US 11,867,216 B2
Compliant self-anchoring screw with auxetic properties
Hando Kim, Los Angeles, CA (US); and Jonathan B Hopkins, Los Angeles, CA (US)
Assigned to Hando Kim, Los Angeles, CA (US)
Filed by Hando Kim, Los Angeles, CA (US); and Jonathan B Hopkins, Los Angeles, CA (US)
Filed on May 27, 2021, as Appl. No. 17/332,603.
Claims priority of provisional application 63/034,737, filed on Jun. 4, 2020.
Prior Publication US 2022/0074442 A1, Mar. 10, 2022
Int. Cl. F16B 31/04 (2006.01); F16B 25/00 (2006.01); F16B 25/10 (2006.01); A61B 17/86 (2006.01)
CPC F16B 31/04 (2013.01) [F16B 25/0094 (2013.01); A61B 17/863 (2013.01); A61B 17/8685 (2013.01); F16B 25/103 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A compliant self-anchoring screw with auxetic properties comprising:
a proximal screw head;
a screw shank extending distally from the screw head;
a plurality of blade flexures extending from the screw shank in a proximal direction at an angle relative to a longitudinal axis of the screw shank the plurality of blade flexures being linearly aligned to form at least two rows of blade flexures along the screw shank;
a panel attached to each row of blade flexures; and
a screw thread positioned on an exterior surface of each panel, the screw thread being continuous across all panels;
wherein the screw comprises a resting state and a loaded state, wherein the screw shank has a proximal diameter and a distal diameter, the distal diameter defining a central shaft, and wherein the screw shank further comprises one or more rings extending from the central shaft, each ring being positioned immediately distal to a blade flexure.