Abstract: A surgical instrument including a system for stopping a beam of the surgical instrument from impacting a distal pin when reversing a knife is disclosed. A knife assembly of the surgical instrument comprises the knife, the beam, and a firing nut. A firing lead screw can drive the firing nut distally and proximally. A firing screw compression spring extends along the firing lead screw and applies a load proximally on the firing nut when the firing nut is driven toward a distal end of the firing lead screw.

Abstract: A system for preventing unwanted tissue migration in surgical staplers includes a surgical stapler having an end effector including an upper jaw and a lower jaw. A distal end of the upper jaw is connected to a distal end of the lower jaw, and a proximal end of the upper jaw is connected to a proximal end of the lower jaw. First and second tissue stops are formed on the distal and proximal ends of the lower jaw, respectively. The second tissue stop and the proximal end of the upper jaw define a no cut zone when the surgical stapler is in an open position. The surgical stapler also includes a tissue cutting device disposed within the lower jaw for resecting tissue. The system also includes a warning, blocking, impeding, or barrier forming device for preventing the unwanted migration of tissue into the no tissue zone.

Abstract: A buttress device includes an applicator assembly including an applicator body, the applicator body being flexible, and a release liner. The release liner is coupled to the applicator body. The buttress device includes a buttress positioned on the applicator body, and a buttress fastener, the buttress fastener configured to couple the buttress to an end effector. The buttress fastener is configured to be releasably fastened to the release liner. The buttress device has a first configuration in which the buttress is coupled to the applicator assembly, and a second configuration in which the buttress is uncoupled from the applicator assembly, wherein the sacrificial tab is removed from the applicator assembly in the second configuration.

Abstract: A surgical instrument including a system for stopping a beam of the surgical instrument from impacting a distal pin when reversing a knife is disclosed. A knife assembly of the surgical instrument comprises the knife, the beam, and a firing nut. A firing lead screw can drive the firing nut distally and proximally. A firing screw compression spring extends along the firing lead screw and applies a load proximally on the firing nut when the firing nut is driven toward a distal end of the firing lead screw.

Abstract: A buttress device includes an applicator assembly including an applicator body, the applicator body being flexible, and a release liner. The release liner is coupled to the applicator body. The buttress device includes a buttress positioned on the applicator body, and a buttress fastener, the buttress fastener configured to couple the buttress to an end effector. The buttress fastener is configured to be releasably fastened to the release liner. The buttress device has a first configuration in which the buttress is coupled to the applicator assembly, and a second configuration in which the buttress is uncoupled from the applicator assembly, wherein the sacrificial tab is removed from the applicator assembly in the second configuration.

Abstract: A buttress device includes an applicator assembly including an applicator body, the applicator body being flexible, and a release liner, the release liner comprising a sacrificial tab. The release liner is coupled to the applicator body. The buttress device includes a buttress positioned on the applicator body, and a buttress fastener, the buttress fastener configured to couple the buttress to an end effector. The buttress fastener is configured to be releasably fastened to the release liner. The buttress device has a first configuration in which the buttress is coupled to the applicator assembly, and a second configuration in which the buttress is uncoupled from the applicator assembly, wherein the sacrificial tab is removed from the applicator assembly in the second configuration.

Abstract: A buttress device includes an applicator assembly including an applicator body, the applicator body being flexible, and a release liner, the release liner comprising a sacrificial tab. The release liner is coupled to the applicator body. The buttress device includes a buttress positioned on the applicator body, and a buttress fastener, the buttress fastener configured to couple the buttress to an end effector. The buttress fastener is configured to be releasably fastened to the release liner. The buttress device has a first configuration in which the buttress is coupled to the applicator assembly, and a second configuration in which the buttress is uncoupled from the applicator assembly, wherein the sacrificial tab is removed from the applicator assembly in the second configuration.

Abstract: A system for preventing unwanted tissue migration in surgical staplers includes a surgical stapler having an end effector including an upper jaw and a lower jaw. A distal end of the upper jaw is connected to a distal end of the lower jaw, and a proximal end of the upper jaw is connected to a proximal end of the lower jaw. First and second tissue stops are formed on the distal and proximal ends of the lower jaw, respectively. The second tissue stop and the proximal end of the upper jaw define a no cut zone when the surgical stapler is in an open position. The surgical stapler also includes a tissue cutting device disposed within the lower jaw for resecting tissue. The system also includes a warning, blocking, impeding, or barrier forming device for preventing the unwanted migration of tissue into the no tissue zone.

Abstract: A system for preventing unwanted tissue migration in surgical staplers includes a surgical stapler having an end effector including an upper jaw and a lower jaw. A distal end of the upper jaw is connected to a distal end of the lower jaw, and a proximal end of the upper jaw is connected to a proximal end of the lower jaw. First and second tissue stops are formed on the distal and proximal ends of the lower jaw, respectively. The second tissue stop and the proximal end of the upper jaw define a no cut zone when the surgical stapler is in an open position. The surgical stapler also includes a tissue cutting device disposed within the lower jaw for resecting tissue. The system also includes a warning, blocking, impeding, or barrier forming device for preventing the unwanted migration of tissue into the no tissue zone.

Abstract: A system for preventing unwanted tissue migration in surgical staplers includes a surgical stapler having an end effector including an upper jaw and a lower jaw. A distal end of the upper jaw is connected to a distal end of the lower jaw, and a proximal end of the upper jaw is connected to a proximal end of the lower jaw. First and second tissue stops are formed on the distal and proximal ends of the lower jaw, respectively. The second tissue stop and the proximal end of the upper jaw define a no cut zone when the surgical stapler is in an open position. The surgical stapler also includes a tissue cutting device disposed within the lower jaw for resecting tissue. The system also includes a warning, blocking, impeding, or barrier forming device for preventing the unwanted migration of tissue into the no tissue zone.

Abstract: Systems and methods for reducing insufflation loss due to gas leakage during a laparoscopic surgical procedure are provided. The surgical procedure includes the use of a surgical instrument having an end effector and a trocar through which the surgical instrument is inserted for access to the abdominal cavity of a patient receiving laparoscopic surgery. The trocar includes a lip, a lip seal disposed within the lip, and a cannula located beneath the lip. The systems and methods reduce or prevent a loss of insufflation when using conventional systems and methods to insert the surgical instrument through a conventional trocar.