Patent ID: 8343032
Filing Date: 2013-01-01
Classification: A61F,Y02A

Abstract:
1. In a controllable gastric band including a nonextensible back and a first chamber arranged to be on a stomach or esophagus side of the back for controlling restriction of the stomach or esophagus by supplying and discharging liquid to and from the first chamber, the improvements in that a second chamber is provided on the stomach or esophagus side of the back, the second chamber being a sensor for detection of a pressure increase in the stomach or esophagus, and the first chamber is connected via the second chamber with a reservoir chamber in a manner to control the restriction by displacement of the liquid between the reservoir chamber and the first chamber as a function of the detected pressure, wherein a device for carrying out a liquid exchange from the first chamber to the second chamber or reservoir chamber, respectively, is provided between the first chamber and the second chamber or reservoir chamber, respectively and is comprised of a common partition wall containing micropores and arranged between the chambers or between the first chamber and the reservoir chamber, respectively.