Patent ID: 8137349

Claim:
An intra-corporal expandable device comprising a first elongated part ( 1 ), a second part ( 2 ) mounted telescopically relative to the said first part ( 1 ), first links ( 61 ) for attaching to an organism at a first end ( 11 ) of the said first part ( 1 ), second links ( 62 ) for attaching to the organism at a first end ( 21 ) of the said second part ( 2 ), a rod ( 3 ) with at least one thread, the rotation of which leads to the displacement of the said second part ( 2 ) relative to the said first part ( 1 ), means ( 4 ) for controlling the rotation of the said rod ( 3 ) and connections between these components wherein the said rod ( 3 ) is mounted between two ends which come closer when the said device is elongated, the second end ( 12 ) of the said first part ( 1 ) opposite the said first end ( 11 ) of the said first part ( 1 ) and the second end ( 22 ) of the said second part ( 2 ) opposite the said first end ( 21 ) of the said second part ( 2 ), so that the rod ( 3 ) is under traction when the device is in operation.