US 12,220,145 B2
Debulking catheter
Aram Jamous, Athenry (IE); and Alan Ryan, Galway (IE)
Assigned to MEDTRONIC VASCULAR, INC., Santa Rosa, CA (US)
Filed by Medtronic Vascular, Inc., Santa Rosa, CA (US)
Filed on Feb. 28, 2022, as Appl. No. 17/682,595.
Claims priority of provisional application 63/167,627, filed on Mar. 29, 2021.
Prior Publication US 2022/0304720 A1, Sep. 29, 2022
Int. Cl. A61B 17/3207 (2006.01); A61B 17/32 (2006.01); A61B 17/3205 (2006.01)
CPC A61B 17/320758 (2013.01) [A61B 17/32002 (2013.01); A61B 17/32053 (2013.01); A61B 2017/320775 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A debulking catheter for debulking a body lumen comprising:
a catheter body configured to be inserted into the body lumen, the catheter body having a length and including a drive shaft extending along the length of the catheter body, wherein the drive shaft is configured to be rotated about its longitudinal axis;
a tissue-removing element coupled to and configured to be rotated by the drive shaft, the tissue-removing element configured to remove tissue from the body lumen as it is rotated by the drive shaft;
a handle operatively coupled to a proximal end of the catheter body and including:
a drive operatively coupled to the drive shaft and configured to impart rotation of the drive shaft about its longitudinal axis,
an advancer operatively coupled to the drive to selectively translate the drive together with the drive shaft and the tissue-removing element to linearly advance and retract the drive shaft and the tissue-removing element relative to the handle, and
a linear-force indicator configured to provide feedback to a user indicating an amount of linear force being applied to the advancer, wherein the linear-force indicator includes a movable coupler operatively connecting the advancer to the drive such that linear force applied to the advancer is imparted to the drive through the movable coupler.