Patent ID: 8789736

Claim:
A system for applying staples to a tissue, comprising: at least one stapling element for piercing through a tissue and forming a closed loop through said tissue; a cartridge including a rigid frame defining at least one elongated lumen for fully receiving the at least one stapling element within the lumen; and a driving unit, in mechanical communication with said cartridge, operative to issue said at least one stapling element from said cartridge; wherein the at least one stapling element forms: a first shape while maintained within the lumen of the cartridge, the first shape being a straight elongated shaped body with a tapered end, and including a characteristic along a length of the elongated body operative to prevent rotation of the stapling element about its longitudinal axis as it is issued from the cartridge; and a second shape when issued from the cartridge; the second shape being a closed loop shape, wherein the stapling element self-deforms from the first shape to the second shape as it issues from the cartridge; and wherein a cross section of the lumen matches the characteristic of the stapling element and engages with it to prevent the stapling element from rotating about its longitudinal axis as it is issued.