Controllable gastric band
First Claim
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 thata 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, andthe 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.
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Accused Products
Abstract
The invention relates to an adjustable stomach band with a rigid back and a chamber, arranged on the stoma side of the back, for control of stoma constriction by means of introduction or removal of fluid from the chamber. According to the invention, such a stomach band with a preferably automatic setting of the stoma constriction, depending on the food intake, is possible, whereby a second chamber is provided to the stoma side of the back, directly connected to, or cooperating with the first chamber, such that the control of the stoma constriction is achieved by means of displacing the fluid between the chambers or between a reservoir and the stoma-constricting chamber. An auto-regulation can be achieved, whereby a second chamber is embodied as sensor for recording a pressure rise in the stomach and the control of the stoma constriction is achieved depending on the recorded pressure by means of displacement of the fluid from the chamber, or from the reservoir into the stoma-constricting chamber.
66 Citations
12 Claims
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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.
Specification