Abstract: Access assemblies includes an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, and a seal assembly disposed distal of the guard assembly. In embodiments, the seal assembly includes a plurality of seal segments in an overlapping configuration. Each seal segment of the plurality of seal segments includes a seal portion having a smooth surface and a ribbed surface. The ribbed surfaces include a plurality of ribs extending in a radial direction.

Abstract: Access assemblies include an instrument valve housing and a valve assembly disposed within a cavity of the instrument valve housing. The valve assembly includes a guard assembly, and a seal assembly disposed adjacent to the guard assembly. The seal assembly includes first, second, third, and fourth seal sections. The first seal section is nested within the second seal section, the first and second seal sections are nested within the third seal section, and the first, second, and third seal sections are nested within the fourth seal section.

Abstract: Access assemblies includes an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. In embodiments, the seal assembly includes a plurality of seal sections that are movable from an unfolded configuration to folded configuration in which the seal assembly forms a hexagonal member defining an opening to facilitate sealed passage of a surgical instrument. The seal sections may include a tapered inner edge for engaging a surgical instrument inserted through the instrument valve housing.

Abstract: Access assemblies includes an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. In embodiments, the seal assembly includes a plurality of seal sections that are movable from an unfolded configuration to folded configuration in which the seal assembly forms a hexagonal member defining an opening to facilitate sealed passage of a surgical instrument. The seal sections may include a tapered inner edge for engaging a surgical instrument inserted through the instrument valve housing.

Abstract: Access assemblies include an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. The guard assembly includes a support ring and a plurality of guard sections disposed distally of the support ring.

Abstract: A cannula includes an instrument valve housing and a valve assembly disposed within the instrument valve housing. The valve assembly includes a seal assembly having at least one seal member including a ring portion and a septum seal extending across the ring portion. The valve assembly further includes a guard assembly and a centering mechanism. The guard assembly includes a plurality of guard members. Each guard member includes a ring portion, and a flap portion having first and second flap sections and a groove disposed between the first and second flap sections. The centering mechanism includes an annular ring and a plurality of spokes extending outwardly from the annular ring. The assemblies are supported within the annular ring which is disposed within the instrument valve housing. The flap portions of the guard members are configured to engage and stretch the septum seal during reception of a surgical instrument through the valve assembly.

Abstract: A suture passer includes a handle assembly, a shaft extending distally from the handle assembly, an end effector assembly coupled to a distal end portion of the shaft, and an overstroke assembly. The overstroke assembly effects an opening and a closing of the end effector assembly while also preventing an overstroke of the handle assembly from damaging components of the suture passer.