Connected health platform including needle-free injector system

A needle-free injector system comprising:

• a needle-free injector configured to deploy a dose of a treatment to a patient as an injection event;
• a gyroscope configured to monitor an orientation of the needle-free injector during the injection event;
• a first contact sensor configured to detect electric current at a treatment site on the patient;
• a second contact sensor configured to detect electric current adjacent a handle of the needle-free injector;
• and
• a processor configured to perform steps of:
• detecting that an actuator of the needle-free injector has deployed the dose in the injection event;
• monitoring a signal from the gyroscope during the injection event;
• determining an orientation of the needle-free injector during the injection event based on the signal from the gyroscope;
• detecting an electrical circuit formed through the first contact sensor, the second contact sensor, and the patient's body during the injection event;
• determining whether the injection event was a treatment event including a successful delivery of the dose to the patient based on the orientation of the needle-free injector during the injection event and the existence or non-existence of the electrical circuit during the injection event;
• and
• transmitting information regarding the injection event to a server.