US 12,268,393 B2
Shape-memory polymer foam device for treating aneurysms
Jason M. Ortega, Pacifica, CA (US); William J. Benett, Livermore, CA (US); Ward Small, Livermore, CA (US); Thomas S. Wilson, San Leandro, CA (US); Duncan J. Maitland, College Station, TX (US); and Jonathan Hartman, Sacramento, CA (US)
Assigned to Lawrence Livermore National Security, Inc., Livermore, CA (US); The Texas A&M University System, College Station, TX (US); and Shape Memory Medical, Inc., Santa Clara, CA (US)
Filed by Lawrence Livermore National Security, Inc., Livermore, CA (US); The Texas A&M University System, College Station, TX (US); and Shape Memory Medical, Inc., Santa Clara, CA (US)
Filed on Oct. 7, 2021, as Appl. No. 17/496,328.
Application 17/496,328 is a continuation of application No. 15/599,133, filed on May 18, 2017, granted, now 11,141,164.
Application 15/599,133 is a continuation of application No. 13/798,740, filed on Mar. 13, 2013, granted, now 9,662,119, issued on May 30, 2017.
Prior Publication US 2022/0022883 A1, Jan. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/12 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/12113 (2013.01) [A61B 17/12022 (2013.01); A61B 17/12031 (2013.01); A61B 17/12181 (2013.01); A61B 2017/0061 (2013.01); A61B 2017/00871 (2013.01); A61B 2017/12077 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus comprising:
first and second individual separate pieces of shape memory polymer (SMP) foam that are not permanently directly connected to each other;
a delivery conduit;
a backbone; and
a means for advancing the backbone through a patient's vasculature, the means for advancing the backbone being coupled to the backbone;
wherein the first and second individual separate pieces of SMP foam are distributed along the backbone;
wherein the first individual separate piece of SMP foam includes a first multiplicity of pores having a first average pore size and the second individual separate piece of SMP foam includes a second multiplicity of pores having a second average pore size that is larger than the first average pore size;
wherein the first individual separate piece of SMP foam is between the means for advancing the backbone and the second individual separate piece of SMP foam;
wherein the first and second individual separate pieces of SMP foam are arranged to deploy from the delivery conduit and into the vasculature in serial fashion with the second individual separate piece of SMP foam deploying from the delivery conduit before the first individual separate piece of SMP foam deploys from the delivery conduit.