US 12,232,763 B2
Catheter having a spiral drive shaft
Yuichi Tada, Santa Clara, CA (US); John Barritt, San Jose, CA (US); and Mike Foster, East Palo Alto, CA (US)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 30, 2022, as Appl. No. 17/957,973.
Claims priority of provisional application 63/407,539, filed on Sep. 16, 2022.
Prior Publication US 2024/0090916 A1, Mar. 21, 2024
Int. Cl. A61B 17/3207 (2006.01); A61M 25/09 (2006.01)
CPC A61B 17/320758 (2013.01) [A61M 25/09 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A catheter for removing an object in a body lumen, comprising:
a rotatable drive shaft including a spiral portion having a spiral shape near a distal end of the drive shaft;
an outer tube surrounding the drive shaft;
a cutting member connected to the distal end of the drive shaft to be rotated by the drive shaft with respect to a rotation axis and by which the object is cut;
a guide wire tube attached to a distal portion of the outer tube, extending substantially straight along a center spiral axis of the spiral portion, and having a first guide wire lumen; and
a distal tip attached to a distal end of the guide wire tube and having a second guide wire lumen extending parallel to the rotation axis and communicating with the first guide wire lumen.