US 12,005,210 B2
System for effecting and controlling oscillatory pressure within balloon catheters for fatigue fracture of calculi
Robert Chisena, Ann Arbor, MI (US); Hitinder S. Gurm, Ann Arbor, MI (US); Matthew Hildner, Ann Arbor, MI (US); Yihao Zheng, Shrewsbury, MA (US); and Albert Shih, Ann Arbor, MI (US)
Assigned to The Regents of The University of Michigan, Ann Arbor, MI (US)
Filed by THE REGENTS OF THE UNIVERSITY OF MICHIGAN, Ann Arbor, MI (US)
Filed on Aug. 29, 2022, as Appl. No. 17/897,604.
Application 17/897,604 is a continuation of application No. 16/654,073, filed on Oct. 16, 2019, granted, now 11,464,949.
Application 16/654,073 is a continuation in part of application No. PCT/US2019/027139, filed on Apr. 12, 2019.
Claims priority of provisional application 62/656,699, filed on Apr. 12, 2018.
Prior Publication US 2022/0409869 A1, Dec. 29, 2022
Int. Cl. A61M 25/10 (2013.01); A61B 17/22 (2006.01); A61B 17/00 (2006.01)
CPC A61M 25/10182 (2013.11) [A61B 17/22012 (2013.01); A61M 25/10185 (2013.11); A61B 2017/00154 (2013.01); A61B 2017/00181 (2013.01); A61B 2017/00539 (2013.01); A61B 2017/22001 (2013.01); A61B 2017/22051 (2013.01); A61B 2017/22062 (2013.01); A61M 2205/3344 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A dynamic balloon angioplasty system for applying pressure pulses or static pressure to an angioplasty balloon, the system comprising:
an angioplasty unit comprising an oscillating mechanism, an angioplasty balloon inflation device and a balloon connector,
wherein the oscillating mechanism comprises:
an electromagnet;
a diaphragm unit configured to translate relative to the electromagnet to generate pressure pulses or static pressure; and
a fluid output port fluidly coupled to the diaphragm unit, the angioplasty balloon inflation device and the balloon connector via a fluid communication path;
an electrical power source operably connected to the electromagnet and configured to selectively power the electromagnet to translate the diaphragm unit and output a plurality of pressure pulses or a static pressure through the fluid output port; and
an angioplasty balloon catheter fluidly coupled to the balloon connector and comprising an elongated catheter and an angioplasty balloon present at a distal end of the elongated catheter,
wherein the elongated catheter delivers the plurality of pressure pulses or static pressure to the angioplasty balloon.