Inhalation training device and system for practicing of an inhalation process of a patient

1. An inhalation training system for practicing of an inhalation process of a patient, the inhalation training system comprising:

an inhalation training device;

an inhaler constructed to provide a drug to the patient and having a mouthpiece at an outlet end thereof; and

an electronic portable communications device configured for evaluation of an electronic signal received from the inhalation training device and for visual and audio feedback to the patient;

wherein the inhalation training device comprises:

a housing attachable to and detachable from the mouthpiece of the inhaler;

a microphone adapted to directly measure sound produced by the airflow occurring in the mouthpiece of the inhaler during an inhalation process of the patient and from which said electronic signal is produced; and

interface means for communicating the electronic signal to the electronic portable communications device,

wherein the housing is constructed to prevent drug release during training by a finger-shaped blocking device covering an actuation element of the inhaler.

2. An inhalation training device for practicing of an inhalation process of a patient, the inhalation training device comprising a housing attachable to and detachable from a mouthpiece of an inhaler constructed to provide a drug to the patient,

wherein the housing has a finger-shaped blocking device covering an actuation element of the inhaler in a manner acting to prevent drug release during an inhalation process of the patient, and

wherein the inhalation training device comprises a microphone adapted to directly measure sound produced by the airflow occurring in the mouthpiece of the inhaler during an inhalation process of the patient, and

wherein the microphone is positioned at a location in the inhalation training device that will be adjacent to an air-vent or nozzle of the mouthpiece of the inhaler, when the housing of the inhalation training device is attached to the mouthpiece of the inhaler, and removed from the inhaler, when the housing of the inhalation training device is detached from the mouthpiece of the inhaler.

3. The inhalation training device according to claim 2 , wherein the housing comprises at least one of a pad and a sleeve around the microphone that is made of foam plastic or soft silicone.

4. The inhalation training device according to claim 2 , wherein the microphone is adapted to measure the noise of the airflow through the air-vent or nozzle of the mouthpiece of the inhaler.

5. The inhalation training device according to claim 2 , wherein the microphone is a directional or bi-directional microphone.

6. The inhalation training device according to claim 2 , wherein the microphone is adapted to produce an electronic signal and the inhalation training device has an interface for communicating the electronic signal to an electronic portable communications device.

7. The inhalation training device according to claim 6 , wherein the interface comprises a TRRS headset connector and wherein the inhalation training device comprises electronics configured to swap the electric connection to the microphone and to ground in dependence of a connection scheme of the TRRS headset connector.

8. The inhalation training device according to claim 6 , wherein the inhalation training device comprises electronics configured to adjust a frequency range in which the microphone operates as a function of an analog front-end sensitivity of the electronic portable communications device.