Patent ID: 9717617
Date: 2017-08-01
CPC Classifications: A61F

Claim:
1. A bypass device implantable in a gastrointestinal tract of a human, which includes small intestines, to inhibit absorption of nutrients, the bypass device comprising: a support frame positionable in the gastrointestinal tract in an implanted condition of the bypass device, the support frame possessing a central axis and extending over an axial extent between opposite axial ends of the support frame, the support frame surrounding an interior of the support frame; a liner fixed to the support frame so that in the implanted condition of the bypass device the liner is supported by the support frame and anchored in place in the gastrointestinal tract which includes small intestines, the liner being made of a material different from the support frame and being configured to extend away from the support frame and on at least a portion of the small intestines when the support frame is positioned in the gastrointestinal tract in the implanted condition of the bypass device; the support frame comprising a plurality of frame members configured and connected to one another so that the support frame possesses a plurality of axially and circumferentially spaced apart openings; at least some of the frame members including a plurality of coil springs; the plurality of coil springs including a plurality of first coil springs and a plurality of second coil springs; each of the first coil springs being defined by a first number of windings of the frame portion; each of the second coil springs being defined by a second number of windings of the frame portion; and the number of windings of the frame portion defining each of the first coil springs being different from the number of windings of the frame portion defining each of the second coil springs.