Patent ID: 8971999
Filing Date: 2015-03-03
Classification: A61B,A61C

Abstract:
1. An intra-oral scanner comprising: an optical output unit configured to output an output light; an optical output control unit configured to rotate the optical output unit along a first reference axis or to move the optical output unit along a sliding direction parallel to a second reference axis vertical to the first reference axis so as to control an emission position of the output light; an optical system configured to reflect the output light with the emission position controlled by the optical output control unit to a tooth or teeth being scanned; an optical system driving unit configured to rotate the optical system along the second reference axis so as to control a reflection angle of the output light; a guide configured to guide the optical system to move within a preset distance from the optical output unit; an optical sensing unit configured to sense the light reflected by the optical system at the tooth or teeth being scanned and to convert the sensed light into an electrical signal; a data transmitting unit configured to transmit information of the electrical signal, information of the emission position of light and information of the reflection angle to a three-dimensional data generating unit to generate a three-dimensional scanning model for the tooth or teeth being scanned; and an insertion body configured to include the guide, the optical system and the optical system driving unit to guide the intra-oral scanner to be inserted into an oral cavity and to secure a heading path of the output light and the light reflected by the optical system, wherein the insertion body includes a top surface perpendicular to the first reference axis that is in parallel with a direction of being inserted into the oral cavity; wherein the optical output control unit controls the emission position of the output light so as to enable the output light outputted from the optical output unit to head to the optical system along a normal direction of the both first and second reference axes, wherein the guide is connected to the top surface of the insertion body and enables the optical system to translate along the normal direction of the both first and second reference axes, and wherein the optical system reflects the output light that is reflected at the teeth or tooth and transmitted through the optical transmission window to the optical sensing unit.