The core structure, material selection and production process of medical heating blankets

Core Structure and Material Selection
Multilayer Composite Design: Medical warming blankets typically consist of a gas barrier layer and a breathable layer. The gas barrier layer employs laminated non-woven fabric to prevent heat loss, while the breathable layer utilizes composite non-woven fabric with evenly distributed pores to ensure uniform heat dispersion.

Airflow Channel Optimization: Segmented lines are created within the heating chamber via ultrasonic welding, forming multiple airflow channels. This design ensures even heat distribution across the blanket and enhances heating efficiency.

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Technical Implementation and Functional Integration
Heating and Temperature Control System:

Heating elements (resistance wires, copper foil, or PTC ceramic heating elements) generate heat, while a power-driven air circulation system delivers warm air to the blanket.

Temperature control systems integrate multiple temperature sensors and safety switches for precise regulation and multi-layered protection.

Ergonomic Design:

An arched upper section exposes the patient’s neck for comfort.Customized models (e.g., upper-body, lower-body, full-body blankets) cater to diverse surgical needs and patient anatomies.

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Production Process and Quality Control
Material Processing:

Non-woven fabric undergoes high-frequency wave pressing to form the blanket’s main structure.

Heating elements are integrated with controllers to establish a complete heating circuit.

Assembly and Testing:

Components (heating units, temperature sensors, control circuits) are assembled into the blanket’s main unit.

Airflow volume, temperature stability, and safety features are tested post-connection via air ducts.

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Quality Assurance and Safety Measures
Rigorous Testing:

Parameters such as airflow volume, temperature fluctuation, and noise levels are verified against standards.

Epoxy-sterilized filtration systems ensure air purity.

Safety Features:

Built-in protections: over-temperature shutdown, fan malfunction alerts, and sensor failure alarms.

Mobile cart integration enhances portability and storage convenience for the main unit.