Surgical fasteners
View Patent ↗Surgical fasteners, including tacks are disclosed for fastening a surgical mesh to underlying tissue during surgical procedures to repair body tissue, such as in hernia repair. Such tacks can include a head, a elongated body portion having a distal end and a proximal end, and an anchoring element on an outer surface of the body portion for inhibiting the removal of the tack from the mesh and body tissue.
1. A tack system, comprising:
a surgical instrument including a tubular body portion having a lumen extending therethrough, wherein the tubular body portion projects radially inward; and
at least one surgical tack loaded into the lumen of the tubular body portion of the surgical instrument, each tack including:
a head having a proximal surface and a distal surface, the head defines an outer terminal rim dimensioned for receipt in the lumen of the tubular body of the surgical instrument, the head including at least two notches formed in the outer terminal rim thereof, wherein the at least two notches receive and distribute rotational forces exerted on the head by the radially inward projecting body portion of the tubular body as the tubular body rotates;
a body portion extending from the distal surface of head, the body portion including a blunt distal-most end; and
at least one anchoring element provided on ail outer surface of the body portion for inhibiting the removal of the tack from body tissue, the anchoring element commencing at a distance spaced from the blunt distal-most end of the at least one body portion and terminating at a distance spaced from the distal surface of the head.
2. The tack system according to claim 1 , wherein the tubular body of the surgical instrument includes at least one longitudinally extending ridge projecting from an inner surface thereof, wherein each ridge engages a respective notch of the head of each tack.
3. The tack system according to claim 1 , wherein the tubular body of the surgical instrument completely circumscribes the head of each tack.
4. The tack system according to claim 1 , wherein the at least one anchoring element of each tack is at least one of a helical thread extending along a portion of the length of the body portion, a resilient prong extending from the outer surface of the body portion, and a barb formed on the outer surface of the body portion.
5. The tack system according to claim 1 , wherein the body portion of each tack has a length, and wherein the body portion of each tack is conical along its entire length.
6. The tack system according to claim 4 , wherein the helical thread of each tack terminates at a distance spaced from the distal surface of the head thereof.
7. The tack system according to claim 1 , wherein the head of each tack includes a recess formed in the proximal surface thereof, wherein the recess is aligned with a longitudinal axis of the body portion.
8. The tack system according to claim 7 , wherein the recess formed in the head of each tack is concave, and the distal end of the body portion of each tack is convex.
9. The tack system according to claim 1 , wherein each tack is fabricated from a bioabsorbable material.