Patent application number | Description | Published |
20120150154 | DECOUPLING INSTRUMENT SHAFT ROLL AND END EFFECTOR ACTUATION IN A SURGICAL INSTRUMENT - Surgical assemblies and related methods are disclosed that provide for decoupling of instrument shaft roll and end effector actuation. A surgical assembly includes a base, an instrument shaft rotationally mounted to the base, an end effector supported at a distal end of the instrument shaft and including an actuation mechanism driven by a rotational motion, a drive shaft rotationally coupled with the actuation mechanism and configured to provide the rotational motion to the actuation mechanism, and a differential rotationally coupled to the drive shaft and receiving a first input motion and a second input motion. The differential combines the first and second input motions to generate an output motion that rotates the drive shaft. The first input motion is rotationally coupleable to an actuation source. The second input motion is coupled to rotation of the instrument shaft relative to the base. | 06-14-2012 |
20120150192 | METHOD FOR PASSIVELY DECOUPLING TORQUE APPLIED BY A REMOTE ACTUATOR INTO AN INDEPENDENTLY ROTATING MEMBER - Surgical assemblies and related methods are disclosed that provide for the transmission of high levels of actuation torque to a rotary mechanism of an end effector supported by an independently rotatable main shaft without causing undesirable rotation of the main shaft. An input drive shaft is coupled with both the rotary mechanism and the main shaft via a transmission and a rotational coupling so that the main shaft is passively subjected to a counteracting torque opposite in direction to the actuation torque transmitted to the rotary mechanism so as to inhibit rotational driving of the main shaft by the transmitted actuation torque. | 06-14-2012 |
20120310221 | SURGICAL INSTRUMENT WITH CONTROL FOR DETECTED FAULT CONDITION - A method and system of controlling a surgical instrument including an end effector are provided. The method includes detecting a first signal indicating that an end effector component of a surgical instrument is positioned between a first position and a second position, and automatically controlling operation of the end effector component after a second signal is not received within a predetermined time period after detecting the first signal. The second signal indicates that the end effector component is in one of the first position or the second position. The system includes a surgical instrument and a controller to implement the method. | 12-06-2012 |
20120310255 | SURGICAL INSTRUMENT WITH SINGLE DRIVE INPUT FOR TWO END EFFECTOR MECHANISMS - Methods for treating tissue, and surgical assemblies and related methods are disclosed in which a single input is used to sequentially articulate two members. A surgical assembly includes an end effector, a base supporting the end effector, an input link movable relative to the base through a range of motion between a first configuration and a second configuration, and an actuation mechanism. The end effector includes a first articulated member and a second articulated member. The actuation mechanism drivingly couples the input link to the first articulated member within a first portion of the range of motion and drivingly coupling the input link with the second articulated member within a second portion of the range of motion so that a movement of the input link from the first configuration to the second configuration articulates the first articulated member and then articulates the second articulated member. | 12-06-2012 |
20120310256 | GRIP FORCE CONTROL IN A ROBOTIC SURGICAL INSTRUMENT - Surgical assemblies, instruments, and related methods are disclosed that control tissue gripping force. A surgical assembly includes an end effector including a jaw operable to grip a patient tissue and a spring assembly. The spring assembly includes an output link drivingly coupled with the jaw, an input link drivingly coupled to an articulation source, and a spring coupled with the input and output links to transfer an articulation force from the input link to the output link. The spring is preloaded to inhibit relative movement between the input link and the output link while the transferred articulation force is below a predetermined level and so as to allow relative movement between the input link and the output link when the transferred articulation force is above the predetermined level. | 12-06-2012 |
20130204271 | Systems and Methods for Controlling a Robotic Surgical System - A method comprises generating a command to move a surgical robotic manipulator to a predetermined safety configuration and locking the robotic manipulator in the safety configuration in response to receiving the command. The method further comprises detecting if a mock instrument has been mounted on the robotic manipulator when the robotic manipulator is in the safety configuration. If the mock instrument is detected, an override command is generated to unlock the robotic manipulator from the safety configuration. | 08-08-2013 |
20140200596 | TORQUE COMPENSATION - Embodiments of a clamping system are disclosed. In some embodiments, a system used with a motor assembly and a clamping device is presented, the system adjusting torque limits in the motor assembly according to conditions, for example operating temperature of the motor assembly and aging of the clamping device and the motor assembly. The clamping device can be, for example, a stapler or a vessel sealer. | 07-17-2014 |
20150018863 | SURGICAL INSTRUMENT WITH SINGLE DRIVE INPUT FOR TWO END EFFECTOR MECHANISMS - Methods for treating tissue, and surgical assemblies and related methods are disclosed in which a single input is used to sequentially articulate two members. A surgical assembly includes an end effector, a base supporting the end effector, an input link movable relative to the base through a range of motion between a first configuration and a second configuration, and an actuation mechanism. The end effector includes a first articulated member and a second articulated member. The actuation mechanism drivingly couples the input link to the first articulated member within a first portion of the range of motion and drivingly coupling the input link with the second articulated member within a second portion of the range of motion so that a movement of the input link from the first configuration to the second configuration articulates the first articulated member and then articulates the second articulated member. | 01-15-2015 |