Patent ID: 8496598

Claim:
An apparatus ( 2 ) for the early diagnosis of carpal tunnel syndrome, of the type comprising: receiving means which define a receiving zone ( 8 ) for receiving a patient's finger, means for measuring the cutaneous sensibility of a finger ( 10 ) disposed in said receiving means, comprising a device for determining a sensation threshold ( 16 ) of the finger pulp and a device for measuring the innervation density ( 18 ) of the finger pulp, each device comprising protruding portions ( 22 ) adapted to be brought into contact with the finger ( 10 ), characterized in that the protruding portions ( 22 ) of the device for measuring the innervation density ( 18 ) are identical with those of the device for determining the sensation threshold ( 16 ), and the device for determining the sensation threshold ( 16 ) comprises a first set ( 20 ) of at least two filaments ( 22 ) of different diameters, means for selecting a filament of said first set ( 20 ), and means for displacing the selected filament ( 22 ) towards the receiving zone ( 8 ), parallel to the direction of said selected filament ( 22 ).