US 12,245,782 B2
Shock wave electrodes
Hoa D. Nguyen, San Jose, CA (US); and John M. Adams, Snohomish, WA (US)
Assigned to SHOCKWAVE MEDICAL, INC., Santa Clara, CA (US)
Filed by Shockwave Medical, Inc., Santa Clara, CA (US)
Filed on Jun. 26, 2024, as Appl. No. 18/755,486.
Application 18/755,486 is a division of application No. 17/725,435, filed on Apr. 20, 2022, granted, now 12,064,129.
Application 17/725,435 is a division of application No. 16/691,449, filed on Nov. 21, 2019, granted, now 11,337,713, issued on May 4, 2022.
Application 16/691,449 is a division of application No. 15/346,132, filed on Nov. 8, 2016, granted, now 10,555,744, issued on Jan. 22, 2020.
Claims priority of provisional application 62/257,141, filed on Nov. 18, 2015.
Prior Publication US 2024/0341787 A1, Oct. 17, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/22 (2006.01)
CPC A61B 17/2202 (2013.01) [A61B 17/22022 (2013.01); A61B 2017/22001 (2013.01); A61B 2017/22021 (2013.01); A61B 2017/22025 (2013.01); A61B 2017/22061 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A treatment catheter comprising:
an axially extending elongate member;
a first cylindrical conductive band mounted on the elongate member;
a second cylindrical conductive band mounted on the elongate member in a distal position relative to the first cylindrical conductive band and arranged such that longitudinal spacing between the first cylindrical conductive band and the second cylindrical conductive band defines at least one spark gap between the first and second cylindrical conductive bands;
a first wire having a first end electrically connectable to a voltage source and having a second end in electrical communication with the first cylindrical conductive band;
a second wire having a first end electrically connectable to the voltage source and having a second end in electrical communication with the second cylindrical conductive band; and
a tube connected to the elongate member and surrounding the first and second cylindrical conductive bands, the tube being fillable with a conductive liquid,
wherein the first and second cylindrical conductive bands are configured such that a voltage pulse applied across the first and second wires causes a current to flow across the spark gap between the first and second cylindrical conductive bands and generate a shock wave in the liquid.