US 11,944,371 B2
RF energy enabled tissue debridement device
John R Prisco, Jacksonville, FL (US); Eric P. Detmers, Jacksonville, FL (US); Wenjeng Li, Saint Johns, FL (US); David J. Little, Ponte Vedra Beach, FL (US); Patrick Richart, Jacksonville, FL (US); and Jose Valdez, Jacksonville, FL (US)
Assigned to Medtronic Xomed, Inc., Jacksonville, FL (US)
Filed by Medtronic Xomed, Inc., Jacksonville, FL (US)
Filed on Dec. 17, 2021, as Appl. No. 17/553,883.
Application 17/553,883 is a continuation of application No. 15/047,242, filed on Feb. 18, 2016, granted, now 11,207,130.
Claims priority of provisional application 62/117,523, filed on Feb. 18, 2015.
Prior Publication US 2022/0104871 A1, Apr. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 17/32 (2006.01); A61B 17/3207 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1485 (2013.01) [A61B 17/32002 (2013.01); A61B 18/148 (2013.01); A61B 17/320783 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00202 (2013.01); A61B 2018/00208 (2013.01); A61B 2018/00327 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00601 (2013.01); A61B 2217/007 (2013.01); A61B 2218/002 (2013.01); A61B 2218/007 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A bipolar electrical device, comprising:
an outer shaft defining a lumen extending along a central axis, a proximal end and a distal end opposite the proximal end, in which the distal end forms a cutting window open to the lumen;
an inner shaft rotatably disposed within the lumen of the outer shaft about the central axis, the inner shaft defining a distal portion forming a cutting tip, the cutting tip and the cutting window together defining a cutting implement;
first and second electrically isolated electrode surfaces formed at the cutting implement and defining a space between each other; and
an irrigation channel within the space, the irrigation channel extending along the outer shaft and terminating in at least one outlet port proximally spaced from the cutting window and radially spaced relative to the outer shaft.