Patent ID: 8818821

Claim:
A digital assistant appliance configured to assist and to monitor an operator as the operator manually prepares a liquid pharmaceutical composition to be administered to a patient using a medical instrument, said appliance comprising: a user-interface system configured to indicate, to the operator, operations to be performed by the operator to prepare the liquid pharmaceutical composition and to provide assistance preparation messages to the operator as the operator prepares the liquid pharmaceutical composition; a memory device configured to have stored thereon, for each active principle of the liquid pharmaceutical composition: one or more first sample images of vials that can contain said active principle, and/or one or more second sample images of syringes that can be used to transfer said active principle from the vials to the medical instrument; a scale positioned on a horizontal surface, the scale being configured to have positioned thereon, by the operator, a vial and/or a syringe; an artificial viewing system configured to acquire: a vial image of the vial positioned by the operator on said scale and/or a syringe image of the syringe positioned by the operator on said scale; and an electronic processing system configured to: compare said acquired vial image with each of said first sample images and determine that an incorrect vial has been positioned on said scale by the operator, when said acquired vial image does not correspond to any of said first sample images; compare the acquired syringe image with each of said second sample images and determine that an incorrect syringe has been positioned on said scale by the operator, when said acquired syringe image does not correspond to any of said second sample images; and provide a warning to the operator, through the user-interface system, when the electronic processing system determines that an incorrect vial and/or an incorrect syringe has been positioned on said scale by the operator.