Devices and methods for gastrointestinal bypass

摘要

Devices and methods for gastrointestinal bypass are described. A gastrointestinal bypass device includes a gastrointestinal cuff and a gastrointestinal sleeve. The cuff may be configured to be attached in the esophagus, and may be sufficiently flexible to expand and collapse to conform with the inside of the esophagus to allow the esophagus to function substantially normally. The sleeve is configured to be coupled to the cuff, and may be made of a material that is floppy or flaccid but does not substantially expand radially.

主权项

1. A device for delivering a tissue anchor through a tissue wall, the device comprising:
a catheter having a central lumen, the catheter having a side port formed in a distal portion of the catheter, the side port having a proximal side closer to a proximal portion of the catheter and a distal side farther from the proximal portion of the catheter; a sled slidably disposed in the central lumen of the catheter, the sled having a sheathing channel, the sheathing channel having a proximal opening configured to be positioned at the distal side of the side port; a delivery needle slidably disposed in the sheathing channel, the delivery needle having a needle lumen configured to receive the tissue anchor, the delivery needle having a tip pointed proximally, the delivery needle configured to be advanced proximally through the distal side of the side port, the sheathing channel configured to sheath the delivery needle, the delivery needle having a retracted position wherein the tip of the delivery needle is positioned at the distal side of the side port; and a pushrod slidably disposed in the needle lumen.