892.5710—Radiation therapy beam-shaping block.
               		
               		
               	 	
               	 	
               	 	
               	 		
    
        
        (a) Identification.
         A radiation therapy beam-shaping block is a device made of a highly attenuating material (such as lead) intended for medical purposes to modify the shape of a beam from a radiation therapy source.
     
    
        
        (b) Classification.
         Class II.