Methods and devices for delivering or delaying lipids within a duodenum

摘要

Devices and methods described include a flow reduction device adapted and configured for use within the duodenum of a mammal having a spine, a first atraumatic feature, a second atraumatic feature, and a flow reduction element having a proximal end, a distal end, an interior portion, an exterior portion and a variable porosity between the proximal end and the distal end. One aspect of the device includes a spine having a proximal end and a distal end, an atraumatic feature positioned on at least one of the proximal end and the distal end of the spine, and a flow reduction element positioned along the spine and having a variable porosity along its length.

主权项

1. A device adapted and configured for use within the duodenum of a mammal, comprising:
a spine having a proximal end and a distal end; an atraumatic feature positioned on at least one of the proximal end and the distal end of the spine; and a flow reduction element positioned along the spine, the flow reduction element having a proximal portion with a first porosity and a distal portion with a second porosity, the first porosity greater than the second porosity such that the proximal portion permits a flow of chyme into an interior of the flow reduction element while the distal portion at least partially inhibits the flow of chyme out of the interior of the flow reduction element.