Inhaler and ejection head unit attachable to the inhaler

Abstract

An ejection head unit being attachable to an inhaler for ejecting a medicine to cause a user to inhale the medicine has a plurality of ejection heads having an element generating energy for ejecting the medicine, and a plurality of ejection nozzles through which the medicine is ejected by the element. An inhaler for ejecting a medicine to allow inhalation thereof by a user has an air flow path guiding a medicine that is inhaled accompanying inspiration by the user to a suction port, an ejection head unit having a plurality of ejection heads including an element generating energy for ejecting the medicine and a plurality of ejection nozzles through which the medicine is ejected by the element, and a positioning unit for positioning a single ejection head among the plurality of ejection heads at an opening provided in one portion of the air flow path.

Description

technical field [0001] The present invention relates to an inhalation device for ejecting a medicament to be inhaled by a user. The invention also relates to a spray head unit mountable to the inhalation device. Background technique [0002] In recent years, the average life expectancy of people has increased day by day due to developments in the fields of medicine and science. This has led to an increase in the aging population. In particular, in so-called developed countries, an increase in patients with lifestyle-related diseases such as diabetes or hypertension has become a problem. On the other hand, the number of medical institutions has not increased to the extent that it can cope with the increase in patients with these diseases, and since there are no medical institutions in some communities where these patients can see a doctor, attention needs to be paid to the way to solve this problem from now on , including from the perspective of government policy. [0003...

AI Technical Summary

Problems solved by technology

When the same nozzle is used for inhalation many times, the residual liquid medicine is easy to adhere to the inner wall of the nozzle and block the nozzle

Therefore, there is such a problem that the number of ejection holes for ejecting liquid droplets decreases at the next inhalation, and the ejection amount is also smaller than a predetermined ejection amount

In addition, interval inhalation may include inhalation after each meal or once daily, in which case questions about changing properties or hygiene may arise

[0007] Although it is sufficient to solve these problems by using a chemical liquid to perform suction and return operations in a manner similar to that used in known inkjet printers, it is not advisable that the high-cost chemical liquid is wasted and the size of the device also increased

Due to these problems, it is necessary to do the tiresome work of changing the spray head for each inhalation, when the reality is that such a device is not practical

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