| 摘要 |
The invention relates to an expandable intragastric balloon (1) to be implanted in, and subsequently removed from, the stomach (2) of a patient through natural orifices as part of a treatment for obesity. The intragastric balloon (1) includes an outer casing (3) which is sufficiently flexible that it can change from a first configuration, known as the introduction configuration, to a second configuration, known as the deployed configuration in which the balloon adopts the functional shape thereof. The balloon (1) is characterised in that it includes means for configuring same in an extraction configuration (10), said means exerting a stress on the intragastric balloon (1) such that it changes from the deployed configuration to a third noticeably-smaller contracted volume configuration, known as the extraction configuration, by acting on the outer casing (3) such that the casing (3) essentially returns to or towards a predetermined shape corresponding to the extraction configuration. The invention is suitable for intragastric balloons. |
