CPC A61B 17/0218 (2013.01) [A61B 17/02 (2013.01); A61B 17/3423 (2013.01); A61B 2017/0212 (2013.01); A61B 2017/0225 (2013.01); A61B 2017/349 (2013.01); A61B 2017/3492 (2013.01); A61B 2090/401 (2016.02); A61B 2217/005 (2013.01)] | 24 Claims |
1. A wound retractor configured to be inserted into a wound opening of a body cavity of a patient, the wound retractor comprising:
an upper ring;
a lower ring; and
a sleeve extending between and connecting the upper ring to the lower ring, wherein the sleeve comprises:
a gases impermeable layer, wherein the gases impermeable layer is on an inner side of the sleeve such that the gases impermeable layer is configured to face the body cavity, and wherein the gases impermeable layer comprises at least one aperture, the at least one aperture configured to allow gases to enter the body cavity, and
a gases permeable layer.
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