US 11,857,672 B2
Implantable cellular and biotherapeutic agent delivery canister
Willard W. Hennemann, Washington Crossing, PA (US); Bryan L. Steelman, St. Paul, MN (US); Thomas J. Webster, Barrington, RI (US); and Janet E. Davis, Greenville, NC (US)
Assigned to NanoVault Medical, LLC, Plymouth, MN (US)
Filed by NanoVault Medical LLC, St. Paul, MN (US)
Filed on Jan. 26, 2022, as Appl. No. 17/584,748.
Application 17/584,748 is a continuation in part of application No. 16/985,350, filed on Aug. 5, 2020.
Application 16/985,350 is a continuation in part of application No. 16/128,781, filed on Sep. 12, 2018, granted, now 10,751,280, issued on Sep. 25, 2020.
Application 16/128,781 is a continuation of application No. 15/530,067, granted, now 10,092,507, issued on Oct. 9, 2018, previously published as PCT/US2015/000065, filed on Jun. 6, 2015.
Claims priority of provisional application 61/997,635, filed on Jun. 6, 2014.
Prior Publication US 2022/0142916 A1, May 12, 2022
Int. Cl. A61K 9/00 (2006.01); A61F 2/02 (2006.01); A61K 47/02 (2006.01); A61K 31/337 (2006.01); A61K 31/397 (2006.01); A61K 31/436 (2006.01); A61K 31/65 (2006.01); A61K 31/7036 (2006.01); A61K 35/28 (2015.01); A61K 38/14 (2006.01); A61K 38/18 (2006.01); A61K 38/22 (2006.01); A61K 39/395 (2006.01); A61M 39/02 (2006.01)
CPC A61K 9/0024 (2013.01) [A61F 2/022 (2013.01); A61K 31/337 (2013.01); A61K 31/397 (2013.01); A61K 31/436 (2013.01); A61K 31/65 (2013.01); A61K 31/7036 (2013.01); A61K 35/28 (2013.01); A61K 38/14 (2013.01); A61K 38/1866 (2013.01); A61K 38/22 (2013.01); A61K 39/395 (2013.01); A61K 47/02 (2013.01); A61M 39/0247 (2013.01); A61M 2039/027 (2013.01); A61M 2039/0261 (2013.01); A61M 2039/0276 (2013.01); A61M 2205/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An implantable medical device, comprising:
a first portion having a first nanoscale through-porous structure, the first nanoscale through-porous structure having a surface treatment pattern configured to increase a surface area of exposure of the first nanoscale through-porous structure to an exterior of the implantable medical device; 121
a second portion having a second nanoscale through porous structure opposite the first portion; and
the first portion and the second portion being engaged to an implantable spacer ring.