Abstract: A surgical access device includes a cannula body and a fixation mechanism. The fixation mechanism includes a collar, a driver, a distal ring, a proximal ring, and a plurality of petals. The driver extends distally from the collar, and the distal ring is operatively engaged with a distal portion of the driver. The proximal ring at least partially surrounds an elongated portion of the cannula body and is disposed proximally of the distal ring. The plurality of petals extends proximally from the distal ring and is longitudinally translatable relative to the proximal ring. Longitudinal translation of the collar causes the plurality of petals to move between a first position defining a first gap between a proximal end of the plurality of petals and the elongated portion, and a second position defining a second, greater gap between the proximal end of the plurality of petals and the elongated portion.

Abstract: A surgical access device includes a cannula, an instrument housing coupled to the cannula, a port coupled to the instrument housing, and a valve disposed within the port. The cannula includes an elongated shaft defining an access lumen and an inflation lumen therethrough. The port includes an inflation channel and an insufflation channel defined therethrough. The inflation channel is in fluid communication with the inflation lumen of the cannula and the insufflation channel is in fluid communication with the access lumen of the cannula. The valve is movable within the port between an inflation position in which a passageway defined through the valve is aligned with the inflation channel of the port, and an insufflation position in which the passageway of the valve is aligned with the insufflation channel of the port.

Abstract: A surgical access device including a cannula body and a fixation mechanism is disclosed. The cannula body includes a housing, and an elongated portion extending distally from the housing and defining a longitudinal axis. The fixation mechanism includes a sleeve and a spring. The sleeve radially surrounds a portion of the elongated portion of the cannula body. The sleeve is rotatable about the longitudinal axis relative to the elongated portion of the cannula body, and the sleeve is longitudinally translatable relative to the elongated portion of the cannula body. A first portion of the spring is engaged with the sleeve, and a second portion of the spring engaged with a distal portion of the elongated portion of the cannula body. Rotation of the sleeve about the longitudinal axis relative to the elongated portion of the cannula body causes a portion of the spring to move away from the longitudinal axis.

Abstract: A surgical access assembly includes a cannula including an elongated shaft and a retention anchor movably positionable along the elongated shaft. The retention anchor includes an annular body and a fixation body. The annular body includes a proximally-facing surface, a distally-facing surface, an inner side surface defining an opening therethrough, and an outer side surface. The fixation body includes a disc secured to the distally-facing surface of the annular body and wings extending radially outwardly from the disc beyond the outer side surface of the annular body. The disc defines an opening therethrough and the elongated shaft extends through the openings in the annular body and the fixation body.

Abstract: A surgical access device includes a cannula body and a fixation mechanism. The cannula body includes a housing, and an elongated portion extending distally from the housing and defining a longitudinal axis. The fixation mechanism includes a flange, a fixation sleeve, and a proximal sleeve. The flange is rotatable about the longitudinal axis. The fixation sleeve extends distally from the flange and radially surrounds a portion of the elongated portion of the cannula body. The proximal sleeve extends distally from the flange and radially surrounds a proximal portion of the fixation sleeve. Rotation of the flange causes a radially-expandable portion of the fixation sleeve to move between a first position defining a first gap between the radially-expandable portion and the elongated portion, and a second position defining a second, greater, gap between the radially-expandable portion and the elongated portion.

Abstract: Specimen retrieval bags, specimen retrieval devices, specimen retrieval systems, and specimen retrieval methods that are configured to facilitate the isolated removal of a tissue specimen from an internal body cavity such as, for example, during a minimally invasive surgical procedure.

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. The seal assembly includes a proximal seal member, an intermediate seal assembly, and a distal seal member, the intermediate seal assembly including a plurality of seal sections in a stacked configuration.

Abstract: A retention mechanism for a surgical access assembly is provided. The retention mechanism includes a planar base having first and second extensions each with a free end, a first locking member disposed on the free end of the first extension, and a second locking member disposed on the free end of the second extension. The first locking member includes a U-shaped body having a first set of opposed, inwardly facing teeth. The second locking member includes a U-shaped body having a first set of opposed, outwardly facing teeth configured engage the first set of opposed, inwardly facing teeth when the retention mechanism is in a locked condition. The first set of opposed, inwardly facing teeth and the first set of opposed, outwardly facing teeth are configured to be spaced apart from each other when the retention mechanism is in an unlocked condition.

Abstract: A surgical access device includes a cannula body and a fixation mechanism. The cannula body includes a housing, and an elongated portion extending distally from the housing and defining a longitudinal axis. The fixation mechanism includes a flange, a fixation sleeve, and a proximal sleeve. The flange is rotatable about the longitudinal axis. The fixation sleeve extends distally from the flange and radially surrounds a portion of the elongated portion of the cannula body. The proximal sleeve extends distally from the flange and radially surrounds a proximal portion of the fixation sleeve. Rotation of the flange causes a radially-expandable portion of the fixation sleeve to move between a first position defining a first gap between the radially-expandable portion and the elongated portion, and a second position defining a second, greater, gap between the radially-expandable portion and the elongated portion.

Abstract: A surgical access assembly includes a cannula and a retention anchor including an annular body and a washer secured to the annular body. The annular body includes an inner side surface defining an opening therethrough, and the washer includes an inner terminal edge defining an opening therethrough that is aligned with the opening of the annular body. The elongated shaft of the cannula extends through the openings. The washer is transitionable between a first configuration in which the inner terminal edge of the washer is coincident with or disposed radially outwardly of the inner side surface of the annular body so that the retention anchor is slidable along the elongated shaft, and a second configuration in which the inner terminal edge of the washer extends radially inwardly of the inner side surface of the annular body and engages the elongated shaft to fix the retention anchor to the elongated shaft.

Abstract: A surgical robotic system includes a surgical robotic arm and a surgical instrument configured to couple to the surgical robotic arm. The surgical robotic arm has a housing and a pulley rotationally supported in a distal end portion of the housing. The surgical instrument has a housing and a gear rotationally supported in a proximal end portion of the housing thereof. The gear is configured to operably couple to the pulley of the surgical robotic arm to transfer rotational motion from the pulley of the surgical robotic arm to a functional component of the surgical instrument.

Abstract: A surgical access assembly including an elongated cannula member having proximal and distal end portions, a cannula housing coupled to the proximal end portion of the elongated cannula member, a balloon anchor coupled to the distal end portion of the elongated cannula member, and a collar disposed along the elongated cannula member and in fluid communication with the balloon anchor. The collar includes a first check valve and a manually actuatable pump. The first check valve is configured to control flow of air into the balloon anchor. The manually actuatable pump is coupled to the first check valve.

Abstract: A surgical access device including a cannula body and an anchor is disclosed. The cannula body includes a housing, and an elongated portion extending distally from the housing. The elongated portion defines a longitudinal axis and defines a channel extending therethrough. The anchor is disposed in mechanical cooperation with the elongated portion of the cannula body and is longitudinally translatable relative to the elongated portion. The anchor defines an aperture and includes a ratchet mechanism configured to selectively lock a size of the aperture.

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: A surgical access device including a cannula body and a fixation mechanism is disclosed. The cannula body includes a housing, and an elongated portion extending distally from the housing and defining a longitudinal axis. The fixation mechanism includes a sleeve and a spring. The sleeve radially surrounds a portion of the elongated portion of the cannula body. The sleeve is rotatable about the longitudinal axis relative to the elongated portion of the cannula body, and the sleeve is longitudinally translatable relative to the elongated portion of the cannula body. A first portion of the spring is engaged with the sleeve, and a second portion of the spring engaged with a distal portion of the elongated portion of the cannula body. Rotation of the sleeve about the longitudinal axis relative to the elongated portion of the cannula body causes a portion of the spring to move away from the longitudinal axis.

Abstract: A cannula assembly includes an elongate shaft assembly that is adjustable by a clinician to vary the length of the cannula assembly. In particular, the elongate shaft assembly may be transitioned to provide various lengths of the cannula assembly by selectively positioning a plurality of segments of the elongate shaft assembly. In this manner, a single cannula assembly may be tailored to each patient or a surgical procedure being performed.

Abstract: A surgical access assembly includes a cannula and a retention anchor including an annular body and a washer secured to the annular body. The annular body includes an inner side surface defining an opening therethrough, and the washer includes an inner terminal edge defining an opening therethrough that is aligned with the opening of the annular body. The elongated shaft of the cannula extends through the openings. The washer is transitionable between a first configuration in which the inner terminal edge of the washer is coincident with or disposed radially outwardly of the inner side surface of the annular body so that the retention anchor is slidable along the elongated shaft, and a second configuration in which the inner terminal edge of the washer extends radially inwardly of the inner side surface of the annular body and engages the elongated shaft to fix the retention anchor to the elongated shaft.

Abstract: A surgical access system includes a clip, a cannula, and an obturator. The clip includes a first housing half and a second housing half. The first and second housing halves have first end portions pivotably coupled together and second end portions having respective first and second fastener portions. The clip is movable between an open position in which the second end portions are spaced apart from each other and a closed position in which the first and second fastener portions of the second end portions are engaged with each other. The cannula and the obturator are retained between the first and second housing halves when the clip is in the closed position.

Abstract: A surgical access device includes a cannula body and an anchor. The cannula body includes a housing, and an elongated portion extending distally from the housing. The elongated portion defines a longitudinal axis and defines a channel extending therethrough. The anchor is disposed in mechanical cooperation with the elongated portion of the cannula body and is longitudinally translatable relative to the elongated portion. The anchor defines an aperture and includes a ratchet mechanism configured to selectively lock a size of the aperture.

Abstract: A surgical access assembly includes a cannula including an elongated shaft having a proximal end portion including an anchor inflation port and a distal end portion including an expandable anchor. The elongated shaft includes an inner tube and an outer tube disposed over the inner tube. The inner tube includes at least one groove defined in an outer surface thereof that forms an inflation channel with an inner surface of the outer tube. The inflation channel is in communication with the anchor inflation port and the expandable anchor.