Patent application number | Description | Published |
20120059391 | APPLICATION OF FORCE FEEDBACK ON AN INPUT DEVICE TO URGE ITS OPERATOR TO COMMAND AN ARTICULATED INSTRUMENT TO A PREFERRED POSE - A medical robotic system includes an entry guide with articulated instruments extending out of its distal end. A controller is configured to command manipulation an articulated instrument in response to operator manipulation of an associated input device while generating a force command to the input device that nudges the operator to command the instrument to a preferred pose. When a transition is to occur between first and second preferred poses, one is phased in while the other is phased out. Virtual barriers may be imposed to prevent the articulated instrument from being commanded to an undesirable pose. | 03-08-2012 |
20120059392 | METHOD AND SYSTEM FOR MOVING A PLURALITY OF ARTICULATED INSTRUMENTS IN TANDEM BACK TOWARDS AN ENTRY GUIDE - A medical robotic system includes articulated instruments extending out of a distal end of an entry guide. Prior to pivoting the entry guide to re-orient it and the instruments, the instruments are moved in tandem back towards the entry guide. Haptic cues and velocity limits are provided to assist the operator in the retraction of the instruments. After retraction, the entry guide may then be pivoted without concern that the instruments will harm patient anatomy. The movement of the instruments in tandem back towards the entry guide may also occur through coupled control modes while the entry guide is held in a fixed position and orientation. | 03-08-2012 |
20130211588 | SWITCHING CONTROL OF AN INSTRUMENT TO AN INPUT DEVICE UPON THE INSTRUMENT ENTERING A DISPLAY AREA VIEWABLE BY AN OPERATOR OF THE INPUT DEVICE - An operator telerobotically controls instruments to perform a procedure on an object at a work site while viewing real-time images of the work site on a display screen. An assistant controls movement of another instrument towards or away from the work site to relieve the operator from such task. Control of the instrument is automatically switched from the assistant to the operator upon the working end of the instrument entering the view on the display screen. | 08-15-2013 |
20130211590 | USER SELECTION OF ROBOTIC SYSTEM OPERATING MODES USING MODE DISTINGUISHING OPERATOR ACTIONS - A robotic system has a plurality of user selectable operating modes. To select one of the operating modes, a user performs a distinguishing action which uniquely identifies a desired operating mode among the plurality of user selectable operating modes. A method implemented by a processor in the robotic system identifies the distinguishing action and places the robotic system in the user selected operating mode. | 08-15-2013 |
20130218171 | MEDICAL ROBOTIC SYSTEM HAVING ENTRY GUIDE CONTROLLER WITH INSTRUMENT TIP VELOCITY LIMITING - A medical robotic system includes an entry guide with articulatable instruments extending out of its distal end, an entry guide manipulator providing controllable four degrees-of-freedom movement of the entry guide, and a controller configured to limit joint velocities in the entry guide manipulator so as to prevent movement of tips of the articulatable instruments from exceeding a maximum allowable linear velocity when the entry guide manipulator is being used to move the entry guide. | 08-22-2013 |
20130218172 | MEDICAL ROBOTIC SYSTEM HAVING ENTRY GUIDE CONTROLLER WITH INSTRUMENT TIP VELOCITY LIMITING - A medical robotic system includes an entry guide with articulatable instruments extending out of its distal end, an entry guide manipulator providing controllable four degrees-of-freedom movement of the entry guide, and a controller configured to limit joint velocities in the entry guide manipulator so as to prevent movement of tips of the articulatable instruments from exceeding a maximum allowable linear velocity when the entry guide manipulator is being used to move the entry guide. | 08-22-2013 |
20130226197 | CONTROL SYSTEM CONFIGURED TO COMPENSATE FOR NON-IDEAL ACTUATOR-TO-JOINT LINKAGE CHARACTERISTICS IN A MEDICAL ROBOTIC SYSTEM - A medical robotic system having non-ideal actuator-to-joint linkage characteristics, includes a control system including a proximal control loop with actuator sensor feedback to control dynamic response of an actuator coupled to a distal joint which in turn, is coupled to an end effector to provide a degree of freedom movement of the end effector, a distal control loop with distal joint sensor feedback and feedforward to the actuator to ensure steady-state convergence of the distal joint position, and an end effector control loop with end-point sensor feedback to control the end effector position to reach a commanded end effector position. | 08-29-2013 |
20130231680 | METHOD AND SYSTEM FOR MOVING A PLURALITY OF ARTICULATED INSTRUMENTS IN TANDEM BACK TOWARDS AN ENTRY GUIDE - A medical robotic system includes articulated instruments extending out of a distal end of an entry guide. Prior to pivoting the entry guide to re-orient it and the instruments, the instruments are moved in tandem back towards the entry guide after a delay. Haptic cues and velocity limits are provided to assist the operator in the retraction of the instruments. After retraction, the entry guide may then be pivoted without concern that the instruments will harm patient anatomy. The movement of the instruments in tandem back towards the entry guide may also occur through coupled control modes while the entry guide is held in a fixed position and orientation. | 09-05-2013 |
20130325031 | REDUNDANT AXIS AND DEGREE OF FREEDOM FOR HARDWARE-CONSTRAINED REMOTE CENTER ROBOTIC MANIPULATOR - A remote center manipulator for use in minimally invasive robotic surgery includes a base link held stationary relative to a patient, an instrument holder, and a linkage coupling the instrument holder to the base link. First and second links of the linkage are coupled to limit motion of the second link to rotation about a first axis intersecting a remote center of manipulation. A parallelogram linkage portion of the linkage pitches the instrument holder around a second axis that intersects the remote center of manipulation. The second axis is not coincident with the first axis. Third and fourth links of the linkage are coupled to limit motion of the fourth link to rotation about a third axis intersecting the remote center of manipulation. The third axis is not coincident with either of the first and second axes. Various combinations of hardware-constrained remote center of motion robotic manipulators with redundant mechanical degrees of freedom are disclosed. | 12-05-2013 |
20140052151 | PHANTOM DEGREES OF FREEDOM FOR MANIPULATING THE MOVEMENT OF SURGICAL SYSTEMS - Methods, apparatus, and systems for performing minimally invasive surgery through an aperture of a patient. In accordance with a method, parameters are received from an input device associated with a surgeon, the parameters indicating a desired state of an end effector of a surgical instrument oriented through the aperture. The surgical instrument is included in a mechanical assembly having a first set of joints. Instructions are then computed for controlling the mechanical assembly using the received parameters by computing instructions for controlling a second set joints, the second set of joints including the first set of joints and an additional joint, the additional joint being absent from the mechanical assembly. The mechanical assembly is then driven so as to move the end effector toward the desired state based on the computed instructions. | 02-20-2014 |
20140052152 | PHANTOM DEGREES OF FREEDOM IN JOINT ESTIMATION AND CONTROL - Methods, apparatus, and systems for operating a surgical system. In accordance with a method, a position of a surgical instrument is measured, the surgical instrument being included in a mechanical assembly having a plurality of joints and a first number of degrees of freedom, the position of the surgical instrument being measured for each of a second number of degrees of freedom of the surgical instrument. The method further includes estimating a position of each of the joints, where estimating the position of each joint includes applying the position measurements to at least one kinematic model of the mechanical assembly, the kinematic model having a third number of degrees of freedom greater than the first number of degrees of freedom. The method further includes controlling the mechanical assembly based on the estimated position of the joints. | 02-20-2014 |
20140052298 | PHANTOM DEGREES OF FREEDOM FOR MANIPULATING THE MOVEMENT OF MECHANICAL BODIES - Methods, apparatus, and systems for controlling the movement of a mechanical body. In accordance with a method, desired movement information is received that identifies a desired motion of a mechanical body, the mechanical body having a first number of degrees of freedom. A plurality of instructions are then generated by applying the received desired movement information to a kinematic model, the kinematic model having a second number of degrees of freedom greater than the first number of degrees of freedom, each of the instructions being configured to control a corresponding one of the second number of degrees of freedom. A subset of the plurality of instructions are then transmitted for use in controlling the first number of degrees of freedom of the mechanical body. | 02-20-2014 |
20140222021 | MEDICAL ROBOTIC SYSTEM WITH COUPLED CONTROL MODES - In a coupled control mode, the surgeon directly controls movement of an associated slave manipulator with an input device while indirectly controlling movement of one or more non-associated slave manipulators, in response to commanded motion of the directly controlled slave manipulator, to achieve a secondary objective. By automatically performing secondary tasks through coupled control modes, the system's usability is enhanced by reducing the surgeon's need to switch to another direct mode to manually achieve the desired secondary objective. Thus, coupled control modes allow the surgeon to better focus on performing medical procedures and to pay less attention to managing the system. | 08-07-2014 |
20140249544 | MEDICAL ROBOTIC SYSTEM HAVNG ENTRY GUIDE CONTROLLER WITH INSTRUMENT TIP VELOCITY LIMITING - A medical robotic system includes an entry guide with articulatable instruments extending out of its distal end, an entry guide manipulator providing controllable four degrees-of-freedom movement of the entry guide, and a controller configured to limit joint velocities in the entry guide manipulator so as to prevent movement of tips of the articulatable instruments from exceeding a maximum allowable linear velocity when the entry guide manipulator is being used to move the entry guide. | 09-04-2014 |
20140276950 | Inter-Operative Switching of Tools in a Robotic Surgical System - Methods, apparatus, and systems for controlling a telesurgical system are disclosed. In accordance with a method, a first tool connected to a first manipulator of the system, and a second tool connected to a second manipulator of the system, are controlled. A swap of the tools such that the first tool is connected to the second manipulator and the second tool is connected to the first manipulator is then detected. The first tool connected to the second manipulator and the second tool connected to the first manipulator are then controlled. | 09-18-2014 |
20140276951 | Software Configurable Manipulator Degrees of Freedom - Methods, apparatus, and systems for controlling a plurality of manipulator assemblies of a robotic system. In accordance with a method, a first plurality of sensor signals are received at a plurality of joint space interface elements from a plurality of connector input elements via a first mapping between the joint space interface elements and joints of the first manipulator assembly. The connector input elements are operable to couple to only one manipulator assembly at a time. The received first sensor signals are then processed with a joint controller so as to control the first manipulator assembly. A second plurality of sensor signals are then received from the connector input elements at the joint space interface elements via a second mapping different than the first mapping. The received second sensor signals are then processed with the joint controller so as to control a second manipulator assembly different than the first manipulator assembly. | 09-18-2014 |
20150057677 | CONTROL SYSTEM CONFIGURED TO COMPENSATE FOR NON-IDEAL ACTUATOR-TO-JOINT LINKAGE CHARACTERISTICS IN A MEDICAL ROBOTIC SYSTEM - A medical robotic system having non-ideal actuator-to-joint linkage characteristics, includes a control system including a proximal control loop with actuator sensor feedback to control dynamic response of an actuator coupled to a distal joint which in turn, is coupled to an end effector to provide a degree of freedom movement of the end effector, a distal control loop with distal joint sensor feedback and feedforward to the actuator to ensure steady-state convergence of the distal joint position, and an end effector control loop with end-point sensor feedback to control the end effector position to reach a commanded end effector position. | 02-26-2015 |
20150065793 | MEDICAL ROBOTIC SYSTEM PROVIDING COMPUTER GENERATED AUXILIARY VIEWS OF A CAMERA INSTRUMENT FOR CONTROLLING THE POSITION AND ORIENTING OF ITS TIP - A medical robotic system includes an entry guide with surgical tools and a camera extending out of its distal end. To supplement the view provided by an image captured by the camera, an auxiliary view including articulatable arms of the surgical tools and/or camera is generated from sensed or otherwise determined information about their positions and orientations and displayed on a display screen from the perspective of a specified viewing point. Intuitive control is provided to an operator with respect to the auxiliary view while the operator controls the positioning and orienting of the camera. | 03-05-2015 |