Self-opening skin staple

A tissue closure apparatus comprising:

• a collar having a collar wall defining a passage therethrough, the collar wall having an inner surface adjacent the passage, the inner surface having a plurality of teeth extending outward into the passage;
• a pair of elastically deformable legs connected to the collar, each leg having a lateral portion adjacent the collar and an engagement portion connected to the lateral portion;
• a flexible adjustment member connected to the engagement portion of at least one of the elastically deformable legs, the flexible adjustment member being disposed within the passage of the collar and having a plurality of teeth to engage the plurality of teeth of the collar;
• and
• wherein the flexible adjustment member is capable of being pulled through the passage such that the at least one of the elastically deformable legs is moved from an open position to an engaged position, the teeth of the flexible adjustment member lockingly engaging the teeth of the collar such that the elastically deformable leg remains in the engaged positioned until selectively released.