Patent ID: 11896263
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A surgical access device, comprising:
a cannula body including a housing and an elongated portion extending distally from the housing, the elongated portion defining a longitudinal axis and defining a channel; and
a fixation mechanism disposed in mechanical cooperation with the elongated portion of the cannula body, the fixation mechanism including:
a collar at least partially surrounding a portion of the elongated portion of the cannula body and being longitudinally translatable relative to the elongated portion of the cannula body;
a driver extending distally from the collar;
a distal ring operatively engaged with a distal portion of the driver;
a proximal ring at least partially surrounding the elongated portion of the cannula body and disposed proximally of the distal ring; and
a plurality of petals extending proximally from the distal ring, and longitudinally translatable relative to the proximal ring,

wherein longitudinal translation of the collar relative to the elongated portion of the cannula body 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 of the cannula body, and a second position defining a second gap between the proximal end of the plurality of petals and the elongated portion of the cannula body, the second gap being greater than the first gap, at least one petal of the plurality of petals including a hook configured to engage the proximal ring when the plurality of petals is in the first position.