US 11,672,680 B2
Growth adaptive expandable stent
Daniel F. King, Watertown, MA (US); Stephanie Lynne Golmon, Arlington, MA (US); Jonathan R. Coppeta, Windham, NH (US); Jesse M. Carr, Cambridge, MA (US); and Corin Williams, Framingham, MA (US)
Assigned to THE CHARLES STARK DRAPER LABORATORY, INC., Cambridge, MA (US)
Appl. No. 16/637,664
Filed by THE CHARLES STARK DRAPER LABORATORY, INC., Cambridge, MA (US)
PCT Filed Aug. 10, 2018, PCT No. PCT/US2018/046309
§ 371(c)(1), (2) Date Feb. 7, 2020,
PCT Pub. No. WO2019/033026, PCT Pub. Date Feb. 14, 2019.
Claims priority of provisional application 62/684,464, filed on Jun. 13, 2018.
Claims priority of provisional application 62/544,231, filed on Aug. 11, 2017.
Prior Publication US 2021/0353443 A1, Nov. 18, 2021
Int. Cl. A61F 2/89 (2013.01); A61F 2/24 (2006.01); A61F 2/82 (2013.01)
CPC A61F 2/89 (2013.01) [A61F 2/2418 (2013.01); A61F 2002/825 (2013.01); A61F 2210/0014 (2013.01); A61F 2250/001 (2013.01); A61F 2250/0082 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A growth adaptive expandable stent for use in a heart valve device at a site, the expandable stent comprising: a stent structure having a cylindrical shape that is self-expanding in a radial direction, the stent structure having a proximal end portion, a distal end portion, and a central portion and comprising a plurality of cylindrical rings disposed along a longitudinal axis of the stent structure, each cylindrical ring of the plurality of cylindrical rings having a plurality of interconnected struts; the stent structure configured to exert a chronic outward radial force over time when implanted and in contact with the site such that an outer diameter of the stent structure expands by undergoing elastic deformation from an implanted and expanded initial diameter after delivery and implantation to a fully expanded diameter also in contact with the site that is at least 1.5 times the implanted and expanded initial diameter after implantation as the site grows,
wherein the stent structure undergoes the elastic deformation when the stent structure passively expands from the implanted and expanded initial diameter after delivery and implantation to the fully expanded diameter also in contact with the site.