A manipulator includes a mount member, a base member with threaded openings, a coupling member, and an output member with threaded openings. The manipulator also includes three motors mounted to the mount member and three drive trains connected to the motors, respectively.

A robotic arm for flexible operation in three dimensional space is provided. The robotic arm is divided into several arm parts with multiple joints to move the robot arm in three-dimensional space. The length and angle of the different arm parts are adjustable. The functioning of arm parts is controlled by one or more motors. The motors are configured to control a change in length and angle of the arm parts. Based on usage, a motor is used to change the length and two, four, or six motors or even more motors are used to change the angle and adjust an access to the target. The robot is assembled by varying the number of attachable arm parts depending on the direction of movement and the degree or direction of rotation.

An apparatus including a frame, an optical sensor connected to the frame, and an environment separation barrier. The frame is configured to be attached to a housing of a motor assembly proximate an aperture which extends through the housing. The optical sensor comprises a camera. The environment separation barrier is configured to be connected to the housing at the aperture, where the environment separation barrier is at least partially transparent and located relative to the camera to allow the camera to view an image inside the housing through the environment separation barrier and the aperture.

A robot arm and method for using the robot arm. Embodiments may be directed to an apparatus comprising: a robot arm; an end effector coupled at a distal end of the robot arm and configured to hold a surgical tool; a plurality of motors operable to move the robot arm; and an activation assembly operable to send a move signal allowing an operator to move the robot arm.

An actuatable joint for a robotic system has a body, a motor positioned in the body, an output shaft configured to be rotated by the motor relative to the body, and a bearing assembly positioned between the output shaft and the body and configured to support the rotation of the output shaft. The bearing assembly has a first axial angular contact roller bearing. The roller bearing has a pair of frusto-conical bearing rings forming a pair of parallel races, a bearing cage positioned between the pair of bearing rings and including a plurality of openings, and a plurality of rollers positioned in the openings and in contact with the races.

An accessibility-enhancing joint module may include a housing, a powered motor disposed within the housing, a rotatable receiving member operatively connected to the powered motor, a coupling element configured to attach to the receiving member, and a control board disposed within the housing and operatively connected to the powered motor, wherein the coupling element is disposed external to the housing. An accessibility-enhancing arm assembly may include a first joint module and a second joint module and a tubular arm member attached to the proximal mounting portion of the first joint module and the proximal mounting portion of the second joint module, each joint module including a housing having a body portion and a proximal mounting portion, a powered motor disposed within the housing, and a rotatable receiving member operatively connected to the powered motor. The joint module(s) and/or the arm assembly may be operable by a variety of accessible controls.

A torque transmission device includes an inner ring, an outer ring, and at least one pair of receiving bellows. The at least one pair of receiving bellows includes a positive receiving bellows and a negative receiving bellows. The torque transmission device also includes at least one gas pressure spring and an adjusting unit connected to the at least one gas pressure spring. The receiving bellows are arranged between the outer ring and the inner ring such that when the inner ring is rotated in the positive rotational direction, the positive receiving bellows may be compressed, and when the inner ring is rotated in the negative rotational direction, the negative receiving bellows may be compressed. In addition, the receiving bellows are connected to the at least one gas pressure spring in a fluidically conductive manner.

In one embodiment, a selectable-rate spring comprises a flexure bar connected to a rotatable shaft, the flexure bar having at least one arched portion. The selectable-rate spring also includes at least one rotational contactor connectable to a link member, wherein the rotational contactor rotates about an axis while maintaining contact with the arched portion of the flexure bar. As the rotational contactor rotates, it changes the connection stiffness between the rotatable shaft and the link member.

The present invention discloses a robot joint structure that includes a servo and a connection part. The servo includes a servo main body and an output shaft, and one end of the output protruding out of the servo main body. The servo main body includes a servo plate at one side surface thereof. The servo plate is fixed to the output shaft and capable of rotating together with the output shaft. The connection part includes a first connection arm, and the first connection arm defines at least one connection chamber allowing the servo plate to be inserted therein and mating tightly with the servo plate, to fix the connection part to the servo plate. The servo and the connection part of the robot joint structure mate tightly with each other, which avoids the disengagement during rotation. The assembling process is simple, which enhances the user experience.

A robot arm and method for using the robot arm. Embodiments may be directed to an apparatus comprising: a robot arm; an end effector coupled at a distal end of the robot arm and configured to hold a surgical tool; a plurality of motors operable to move the robot arm; and an activation assembly operable to send a move signal allowing an operator to move the robot arm.