Auditory ability test device and method based on optical coherence tomography

An auditory ability test device based on optical coherence tomography, the device comprising:

• a main console comprising:
• a light source;
• a light classifier configured to classify light emitted from the light source into reference light and measurement light;
• a coherence signal collector configured to perform conversion of a coherence signal into data, wherein the coherence signal is collected by coherence from reference reflected light and measurement reflected light corresponding to reflection of the reference light and the measurement light, respectively;
• and
• a calculator configured to calculate a 3-dimensional (3D) structure of a hearing organ and measure an auditory ability according to the data;
• a reference end configured to receive the reference light through an optical fiber connected to the light classifier and transmit the reference reflected light generated through a reflector to the main console;
• and
• a measurement end configured to receive the measurement light at one end thereof through an optical fiber connected to the light classifier, and generate a sound inside,
• wherein the measurement end is inserted into the hearing organ through a speculum coupled to an other end, emits the sound and the measurement light, and transmits the measurement reflected light reflected from the hearing organ to the main console.

An auditory ability test method based on optical coherence tomography, the method comprising:

• a measurement preparation step of inserting an auditory ability test device into an auditory canal to transmit a sound and light into a hearing organ through the auditory canal;
• a sound output step of outputting the sound of a preset condition into the hearing organ to induce vibration inside the hearing organ;
• a light output step of splitting the light emitted in a preset condition by the auditory ability test device into reference light and measurement light, and outputting the measurement light into the hearing organ vibrating through the sound output step;
• and
• a reflected light analysis step of receiving measurement reflected light for the measurement light outputted in the light output step and reflected from the hearing organ vibrating in response to the sound, calculating a structure of the hearing organ based on the received measurement reflected light, and measuring a phase change of the measurement reflected light.