All-in-one battery-powered handheld oct system for point-of-care diagnostics

An all-in-one handheld optical coherence tomography (OCT) device, comprising:

• an optical unit provided in a region inside an all-in-one housing;
• a circuit unit provided in another region inside the all-in-one housing and configured to perform signal processing of the optical unit and management of the device;
• and
• a power supply unit equipped with a built-in battery, configured to supply power to the optical unit and the circuit unit and mounted inside the all-in-one housing,
• wherein a main part of the circuit unit is formed into a planar shape elongated in one direction, and
• a light emission assembly is provided on one side of the all-in-one housing and a light source unit is provided on an other side of the all-in-one housing, wherein the light source unit is configured to supply light through the optical unit, and the light emission assembly is configured to emit the light which has passed through the optical unit, and
• the light source unit is connected to the circuit unit with at least one electric wire, and the circuit unit is located superposed onto the optical unit within an inner space of the all-in-one housing,
• wherein a sample optical path sub-system is provided in a direction from the light emission assembly toward a biological tissue to be examined,
• an interferometer comprising a reference optical path sub-system, the sample optical path sub-system and a light separator, and the reference optical path sub-system, the sample optical path sub-system and the light separator are connected to a detector through a cable while being disposed separately from the detector.