Multiple coil staple and staple applier
View Patent ↗A multiple coil staple is provided which includes a backspan and a pair of spaced legs. The backspan includes one or more pockets configured to induce coiling of the legs of the staple. A multiple coil staple applier is also provided which includes a pusher having a distal face defining a staple engagement surface and one or more staple deforming pockets. Each staple deforming pocket is configured to induce coiling of the legs of a staple. The multiple coil staple and staple applier facilitate joining of tissues having wider ranges of thicknesses using a single size staple.
1. A multiple coil staple applier comprising:
a housing defining a staple slot;
a staple positioned within the staple slot and having a backspan and a pair of spaced legs;
a pusher dimensioned to be slidably received within the staple slot, the pusher having a distal end having a distal face, the distal face defining a staple engagement surface positioned to engage the backspan of the staple and one or more staple deforming pockets, the one or more staple deforming pockets being configured to induce coiling of the staple legs.
2. A multiple coil staple applier according to claim 1 , wherein the one or more staple deforming pockets includes first and second staple deforming pockets.
3. A multiple coil staple applier according to claim 2 , wherein the first and second staple deforming pockets are configured to induce helical coiling of the staple legs.
4. The multiple coil staple applier of claim 1 , wherein a first staple deforming pocket is configured to induce helical coiling of a first staple leg in a first direction and a second staple deforming pocket is configured to induce helical coiling of a second staple leg in a second direction opposite the first direction.
5. A multiple coil staple applier according to claim 1 , wherein the staple engagement surface and the one or more staple deforming pockets are laterally offset from each other.
6. A multiple coil staple applier according to claim 5 , wherein the one or more staple deforming pockets includes first and second staple deforming pockets positioned on one side of the staple engagement surface.
7. A multiple coil staple applier according to claim 5 , wherein the one or more staple deforming pockets includes first and second staple deforming pockets positioned on opposite sides of the staple engagement surface.
8. A multiple coil staple applier according to claim 7 , wherein each of the first and second staple deforming pockets is configured to induce helical coiling of the staple legs.
9. A multiple coil staple applier according to claim 8 , wherein the first staple deforming pocket is configured to induce helical coiling of the first staple leg in a first direction and the second staple deforming pocket is configured to induce helical coiling of the second staple leg in a second direction opposite the first direction.