Wearable medical device for monitoring intravenous injection

A wearable medical device comprising:

• an annular housing configured to attach to a wrist of a patient;
• a first receptacle attached to the annular housing for receiving a first portion of a tube of an intravenous delivery system, wherein the first portion of the tube comprises a shape-memory polymer;
• a flow regulator attached to the annular housing and in contact with the first portion of the tube, wherein the flow regulator is configured to modify a geometric characteristic of the first portion of the tube by activating the shape-memory polymer, wherein activating the shape-memory polymer alters a curvature of the tube, wherein altering the curvature of the tube alters a flow of a medication in the tube;
• a pulse monitor attached to the annular housing and configured to contact the wrist of the patient and measure a pulse of the patient;
• and
• a wireless transmitter for communicating with a user console.