This combines the traditional symbols of scales for law and Rod of Asclepius for medicine.
I derived two mediawiki iages  for this purpose
I combined two  images from mediawiki commons.
File:Rod_of_Asclepius_vector.svg by Thomas Shafee 
and 
File:Imbalanced_justice_scale_silhouette.svg by 991joseph 

to create a new image
Thomas Shafee
991joseph

Talpedia