US 11,793,392 B2
External working channels
Alexander Q. Tilson, Burlingame, CA (US); Mark C. Scheeff, Oakland, CA (US); Garrett J. Gomes, Pleasant Hill, CA (US); Francisco G. Lopez, San Mateo, CA (US); Justin Kirschbrown, San Mateo, CA (US); Wei Li Fan, San Francisco, CA (US); William Evans, San Francisco, CA (US); Viet Anh Nguyen, San Jose, CA (US); Stephan T. Hoffmann, Danville, CA (US); Kassidy MacPhail, San Francisco, CA (US); and Thomas Hsiu, Palo Alto, CA (US)
Assigned to NEPTUNE MEDICAL INC., Burlingame, CA (US)
Filed by Neptune Medical Inc., Burlingame, CA (US)
Filed on Sep. 8, 2022, as Appl. No. 17/940,906.
Application 17/940,906 is a continuation in part of application No. 17/604,203, previously published as PCT/US2020/013937, filed on Jan. 16, 2020.
Application 17/604,203 is a continuation in part of application No. PCT/US2021/034292, filed on May 26, 2021.
Claims priority of provisional application 63/342,618, filed on May 16, 2022.
Claims priority of provisional application 63/165,721, filed on Mar. 24, 2021.
Claims priority of provisional application 63/128,769, filed on Dec. 21, 2020.
Claims priority of provisional application 63/030,252, filed on May 26, 2020.
Claims priority of provisional application 62/854,199, filed on May 29, 2019.
Claims priority of provisional application 62/835,101, filed on Apr. 17, 2019.
Prior Publication US 2023/0014281 A1, Jan. 19, 2023
Int. Cl. A61B 1/00 (2006.01)
CPC A61B 1/00078 (2013.01) [A61B 1/00135 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A rigidizing system comprising:
an elongate rigidizing device configured to be rigidized from a flexible configuration to a rigid configuration; and
a working channel sleeve comprising one or more expandable external working channels formed of one or more non-elastic filaments, the working channel sleeve positioned along the elongate rigidizing device and configured so that the one or more external working channels expands when a tool is passed therethrough, wherein the one or more non-elastic filaments are knitted, braided or woven to form pores having a pore size that may vary as the external working channel is expanded or collapsed.