US 11,806,240 B2
Three-dimensional lattice structures for implants
Christopher Laine, Bellingham, MA (US); Ian Helmar, Beverly, MA (US); Lucas Diehl, Beverly, MA (US); Jason Tinley, Fort Worth, TX (US); Kevin D. Chappuis, Malden, MA (US); and John F. Sullivan, Pelham, NH (US)
Assigned to NANOHIVE MEDICAL LLC, Woburn, MA (US)
Filed by NANOHIVE MEDICAL LLC, Woburn, MA (US)
Filed on Jul. 22, 2019, as Appl. No. 16/518,281.
Application 16/518,281 is a division of application No. 15/876,695, filed on Jan. 22, 2018, granted, now 10,368,997.
Claims priority of provisional application 62/619,260, filed on Jan. 19, 2018.
Claims priority of provisional application 62/480,393, filed on Apr. 1, 2017.
Claims priority of provisional application 62/480,383, filed on Apr. 1, 2017.
Prior Publication US 2019/0343638 A1, Nov. 14, 2019
Int. Cl. A61F 2/28 (2006.01); A61F 2/30 (2006.01); A61C 13/00 (2006.01); A61C 8/00 (2006.01); B33Y 80/00 (2015.01); A61F 2/44 (2006.01); A61L 27/50 (2006.01); A61L 27/56 (2006.01); B29C 64/165 (2017.01); A61F 2/00 (2006.01)
CPC A61F 2/3094 (2013.01) [A61C 8/0013 (2013.01); A61C 13/0019 (2013.01); A61F 2/28 (2013.01); A61F 2/2846 (2013.01); A61F 2/30771 (2013.01); A61F 2/30907 (2013.01); A61F 2/30942 (2013.01); A61F 2/44 (2013.01); A61F 2/4455 (2013.01); A61L 27/505 (2013.01); A61L 27/56 (2013.01); B33Y 80/00 (2014.12); A61F 2/30767 (2013.01); A61F 2002/0081 (2013.01); A61F 2002/2835 (2013.01); A61F 2002/30006 (2013.01); A61F 2002/30014 (2013.01); A61F 2002/3014 (2013.01); A61F 2002/30069 (2013.01); A61F 2002/3092 (2013.01); A61F 2002/3093 (2013.01); A61F 2002/30113 (2013.01); A61F 2002/30141 (2013.01); A61F 2002/30143 (2013.01); A61F 2002/30146 (2013.01); A61F 2002/30148 (2013.01); A61F 2002/30151 (2013.01); A61F 2002/30154 (2013.01); A61F 2002/30156 (2013.01); A61F 2002/30263 (2013.01); A61F 2002/30273 (2013.01); A61F 2002/30677 (2013.01); A61F 2002/30766 (2013.01); A61F 2002/30914 (2013.01); A61F 2002/30919 (2013.01); A61F 2002/30943 (2013.01); A61F 2210/0057 (2013.01); A61F 2240/001 (2013.01); A61F 2310/00023 (2013.01); A61L 2430/02 (2013.01); B29C 64/165 (2017.08)] 17 Claims
OG exemplary drawing
 
1. A porous lattice structure for use in medical implants, the porous lattice structure comprising:
a plurality of repeating unit cells, each unit cell comprising:
a plurality of sub-unit cells, each sub-unit cell comprising:
a plurality of connected faces configured to define a volume of the sub-unit cell;
a node located within the volume of the sub-unit cell; and
a plurality of struts extending from the node within the volume of the sub-unit cell and defining a plurality of rhombic openings therebetween, wherein at least one rhombic opening comprises two internal angles that equal a lateral separation angle ranging between 109.5 degrees and 180 degrees;
a first loading direction; and
a second loading direction oriented at an angle offset from the first loading direction;
wherein the porous lattice structure comprises a first elastic modulus in the first loading direction and a second elastic modulus in the second loading direction, wherein the first elastic modulus is less than the second elastic modulus and the porous lattice structure comprises at least one of a rhombic dodecahedron shaped sub-unit cell and a radial dodeca-rhombus shaped sub-unit cell.