| 摘要 |
A self-regulating gastric band apparatus for adjusting stoma size in a patient. The apparatus includes an adjustable gastric band that has an expandable inner ring with a lumen or cavity for receiving a fluid. A band adjustment assembly is provided for implanting with the gastric band that includes a sensor for sensing a property of the gastric band, such as of the expandable inner ring. The band adjustment assembly further includes a pump assembly connected to the lumen of the expandable inner ring and to a controller that can operate the pump assembly to adjust the volume of the fluid in the lumen based on the sensed gastric band property. The band adjustment assembly includes memory storing an operating range for the particular band property, and the pump assembly is operated to maintain the sensed band parameter within the operating range. |
