Patent ID: 8727617

Claim:
A dental radiography device comprising: an X-ray sensor ( 12 ; 112 ) which comprises a sensitive surface ( 22 ; 122 ) which is capable of detecting X-rays of an X-ray beam, the sensitive surface ( 22 ; 122 ) being oriented towards a front face ( 16 ; 116 ) of the sensor ( 12 ; 112 ); and a device for positioning the X-ray sensor comprising: a receiver ( 32 ; 132 ) for receiving the X-ray sensor ( 12 ; 112 ), the receiver ( 32 ; 132 ) and the received X-ray sensor ( 12 ; 112 ) being intended to be positioned in the mouth of a patient, behind the teeth of the patient to be radiographed, and an oblong arm ( 34 ; 134 ) which is intended to extend out of the mouth of the patient, the oblong arm ( 34 ; 134 ) comprising: an end ( 35 ; 135 ) fixed to the receiver ( 32 ; 132 ), and an outwardly directed portion ( 34 B; 134 B) which extends forward of the sensor ( 12 ; 112 ) and which is intended to extend out of the mouth of the patient, the dental radiography device being characterised in that the receiver ( 32 ; 132 ) is contained in a rear cylindrical space ( 33 B; 133 B) which extends at the rear of a rear face ( 18 ; 118 ) of the X-ray sensor ( 12 ; 112 ), opposite the front face ( 16 ; 116 ), the rear cylindrical space ( 33 B; 133 B) being defined by a movement, along a lateral edge of the sensor ( 12 ; 112 ), of a generating straight line ( 333 ) which is perpendicular relative to the sensitive surface ( 22 ; 122 ), one of the receiver ( 32 ; 132 ) or the X-ray sensor ( 12 ; 112 ) comprises a pin ( 26 ; 126 ), the other of the receiver ( 32 ; 132 ) or the X-ray sensor ( 12 ; 112 ) comprises a piece ( 38 ; 137 ) for receiving the pin ( 26 ; 126 ), the pin ( 126 ) comprises first energy and data exchange means ( 140 ), and the receiver ( 138 ) comprises second energy and data exchange means ( 142 ), cooperating with the first energy and data exchange means ( 140 ).