US 12,433,634 B2
Catheter-based occlusion removal systems and method
John M. Brinkmann, Flagstaff, AZ (US); and Paul D. Goodman, Flagstaff, AZ (US)
Assigned to W. L. Gore & Associates, Inc., Newark, DE (US)
Filed by W. L. Gore & Associates, Inc., Newark, DE (US)
Filed on Dec. 22, 2021, as Appl. No. 17/559,807.
Application 17/559,807 is a continuation of application No. 16/759,656, granted, now 11,224,457, previously published as PCT/US2018/006675, filed on Dec. 20, 2018.
Claims priority of provisional application 62/609,046, filed on Dec. 21, 2017.
Prior Publication US 2022/0168010 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/3207 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/320758 (2013.01) [A61B 2017/00867 (2013.01); A61B 2017/320716 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A catheter system for removal of occlusive material in a body lumen, the system comprising:
a catheter body having a lumen, and extending between a distal end and a proximal end, the catheter body having a distal portion, a proximal portion, and a plurality of subsections including a first subsection being a filtration section including a filter media configured to permit blood to pass from the lumen of the catheter body and to inhibit the occlusive material from passing out of the lumen of the catheter body, and a second subsection being impermeable to blood and the occlusive material;
a control handle coupled to the proximal portion of the catheter body; and
a cutter assembly including,
a drive mechanism extending between the proximal portion and the distal portion of the catheter body, the drive mechanism being operatively connected to the control handle; and
a conveyor extending within the distal portion of the catheter body, the conveyor being coupled to the drive mechanism such that the conveyor is rotatable with the drive mechanism to convey the occlusive material from the body lumen proximally within the catheter body and through the filtration section such that blood is permitted to pass from the lumen of the catheter body and the occlusive material is inhibited from passing out of the lumen of the catheter body and is conveyed proximally within the lumen of the catheter body.