US 12,295,619 B2
Adjustable magnetic devices and methods of using same
Brad Culbert, Rancho Santa Margarita, CA (US); Scott Pool, Laguna Hills, CA (US); Blair Walker, Mission Viejo, CA (US); Arvin Chang, Yorba Linda, CA (US); and Peter P. Tran, Irvine, CA (US)
Assigned to NuVasive, Inc., San Diego, CA (US)
Filed by NuVasive Specialized Orthopedics, Inc., San Diego, CA (US)
Filed on Feb. 13, 2024, as Appl. No. 18/440,266.
Application 17/352,485 is a division of application No. 16/297,257, filed on Mar. 8, 2019, granted, now 11,123,107, issued on Sep. 21, 2021.
Application 18/440,266 is a continuation of application No. 17/352,485, filed on Jun. 21, 2021, granted, now 11,918,255.
Application 16/297,257 is a continuation of application No. 14/449,761, filed on Aug. 1, 2014, granted, now 10,265,101, issued on Apr. 23, 2019.
Application 14/449,761 is a continuation of application No. 14/301,238, filed on Jun. 10, 2014, granted, now 10,349,982, issued on Jul. 16, 2019.
Application 14/301,238 is a continuation of application No. 14/355,202, granted, now 10,016,220, issued on Jul. 10, 2018, previously published as PCT/US2012/062696, filed on Oct. 31, 2012.
Claims priority of provisional application 61/567,936, filed on Dec. 7, 2011.
Claims priority of provisional application 61/554,389, filed on Nov. 1, 2011.
Prior Publication US 2024/0180593 A1, Jun. 6, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/70 (2006.01); A61B 17/86 (2006.01); A61F 2/44 (2006.01); A61B 17/00 (2006.01); A61B 17/68 (2006.01)
CPC A61B 17/7016 (2013.01) [A61B 17/7002 (2013.01); A61B 17/7037 (2013.01); A61B 17/7046 (2013.01); A61B 17/7071 (2013.01); A61B 17/863 (2013.01); A61B 17/8685 (2013.01); A61F 2/44 (2013.01); A61B 2017/00212 (2013.01); A61B 2017/00876 (2013.01); A61B 2017/681 (2013.01); A61B 17/7008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a first pedicle screw;
a second pedicle screw separated from the first pedicle screw by a distance; and
an adjustable rod comprising:
an outer housing configured to affix to the first pedicle screw, the outer housing having a threaded shaft secured to one end thereof and extending along an interior portion thereof;
an inner shaft configured to affix to the second pedicle screw, at least a portion of the inner shaft being telescopically adjustable within the outer housing; and
a magnetic assembly disposed at least partially within the outer housing and comprising a magnetic element disposed around at least a portion of the threaded shaft, the magnetic assembly having an internal threaded surface configured to engage the threaded shaft,
wherein the magnetic assembly is rotatably coupled to the inner shaft by a rotational coupling;
wherein the magnetic assembly is configured to rotate in response to an externally applied magnetic field, thereby increasing or decreasing the distance between the first pedicle screw and the second pedicle screw.