A robotic system includes an electrosurgical instrument having an instrument housing with a shaft and first and second jaw members attached thereto movable to grasp tissue. An input is coupled to a jaw drive rod and is configured to move the jaw members. A strain gauge is coupled to the jaw drive rod and is configured to measure an amount of strain thereon and communicate the amount of strain to a robotic controller. A handle is remotely disposed relative to the instrument housing and is configured to communicate with the input for controlling the jaw members. The handle includes a housing having components therein and a lever operably associated therewith such that movement of the lever relative to the housing correlates to movement of the jaw members. The components are configured to operably regulate the resistance of the lever in response to the amount of strain from the strain gauge.

A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged. Some configurations include an accelerometer which permits the handheld device to detect movement and perform various operations responsive to detected movement. A dual charging station is also disclosed.

A system and method are provided for aligning a tool with a targeted axis in tissue to perform a medical procedure. medical plan is registered to the location of the tissue using a computer-assisted medical system, where the medical plan include a planned position for the targeted axis based on pre-procedure data. The tool is aligned with the planned position for the targeted axis using a computer- assisted medical system. The computer-assisted medical system includes a hand- held device having a handle and a working portion adjustable relative to the handle so as to orient the tool. A computing system is also provided comprising a tracking system and a control system for registering the medical plan to the location of the tissue, tracking the hand-held device relative to the tissue and the medical plan, and adjusting the working portion of the hand-held device relative to its handle.

A robotic surgery method for cutting a bone of a patient includes characterizing the geometry and positioning of the bone and manually moving a handheld manipulator, the handheld manipulator operatively coupled to a bone cutting tool having an end effector portion, to cut a portion of the bone with the end effector portion. The handheld manipulator further comprises a manipulator housing and an actuator assembly movably coupled between the manipulator housing and the bone cutting tool. The method further includes causing the actuator assembly to automatically move relative to the manipulator housing to maintain the end effector portion of the tool within a desired bone cutting envelope in response to movement of the manipulator housing relative to the bone.

A surgical robot includes: a surgical instrument; a manipulator that supports a surgical instrument without holding a trocar and includes an instrument interface to which the surgical instrument is attached, an arm including rotational joints, and a prismatic joint; and a controller. The controller may store a center of motion of the surgical instrument and control motion of the manipulator such that with the shaft inserted through the trocar and the tool located in a body cavity of the patient, a relationship T1≥L is established in a case of L≤T0, wherein: L represents an intra-body cavity length of the surgical instrument; T0 represents a maximum possible linear movement amount of the prismatic joint from an origin position along the axial direction; and T1 represents a first linear movement amount of the prismatic joint from the origin position to a current position along the axial direction.

A system and method includes deploying first and second articulated arms of a computer-assisted device so that a first attachment point on the first articulated arm and a second attachment point of the second articulated arm are positioned and oriented relative to each other based on a size and a shape of an arm stabilizer; stabilizing and reducing vibration of the first and second articulated arms by attaching the arm stabilizer to the first and second attachment points; after the stabilizing and reducing vibration of the first and second articulated arms, positioning and orienting a tool with the first articulated arm; and after the positioning and orienting of the tool, operating the tool. In some embodiments, the tool is a medical tool. In some embodiments, the system and method further include positioning and orienting a second tool with the second articulated arm and operating the second tool.

A method for disengagement detection of a surgical instrument of a surgical robotic system, the method comprising: determining whether a user's head is unstable prior to disengagement of a teleoperation mode; determining whether a pressure release has occurred relative to at least one of a first user input device or a second user input device for controlling a surgical instrument of the surgical robotic system during the teleoperation mode; and in response to determining the user's head is unstable or determining the pressure release has occurred, determining whether a distance change between the first user input device and the second user input device indicates the user is performing an unintended action prior to disengagement of the teleoperation mode.

A method includes providing a handheld manipulator, a surgical tool coupled to the handheld manipulator, and a mechanical arm, affecting, with the handheld manipulator connected to the mechanical arm, motion of the surgical tool by operating a motor of the handheld manipulator, and affecting, with the handheld manipulator disconnected from the mechanical arm, the motion of the surgical tool by operating the motor of the handheld manipulator.

A parallel kinematic mechanism apparatus includes a frame, a handle and an input joint that connects having at least two independent and functionally parallel paths for transmission of motion coupling the handle to the frame. A first path includes a first intermediate body connected to the frame by a first connector and to the handle by a third connector while the second path that is independent from the first path includes a second intermediate body that is connected to the frame by a second connector and to the handle by a fourth connector. The first connector and the fourth connector both allow rotation in a first rotational direction and restrict rotation in a second rotational direction and the second and third connectors allow rotation in the second rotational direction and restrict rotation in the first rotational direction.

A computer-assisted surgery system allows a user to control movements of a surgical tool by providing, to a control unit, inputs in the form of measured displacements via a movable part of a handle while treating a region of interest with the tool. The control unit is configured to enable motion of the tool with respect to an anatomical structure only if a user moves the movable part, receive the measured displacement of the movable part, receive from a localization unit the relative position and orientation of the tool relative to the anatomical structure, based on the measured displacement, on the surgical plan and on the relative position and orientation of the tool relative to the anatomical structure, compute an instruction to send to a motorized joint to move a robotic arm to operate the tool according to an optimal trajectory, and send the computed instruction to the motorized joint.