ±2kV). This product also avoids interference with signal acquisition from precision medical equipment such as ECG monitors and electrocardiographs (e.g., preventing noise in ECG waveforms).

　　2. 5V 3A Precision Output with Ultra-Low Ripple

　　Power and Voltage Stability:

　　The input is compatible with a wide 100-240V AC voltage range (50/60Hz), compatible with global hospital power grids (e.g., 220V in China and 110V in Europe and the United States). The output is 5V DC constant voltage + 3A constant current (rated power 15W), with a voltage accuracy of ±0.5% (output fluctuation ≤0.025V when the load varies from 0.5A to 3A), fully meeting the power requirements of small medical devices (e.g., 3-5W blood glucose analyzers, 8-12W portable ultrasound probes, and 5-8W infusion pumps).

　　Ultra-low ripple to prevent signal interference:

　　Adopting a five-stage filtering design (electrolytic capacitors + ceramic capacitors + common-mode inductors + differential-mode inductors + LDO secondary voltage regulation), the output ripple is ≤2mVp-p (far below the 5mVp-p upper limit required for medical equipment), and the ripple rejection ratio is ≥80dB (at 50Hz/60Hz power frequency). When powering a blood glucose analyzer, the blood glucose error is ≤0.1mmol/L (no ripple-induced data drift). When powering an ECG monitor, the ECG waveform is free of ripple and noise, and the waveform recognition accuracy is ≥99.9%.

　　3. Medical-Grade Protection and Continuous Operation Reliability

　　Four-fold safety protection (suitable for unattended operation):

　　Short-circuit protection: When the output shorts, the current is limited to ≤4.5A within 8ms. The device automatically recovers after the fault is resolved (no manual reset is required, preventing data loss caused by powering off and restarting the medical device).

　　Overvoltage protection: Automatically limits the voltage when the output voltage is ≥5.5V to prevent breakdown of precision chips on the medical device motherboard (such as the signal processing chip in diagnostic equipment).

　　Overcurrent protection: Gradually reduces the output when the load current is ≥3.3A to prevent overload when multiple devices are connected in parallel (such as powering a blood glucose meter and a small printer simultaneously).

　　Reverse polarity protection: No current is output when the positive and negative polarity of the output terminal are reversed, protecting the power connector of medical devices (such as the dedicated connector of a portable ultrasound probe) from damage.

　　Wide Temperature Range and Long Life Operation:

　　The operating temperature range is -10°C to 55°C (covering hospital wards, emergency rooms, ambulances, and other scenarios). It starts up without delay at -10°C and can operate continuously at full load for 72 hours at 55°C with output parameter drift ≤1%. Core components utilize medical-grade, high-temperature-resistant models: 125°C long-life electrolytic capacitors (lifespan ≥10,000 hours) and -55°C to 150°C metal film resistors. Full-load MTBF (mean time between failures) is ≥80,000 hours, equivalent to over nine years of stable use in 24-hour medical operation.

　　III. Medical Device Applications (Diagnosis + Monitoring + Treatment Assistance)

　　1. Core Scenario: Powering Small Diagnostic and Monitoring Devices

　　Portable Diagnostic Devices (Blood Glucose/Oximeter Analyzers):

　　Provides a stable, low-ripple 5V power supply for blood glucose analyzers. The ultra-low ripple prevents signal interference in the detection circuit, ensuring accurate blood glucose readings (error ≤ 0.1 mmol/L). The 2-meter-long cable is suitable for handheld operation by medical personnel (e.g., bedside blood glucose measurement). The disinfectant-resistant coating can be wiped directly with alcohol to prevent cross-infection. When fully charged, it can continuously power the analyzer for 8 hours (with the device's built-in battery), meeting peak outpatient usage.

　　Small Monitoring Devices (Portable ECG Monitors):

　　Suitable for auxiliary power supply of bedside monitors (such as powering the monitor's blood oxygen module and heart rate module). The 5V 3A power reserve can simultaneously drive both the module and the data storage unit. IEC 60601 certification ensures leakage current safety, eliminating the risk of electric shock when the patient touches the monitor. Low-ripple output prevents interference with ECG signal acquisition, ensuring a noise-free monitoring waveform and a heart rate monitoring error of ≤1 beat/minute.

　　2. Extended Applications: Treatment Assistance and Mobile Healthcare

　　Treatment Assistance Devices (Infusion Pumps/Syringe Pumps):

　　Provides continuous and stable power to small infusion pumps. The 5V voltage ensures uniform speed operation of the pump motor (infusion accuracy error ≤±5%), preventing infusion rate fluctuations caused by unstable power supply. Overcurrent protection prevents current overload in the event of pump tube blockage, and short-circuit protection protects against circuit shorts caused by accidental liquid splashes, ensuring safe and uninterrupted treatment.

　　Mobile Medical Equipment (Ambulance Emergency Equipment):

　　Compatible with portable emergency equipment in ambulances (such as defibrillator auxiliary modules and small ventilators), the 100-240V wide-voltage input can be powered by the ambulance inverter (compatible with 12V to 220V inverters). The wide-temperature design withstands the ambulance's winter temperatures (-10°C) and summer sun (50°C), ensuring stable power supply during emergency treatment and preventing malfunctions caused by environmental changes.

　　IV. Medical-Grade Maintenance and Compliance Assurance

　　1. Low-Maintenance Design for Medical Scenarios

　　Status Visualization and Quick Troubleshooting:

　　Equipped with a dual-color LED indicator (blue = normal output, red = fault/protection), medical staff can easily determine the power supply status without specialized tools. (If the device is unresponsive, first check whether the adapter indicator is normal.) The housing is clearly labeled with "IEC 60601 certification mark, input and output parameters, and leakage current level," complying with medical device management regulations and facilitating regular inspections.

　　Disinfection-Resistant and Zero-Consumable Maintenance:

　　The fanless, natural heat dissipation design (through an aluminum heat sink and housing, with a heat sink area ≥ 18 cm²) eliminates wearing parts (no fans, no relays). Quarterly cleaning of the housing's heat dissipation holes with compressed air is required to prevent dust accumulation, resulting in near-zero annual maintenance costs. Its disinfection-resistant design meets hospital infection control requirements and allows integration into diagnostic and treatment workflows without the need for additional protective equipment.

　　2. Medical Compliance and After-Sales Support

　　Complete Certification System:

　　The device is certified to IEC 60601-1:2018 (Basic Safety), IEC 60601-1-2:2014 (EMC), CE Medical Certification (MDR Class I), and NMPA (China Medical Device Registration). It complies with RoHS 2.0 environmental standards and provides a complete certification report (including leakage current testing, EMC testing, and biocompatibility testing data) to meet hospital equipment procurement compliance reviews.

　　Medical-Grade After-Sales Guarantee:

　　We offer a 5-year full-unit warranty (including free replacement for disinfection damage and short-circuit failures), 24/7 dedicated medical equipment customer service (supporting remote troubleshooting, such as guidance on identifying abnormal leakage current and excessive ripple). We also support bulk customization (such as extending the output cable to 5 meters, imprinting the hospital logo, and adapting to specialized medical device interfaces), meeting the centralized procurement needs of hospitals and the power supply needs of specialized equipment.

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