Disclosed herein are systems and methods for a robotic arm guide used as a depth stop. For example, a system for positioning a surgical tool includes a surgical robotic system having a robot arm with a guide sleeve, the guide sleeve defining axial and lateral directions. The system is further configured to (i) receive a surgical plan associated with a subject, the surgical plan including three-dimensional preoperative data related to the subject, (ii) determine, based on the surgical plan, a desired trajectory of a distal end of the surgical tool as the surgical tool is inserted into the guide sleeve, and (iii) transmit one or more control signals to the surgical robotic system, causing the surgical robotic system to orient and position the guide sleeve such that the distal end of the surgical tool follows the desired trajectory when the surgical tool is inserted in the guide sleeve.

To achieve in vivo repair of severed mammalian nerve tissue, a system can be employed to induce distraction neurogenesis. At least a portion of the system can be anchored at an injury site, such as between distal and proximal nerve ends. The system can be attached to the proximal nerve end and can place the nerve under micro-tension for an extended period of treatment. The system may also deliver medication or treatment to encourage neurogenesis and to reduce pain in the subject receiving treatment. After the course of treatment, the device can be removed from the injury site, and the nerve ends rejoined.

Systems include an end effector having a first jaw and a second jaw, a motor system configured to actuate the end effector, and a processor. The processor is configured to determine a maximum tip deflection for the end effector, determine a torque limit based on the maximum tip deflection, and operate, subject to the torque limit, the end effector using the motor system. In some embodiments, the maximum tip deflection is determined based a type of staple cartridge being used by the end effector. In some embodiments, the type of staple cartridge identifies a length of staples fired by the end effector. In some embodiments, the firing of the staples is stalled when an applied torque exceeds the torque limit. In some embodiments, the processor is further configured to fire staples subject to the torque limit.

A surgical instrument includes a body, an ultrasonic transducer assembly, and a transducer lock having a lock member configured to move between unlocked and locked positions. The transducer assembly is rotatably mounted along a longitudinal axis within the body such that the transducer assembly is configured to selectively rotate about the longitudinal axis. With the lock member in the unlocked position, the transducer assembly is configured to be selectively rotated about the longitudinal axis relative to the body. With the lock member in the locked position, the transducer lock is configured to seize the transducer assembly and inhibit rotation relative to the housing for coupling with an acoustic waveguide. The surgical instrument may also include an integral torque wrench for coupling the acoustic waveguide with a predetermined torque and an integral torque indictor for signaling to a user that the acoustic waveguide is coupled with the predetermined torque.

The invention relates to a surgical guide for receiving and guiding a surgical instrument performing a bone osteotomy, the guide including a body, at least one cutting channel extending in length along the first body face and extending through the body, the cutting channel having a discrete length such that the channel is bounded by the first and second body faces through which it extends, two or more apertures adapted to receive a fixation device, the guide including one or more elongate arms or arm assemblies directly or indirectly connected to and extending from one side wall of the body. The guide may be used in canine tibial plateau levelling osteotomy and other orthopedic or surgical procedures. Also described are methods for use of the guide.

A method of stapling tissue is disclosed. The method can include obtaining a staple cartridge including a plurality of staples, wherein each staple has a base and a leg extending from the base. The stapling method can also include firing the staples from the staple cartridge, wherein the staples are fired into tissue in a staple line. The staple line can include a first portion having a first flexibility and a second portion having a second flexibility, wherein the second flexibility is different than the first flexibility. A method of stapling tissue can also include adapting an anvil with an anvil plate having an arrangement of staple-forming pockets that differs from the staple-forming pockets in the anvil.

A surgical instrument comprised of a stapling end effector having a staple-applying assembly with opposing stapling surfaces defining a closure distance therebetween, wherein at least one stapling surface is movable, and a handle connected to the stapling end effector and comprising a staple-firing assembly that causes the staple-applying assembly to staple tissue between the stapling surfaces. The handle further comprises a power source, electric motor, and closure assembly that has a drive part movable by the motor, detection mechanism, a controller. The drive part is connected to the stapling end effector. When the motor is supplied with power, the drive part advances the movable stapling surface towards the opposing stapling surface. The detection mechanism detects a position of the drive part along the drive-part axis and the controller is configured to prevent stapling unless the drive part is at a position corresponding to a closure distance within a pre-defined range.

An instrument drive unit includes a hub, a motor pack, and an annular member disposed between the hub and the motor pack. The hub and motor pack each have a surface feature. The motor pack is rotatably coupled to the hub. The annular member defines an upper annular channel, and a lower annular channel. The annular member has a stop formed in each of the upper and lower annular channels. Upon the motor pack achieving a threshold amount of rotation relative to the hub, the surface feature of the motor pack abuts the stop of the lower annular channel to rotate the annular member. Upon the annular member achieving a threshold amount of rotation relative to the hub, the stop of the upper annular channel abuts the surface feature of the hub stopping further rotation of the motor pack.

A surgical instrument system comprising a first motor, a second motor, and a third motor is disclosed. The surgical instrument system comprises a first handle comprising a first number of controls, a second handle comprising a second number of controls, and a shaft assembly. The shaft assembly is attachable to the first handle in a first orientation in order to engage one of the motors. The shaft assembly is attachable to the second handle in a second orientation to engage a different motor. The surgical instrument system is configured to perform a different function of an end effector in the first orientation and the second orientation.

A universal drill guide system includes a universal drill guide, interchangeable drill tubes, and interchangeable drill bits. Each interchangeable drill tube corresponds to one of the interchangeable drill bits, and can be detachably coupled to the universal drill guide. A cannulated drill with K-wire retention features a drill bit with a retention mechanism that prevents axial advancement of a K-wire during drilling. A drill removal tool includes a drill remover that can be placed around a drill bit to remove it from bone after a hole is drilled, while leaving a K-wire in place in the bone. A bone screw driver with K-wire retention includes a shaft that can be passed over a K-wire, a distal end for attachment to a cannulated bone screw, and a K-wire retention module for preventing advancement of the K-wire as the screw driver drives the cannulated bone screw into bone.