US 11,653,837 B2
Optical output monitoring device, optical output monitoring method, protective cap, and adapter
Hiroyuki Okada, Hamamatsu (JP); Tsuyoshi Kosugi, Hamamatsu (JP); Yoshiyuki Shimizu, Hamamatsu (JP); and Yohei Takata, Hamamatsu (JP)
Assigned to HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
Appl. No. 16/314,877
Filed by HAMAMATSU PHOTONICS K.K., Hamamatsu (JP)
PCT Filed Jun. 27, 2017, PCT No. PCT/JP2017/023576
§ 371(c)(1), (2) Date Jan. 3, 2019,
PCT Pub. No. WO2018/012280, PCT Pub. Date Jan. 18, 2018.
Claims priority of application No. JP2016-137330 (JP), filed on Jul. 12, 2016.
Prior Publication US 2019/0307330 A1, Oct. 10, 2019
Int. Cl. A61B 5/00 (2006.01); A61B 18/24 (2006.01); G02B 6/42 (2006.01)
CPC A61B 5/0084 (2013.01) [A61B 18/24 (2013.01); G02B 6/42 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A light output monitoring apparatus for monitoring a power of light output from a light emitting end of a catheter incorporating an optical fiber, the apparatus comprising:
a light receiving unit configured to receive light output from the light emitting end of the catheter;
an attachment unit provided at a position opposite to the light receiving unit;
an adapter detachably attached to the attachment unit, fixed in position by being attached to the attachment unit, and including a through-hole; and
a protective cap including an insertion opening provided at a first end and into which a part of the catheter of a predetermined range on the light emitting end side is removably inserted, including a window portion provided at a second end and configured to transmit the light output from the light emitting end of the catheter, removably inserted into the through-hole of the adapter from the second end side, and the protective cap being fixed in position to the adapter by being inserted into the through-hole, wherein
in a state where the adapter is fixed in position by being attached to the attachment unit, the part of the catheter of the predetermined range on the light emitting end side is inserted into the insertion opening of the protective cap, the catheter is removably fixed in position to the protective cap by bringing the light emitting end of the catheter into contact with the window portion of the protective cap, and the protective cap is fixed in position by being inserted into the through-hole of the adapter, an output light power is monitored by causing the light output from the light emitting end of the catheter to pass through the window portion of the protective cap and to be incident on the light receiving unit, and after monitoring the output light power, the catheter is removed from the protective cap.