An example rotational joint assembly for a robotic medical system, the rotational joint assembly comprising at least one arm segment and a rotational joint provided at one end of the arm segment. The rotational joint is to allow the arm segment to rotate about a rotational axis. The rotational joint comprising a brake to lock rotation of the arm segment at the rotational joint and an actuator to selectively engage or disengage the brake. The actuator comprising a cam having two stable regions separated by two transition regions, the two stable regions comprising a first stable region corresponding to engagement of the brake and a second stable region corresponding to disengagement of the brake.

A medical device includes a link, a first tool member, a second tool member and a third tool member, which each have a proximal end portion movably coupled to the link and a distal end portion. The distal end portion of the first tool member can engage a first object and be associated with a first medical function, the distal end portion of the second tool member can engage a second object and be associated with a second medical function, and the distal end portion of the third tool member can engage the first object or the second object and be associated with the first and/or second medical function. Each of the first, second and third tool members can move relative to the link independent of movement of the each of the other tool members.

An exemplary embodiment relates to an input unit (10) for operating a medical instrument (12) with a hollow shaft (14) extending along a longitudinal axis (L) for receiving guide wires (20), with a tool (16) arranged on the distal side of the shaft (14), extending along an extension axis (E) and a control unit (18) arranged proximally on the shaft (14) for handling the tool (16) by means of the guide wires (20), comprising first input means (22) for continuous, pivoting and rotation-true, preferably uninterrupted and/or absolute, conversion of an ergonomically limited user input, in particular a natural user movement of movable first operating means, into an adjustment movement of the tool (16) in a first handling mode, in order to pivot the tool (16) by means of the control unit (18) relative to the longitudinal axis (L) in a limited way and/or to rotate about the extension axis (E) in a limited way.

An exemplary embodiment provides a steering gear (13) for a surgical instrument (1), which can be arranged at the proximal end (3) of a shaft (2) that defines a longitudinal axis (B) and has a bending mechanism (9) at the distal end (5). The steering gear (13) has two controllable and adjustable motorised drives and is designed to transfer the adjustment angles of the two controllable and adjustable motorised drives to a spatial alignment of a swash plate (14) which is designed to control the distal bending mechanism (9) of the surgical instrument (1). The swash plate (14) is arranged in a steering ring (19), and each of the two controllable and adjustable motorised drives has a drive shaft (17a, 17b) driven by a motor (17, 17′), each of which is connected to the steering ring (19) directly and operatively connected via a force transmitter (16, 16′), wherein the two force transmitters (16, 16′) which are arranged on the drive shafts (17a, 17b) each define a drive axis (C, C′), directly contacting the steering ring (19) at an effective section (W). The steering ring (19) is cardanically suspended on a fastening device which has position sensors (23, 24, 25) on its cardan axes. Furthermore, a surgical instrument (1) with a steering gear (13) and a method for controlling the position of a steering ring (19) of a steering gear (13) are disclosed.

An ultrasonic surgical instrument and method of deflecting an end effector includes the end effector having an ultrasonic blade, a shaft assembly defining a longitudinal axis, and a body assembly. The shaft assembly has an articulation section configured to articulate from a straight configuration to an articulated configuration and an acoustic waveguide with a flexible waveguide portion positioned within the articulation section. The body assembly proximally extends from the shaft assembly and includes a housing and a shiftable transducer. The shiftable transducer is secured to the acoustic waveguide and configured to generate an ultrasonic energy. In addition, the shiftable transducer assembly is movably mounted relative to the housing and configured to accommodate deflection of the end effector.

An articulation assembly, surgical instrument including the same, and robotic surgical system including the same. The articulation assembly includes a lead screw assembly including a lead screw and a collar operably engaged about the lead screw such that rotation of the lead screw translates the collar about the lead screw. The lead screw defines a proximal input end rotatably received within a first base assembly and a distal dock end rotatably received within a second base assembly. An articulation cable is operably coupled to the collar such that movement of the collar about the lead screw tensions or de-tensions the articulation cable. A set screw is threadingly engaged within the second base assembly and operably coupled to the distal dock end of the lead screw such that proximal rotational driving of the set screw urges the lead screw proximally, thereby urging the collar proximally to tension the articulation cable.

A facilitation system for facilitating remote presentation of a physical world includes a first object and an operating environment of the first object. The facilitation system includes a processing system configured to obtain an image frame depicting the physical world, identify a depiction of the first object in the image frame, and obtain a first spatial registration registering an object model with the first object in the physical world. The object model is of the first object. The processing system is further configured to obtain an updated object model corresponding to the object model updated with a current state of the first object, and generate a hybrid frame using the image frame, the first spatial registration, and the updated object model. The hybrid frame includes the image frame with the depiction of the first object replaced by a depiction of the updated object model.

A robotic surgical instrument includes a housing having a shaft extending therefrom configured to receive a first end effector including jaw members moveable between a fully open position wherein the jaw members are spaced a maximum distance relative to one another and a closed position wherein a closure pressure between the jaw members is within a predetermined range. A drive rod actuates the first end effector upon translation thereof. The housing includes a spring compression assembly having proximal and distal hubs with the compression spring disposed therebetween. A jaw drive input rotates a drive gear to translate the distal hub relative to the proximal hub to compress the compression spring and actuate the end effector. Once the jaw members are fully open, the jaw drive input rotates a preset number of degrees to compress the compression spring and approximate the jaw members to a closure pressure within the predetermined range.

Manipulator devices are used for computer-assisted tele-operated surgery. In some embodiments, the manipulator devices described herein include an arm with a proximal end that is configured to releasably couple with a set-up structure of a computer-assisted tele-operated surgery system. A first ring is rotatably coupled to a distal end portion the arm and is rotatably driven by a first gear motor within the arm. A second ring that is concentric with the first ring is also rotatably coupled to the distal end portion of the arm. Rotations of the second ring are driven by a second gear motor within the arm. An instrument actuator coupling is pivotably coupled to the second ring. The instrument actuator coupling is configured to releasably couple with a computer-assisted tele-operated surgical instrument actuator, and defines a surgical instrument insertion axis.

The invention relates to a surgical system for cutting an anatomical structure (F, T) of a patient according to at least one target plane defined in a coordinate system of the anatomical structure, comprising: i) a robotic device (100) comprising: —a cutting tool, —an actuation unit (4) comprising from three to five motorized degrees of freedom, said actuation unit comprising at least one portion having a parallel architecture comprising a base (40) and a platform (41) selectively orientable relative to the base (40) according to at least two of said motorized degrees of freedom, —a planar mechanism (24) connecting a terminal part of the actuation unit (4) to the cutting tool (2), ii) a passive articulated lockable holding arm (51) supporting the actuation unit, iii) a tracking unit (200) configured to determine in real time the pose of the cutting plane with respect to the coordinate system of the anatomical structure, iv) a control unit (300) configured to determine the pose of the cutting plane with respect to the target plane, to detect whether the cutting plane can be aligned with one target plane without changing the pose of the actuation unit, the control unit being further configured to, if the cutting plane cannot be aligned with the target plane, compute indication to a user to reposition the actuation unit with respect to the anatomical structure and, if the cutting plane can be aligned with the target plane, control the actuation unit (4) so as to bring the cutting plane into alignment with the target plane, v) a user interface coupled to the control unit, configured to indicate directions to a user to position the actuation unit with respect to the anatomical structure according to a pose allowing aligning the cutting plane with the target plane.