Slip rings are used in medical devices such as nucleic acid rotational separation testers and immune system analyzers, including blood analyzers. Blood analyzers typically require high speed continuous rotational motion to separate blood components, necessitating reliable slip rings for transmitting power, signals, and data.
For blood analyzers, electrical slip rings are the most suitable, as they can transmit power, control signals, and test data. High-end medical equipment may also employ fiber optic slip rings for high-speed data transmission. The rotational separation module in a blood analyzer requires real-time transmission of optical detection data, and fiber optic slip rings meet this requirement.
Medical slip rings must pass FDA Class II certification, and the materials are often medical-grade 316L stainless steel or PEEK polymer. In MRI-compatible equipment, non-magnetic titanium alloy slip rings are required, and non-contact magnetic fluid sealing technology is used to avoid interference with the imaging magnetic field.
Medical equipment has extremely high requirements for the cleanliness, reliability and low noise of gas-liquid slip rings, and is mainly used in the following key components
The gas-liquid mixing slip ring can realize the function of synchronously transmitting cleaning liquid, waste liquid or pneumatic power. The corresponding applicable instrument features a fully automatic analyzer with an integrated liquid circuit system to realize the injection and discharge of liquids from rotating parts.
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