US 12,440,272 B2
Internal secondary calculus fragmentation mechanism
Jeffrey M. Schmitt, Bolton, MA (US); Charles Baker, Rogers, MN (US); Kristen R. Toutant, Denver, CO (US); and Susanna L. Mayo, Boston, MA (US)
Assigned to Gyrus ACMI, Inc., Westborough, MA (US)
Filed by GYRUS ACMI, INC., Westborough, MA (US)
Filed on Aug. 11, 2021, as Appl. No. 17/399,226.
Claims priority of provisional application 63/065,836, filed on Aug. 14, 2020.
Prior Publication US 2022/0047332 A1, Feb. 17, 2022
Int. Cl. A61B 18/26 (2006.01); A61B 17/22 (2006.01); A61B 17/32 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/26 (2013.01) [A61B 2018/00202 (2013.01); A61B 2018/00511 (2013.01); A61B 2018/00535 (2013.01); A61B 2218/002 (2013.01); A61B 2218/007 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A calculi fracture device comprising:
an acoustic transducer for transferring acoustic energy via a primary fragmentation probe to fracture a calculi mass into calculi fragments;
an evacuation tube connecting the probe to a pressure source, wherein an evacuation pathway extends through the primary fragmentation probe and the evacuation tube;
a secondary fragmentation device located in the evacuation pathway to further break up the calculi fragments to inhibit clogging at a more proximal location in the evacuation pathway,
the secondary fragmentation device comprising a rotating blade including at least one ring or disk structure.