The present invention provides a device that can move inside a biological conduit such as an intestinal tract for sampling the content therein, and a process thereof. While moving along the intestinal tract, the device can continuously collect the content in the intestinal tract. One or more convoy belts having an adsorbent layer are configured to continuously absorb and preserve the collected intestinal content. The belt loaded with the sample may be used to establish a chemical, biochemical and microbiological spectrum along the length of the intestinal tract.
