US RE50,564 E1
Leadless cardiac pacemaker with secondary fixation capability
Alan Ostroff, Pleasanton, CA (US)
Assigned to PACESETTER, INC., Sylmar, CA (US)
Filed by Pacesetter, Inc., Sylmar, CA (US)
Filed on Jun. 28, 2021, as Appl. No. 17/361,150.
Application 17/361,150 is a continuation of application No. 12/698,969, filed on Feb. 2, 2010, granted, now 8,527,068, issued on Sep. 3, 2013.
Application 17/361,150 is a reissue of application No. 13/967,180, filed on Aug. 14, 2013, granted, now 9,272,155, issued on Mar. 1, 2016.
Claims priority of provisional application 61/155,038, filed on Feb. 24, 2009.
Claims priority of provisional application 61/149,176, filed on Feb. 2, 2009.
Int. Cl. A61N 1/372 (2006.01); A61N 1/05 (2006.01); A61N 1/375 (2006.01)
CPC A61N 1/3756 (2013.01) [A61N 1/0573 (2013.01); A61N 1/37512 (2017.08); A61N 1/37518 (2017.08)] 24 Claims
OG exemplary drawing
 
1. A leadless biostimulator comprising:
a housing sized and configured to be disposed within a heart chamber of a [ an adult ] human;
a primary fixation element configured to actively affix the biostimulator to a heart wall within the heart chamber; and
an expandable structure connected to a proximal portion of the housing, the expandable structure being adapted to assume a compressed linear configuration during delivery and an expanded configuration after delivery, wherein the expanded configuration of the expandable structure has a cross-sectional dimension that is greater than a diameter of a vascular exit pathway from the heart chamber so that expansion of [ the ] expandable structure confines the leadless biostimulator and the expandable structure to the heart chamber [ , wherein the expandable structure further comprises a coupling mechanism that couples the expandable structure to the housing to allow for movement of the expandable structure with respect to the housing] .