US 11,653,826 B2
Medical observation system, control method, and program in which illumination light is controlled in accordance with a usage state of an image sensor
Hiroshi Ushiroda, Tokyo (JP); Naobumi Okada, Tokyo (JP); and Kenji Hirose, Tokyo (JP)
Assigned to SONY OLYMPUS MEDICAL SOLUTIONS INC., Tokyo (JP)
Appl. No. 16/494,774
Filed by Sony Olympus Medical Solutions Inc., Tokyo (JP)
PCT Filed Feb. 16, 2018, PCT No. PCT/JP2018/005585
§ 371(c)(1), (2) Date Sep. 17, 2019,
PCT Pub. No. WO2018/179982, PCT Pub. Date Oct. 4, 2018.
Claims priority of application No. JP2017-063367 (JP), filed on Mar. 28, 2017; and application No. JP2018-010962 (JP), filed on Jan. 25, 2018.
Prior Publication US 2020/0037864 A1, Feb. 6, 2020
Int. Cl. A61B 1/06 (2006.01); A61B 1/04 (2006.01); A61B 1/00 (2006.01); G06T 7/00 (2017.01); G02B 21/12 (2006.01)
CPC A61B 1/0655 (2022.02) [A61B 1/00006 (2013.01); A61B 1/000096 (2022.02); A61B 1/00188 (2013.01); A61B 1/00193 (2013.01); A61B 1/042 (2013.01); G06T 7/0012 (2013.01); G02B 21/12 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medical observation system comprising:
an image sensor configured to capture an object and generates an image signal;
a light source configured to output illumination light in a capturing direction of the image sensor;
a determining circuit configured to determine a usage state of the image sensor;
a support configured to hold the image sensor and the light source and movably support the image sensor and the light source;
a first-mode setting circuit configured to set, in the medical observation system, any one of an electric visual-field move mode, in which a capturing visual field of the image sensor is changeable in upward, downward, leftward, and rightward directions by fixing a part of axes of joints included in the support and moving a different axis in accordance with a command input from outside, and an all-free mode in which the capturing direction of the image sensor is changeable by allowing rotation of the image sensor about the axis of any joint;
a driving control circuit configured to control driving of the support in accordance with a setting of the first-mode setting circuit; and
an illumination control circuit configured to control illumination light emitted by the light source based on the usage state determined by the determining circuit and, on condition that light is being output by the light source and on condition that the first-mode setting circuit has set the all-free mode and the usage state indicates that the image sensor is outside an adjustment target range, control the illumination light emitted by the light source to be turned off or reduced.