Patent ID: 7753247

Claim:
A surgical stapling device for applying staples in a layer of tissue, the surgical stapling device comprising: a device body; a staple magazine arranged in the device body and adapted to contain a plurality of staples that are stacked in a pre-application position and spring loaded in a staple transport direction towards a staple outlet of the magazine, each of the plurality of staples having a staple cross bar and two staple feet laterally connected and folded substantially perpendicular to the staple cross bar; a triggering device transferable between a ready position and an actuation position, the triggering device causing, in response to being transferred from the ready position to the actuation position, an upper die pick up, at the outlet of the staple magazine, a foremost staple of the plurality of staples, and bend, an anvil engaging between the staple feet of and acting as an abutment for the staple cross bar of the foremost staple, each staple foot of the foremost staple inwards into an application position by folding a respective section of the staple cross bar that is adjacent to each respective staple foot of the foremost staple, thus making each respective section into a respective staple leg; and an ejector element extending centrally and parallel to the staple transport direction as a flat spring-loaded tongue beneath the anvil, the ejector element being linearly displaceable and being spring-loaded in the direction of staple transport direction, the ejector element being, in it's front section, shaped as an arrowhead comprising two lateral arrowhead wings that each being beveled to the rear of the ejector element, the total front edge of the ejector element having a width that exceeds the distance between the staple legs when the staple legs are in application position, wherein the ejector element, in response to the triggering element being transferred from the ready position to the actuating position, is, due to the distance between the bending staple legs narrowing and, thus, the arrowhead wings sliding along the inner rear surfaces of the bending staple legs, displaced opposite to the staple transport direction, thereby increasing spring load, and, when the triggering element is returned to the ready position, said ejector element is, due to the upper die releasing the foremost staple and due to the spring load driving, displaced in the direction of staple transport, thereby kicking off the foremost staple.