Gastroduodenal balloon tubes and methods for use in localized hypothermia
View Patent ↗Materials and methods for producing localized hypothermia in a patient (e.g., for treatment of acute pancreatitis and pancreatic cancer).
1. A gastroduodenal device comprising:
a balloon catheter comprising a proximal end and a distal end;
a gastric balloon attached to and located along the hollow balloon catheter between the proximal end and the distal end of the balloon catheter;
a duodenal balloon attached to and located along the balloon catheter between the gastric balloon and the distal end of the balloon catheter, wherein the duodenal balloon is spaced from the gastric balloon along the balloon catheter by a distance that, when the gastric balloon is in the stomach of a patient, is configured to place a first portion of the duodenal balloon in the duodenum of a patient proximal from the ampulla of Vater and a second portion of the duodenal balloon in the duodenum distal from the ampulla of Vater, and wherein the duodenal balloon comprises an intermediate portion configured to be located proximate the ampulla of Vater when the gastric balloon is in the stomach of the patient, wherein the intermediate portion is configured to define a space in the duodenum for the ampulla of Vater, wherein the intermediate portion comprises a constricted size relative to the first portion and the second portion;
a duodenal balloon lumen passing through the balloon catheter and in fluid communication with the duodenal balloon, wherein the duodenal balloon lumen is configured to deliver duodenal balloon cooling fluid to the duodenal balloon; and
a jejunal extension tube passing through the balloon catheter, wherein the jejunal extension tube extends to a port located distal of the first duodenal balloon, wherein the jejunal extension tube is configured to deliver nutrients directly into the jejunum of the patient when the gastric balloon is located in the stomach and the first and second portions of the duodenal balloon are located in the duodenum of the patient.
2. The device of claim 1 , wherein the gastric balloon further comprises a posterior chamber and an anterior chamber, and wherein the device further comprises a posterior chamber lumen in fluid communication with the posterior chamber and an anterior chamber lumen in fluid communication with the anterior chamber, wherein the posterior chamber lumen is configured to deliver gastric balloon cooling fluid to the posterior chamber of the gastric balloon.
3. The device of claim 2 , wherein the gastric balloon comprises a radio-opaque marker, wherein the radio-opaque marker is configured such that the posterior chamber is positioned adjacent the pancreas when the radio-opaque marker is positioned adjacent the pancreas.
4. The device of claim 2 , wherein the gastric balloon comprises a weighted distal end, wherein the weighted distal end comprises a portion of the gastric balloon closest to the duodenal balloon.
5. The device of claim 2 , wherein the gastric balloon comprises:
a radio-opaque marker, wherein the radio-opaque marker is configured such that the posterior chamber is positioned adjacent the pancreas when the radio-opaque marker is positioned adjacent the pancreas; and
a weighted distal end, wherein the weighted distal end comprises a portion of the gastric balloon closest to the duodenal balloon.
6. A gastroduodenal device comprising:
a balloon catheter comprising a proximal end and a distal end;
a gastric balloon attached to and located along the hollow balloon catheter between the proximal end and the distal end of the balloon catheter;
a duodenal balloon attached to and located along the balloon catheter between the gastric balloon and the distal end of the balloon catheter, wherein the duodenal balloon is spaced from the gastric balloon along the balloon catheter by a distance that, when the gastric balloon is in the stomach of a patient, is configured to place a first portion of the duodenal balloon in the duodenum of a patient proximal from the ampulla of Vater and a second portion of the duodenal balloon in the duodenum distal from the ampulla of Vater, and wherein the duodenal balloon comprises an intermediate portion configured to be located proximate the ampulla of Vater when the gastric balloon is in the stomach of the patient, wherein the intermediate portion is configured to define a space in the duodenum for the ampulla of Vater, wherein the intermediate portion comprises a constricted size relative to the first portion and the second portion; and
a duodenal balloon lumen passing through the balloon catheter and in fluid communication with the duodenal balloon, wherein the duodenal balloon lumen is configured to deliver duodenal balloon cooling fluid to the duodenal balloon;
a jejunal extension tube passing through the balloon catheter, wherein the jejunal extension tube extends to a port located distal of the first duodenal balloon, wherein the jejunal extension tube is configured to deliver nutrients directly into the jejunum of the patient when the gastric balloon is located in the stomach and the first and second portions of the duodenal balloon are located in the duodenum of the patient; and
wherein the gastric balloon further comprises a posterior chamber and an anterior chamber, and wherein the device further comprises a posterior chamber lumen in fluid communication with the posterior chamber and an anterior chamber lumen in fluid communication with the anterior chamber, wherein the posterior chamber lumen is configured to deliver gastric balloon cooling fluid to the posterior chamber of the gastric balloon.
7. The device of claim 6 , wherein the gastric balloon comprises a radio-opaque marker, wherein the radio-opaque marker is configured such that the posterior chamber is positioned adjacent the pancreas when the radio-opaque marker is positioned adjacent the pancreas.
8. The device of claim 6 , wherein the gastric balloon comprises a weighted distal end, wherein the weighted distal end comprises a portion of the gastric balloon closest to the duodenal balloon.
9. The device of claim 6 , wherein the gastric balloon comprises:
a radio-opaque marker, wherein the radio-opaque marker is configured such that the posterior chamber is positioned adjacent the pancreas when the radio-opaque marker is positioned adjacent the pancreas; and
a weighted distal end, wherein the weighted distal end comprises a portion of the gastric balloon closest to the duodenal balloon.