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Model DP-4 Dry Powder Insufflator™
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Description
The DP-4 Dry Powder Insufflator™ is an easy-to-use, hand-operated pulmonary drug delivery device designed to produce a puff of fine particles from the end of a small-diameter delivery tube. The device twists open at the center to reveal a holding chamber that can be filled manually with a small amount (1 - 5 mg) of powdered material. Prior to release by the air pulse, the powder sample is held securely in the holding chamber by a valve assembly that is specially designed to prevent loss of the sample or contamination from the outside during handling and activation of the device. By applying small "puffs" of air to the device using the small, plastic syringe (3 ml) included with it, it is possible to administer a range of dry powder substances to the lungs. The characteristics of the powder sample (particle size, etc.) are essentially unaffected by passage through the device.
Made of PEEK™ (polyetheretherketone) plastic, the DP-4 is virtually indestructible chemically and is unaffected by temperatures normally encountered in heat sterilization procedures. In addition, being lightweight, the device permits highly quantifiable gravimetric determination of the amount of sample that actually reaches the lungs. Because the tip DP-4 Dry Powder Insufflator delivery tube can be positioned near the carina (first bifurcation), and the device exerts a slight insufflating effect, a precisely measured dose of dry powder can penetrate deep into the lung.
Specifications
- For intratracheal delivery of dry powders
- PEEK™ (polyetheretherketone) construction
- Silcone rubber valves
- 3.5 g empty weight, with standard (rat) delivery tube
- 1 - 5 mg nominal sample capacity
- Maximum sample capacity can be increased to >100 mg with special sample chamber extension
- Includes 3cc plastic syringe for air supply
- Special hand-held air pump, 0 - 5 ml capacity, available (Model AP-1)
Dimensional Information
| Key: |
Length "A": Functional length, from bend to tip
Angle "B": Angle of bend
Length "C": Length from hub to bend
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Note: |
Optimal pulmonary distributions are obtained when the Insufflator tip is located close to, but not touching the carina (first bifurcation). |
*stainless steel tube, per ora insertion, without endotracheal tube
Custom Sizes
Delivery tubes for the DP-4 Insufflator can be made in any length or geometry (straight, various angle "B" dimensions). Include desired dimensions with your purchase order, or contact us for more information.
If an endotracheal tube is used, the length "A" should be increased accordingly, so that the tip of the delivery tube is located close to, but not touching, the carina (first bifurcation).
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