Gastric band with position sensing

摘要

The problem of accessing an injection port transcutaneously is resolved using wireless position transducers (34,36) in an inflation port assembly (26) and in an injection syringe (28). The measurements provided by the transducers indicate to the practitioner the position and orientation of syringe relative to the injection port. A console (46) provides a visual indication of the relative position and orientation so as to guide the practitioner to insert the syringe at the proper site and in the proper direction and to penetrate the port cleanly and correctly.