Abstract: A robot arm apparatus is provided and includes: an arm unit made up of a plurality of links joined to each other by one or a plurality of a joint unit; and a driving control unit that drives the arm unit by controlling driving of the joint unit. If a malfunction is detected in at least one of the joint unit, the driving control unit controls the driving of the joint unit in a state in which a certain restriction is imposed on motion of the arm unit, and drives the arm unit to avoid the malfunction.

Abstract: A medical support arm apparatus including: an arm unit including a plurality of links joined to each other by one or a plurality of a joint unit; and a driving control unit that drives the arm unit by controlling driving of the joint unit. If a malfunction is detected in at least one of the joint unit, the driving control unit controls the driving of the joint unit in a state in which a certain restriction is imposed on motion of the arm unit, and drives the arm unit to avoid the malfunction.

Abstract: Provided is an actuator, including: a motor; and a reduction gear having a breakdown torque that is less than a starting torque of the motor. A limit value in accordance with the breakdown torque of the reduction gear is set with respect to a control value for driving the motor.

Abstract: To provide a jig holding apparatus and medical observation apparatus, which enable linear motion of a jig without increasing the size of a holding mechanism configured to hold the jig. A jig holding apparatus (1) includes: a holding mechanism (100) including a holding section (173) configured to detachably hold a predetermined jig (10) from a periphery of the jig (10), and a linear motion driving section (130) provided around the jig (10) held by the holding section (173) and configured to cause the jig (10) to linearly move.

Abstract: In order to realize a movable mechanism capable of being configured more compactly and also capable of ensuring higher safety. A motor is provided. Also, an electrically active part is provided with an insulating structure so that insulating properties between the electrically active part and one or more conductors near the electrically active part satisfy a certain safety standard regarding medical electrical equipment.

Abstract: [Object] To provide a technology capable of obtaining information for controlling the movements of a robot more appropriately. [Solution] Provided is a control apparatus including: a control section that infers an intention of an external force on a basis of the external force.

Abstract: Provided is a motor. An electrically active part is provided with an insulating structure so that insulating properties between the electrically active part and one or more conductors near the electrically active part satisfy a certain safety standard regarding medical electrical equipment.

Abstract: Provided is an actuator (300) including: a reduction gear (320) that reduces, by a certain reduction ratio, a rotational velocity of an input shaft joined to a rotary shaft of a motor (360), and transmits the reduced rotational velocity to an output shaft (350); a first absolute angle encoder (330) that detects a rotational angle of the input shaft; and a second absolute angle encoder (340) that detects a rotational angle of the output shaft.

Abstract: To make it possible to configure a medical support arm apparatus which does not impair operability for the surgeon, and which is also compact. Provided is a medical support arm apparatus including: an arm section configured so that a medical tool is provided on a front end, and movable axes are arranged so that the arm section has at least six degrees of freedom. Among the movable axes, a movable axis provided on the front end side that prescribes an attitude of the medical tool is a passive axis that rotates by following an external force, and at least one axis provided on a base end side that prescribes a position of the medical tool is a drive axis driven by an actuator.

Abstract: [Object] To detect a rotational angle accurately and also to drive more safely. [Solution] Provided is an actuator (300) including: a reduction gear (320) that reduces, by a certain reduction ratio, a rotational velocity of an input shaft joined to a rotary shaft of a motor (360), and transmits the reduced rotational velocity to an output shaft (350); a first absolute angle encoder (330) that detects a rotational angle of the input shaft; and a second absolute angle encoder (340) that detects a rotational angle of the output shaft.

Abstract: The present invention aims to make it capable of holding organs more safely. Provided is a medical support arm apparatus, including: an arm unit (510) whose driving is controlled by force control; and a retractor, provided on a front end of the arm unit (510), that holds an organ of a patient during surgery.

Abstract: [Object] To enable greater compactness and also to be capable of preventing breakdown more reliably. [Solution] Provided is an actuator, including: a motor; and a reduction gear having a breakdown torque that is less than a starting torque of the motor. A limit value in accordance with the breakdown torque of the reduction gear is set with respect to a control value for driving the motor.

Abstract: There is provided a medical support arm device including a multi-joint arm having a distal end configured to host a medical device, said multi-joint arm configured to have a higher degree of freedom than a degree of freedom necessary for controlling a spatial position and pointing direction of the medical device. The multi-joint arm is configured to controllably displace at least one of a plurality of joints of the multi-joint arm while the spatial position and the pointing direction of the medical device are controlled.

Abstract: There is provided a medical support arm device including a brake provided in at least one joint of a plurality of joints that define a deployment configuration of a multi-joint arm, and configured to release a rotation shaft of the at least one joint when electricity is supplied to the multi-joint arm and lock the rotation shaft when electricity is not supplied to the multi-joint arm.

Abstract: [Object] To realize a movable mechanism capable of being configured more compactly and also capable of ensuring higher safety. [Solution] Provided is a motor. An electrically active part is provided with an insulating structure so that insulating properties between the electrically active part and one or more conductors near the electrically active part satisfy a certain safety standard regarding medical electrical equipment.

Abstract: A robot arm apparatus according to the present disclosure includes: one or a plurality of a joint unit that joins a plurality of links constituting a multi-link structure; an acquisition unit that acquires an on-screen enlargement factor of a subject imaged by an imaging unit attached to the multi-link structure; and a driving control unit that controls driving of the joint unit based on a state of the joint unit and the enlargement factor.

Abstract: [Object] To calibrate an internal model more efficiently and more precisely. [Solution] Provided is a robot arm apparatus including: an arm unit made up of a plurality of links joined by one or a plurality of a joint unit, the arm unit being connectable to an imaging unit. An internal model including at least geometric information about the arm unit and focus position information about the imaging unit is updated using internal model information acquired in a state in which the imaging unit is pointed at a reference point in real space.

Abstract: [Object] To enable further improvement in user convenience. [Solution] Provided is a robot arm apparatus including: an arm unit made up of a plurality of links joined to each other by one or a plurality of a joint unit, the arm unit being connectable to an imaging unit; and a drive control unit that controls driving of the arm unit by causing each joint unit to be driven cooperatively. The drive control unit uses relative position information of a reference position with respect to the arm unit, the relative position information being based on a state of the arm unit and distance information about a distance between the imaging unit and the reference position, to control the driving of the arm unit in a manner that the reference position is positioned on an optical axis of the imaging unit.

Abstract: A medical support arm apparatus including: an arm unit including a plurality of links joined to each other by one or a plurality of a joint unit; and a driving control unit that drives the arm unit by controlling driving of the joint unit. If a malfunction is detected in at least one of the joint unit, the driving control unit controls the driving of the joint unit in a state in which a certain restriction is imposed on motion of the arm unit, and drives the arm unit to avoid the malfunction.

Abstract: [Object] To detect a rotational angle accurately and also to drive more safely. [Solution] Provided is an actuator (300) including: a reduction gear (320) that reduces, by a certain reduction ratio, a rotational velocity of an input shaft joined to a rotary shaft of a motor (360), and transmits the reduced rotational velocity to an output shaft (350); a first absolute angle encoder (330) that detects a rotational angle of the input shaft; and a second absolute angle encoder (340) that detects a rotational angle of the output shaft.