A variety of passive intragastric 
implant devices for 
obesity treatment are disclosed. Such passive implants do not autonomously change shape, but instead react within the 
stomach to induce satiety. The implants may take up volume within the 
stomach, thus reducing the digestive capacity. Additionally, the implants may contact areas within the 
stomach, such as the cardia surrounding the 
esophageal sphincter, to stimulate satiety-inducing nerves. Also, a number of implants slow 
gastric emptying by blocking or otherwise impeding flow through the 
pyloric sphincter. Other implants 
delay digestion by providing a duodenal sleeve. A number of implants combine two or more of these satiety-inducing features. Methods of 
implant are disclosed including compressing the implants within a delivery tube and transorally advancing the implants through the 
esophagus to be deployed within the stomach. Removal of the implants occurs in the reverse.