| 摘要 |
According to one aspect of the invention, a device (20) for performing a medical procedure includes a first elongated member (22) that is adapted to be positioned inside of an esophagus and a stomach, the first elongated member (22) having a distal flexible portion (28) having a first retracted configuration (A1) and a second expanded configuration (B), the second expanded configuration (B) defining an arcuate shape. The device (20) also includes a second elongated member (24) that is located adjacent to the first elongated member (22), which is adapted to be positioned inside of the esophagus and the stomach; the second elongated member (24) having a proximal flexible portion (40) and a distal flexible portion (42); the proximal flexible portion (40) having a first expanded configuration (C) and a second expanded configuration (D), the second expanded configuration (D) defining an arcuate shape, the distal flexible portion (42) having a first retracted configuration (A2) and a second expanded configuration (D) defining an arcuate shape; the proximal flexible portion (40) and the distal flexible portion (42) being coaxially aligned with each other when in the first retracted configuration (A2).
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