US 12,290,432 B2
Surgical filament securement assemblies and procedures
Peter Walker, Bellevue Hill (AU)
Assigned to PMSW RESEARCH PTY LTD, Bellevue Hill (AU)
Appl. No. 17/633,125
Filed by PMSW RESEARCH PTY LTD, Bellevue Hill (AU)
PCT Filed Aug. 21, 2020, PCT No. PCT/AU2020/050870
§ 371(c)(1), (2) Date Feb. 4, 2022,
PCT Pub. No. WO2021/035288, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 2019903082 (AU), filed on Aug. 23, 2019.
Prior Publication US 2022/0273420 A1, Sep. 1, 2022
Int. Cl. A61F 2/08 (2006.01); A61B 17/04 (2006.01)
CPC A61F 2/0811 (2013.01) [A61B 2017/0409 (2013.01); A61B 2017/0414 (2013.01); A61B 2017/0445 (2013.01); A61B 2017/0458 (2013.01); A61B 2017/0464 (2013.01); A61F 2002/0817 (2013.01); A61F 2002/0852 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A surgical filament securement assembly comprising:
a surgical filament,
an insertion instrument comprising a dilater member and an insertion rod, wherein the dilater member is orientated substantially orthogonally with respect to an elongate axis of the insertion instrument and is formed by a longitudinal cut through the distal edge which transitions at a right angle to an orthogonal cut adjacent the dilater member, or orientated longitudinally with respect to an elongate axis of the insertion instrument and is formed by parallel longitudinal cuts either side thereof, and the insertion instrument further comprises an insertion rod which engages a bore of the anchor,
an anchor extending along a longitudinal axis from a proximal face to a distal end, the anchor having a longitudinal bore centrally located and a longitudinal channel offset from a center of the anchor and extending therethrough between an entrance opening in the proximal face and an exit opening in a side of the anchor having exterior interference members,
wherein the surgical filament is passed through the channel, the surgical filament tied to form a dilated knot having at least one throw around the dilater member at the entrance of the channel such that the surgical filament is able to run around the dilater member when a limb thereof is pulled in a first direction through the channel whilst the dilated knot remains in place at the entrance and wherein, when the dilater member is pulled out from within the dilated knot, the dilated knot itself strangulates to form a tightened stopper knot and wherein the channel has a diameter less than that of the tightened stopper knot such that the tightened stopper knot cannot pass through the entrance in the first direction.