A surgical instrument includes a first and second jaw actuatable between an open and closed position, a buttress assembly having a compressible material, and a fastener assembly associated with the second jaw. The fastener assembly and the buttress assembly may cooperatively grasp tissue while the first and second jaws are in the closed position. The fastener assembly includes a deck defining a plurality of openings and a plurality of fasteners each housed within a respective opening of the plurality of openings. Each fastener can actuate out of the respective opening and into the buttress assembly. Each fastener includes a first leg having a piercing tip, and an attachment feature associated with the first leg. The attachment feature can engage the buttress assembly to couple the first leg with the buttress assembly without bending a portion of the first leg associated with the piercing tip.

An adjunct configured for use with an end effector of a surgical stapler includes a plurality of resiliently compressible elements interconnected with each other. The adjunct also includes a tissue-engaging face configured to contact tissue clamped by the end effector during closure thereof, and a stapler-engaging face configured to be releasably secured to a stapling surface of the end effector. Each resiliently compressible element of the plurality of resiliently compressible elements includes a hollow interior and an open end at one of the tissue-engaging or stapler-engaging faces. The hollow interior expands outwardly toward the open end. Each resiliently compressible element of the plurality of resiliently compressible elements is configured to be captured and compressed by a corresponding staple ejected from the end effector into the clamped tissue and thereby reinforce the engagement between the ejected staples and the clamped tissue.

An end effector of a surgical stapling instrument is disclosed. The end effector comprises a staple cartridge and an anvil jaw comprising a tissue compression surface. The staple cartridge jaw comprises a deck, staple cavities, and staples stored in the staple cavities. The deck comprises first and second deck portions. A first tissue gap is defined between the first deck portion and the tissue compression surface when the end effector is in a closed configuration. A second tissue gap is defined between the second deck portion and the tissue compression surface when the end effector is in the closed configuration. The second tissue qap is larger than the first tissue gap. The second deck portion at least partially surrounds the staple cavities and is positioned vertically below the first deck portion. A distinct gap is defined between the first and second deck portions.

A surgical instrument includes a body assembly, a shaft assembly extending distally from the body assembly, an anvil, and a stapling head assembly. The stapling head assembly includes at least one annular array of staples, a staple driver, and a trocar. The trocar includes a shaft defining a longitudinal axis, an actuating feature coupled with a motor unit, and at least one coupling feature. The motor unit is configured to actuate the actuating feature to move the at least one coupling feature of the trocar in a transverse direction relative to the longitudinal axis of the shaft between a contracted position and an expanded position. In the contracted position, the shaft of the trocar is configured to move along the longitudinal axis relative to the anvil. In the expanded position, the shaft of the trocar is configured to move together with the anvil along the longitudinal axis.

A surgical stapler for stapling the tissue of a patient is disclosed. The surgical stapler comprises a handle, a shaft extending from the handle, and an end effector. The end effector comprises a tissue compression surface, a plurality of staples, and an anvil comprising staple forming pockets, wherein the anvil is movable toward the tissue compression surface during a closing stroke to clamp the patient tissue against and tissue compression surface. The surgical stapler further comprises an anvil closing system configured to move the anvil through the closing stroke, a staple firing system configured to deploy the staples during a staple firing stroke, and means for clamping and holding the patient tissue during the staple firing stroke and moving the end effector relative to the patient tissue after the staple firing stroke.

A device for securing an article to a tissue may include a body, transitionable from a deployment state to a securing state, having a first portion, a second portion, and a medial portion therebetween. The first portion and the second portion may each have an end configured to pierce the tissue. The device in the deployment state may have a linearly extended or a U-shaped structure. In the securing state, the first portion may be embedded in the tissue and the medial portion may contact the article. A system for securing the article to the tissue may releasably engage the device while in the deployment state. A method for securing the article may include contacting the article with a tissue surface and releasing the device from the system so that the device, in the securing state, may anchor the article to the tissue.

An endoscopic surgery system includes a plurality of staples and an endoscopic applicator having a staple cartridge for loading transversely arranged staples. The staples have a central region and two side limbs and the applicator has a mobile body for holding a staple to be applied, the staple being arranged in a transverse plane, and for ensuring the deformation of same by bending in relation to the axis of symmetry of the staple.

A surgical instrument includes an end effector including a first jaw having a plurality of pockets and a second jaw. The first and second jaws are operable to clamp tissue therebetween. The surgical instrument also includes a stapling assembly supported by the second jaw of the end effector. The stapling assembly includes a deck, a plurality of staple openings extending through the deck, and a plurality of staples slidably housed within corresponding staple openings. Each staple has a respective pair of legs configured to be driven into contact with a corresponding pocket. The surgical instrument further includes a plurality of staple leg constraints. Each staple leg constraint is aligned with and extends at least partially across a corresponding staple opening for guiding a respective leg of the corresponding staple toward the corresponding pocket.

The present invention discloses a surgical stapler instrument. The surgical stapler instrument comprises a handle assembly having a proximal end and a distal end. A bottom jaw is detachably coupled to the distal end of the handle assembly. The bottom jaw having a staple cartridge surface, configured to eject one or more staples. Further, a top jaw is detachably coupled to the bottom jaw toward the distal end of the handle assembly. The top jaw comprises a staple pocket disposed over an anvil surface of the top jaw and configured to bend the ejected one or more staples and deliver into targeted tissues. An effective friction coefficient (μe) of the staple pocket of the top jaw is lower than the staple cartridge surface of the bottom jaw to achieve optimized stapling.

A surgical stapler for stapling the tissue of a patient is disclosed. The surgical stapler comprises a handle, a shaft extending from the handle, a plurality of staple clusters, and an end effector. The end effector comprises a tissue compression surface and an anvil movable toward the tissue compression surface during a closing stroke, an anvil closing system configured to move the anvil through the closing stroke, and a staple firing system configured to deploy a staple cluster positioned in the end effector during a staple firing stroke. The surgical stapler further comprises a tissue cutting system configured to cut the patient tissue during a tissue cutting stroke and a propulsion system configured to move the end effector relative to the patient tissue during a propulsion stroke.