US 11,918,481 B2
Expandable device
Stephen Kalhorn, Mt Pleasant, SC (US); Mark E. Semler, Mt Pleasant, SC (US); Joseph Ruscito, Charleston, SC (US); and Christopher Hapstack, Charleston, SC (US)
Assigned to MUSC Foundation for Research Development, Charleston, SC (US)
Filed by MUSC Foundation for Research Development, Charleston, SC (US)
Filed on Apr. 8, 2021, as Appl. No. 17/225,436.
Application 17/225,436 is a continuation of application No. 16/339,024, granted, now 11,000,385, previously published as PCT/US2018/053716, filed on Oct. 1, 2018.
Claims priority of provisional application 62/565,374, filed on Sep. 29, 2017.
Prior Publication US 2021/0220148 A1, Jul. 22, 2021
Int. Cl. A61F 2/44 (2006.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/4455 (2013.01) [A61F 2/4611 (2013.01); A61F 2002/30471 (2013.01); A61F 2002/3055 (2013.01); A61F 2002/30556 (2013.01); A61F 2002/30884 (2013.01); A61F 2002/30891 (2013.01); A61F 2002/4415 (2013.01); A61F 2002/4445 (2013.01); A61F 2002/4698 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An expandable device, comprising:
(a) a pair of superior arms arranged in parallel with an opposing a pair of inferior arms, each arm comprising an anterior end and a posterior end, and each of the opposing pairs of arms comprising opposing slots in their anterior and posterior ends; and
(b) an expansion system comprising bolts, crossbars, and pins, the bolts arranged in parallel as pairs, the bolts in each pair connected by crossbars, each pair of bolts positioned, respectively, in the opposing anterior and posterior slots of the opposing inferior and superior arms, each bolt secured within a slot by a pin fixed to each arm;
wherein the expansion system of bolts, crossbars and pins moves the arms between a closed configuration and an open configuration upon rotation of the bolts within the slots, and wherein movement of the arms to the open configuration includes separating the arms to simultaneously expand the device in each of a height dimension and a width dimension.