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Device and a method for facilitating monitoring the cross-section of a gastric sleeve during formation thereof

  • US 9,439,633 B2
  • Filed: 10/11/2010
  • Issued: 09/13/2016
  • Est. Priority Date: 10/09/2009
  • Status: Active Grant
First Claim
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1. A method for monitoring the internal transverse cross-section of a gastric sleeve during formation thereof to a desired internal transverse cross-section in a subject in a sleeve gastrectomy, the method comprising:

  • providing a balloon catheter comprising a catheter having an elongated primary inflatable element located thereon and a secondary inflatable element located thereon and spaced apart distally from the primary inflatable element, the primary inflatable element when inflated having an elongated main cylindrical portion extending from a proximal end thereof to a distal portion of greater transverse cross-section than the transverse cross-section of the main cylindrical portion, and an intermediate portion located between the main cylindrical portion and the distal portion tapering proximally from the distal portion to the main cylindrical portion, the main cylindrical portion, the intermediate portion and the distal portion of the primary balloon being inflatable to transverse cross-sections similar to the desired internal transverse cross-sections to which the gastric sleeve is to be formed,locating the primary inflatable element in the stomach of the subject with the secondary inflatable element located in the duodenum adjacent the pylorus with the pylorus located between the primary and secondary inflatable elements,inflating the secondary inflatable element with the secondary inflatable element in engagement with the pylorus for correctly locating the primary inflatable element in the stomach to enable the gastric sleeve to be formed around the primary inflatable element,inflating the primary inflatable element with an inflating medium so that the transverse cross-section of the distal portion of the primary inflatable element is greater than the transverse cross-section of the main cylindrical portion of the primary inflatable element, and the transverse cross-sections of the main cylindrical portion, the intermediate portion and the distal portion of the primary inflatable element approximate to the internal transverse cross-sections to which the gastric sleeve is to be formed,urging the portion of the stomach which is to form the gastric sleeve around the inflated primary inflatable element,suturing or stapling the stomach to form the gastric sleeve around the inflated primary inflatable element, andmonitoring one of a transverse cross-sectional area of the inflated primary inflatable element, a diameter of the inflated primary inflatable element and the pressure of the inflating medium in the inflated primary inflatable element during suturing or stapling of the stomach in order to produce the gastric sleeve of the desired transverse cross-section.

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