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Spacer for metered dose inhaler

An aerosol and mist storage technology, which is applied in the direction of inhalers, medical equipment, and other medical equipment, etc., can solve the problems of small air intake passage area of ​​the valve, difficult disassembly to clean or replace the valve, complex valve structure design, etc. , to achieve the effect of easy disassembly

Active Publication Date: 2015-02-18
RESGOOD MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the common MDI spacer adopts an annular valve with a blocking disc, which is characterized by compact structure and good sealing performance, but the inhalation resistance of the MDI spacer is relatively large due to the small air intake channel area of ​​the valve
Moreover, the valve part of the one-way valve is a sealed structure, which is difficult to disassemble to clean or replace the valve
In addition, the structural design of this valve is relatively complex, resulting in a complex structure of the MDI spacer

Method used

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  • Spacer for metered dose inhaler
  • Spacer for metered dose inhaler
  • Spacer for metered dose inhaler

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Embodiment Construction

[0046] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0047] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes ...

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Abstract

The invention discloses a spacer for a metered dose inhaler. The spacer comprises a shell, a one-way valve and an inhalation component, wherein a cavity is formed in the shell and a one-way valve supporting structure is formed at one end; the one-way valve supporting structure comprises a sealing part, a mounting seat and an exhaust passage; the sealing part is provided with a suction hole; the one-way valve comprises a joint part, a first valve flap and a second valve flap; the first valve flap and the second valve flap can bend elastically relative to the joint part along the same direction, so that the first valve flap seals the suction hole and meanwhile the second valve flap opens the exhaust passage, or the first valve flap opens the suction hole and meanwhile the second valve flap seals the exhaust passage; the inhalation component is detachably buckled on the shell and is provided with the one-way valve in a covering manner. The spacer has smaller inhalation resistance and a simpler structure, and the one-way valve is detachable.

Description

technical field [0001] The invention relates to a spacer tank, in particular to a spacer tank for inhaling quantitative aerosol. Background technique [0002] Chronic respiratory infection, especially asthma, has become one of the major diseases affecting human health and quality of life. At present, the most common method for treating asthma is MDI (Metered dose inhalers, quantitative aerosol) inhalation therapy, which uses the breathing process to inhale the MDI drug and directly delivers the MDI drug to the lungs through the airway under the action of the inspiratory airflow. [0003] In order to achieve this therapy, a spacer for inhaling metered-dose aerosols is generally used in conjunction with an MDI drug nebulizer to deliver the drug to the lungs. The MDI spacer is used as a buffer container to store the MDI medicine ejected by the MDI medicine injector, and then the patient inhales the medicine from the MDI spacer. Therefore, using the MDI spacer can separate the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M15/00A61M31/00
Inventor 雷明初费诗超樊中成
Owner RESGOOD MEDICAL CO LTD
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