US 11,752,311 B2
Apparatus and methods for restoring tissue
D H Perkins, Woods Cross, UT (US); Calvin Turland, Montreal (CA); Teresa Mihalik, Montreal (CA); and Rany Pea, Montreal (CA)
Assigned to Alucent Biomedical, Inc., Salt Lake City, UT (US)
Filed by Alucent Biomedical, Inc., Salt Lake City, UT (US)
Filed on Sep. 2, 2020, as Appl. No. 17/10,092.
Prior Publication US 2022/0062598 A1, Mar. 3, 2022
Int. Cl. A61M 25/10 (2013.01)
CPC A61M 25/1011 (2013.01) [A61M 25/104 (2013.01); A61M 25/1025 (2013.01); A61M 2025/105 (2013.01); A61M 2025/1086 (2013.01); A61M 2205/05 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a catheter shaft extending from a proximal end to a distal tip;
a plurality of serial balloons positioned on a translucent distal segment of the catheter shaft proximal to the distal tip and positioned inside of and concentric with a distal balloon, the plurality of serial balloons in fluid communication with an inflation source via a first lumen, each of the plurality of serial balloons having a selectively expandable outermost radial surface and the plurality of serial balloons comprising:
a translucent material; and
a series of isolated volumetric regions, one of each of the series of isolated volumetric regions being positioned between adjacent balloons of the plurality of serial balloons and recessed from the outermost radial surfaces of the plurality of serial balloons;
the distal balloon positioned around the plurality of serial balloons; and
a light fiber positioned in the catheter shaft and extending through the translucent distal segment,
wherein the distal balloon comprises a plurality of apertures radially aligned with the isolated volumetric regions of the plurality of serial balloons.