Abstract: An access assembly includes an instrument valve housing and a valve assembly disposed within the instrument valve housing. The instrument valve housing includes upper and lower housing sections. The valve assembly includes a centering mechanism, a seal assembly, and a guard assembly. The centering mechanism is configured to bias the valve assembly towards a generally centered position within the instrument valve housing. The centering mechanism includes a base seal member having an annular base and a flange portion. The flange portion includes an arcuate portion configured to adjustably engage first and second surfaces of the instrument valve housing in a sealing relation. The seal assembly is attachable to the centering mechanism. The seal assembly is configured to engage a surgical instrument inserted into the access assembly in a sealing relation. The guard assembly is attachable to the centering mechanism.

Abstract: An access assembly includes an instrument valve housing defining a cavity, and a valve assembly. The valve assembly includes a flange seal member, a seal assembly, a centering mechanism, and a retainer frame assembly. The flange seal member includes an arcuate portion configured to adjustably engage first and second surfaces of the instrument valve housing in a sealing relation. The centering mechanism is configured to bias the valve assembly towards a generally centered position within the cavity. The centering mechanism includes a plurality of coils including inner coil portions operatively secured with the seal assembly, and outer coil portions configured to engage the first surface of the instrument valve housing. The retainer frame assembly includes first and second members. The inner coil portion of the centering mechanism is disposed between seal assembly and the second member of the retainer frame assembly.

Abstract: A surgical port includes a shell and a seal assembly. The shell has a housing and a cannula that extends from the housing. The housing has a sidewall defining a window therethrough. The seal assembly includes one or more seals. The seal assembly is selectively receivable into the housing through the window of the housing of the shell.

Abstract: A surgical instrument includes a handle assembly, an elongated shaft, an end effector, and an evacuation port. The elongated shaft extends distally from the handle assembly and includes an outer wall. The end effector is coupled to a distal portion of the elongated shaft. The evacuation port is configured for fluid communication with a suction device. A portion of the evacuation port is disposed within the outer wall of the elongated shaft.

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 central spline extending in a radial direction and plurality of concentric ribs extending outwardly from the central spline.

Abstract: Surgical 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 seal assembly includes a multi-petal seal member and upper and lower support members. The upper and lower support members sandwich the multi-petal seal member therebetween to reduce and/or eliminate leaks through the multi-petal seal member.

Abstract: Access assemblies include an instrument valve housing and a valve assembly. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a gimbal mount assembly supporting the guard assembly and the seal assembly. The gimbal mount assembly is configured to permit angulation of the valve assembly relative to 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, 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: A surgical access assembly includes an instrument valve housing and a valve assembly disposed within a 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 the cavity of the instrument valve. The guard assembly includes first and second guard members.

Abstract: A surgical access assembly includes a cannula, a valve housing attached to the cannula, and a valve assembly positioned in the valve housing. The valve assembly includes a centering mechanism with a hoop and fingers, a ring with a flange at one end of the ring, a retainer having first and second discs, a guard having a frame and flaps attached to the frame, and a seal with petals attached to a support. The guard is at least partially disposed in the first disc and the seal is at least partially disposed in the second disc.

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 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 ligation clip defines a longitudinal axis includes a first jaw, a second jaw, and a hinge portion that pivotably couples the first jaw to the second jaw. The first jaw has a first clamping surface that supports first ribs that defines an angle ? with the longitudinal axis. The second jaw has a second clamping surface in opposition to the first clamping surface and supports second ribs that define the angle ? with the longitudinal axis. Each of the first and second ribs includes a distal wall and a proximal wall and a wall in opposition to the opposing clamping surface. The distal wall of at least some of the first ribs is positioned in close proximity to the proximal wall of a respective one of the second ribs when the ligation clip is in the clamped position.