Inhaler and evaluation unit for inhaler

Abstract

The invention relates to an inhaler (10) having an evaluation unit (60) and an isolated evaluation unit (60). The invention relates to an inhaler (10), in a conventional manner and method, having a housing (20) with a suction nozzle (22) and a receiving chamber (12) with a container unit (50) arranged therein, which can be depressed in order to discharge a medium. According to the invention, an annular gap (14) is provided between the container unit (50) and the wall (24) of the receiving chamber (12), through which annular gap air is taken in, which air mixes with the medium flowing out through the outlet opening (32). The evaluation unit (60) is placed on the container unit (50). The evaluation unit can be depressed together with a container (52) of the container unit (50) and is designed to detect air sucked through the annular gap (14). To this end, the evaluation unit comprises a measurement channel (70) which forms part of a first flow path (100) for air flowing from the surroundings into the open end of the receiving chamber and which has a flow sensor (94) for detecting air flowing through the measurement channel (70). In addition to the first flow path, a second flow path (110) is provided for air flowing from the surroundings into the open end of the receiving chamber, the flow resistance of the second flow path being equal to or less than the flow resistance of the first flow path (110).

Description

technical field [0001] The invention relates to an inhaler for delivering an inhalable medium, in particular an aerosolized liquid. The inhaler according to the invention is distinguished by the evaluation unit which is attached to the container of the inhaler. In addition to the inhaler with such an evaluation unit, the invention also relates to the evaluation unit itself. [0002] The inhaler provided according to the invention with an evaluation unit corresponding to the invention can in particular be designed as an MDI dispenser (Metered Dose Inhaler (metered dose inhaler)). Such MDI dispensers generally have an approximately L-shape and possess a vertically oriented main body comprising a receiving chamber for a container unit and a suction nozzle connected to said container unit at the lower end, the suction nozzle Bend relative to the host. Background technique [0003] The use of inhalers of the type described is made such that the user places the mouthpiece betwe...

AI Technical Summary

Problems solved by technology

[0009] The problem with detecting the user's inhalation is that it is difficult to fully detect the air flow

In particular, there is the risk that the measuring means for detecting the air flow considerably increase the flow resistance and thus be detrimental rather than for a correct inhalation of the user.

Images