US 12,447,004 B2
Surgical fastener assemblies and methods
Nam Chao, Bedford, MA (US); Steven W. Ek, Bolton, MA (US); Chris Baker, Boston, MA (US); Tim Brightman, Franklin, MA (US); and Dan LeDuc, Franklin, MA (US)
Assigned to Arthrosurface, Inc., Franklin, MA (US)
Filed by Arthrosurface, Inc., Franklin, MA (US)
Filed on May 16, 2022, as Appl. No. 17/663,651.
Claims priority of provisional application 63/189,400, filed on May 17, 2021.
Prior Publication US 2022/0362005 A1, Nov. 17, 2022
Int. Cl. A61F 2/08 (2006.01)
CPC A61F 2/0811 (2013.01) [A61F 2/0805 (2013.01); A61F 2002/0841 (2013.01); A61F 2002/0858 (2013.01); A61F 2002/0888 (2013.01); A61F 2220/0016 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An assembly for delivery of a fastener, the assembly comprising:
a fastener cartridge having a body with a proximal end, and a distal end, the proximal end configured to be removably coupled to a distal end of an apparatus to deliver a fastener coupled to the cartridge, the cartridge comprising:
a spike having a spike proximal end coupled to the distal end of the cartridge, and a spike distal end extending from the distal end of the cartridge, the spike proximal end having a transverse dimension that is smaller than a transverse dimension of the distal end of the cartridge such that a shoulder is defined at the spike proximal end, the shoulder configured to abut a head of a fastener received over the spike;
a fastener received over the spike, the fastener comprising:
an elongated shaft having a shaft length extending from a shaft proximal end to a shaft distal end, and defining an internal passage extending along the shaft length;
an enlarged head coupled to the proximal end of the shaft and abutting the shoulder of the cartridge;
a plurality of outriggers extending from the enlarged head in a direction away from the internal passage; and
a plurality of first barbs each extending along a portion of the shaft length, each first barb having a leading edge and trailing edge spaced from the proximal end of the shaft, the leading edge of each first barb being disposed between the trailing edge of that first barb and the distal end of the shaft; and
where the shaft, head, outriggers, and first and second barbs are defined by a unitary piece of polymer; and
a flexible, fibrous implant having a first end edge, a second end edge, and a pair of lateral edges extending between the first and second end edges, where the implant is substantially planar when in a flattened state in which the first end edge is separated from the second end edge under a first tension of 5 Newtons (N) applied perpendicular to each of the end edges, and in which the lateral edges are separated from each other under a tension of 5 N applied perpendicular to each of the lateral edges;
an elongated, tubular shield disposed over the implant, at least a portion of the fastener, and at least a portion of the cartridge;
where the shaft extends through the implant at a point that is closer to the first end edge than to the second end edge, a first portion of the implant extends proximally around at least a portion of the cartridge, and the first portion of the implant is disposed between the cartridge and the shield.