Motor drive apparatus and optical imaging apparatus for diagnosis

摘要

A motor drive apparatus includes: a transmission unit carrying-out transmission of an optical signal between a rotation unit for rotating a transmitting and receiving unit and a fixation unit for transmitting reflected light to a control apparatus through a signal line, wherein the transmission unit includes: a tubular shaped lens holding member where a collimator lens is held, and a holding member fixing member having first fixation surface by which the end surface of the lens holding member is fixed and second fixation surface fixed by a surface which is formed to be approximately perpendicular to the direction toward which the optical signal is emanated or the optical signal is light-received; the first fixation surface is formed in a spherical shape; and the second fixation surface is formed to be approximately perpendicular to the direction toward which the optical signal is emanated or the optical signal is light-received.

主权项

1. A motor drive apparatus mounted with an optical probe unit having a transmitting and receiving unit carrying out optical transmission and reception continuously, emanating measurement light while rotating the transmitting and receiving unit, obtaining a reflected light from a biological tissue, which the transmitting and receiving unit receives, from the transmitting and receiving unit while moving in a body lumen in an axial direction and concurrently, transmitting the reflected light with respect to a control apparatus which generates a plurality of cross-sectional images in the axial direction of the biological tissue by using the reflected light, comprising:
a transmission unit carrying out transmission of an optical signal between a rotation unit for rotating the transmitting and receiving unit and a fixation unit for transmitting the reflected light to the control apparatus through a signal line; the transmission unit comprising a rotation side transmission unit and a fixation side transmission unit with both the rotation side transmission unit and the fixation side transmission unit each having a tubular shaped lens holding member in an inside of which a collimator lens for emanating the optical signal or for receiving the optical signal is held; wherein the rotation side transmission unit and the fixation side transmission unit each further include a holding member fixing member having a first fixation surface by which an end surface of the lens holding member is fixed and a second fixation surface configured to be fixed on a surface which is approximately perpendicular to the direction toward which the optical signal is emanated or the optical signal is received; the first fixation surface having a spherical shape, the first fixation surface configured to be slidable with the end surface of the lens holding member for adiusting an optical axis angle of the collimator lens.