Liquid medication administration system with flow regulating module

Abstract

A method of injecting primary liquid into a subject can include flowing primary liquid through a flow-regulating module with a pump. The flow-regulating module is configured to allow liquid flow and stop air flow. Liquid can be detected in the main line while the primary liquid flows through the flow-regulating module. Air can be detected in the main line after the primary liquid in the flow-regulating module, and then the flow valve of the flow-regulating module is closed when air is present in the main line. The pump can then cause the flowing of the clearing liquid into the main line behind with primary liquid without air entering the main line downstream from the flow-regulating module. As a result, the primary liquid is injected into the subject followed by clearing liquid without air.

Dependencies are inferred from the claim text.