Thoracic access assembly

摘要

A surgical access assembly for accessing a cavity of a patient includes a proximal frame member, a distal frame member, and a membrane between the proximal and distal frame members. The proximal frame member is positionable adjacent an external surface of tissue and has first and second frame portions movable between a contracted condition and an expanded condition to expand an opening defined therethrough. The membrane defines a loop disposed about at least a portion of the proximal frame member at a proximal end thereof and is engaged to the distal frame member at a distal end thereof. The membrane is transitionable between a crumpled condition and an extended condition upon transitioning of the proximal frame member between the contracted condition and the expanded condition.

主权项

1. A surgical access assembly for accessing a cavity of a patient, comprising:
a proximal frame member configured for positioning adjacent an external surface of tissue, the proximal frame member defining a proximal opening therethrough, the proximal frame member including an upper component and a lower component, each of the upper and lower components including a first U-shaped member and a second U-shaped member; a distal frame member configured for positioning adjacent an internal surface of tissue, the distal frame member defining a distal opening therethrough; and a membrane extending between the proximal frame member and the distal frame member, the membrane having a distal end coupled to the distal frame member and a proximal end disposed between the upper and lower components of the proximal frame member, wherein the first U-shaped members of the upper and lower components of the proximal frame member are engaged to one another in snap-fit relation fixedly securing a first section of the membrane therebetween, wherein the second U-shaped members of the upper and lower components of the proximal frame member are engaged to one another in snap-fit relation fixedly securing a second section of the membrane therebetween, and wherein the first U-shaped members and the second U-shaped members are selectively repositionable relative to one another between a contracted condition, wherein the proximal opening defines a first length, and an expanded condition, wherein the proximal opening defines a second length greater than the first length.