Surgical pads and spacers

A surgical pad comprising:

• a flexible pad portion configured to be positioned over an opening in a target tissue, the flexible pad portion comprising a first surface configured to be oriented toward the target tissue and a second surface configured to be oriented away from the target tissue;
• a plurality of designated locations around an outer edge portion of the second surface, each of the plurality of designated locations being configured to couple to corresponding tethers extending from the opening in the target tissue;
• and
• a plurality of elongate ribs associated with the second surface and coupled to the flexible pad portion, the plurality of elongate ribs being disconnected from each other and configured to provide mechanical reinforcement for the flexible pad portion to counter forces exerted upon the flexible pad portion by the corresponding tethers, each of the plurality of elongate ribs comprising a first end at a center portion of the second surface and a second end spaced from a nearest portion of an outer edge of the flexible pad portion, and the surgical pad being configured to assume a reduced profile state to provide the surgical pad in a folded state in which the first end of each of the plurality of elongate ribs are oriented in a first direction and the second end of each of the plurality of elongate ribs are oriented in a second opposing direction.