US 12,011,186 B2
Bevel tip expandable mouth catheter with reinforcing ring
Petrica Stefanov, Loughrea (IE)
Assigned to NEURAVI LIMITED, Galway (IE)
Filed by Neuravi Limited, Galway (IE)
Filed on Oct. 28, 2021, as Appl. No. 17/513,347.
Prior Publication US 2023/0132996 A1, May 4, 2023
Int. Cl. A61B 17/221 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/221 (2013.01) [A61B 2017/00292 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/2212 (2013.01); A61B 2090/3966 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A catheter comprising:
a proximal elongate shaft comprising a longitudinal axis, a distal end, a lumen, and a shaft braid; and
an expandable distal tip section at the distal end of the elongate shaft, the expandable distal tip section comprising a collapsed delivery configuration, an expanded deployed configuration, a tip braid, and a distal mouth comprising a beveled profile and a perimeter defined by a reinforcing ring;
wherein the reinforcing ring comprises a plurality of relief features spaced equally around the longitudinal axis, and
wherein a proximal end of the tip braid is attached to a distal end of the shaft braid.
 
16. A catheter comprising:
a proximal elongate shaft comprising a longitudinal axis, a distal end, a lumen, a shaft braid, and a marker band at the distal end of the shaft;
an expandable distal tip section connected to the distal end of the elongate shaft, the expandable distal tip section comprising a collapsed delivery configuration, an expanded deployed configuration, a supporting tip braid, and a reinforcing ring attached to the distal end of the tip braid; and
a polymer tip jacket disposed around the expandable distal tip section;
wherein at least a portion of the reinforcing ring defines a mouth plane forming an acute angle with respect to the longitudinal axis when the expandable distal tip section is in the collapsed delivery configuration;
wherein the reinforcing ring comprising a plurality of relief features spaced equally around the longitudinal axis, at least a portion of each of the relief features being proximally offset from the mouth plane, and
wherein a proximal end of the tip braid is attached to a distal end of the shaft braid.