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.

A surgical clip applier having a housing containing a compartment, an elongated member extending distally from the housing, and first and second jaws configured to close a clip. An advancer is positioned within the housing movable between a first retracted position and a second advanced position, wherein in the second position, the advancer effects closing of the jaws to close the clip. A cover on the housing is openable to access the compartment within the housing. A power pack is removably loadable into the compartment and has a motor and an engagement member removably engageable with the advancer within the housing when the power pack is loaded into the compartment to effect movement of the advancer from the first position to the second position. A feed mechanism for feeding a clip into the jaws can be motor actuated.

A surgical stapling assembly is disclosed that comprises a retainer that is configured to be removably mounted to a staple cartridge that is configured to be operably seated in a stapling device. The retainer comprises an authentication key that is configured to defeat a first firing member lockout provided the stapling device. The stapling device further comprises a second lockout that is configured to prevent the firing member of the device from advancing through a staple firing stroke when a spent staple cartridge is seated in said stapling device.

A retainer for use with a staple cartridge that is configured for use with a surgical stapling device is disclosed. The retainer comprises a retainer body that is configured to be received on the staple cartridge. A plurality of retention features protrude from the retainer body for releasable engagement with the staple cartridge to form a cartridge assembly. The retainer further comprises an authentication key that is configured to defeat a lockout in the surgical stapling device when the cartridge assembly is seated therein. At least one of the retention features is configured to be removed from the retainer body after the retainer has been removed from the staple cartridge.

A surgical stapling device includes an elongate member and a loading unit. The loading unit includes a tool portion and a body portion including a first portion having a first length, a second portion having a second length, and a third portion having a third length. The first portion is configured to be releasably secured with the elongate member. The second portion is distal of the first portion and dimensioned to be received in the elongate member. The third portion is distal of the second portion. At least the second or third portion is configured to engage the elongate member in a sealing relation. The second length is greater than the first and third lengths. The third portion of the body portion is dimensioned to be flush with the elongate member when the first and second portions are received in the elongate member.

A surgical instrument for treating the stomach tissue of a patient is disclosed. The surgical instrument comprises a handle comprising a display, a shaft extending from the handle, and an end effector extending from said shaft. The surgical system comprises a tissue treatment system configured to treat the stomach tissue along a path, an imaging system configured to capture a tissue image of the stomach tissue, and a controller configured to determine an edge of the stomach tissue, generate an image representing at least a portion of the edge of the stomach tissue, and display the image along with at least a portion of the tissue image on the display.

A staple cartridge is disclosed. The staple cartridge can comprise a cartridge body comprising a deck and a bottom surface opposite the deck. The staple cartridge can comprise a plurality of staple cavities, wherein each staple cavity extends into the cartridge body from the deck to the bottom surface. Additionally, a plurality of wells can be defined into the staple cartridge from the deck to a lowermost surface of the well. A plurality of staples can be removably positioned in the staple cavities. The staple cartridge can comprise a tissue thickness compensator releasably secured to the cartridge body, wherein the tissue thickness compensator comprises a compensator body and a plurality of extensions extending from the compensator body into the wells, wherein at least one extension is compressed within one of the wells. Each well can surround at least one staple cavity and/or can extend between at least two staple cavities.

A surgical stapler that includes a body, a shaft extending from the body, and an end effector in communication with the shaft. The end effector is operable to compress, staple, and cut tissue. The end effector includes a first jaw; a second jaw opposed from the first jaw, and a tip member. The first and second jaws are operable to transition from an open state to a closed state to clamp tissue therebetween. The tip member is coupled with a distal end of the first jaw. The tip member is selectively rotatable along a rotation axis to toggle between a first discrete position and a second discrete position. The tip member in the first discrete position is configured to assume a first orientation relative to the second jaw, and the tip member in the second discrete position is configured to assume a second orientation relative to the second jaw.

A stapling system that comprises a retainer for use with staple cartridges that are configured for use with multiple surgical stapling devices that comprise different lockout arrangements is disclosed. The retainer is configured to be releasably attached to a staple cartridge to form a cartridge assembly. The retainer comprises an authentication key that is configured to defeat a lockout arrangement in any one of the surgical stapling devices in which the cartridge assembly is seated.

A surgical instrument comprising a shaft, an end effector, and an articulation joint is disclosed. The end effector is rotatably connected to the shaft about the articulation joint, wherein the end effector is rotatable between a first orientation and a second orientation, wherein the shaft comprises a longitudinal axis and the end effector comprises a tissue gap, wherein the tissue gap faces the longitudinal axis when the end effector is in its first orientation, and wherein the tissue gap extends at an angle relative to the longitudinal axis when the end effector is in its second orientation. The surgical instrument further comprises an articulation drive system configured to articulate the end effector relative to the shaft and a dampener configured to prevent the end effector from being back-driven from its second orientation into its first orientation.