Abstract: Apparatus and methods are described including a robotic unit (20) that includes an end effector (35) and a tool mount (34) configured to securely hold tools (21). Robotic arms (120) rotate the tools through pitch and yaw rotations. An XYZ platform (110) moves the robotic unit (20) along X and Y directions within an XY plane, and along a Z direction that is perpendicular to the XY plane. The XYZ platform (110) includes a first slidable shutter (122) that is configured to cover an interior of the XYZ platform (110) by sliding along the X direction as the robotic unit (20) is moved along the X direction, and a second slidable shutter (123) that is configured to cover an interior of the XYZ platform (110) by sliding along the Y direction as the robotic unit (20) moved along the Y direction. Other applications are also described.

Abstract: Apparatus and methods are described for performing robotic microsurgery on a patient's body. Two or more tools (21) each include a mount-engagement portion (32) that defines a front recess (82) and a rear recess (84). A tool mount (34) defines a tool-receiving socket (86) securely holds the one or more tools. The tool-mount (34) includes a rear set of rollers (94) that are configured to be placed within the rear recess (84) and a front set of rollers (92) that are configured to be placed within the front recess (82). A tool-securement cover that is hingedly coupled to the tool-receiving socket (86) is configured to secure the tool (21) within the tool-receiving socket (86). A motor (93) rolls the tool (21) with respect to the tool mount (34), while the tool (21) is securely held within the tool mount (34). Other applications are also described.

Abstract: Apparatus and methods are described for performing a procedure on a portion of a patient's body. A robotic unit holds a tool at a given orientation with respect to the portion of the patient's body. A display displays a virtual tool overlaid upon the image of the portion of the patient's body, such that at least a portion of the virtual tool coincides with a corresponding portion of the tool. In response to an input from an operator indicating that the portion of the virtual tool should be moved in a given manner, the tool is driven to move such that the corresponding portion of the tool moves with respect to the portion of the patient's body in a corresponding manner to the movement of the portion of the virtual tool. Other applications are also described.

Abstract: Apparatus and methods are described for performing a procedure using a robotic unit. A sterile drape is placed around a drape plate, such that the sterile drape is sealed with respect to the drape plate and forms an interface between a non-sterile zone and a sterile zone, a tool mount being disposed within the sterile zone, and one or more robotic arms and a linear tool motor being disposed within the non-sterile zone. A tool-actuation arm, disposed within the non-sterile zone, is driven to move linearly to thereby move at least the portion of the tool linearly with respect to the end effector. A portion of the sterile drape that is configured to be disposed at an interface between the tool-actuation arm and the portion of the tool that is pushed has greater rigidity and/or wearability than other portions of the drape. Other applications are also described.

Abstract: Apparatus and methods are described for performing a procedure using a robotic unit. A tool-actuation arm is driven to move linearly, to thereby move at least the portion of the tool linearly with respect to the end effector. The tool-actuation arm is driven to become retracted to a given distance from the tool mount, thereby causing the tool-actuation arm to fold automatically by actuating an automatic tool-actuation arm folding mechanism. Other applications are also described.

Abstract: Apparatus and methods are described for performing a procedure using a robotic unit. A sterile drape is placed around a drape plate, such that the sterile drape forms an interface between a non-sterile zone and a sterile zone, such that the tool mount is disposed within the sterile zone, and one or more robotic arms and a tool motor are disposed within the non-sterile zone. The tool is driven to roll with respect to the end effector via at least one gear mechanism disposed within the sterile zone, and a motion-transmission portion configured to transmit motion from the tool motor to the at least one gear mechanism, while maintaining a seal between the sterile zone and the non-sterile zone. Other applications are also described.