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Compact spacer for metered dose inhalers

An inhaler and dosage technology, which is applied in the direction of inhalers, respirators, nebulizers for treatment, etc., can solve the problems of too small, inconvenient to carry, and large volume

Pending Publication Date: 2022-04-01
蓝海集团有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spacers can have compact designs, but they're too short and small to be useful
More complex spacer designs, such as valved holding chambers (VHC), have wider and longer barrels to improve drug delivery efficiency, but the problem is that they are too bulky to be portable

Method used

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  • Compact spacer for metered dose inhalers
  • Compact spacer for metered dose inhalers
  • Compact spacer for metered dose inhalers

Examples

Experimental program
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Embodiment Construction

[0050] In order to assist in the understanding of the invention, reference is made to the drawings which illustrate specific embodiments in which the invention may be practiced. The drawings herein are not necessarily drawn to scale or true to scale. For example, the length and width of a component can be adjusted to fit the page size.

[0051] Figure 3A and Figure 3B An embodiment of a compact spacer 30 of the present invention is shown. Figure 3A is a perspective view. Figure 3B A side view is shown. To designate direction, the distal end is indicated by the reference label "D" and the proximal end by the reference label "P". The spacer 30 includes an aerosol chamber 31 containing aerosolized medication from the inhaler. The aerosol chamber 31 includes an adapter section 36 and a main barrel section 32 . The main barrel section 32 is fabricated as a flexible bellows with folds that allow the tube to expand and compress along its longitudinal axis "X". The fold plea...

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PUM

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Abstract

A spacing device for use with a metered dose inhaler (MDI). The spacer device includes an aerosol chamber for containing an aerosolized medicament ejected from the MDI. According to one particular design, an aerosol chamber has a front shell, a rear shell, and a retractable barrel therebetween. The telescopic cylinder includes a flexible plastic sheath supported by a helical spring. The spacing device also includes a mounting bracket for holding the MDI. The mounting bracket fixes the MDI such that the spray outlet of the MDI cooperates with the aerosol chamber. Moreover, the assembly is configured such that the aerosol chamber is aligned substantially parallel to the actuator cover of the MDI. During use, the aerosol chamber is folded down away from the MDI. The aerosol chamber then extends outwardly to increase its volume.

Description

technical field [0001] The present invention relates to a spacer for metered dose inhalers for administering medicaments. Background technique [0002] Metered dose inhalers (MDIs) are used to administer medications, such as bronchodilators and corticosteroids, to the lungs. Figure 1 shows an example of a metered dose inhaler 10 and its mechanism of action. The metered dose inhaler 10 includes a pressurized drug canister 12 and an actuator 19 that retains the canister 12 . The actuator 19 comprises a cover portion 14 for holding the canister 12 , a nozzle 15 and a nozzle 16 which is also an aerosol spray outlet 18 . [0003] Canister 12 houses drug reservoir 17 and is pressurized with a propellant. A metering valve 13 is located at the bottom of the tank 12 and the drug flows out through the stem 11 . The user loads the canister 12 into the housing portion 14 of the actuator 19 so that the rod 11 fits into the nozzle 15 . When the user presses down on the canister 12, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M15/00A61M11/00A61M16/00
CPCA61M15/0025A61M15/0088A61M15/009A61M15/0016A61M2209/08A61M15/0001A61M15/0013A61M15/0021A61M15/0086A61M15/0023
Inventor S·白C·白A·玛驰
Owner 蓝海集团有限责任公司
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