An end effector for use by a surgeon to staple an anatomical structure of a patient during a surgical procedure includes an anvil and a cartridge. The anvil has an anvil face and a first staple pocket defined by the anvil face, where the first staple pocket comprises a first cup and a second cup for staple formation. The cartridge has a first staple, the first staple having a first open leg with a first tip, a second open leg with a second tip, and a first crown coupling the first open leg and the second open leg, and a first driver. The first staple, once deployed by the first driver and deformed by the first staple pocket, comprises the first tip and the second tip crossing the first midline axis of the first crown in a formed configuration.

Forceps can include a drive pin, an outer tube, a first jaw, a second jaw, and an inner shaft. The outer tube can extend along a longitudinal axis. The first jaw can be pivotably connected to the outer tube. The first jaw can include a first flange that can be located at a proximal portion of the first jaw. The first flange can include a first chamfered edge configured to limit extension of the first flange laterally beyond an outer surface of the outer tube when the first jaw is in a closed position. The inner shaft can be located within the outer tube and can extend along the longitudinal axis.

Forceps can include an outer tube, a first jaw, a second jaw, and an inner tube. The outer tube can extend along a longitudinal axis and can include a pair of outer arms extending from a distal portion of the outer tube. The first jaw can be pivotably connected to the outer tube and the first jaw can include a first flange and a second flange each located at a proximal portion of the first jaw. The first flange and the second flange can each include a proximal portion extending outward of the outer tube when the jaws are in an open position. The proximal portions can be shaped to limit extension of the proximal portions laterally beyond the outer arms.

Forceps with improved actuation include a housing and a body that is longitudinally slidable relative to the housing. The body having a peripheral flange extending outward towards the housing. A trigger includes an actuation surface configured to receive a force input from a user. The trigger further including at least one arm configured to transfer the received force input to the body. To inhibit lateral splaying of the at least one arm when the trigger is actuated, the housing includes a first control surface, such as a rib proximate the arm.

A tissue thickness compensator can comprise a compensator body and at least one vessel contained in the compensator body. The vessel can define an inner cavity which can comprise an inner atmosphere having a pressure which is lower than the atmospheric pressure of the atmosphere surrounding the tissue thickness compensator. In at least one embodiment, the vessel and the compensator body can be maintained in a collapsed state until staples are fired through the vessel. At such point, the vessel can re-expand and apply a biasing force to tissue captured within the staples.

An end effector for use by a surgeon to staple an anatomical structure of a patient during a minimally invasive procedure includes a first jaw and a second jaw. The first jaw has a first end, a second end, a longitudinal axis, and an anvil, which has an anvil face positionable on a first side of the anatomical structure. The second jaw has a first end, a second end, a longitudinal axis, and a cartridge, which has a cartridge face positionable on a second side of the anatomical structure. The end effector includes a first coupling that couples the first end of the first jaw to the first end of the second jaw; and a second coupling that movably couples the second end of the first jaw to the second end of the second jaw and includes a rigid link connected to the first jaw and the second jaw.

A staple cartridge assembly comprising a tissue thickness compensator is disclosed. The tissue thickness compensator comprises a first fibrous, woven material and a second fibrous, woven material. The first fibrous, woven material comprises a density which is different than the density of the second fibrous, woven material. The tissue thickness compensator is configured to expand upon contact with a fluid in order to apply a compressive force to tissue captured within staples.

A method of homing a drive input of a robotic surgical tool includes recording and storing a home position of the drive input in a memory included in the robotic surgical tool, establishing a slow zone for the drive input encompassing a known angular magnitude away from the home position, storing the slow zone in the memory, rotating the drive input toward the home position, and slowing a rotation speed of the drive input upon reaching the slow zone.

A forceps having a first jaw and a second jaw, where at least one of the first and second jaws is capable of moving between an open position and a closed positions. The forceps including an inner shaft located within an outer shaft and extending along the longitudinal axis, and a drive bar coupled to and extending distally from the inner shaft. The drive bar including a pair of drive bar struts extending from a distal portion of the inner shaft and positioned laterally inward of at least one of first and second set of flanges of the first and second jaws. A drive pin is securable to the pair of drive bar struts and the drive bar is translatable within the outer shaft to translate the drive pin to move the first jaw and/or the second jaw between open and closed positions.

A surgical tool for a surgical robotic system, the surgical tool comprising: a surgical tool grasper having a jaw operable to perform a surgical procedure; a handle coupled to the surgical tool grasper and having a lever operable to actuate the jaw; and an actuation combiner mechanism coupled to the lever and operable to combine an actuation force output of the lever with an actuation force output of a motor to control the operation of the jaw or the lever.