Inhaler spacer
Inhaler Spacer
An Inhaler Spacer (pronunciation: /ɪnˈheɪlər ˈspeɪsər/) is a device used to increase the efficacy of inhalers in the delivery of medication to the lungs.
Etymology
The term "Inhaler Spacer" is derived from the English words "inhaler", which refers to a device that produces a vapour to be inhaled, and "spacer", which in this context refers to a device that creates space or distance.
Function
The Inhaler Spacer is designed to be used in conjunction with a metered-dose inhaler (MDI). It acts as a holding chamber for the medication and has a one-way valve that allows the patient to inhale the medication at their own pace. This reduces the coordination required between actuation of the inhaler and inhalation by the patient, making it easier for the medication to reach the lungs.
Types
There are two main types of Inhaler Spacers: valved holding chambers (VHCs) and volume spacers. VHCs have a one-way valve that keeps the medication in the chamber until the patient inhales. Volume spacers are simpler and do not have a valve.
Usage
To use an Inhaler Spacer, the MDI is first shaken and then attached to the spacer. The medication is then released into the spacer, and the patient inhales slowly and deeply through the mouthpiece of the spacer.
Related Terms
- Metered-dose inhaler
- Asthma
- Chronic obstructive pulmonary disease (COPD)
- Bronchodilator
- Corticosteroid
External links
- Medical encyclopedia article on Inhaler spacer
- Wikipedia's article - Inhaler spacer
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