MICRO-ORIFICE SURGICAL ACCESS SYSTEM

摘要

A surgical access system including an access port device. The port device has a port member, a plurality of blades, and an articulation mechanism. The blades are circumferentially arranged about a longitudinal axis of the port member to collectively define an access region. The articulation mechanism defines a pivot point along a length of each blade, and is operable to articulate the blades between collapsed and expanded states. The blade tips collectively define a diameter in the collapsed state that is less than that in the expanded state. The blades rotate about the corresponding pivot point, and the pivot points move longitudinally relative to the port member, in transitioning between the contracted and expanded states. Light source(s) can be integrated with the blades or separately provided to enhance surgical field visibility.

主权项

1. A surgical access system comprising:
a port access device including:
a port member defining a central passageway extending along a longitudinal axis;a plurality of blades circumferentially arranged about the longitudinal axis to collectively define an access region open to and extending distally from the central passageway, wherein each of the blades terminates at a tip opposite the port member; andan articulation mechanism configured to define a first pivot point along a length of each of the blades, the articulation mechanism being operable to articulate the blades between:
a collapsed state in which the tips collectively define a first diameter,an expanded state in which the tips collectively define a second diameter greater than the first diameter,wherein the articulation mechanism is configured such that the blades rotate about the corresponding first pivot point, and the first pivot points move longitudinally relative to the port member, in transitioning between the collapsed and expanded states.