US 12,290,470 B2
Reinforced esophageal heat transfer devices
Erik Kulstad, Dallas, TX (US); and Frank E. Garrett, Jr., Barrington, IL (US)
Assigned to Advanced Cooling Therapy, Inc., Chicago, IL (US)
Filed by Advanced Cooling Therapy, Inc., Chicago, IL (US)
Filed on Sep. 6, 2023, as Appl. No. 18/462,339.
Application 18/462,339 is a continuation of application No. 16/498,263, abandoned, previously published as PCT/US2018/024493, filed on Mar. 27, 2018.
Claims priority of provisional application 62/480,842, filed on Apr. 3, 2017.
Claims priority of provisional application 62/477,012, filed on Mar. 27, 2017.
Prior Publication US 2024/0164940 A1, May 23, 2024
Int. Cl. A61F 7/12 (2006.01); A61F 7/00 (2006.01)
CPC A61F 7/12 (2013.01) [A61F 2007/0054 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A reinforced esophageal heat transfer device comprising:
a distal end configured for nasopharyngeal or oropharyngeal insertion into an esophagus of a subject;
a proximal end including an inlet tube and an outlet tube;
a heat transfer region between the distal end and the proximal end;
a heat transfer medium supply lumen for providing a supply fluid path for flow of a heat transfer medium to and through the heat transfer region, the heat transfer medium supply lumen being connected to the inlet tube;
a heat transfer medium return lumen for providing a return fluid path for flow of the heat transfer medium through and from the heat transfer region, the heat transfer medium return lumen being connected to the outlet tube;
a gastric access lumen passing through the heat transfer region and disposed parallel to the heat transfer medium supply lumen and the heat transfer medium return lumen, the gastric access lumen configured to allow gastric decompression or drainage, wherein each of the heat transfer medium supply lumen, the heat transfer medium return lumen, and the gastric access lumen are separated from each of the other two lumens by at least one internal wall; and
a pair of metal reinforcing return coils that are arranged in parallel within the outlet tube and the heat transfer medium return lumen and that are configured for reinforcing the outlet tube and the heat transfer medium return lumen to enable the heat transfer medium to flow through the return fluid path via negative pressure applied to the outlet tube.