Internal device for injection and sampling of a liquid inside a living organism

A device intended to be implanted inside a living, mammalian organism, presenting a vascular system and a skin, to exchange a liquid with the vascular system through the skin and in a repeated manner using a needle, including at least:

• a sterile flexible bendable conduit linked up in a sealed manner with a tubular puncture site intended to be put under the skin,
• the puncture site being flexible and bendable to follow the body movements of the patient without causing discomfort, and constituted by a watertight biocompatible micro porous membrane, capable of being punctured numerous times while retaining waterproof qualities,
• the membrane delimiting a tubular puncture cavity having a length of between 4 cm and 15 cm and being reinforced by individual rings made of biocompatible material extending around the tubular puncture cavity,
• the sterile flexible bendable conduit having an external diameter smaller than an external diameter of the flexible bendable tubular puncture site, the diameter of the flexible bendable conduit and a length of tile flexible bendable conduit being such that the flexible bendable conduit is insertable into a vessel of the vascular system over a depth of at least 2 to 4 cm, and the flexible bendable conduit bring without reinforcement.