Abstract:
An apparatus, system, and method for setting, maintaining, and adjusting a cable tension in a telerobotic surgical system are provided. A cable tensioning apparatus includes, in one example, an arm, a pulley rotatably coupled to the arm, and a base operably coupled to the arm, the base including a translation mechanism for changing the position of the pulley to control a tension of a cable movable along the pulley. A termination block includes, in one example, a block including two cable pathways with each cable pathway having a retaining means for a ball fitting, and a support for moving a cable along the two cable pathways, the cable including a ball fitting in each of the cable pathways.
Abstract:
A cable tensioning system of a surgical system comprises a base, an arm, and a moveable idler pulley rotatably coupled to a first end of the arm and positioned between a first pulley system and a second pulley system. A closed loop cable drive extends between the first pulley system and the second pulley system, and the closed loop cable drive passes over the moveable idler pulley. The cable tensioning system also comprises a translation mechanism slidably coupling a second end of the arm to the base. The translation mechanism is configured to move the arm relative to the base along a linear path between a first position and a second position such that the moveable idler pulley is moved away from at least one of the first pulley system or the second pulley system to control a tension in the closed loop cable drive.
Abstract:
An instrument manipulator may comprise a frame comprising an outer shell and an inner frame, the inner frame being movably coupled to the outer shell. The instrument manipulator may also include a plurality of actuator outputs protruding in a distal direction from the frame and an instrument support feature coupled to the outer shell. The instrument manipulator may further comprise a latching mechanism, the latching mechanism being configured to move the inner frame, the outer shell, or both relative to one another, so as to operably engage the plurality of actuator outputs with a plurality of actuator inputs of an instrument supported by the instrument support feature.
Abstract:
A surgical system includes an insertion assembly and a drape shroud assembly mounted on the insertion assembly. When a sleeve of a surgical drape draping the insertion assembly is fastened to the drape shroud assembly, the sleeve is divided into two pockets. Instead of managing one long tube, the management problem of the drape sleeve is reduced to managing a plurality of shorter tubes. Shorter tubes make it easier for excess sleeve material to accordion as the tube length shortens instead of possibly bowing out and contacting a part of the insertion assembly or some other part of the surgical system.
Abstract:
A surgical system (200) includes a surgical instrument (260) that is sensitive to backlash that would adversely affect the transmission of controlled torque and position to the surgical instrument. The surgical instrument (260) is coupled to motors in a surgical instrument manipulator assembly (240) via a mechanical interface. The combination of the mechanical interface and surgical instrument manipulator assembly (240) have low backlash, e.g., less than 0.7 degrees. The backlash is controlled in the surgical instrument manipulator assembly (240). From the drive output disk (545) in the surgical instrument manipulator assembly to the driven disk (964) of the surgical instrument, the mechanical interface has zero backlash for torque levels used in surgical procedures.
Abstract:
Medical, surgical, and/or robotic devices and systems often including offset remote center parallelogram manipulator linkage assemblies which constrains a position of a surgical instrument during minimally invasive robotic surgery are disclosed. The improved remote center manipulator linkage assembly advantageously enhances the range of instrument motion while at the same time reduces the overall complexity, size, and physical weight of the robotic surgical system.
Abstract:
A cable tensioning system of a surgical system comprises a base, an arm, and a moveable idler pulley rotatably coupled to a first end of the arm and positioned between a first pulley system and a second pulley system. A closed loop cable drive extends between the first pulley system and the second pulley system, and the closed loop cable drive passes over the moveable idler pulley. The cable tensioning system also comprises a translation mechanism slidably coupling a second end of the arm to the base. The translation mechanism is configured to move the arm relative to the base along a linear path between a first position and a second position such that the moveable idler pulley is moved away from at least one of the first pulley system or the second pulley system to control a tension in the closed loop cable drive.
Abstract:
An instrument manipulator and a robotic surgical system including an instrument manipulator are provided. In one embodiment, an instrument manipulator includes a plurality of independent actuator drive modules, each of the plurality of actuator drive modules including an actuator output, wherein each of the actuator outputs are configured to independently actuate a corresponding actuator input of a surgical instrument without force input from another actuator output. The instrument manipulator further includes a frame housing the plurality of independent actuator drive modules, the frame including a distal end from which each of the actuator outputs distally protrude for engaging the corresponding actuator inputs of the surgical instrument.
Abstract:
An apparatus, system, and method for setting, maintaining, and adjusting a cable tension in a telerobotic surgical system are provided. A cable tensioning apparatus includes, in one example, an arm, a pulley rotatably coupled to the arm, and a base operably coupled to the arm, the base including a translation mechanism for changing the position of the pulley to control a tension of a cable movable along the pulley. A termination block includes, in one example, a block including two cable pathways with each cable pathway having a retaining means for a ball fitting, and a support for moving a cable along the two cable pathways, the cable including a ball fitting in each of the cable pathways.
Abstract:
In one embodiment, a method is disclosed for a robotic arm. The method includes pitching a linkage assembly having a plurality of links coupled in series together to constrain movement of a tool along an insertion axis; and enabling movement of the linkage assembly about a pitch axis with a strap drive-train coupled thereto using an electro-mechanical strap stack routed between a first link and a second link. The electro-mechanical strap stack includes a drive strap coupled to the linkage. The drive strap moves the linkage assembly.