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Powder inhaler

A technology of inhalation channels and inlet tubes, which is applied in the direction of inhalers, instruments, and medical devices, and can solve the problems of not mentioning the diameter of the cylindrical cavity

Inactive Publication Date: 2012-01-11
CHIESI FARM SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application also does not mention the diameter of the cylindrical cavity

Method used

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  • Powder inhaler
  • Powder inhaler
  • Powder inhaler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] figure 1 The shown dry powder inhaler comprises a housing with a lower shell 1 and an integral cover 2 pivotably or rotatably connected to the lower shell 1 . A window 4 is formed on the side of the lower case 1 for displaying the number of dose counting units which will be described later.

[0050] Such as figure 2 As mentioned, the integral cover 2 can be opened to reveal the suction port 3 through which the user can inhale powdered medicine. A slit 6 through which air enters is formed on the upper front of the suction port 3 . Furthermore, an opening or hole 5 is formed on the top of the mouthpiece 3 through which a visible sign or marking can be seen if a dose is ready to be displayed. As will be described later, the indicia disappears when inhaled to show that each dose has been loaded.

[0051] The structure of the lower shell 1, the integral cover 2 and the suction port 3 can also be shown in the top view of the dry powder inhaler. image 3 seen in. exist ...

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PUM

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Abstract

The present invention provides a diverting device (16) used for decentralizing medicinal powder and a dry powder inhaler containing the diverting device. The diverting device comprise a swirl chamber (73), at least two air inlets (75) for tangentially guiding air to the swirl chamber (73) and an outlet (74) for outputting the air and the decentralized medicinal powder. The outlet (74) is separated from the air inlets (75) at the axial direction of the diverting device (16). The present invention is characterized in that the swirl chamber (73) is provided with openings for providing medicinal powder, the out wall of each air inlet (75) is connected to other corresponding air inlet (75) through the semicircle or arch wall parts (79) of the swirl chamber (73), each semicircle or arch wall part (79) is eccentric with the bottom round (77) (the diameter is d) of the limit swirl chamber (73), and the diameter d of the swirl chamber (73) is not smaller than 6 mm as well as not bigger than 10mm.

Description

[0001] This application is a divisional application of the invention patent application 03818352.8 (international application number PCT / EP03 / 08432) with the filing date of July 30, 2003 and the title of the invention being "dry powder inhaler". technical field [0002] The present invention relates to a dispensing device for dispensing powdered medicine and to a dry powder inhaler comprising such a dispensing device. Background technique [0003] It is generally known to dispense powdered medicaments by inhalation from an inhaler. Multi-dose dry powder inhalers comprising dry powder containers and metering means for detecting and dispensing unit doses are also known, for example as disclosed in patent publications GB2165159, EP0079478 and EP0166294. In these devices, a set of dosing recesses is carved into the surface of a cylindrical metering element, and said elements are placed in exactly the same shaped chambers. When the metering part rotates, in order to fill, the me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M15/00G06M1/04G06M1/24
CPCA61M2015/0026G06M1/248A61M2015/0075G06M1/045A61M2206/16A61M2202/064G06M1/04A61M15/0065A61M2202/062A61M15/0026A61M15/0075A61M15/0091A61M15/00
Inventor J·皮农S·舍高恩卡尔C·J·史密斯S·伯奇M·W·米德尔顿D·埃亨M·N·萨卡尔B·阿莱特E·L·利耶S·史密斯
Owner CHIESI FARM SPA