spacer

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spa·cer

(spā'sĕr),
A device attached to a metered-dose inhaler that aids delivery of inhaled medications.

spa·cer

(spās'ĕr)
An extension device for a metered-dose inhaler; it is designed to eliminate the need for hand-breath coordination and to reduce the deposition of large aerosol particles in the upper airway.

spacer

(spā′sĕr)
A specially shaped container that improves the delivery of inhaled aerosols, such as beta2 agonists, steroids, and other antiasthmatic drugs, to the bronchi and lungs. Spacers form a channel between metered dose inhalers and the mouth through which medicated mists can be inhaled. They improve the performance of antiasthmatic drugs because without them, a large quantity of inhaled medications end up in the mouth, on the palate, on the buccal mucosa, or on the tongue and fail to reach their intended target in the lower airways.

Patient care

Spacers improve the delivery of inhaled drugs to any patient who cannot coordinate the use of metered dose inhalers, and in all patients who used inhaled steroids. They are also recommended for young children, e.g. under the age of 6.

References in periodicals archive ?
Among the main failures that may take place in chest drainage are: obstruction of the tube (due to clots or fibrin, inappropriate clamping, kinking caused by excessive length of the extension tube), inappropriate positioning, fixation, and connection of the drain, inappropriate height of the water seal, improper positioning of the collection bottle, obstruction of the air vent, negligence when checking oscillation of the water seal (Nishida et al., 2011).
From the example above, we see that the longer the extension tube you put in (say, 68mm the total length of three tubes stack together), the higher the magnification ratio you get from your macro lens and extension tube together.
The stop cock was then turned so that the syringe communicates with both extension tubes. The system is now a closed one where pressure in the syringe is same as that in the anterior compartment of and the manometer and is measured by the manometer.
The team decided that it would be more advantageous to lower the inversion unit into the pit with a backhoe rather than trying to maneuver the 10-foot extension tube inside the pit.
Available as a compact, extension tube or cable version, Soliphant M provides reliable level measurement from 145mm to 20m in solids applications from cement, mortar and dye powders to powdered milk, sugar and animal feed.
A bellows of the kind made for use with SLR cameras works well as an extension tube. Adapters mount the lens with the RMS-head.
Additional features include an internally restrained anti-rotation stainless steel extension tube, aluminum housing, powdered metal gearing and self-locking lead screw, and a load-limiting ball detent clutch.
You can help keep the grease gun's extension tube clean and ready for use with a protective cap, NSN 5340-00-904-6633.
With a Canon EOS-3, I alternated lenses between a tripod-mounted Canon EF 300mm f/4L and Canon EF 500mm f/4.5L, using both with a 25mm extension tube to permit closer focusing.
The proportion of reflected radiation is higher for the longer extension tube compared to shorter tube.
Tungsten carbide knives are fixed to the rotating auger and the stationary extension tube. They can be easily replaced, sharpened or adjusted.
Settled dust samples were collected with a Eureka Mighty-Mite 7.0 Ampere vacuum cleaner (Eureka Company, Bloomington, IL) fitted with 19-mm x 90-mm cellulose extraction thimbles (Whatman International, Ltd., Maidstone, England) in the distal end of the extension tube and a clean crevice tool.