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This page describes products and general use; it is not medical advice.
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The drip chamber is the clear, hollow section of an IV administration set where fluid falls in drops, so that staff can see it moving. This guide covers what the part is, how it is regulated, and what its labelling means on real FDA-registered sets, so clinic staff, buyers and students can read a set description and know what the chamber is.
What is an IV drip chamber?
An IV drip chamber is the transparent chamber in an intravenous administration set, in which the fluid forms visible drops. A patent describing the part says it lets medical personnel “visually inspect the drip, i.e., flow rate” of the fluid, and that it provides a pocket where air in the system can collect (Google Patents, US6099512, checked 2026-10-30).
In US regulation the chamber is a named component, not a separate device. 21 CFR 880.5440 defines an intravascular administration set as a device used to administer fluids from a container to a patient’s vascular system, and lists a drip chamber among the parts the device may include, alongside tubing, a flow regulator, an infusion line filter, a stopcock, connectors, an injection-site side tube and a spike. The same section classifies the set as Class II (special controls) (Cornell LII, checked 2026-10-30).
How it is built
The patent places the chamber between the intravenous fluid bag and the needle, and describes droplets that collect in a pool at the bottom of the chamber housing. It also explains that priming is needed to fill the conduits with solution and purge air from the system. Exact materials and wall dimensions differ by manufacturer and are given in each product’s instructions for use.
On the FDA’s device records, chamber variants are described in the product description, for example “spike drip chamber”, “in-line drip chamber”, “integrated drip chamber”, “ball valve drip chamber” (BD burette sets) and “filter in drip chamber”.
Types and variants on real device records
The table below uses entries in the FDA’s Global Unique Device Identification Database (GUDID), queried through the openFDA UDI API on 2026-10-30. The description column is the company’s own wording; “DI” is the device identifier. Each record lists the device as single use.
| Variant | Example GUDID record (company, DI) | What the record says |
|---|---|---|
| Fixed 20 drops/mL spike chamber | Vygon, 38498840006758 | 84 in set with 20 drops/mL spike drip chamber and needleless Y-site |
| Fixed 10 drops/mL universal-spike chamber | Hartman Medical Group, 00850048235175 | 100 in (254 cm) primary set, universal spike drip chamber (10 drops/mL), pump key |
| Fixed 15 drops/mL vented-spike chamber | Kentron Healthcare, 10810003750041 | 85 in set, 15 drops/mL, vented spike, drip chamber, flow regulator |
| Selectable 10, 15 or 60 drops/mL chamber | AMSINO, 40704411017739 | Non-vented I.V. set with selectable drip chamber; labelled gravity use only; non-pyrogenic fluid pathway |
| Filter inside the chamber | Hartman Medical Group, 00850048235236 | 92 in set, 10 drops/mL, universal vented spike, 15 µm filter drip chamber, roller clamp |
| Non-vented chamber with filter | ICU Medical, 10887709093475 | 108 in (274 cm), approx. 18.7 mL, 20 drop admin set with non-vented drip chamber, 15 micron filter, luer lock |
| Integrated needle-free connector at the chamber | ICU Medical, 10887709053905 | 92 in (234 cm), approx. 11.4 mL, 20 drop set with integrated Clave drip chamber |
Related product codes under 21 CFR 880.5440 in the FDA classification database include FPA (set, administration, intravascular), FPB (filter, infusion line), FPK (tubing, fluid delivery) and PWQ (buret administration intravenous kit), all Class 2 (openFDA, checked 2026-10-30). A burette set is described with its own ball valve drip chamber; see buretrol for that part.
Specifications that appear on labels
| Label item | Where it appears in the GUDID records |
|---|---|
| Drops per mL (10, 15, 20 or 60) | Hartman 10; Kentron 15; Vygon 20; AMSINO selectable 10, 15 or 60 |
| Vented or non-vented | Kentron and Hartman list vented spikes; AMSINO and ICU Medical list non-vented chambers |
| Filter in the chamber | 15 µm listed by Hartman, ICU Medical and Integrated Medical Systems |
| Set length | Stated in inches, for example 23 in (58 cm) and 114 in (290 cm) |
| Fluid volume of the set | ICU Medical lists approximate volumes, for example 11.4 mL for 92 in and 18.7 mL for 108 in |
The drops-per-mL figure is the drop factor of the set. For how that number is used, see the CASRAI entries on microdrip sets and gravity tubing; this page does not repeat those explanations.
Who uses it
Hospital and clinic nursing staff and other clinicians who give IV fluids from a container, together with the supply and procurement staff who stock these sets. Sets that use a chamber are among the items described on IV supplies and infusion sets.
Reading a set description
The records show that the manufacturer’s description, rather than the words “drip chamber” alone, tells you what the set contains. Look for the drop factor, whether the spike or chamber is vented, whether a filter is inside the chamber, and whether the set is labelled for gravity use only. Fluid delivery tubing is a separate part in 21 CFR 880.5440 from the drip chamber, so a given set description may or may not name a chamber. Choosing between sets depends on the product’s instructions for use and your facility’s policies, which this page does not replace.
Safe use and handling basics
- Follow the manufacturer’s instructions for use for the exact set; the GUDID records cited here list these sets as single use.
- Use a set only as its labelling describes. For example, the AMSINO set is labelled gravity use only, while the Hartman set is described with a pump key.
- For how often sets are replaced, see IV supplies rather than a figure on this page.
Common mistakes
- Treating the drip chamber and the burette chamber as one part. BD burette sets in GUDID are described with their own “ball valve drip chamber”, separate from the spike-end chamber of a primary set.
- Assuming the chamber has the same drop factor on every set. The GUDID records cited here show fixed 10, 15 and 20 drops/mL chambers and a selectable 10, 15 or 60 chamber.
- Reading “filter” as one thing. A 15 µm filter inside the chamber is described separately from an in-line filter elsewhere on the set in the same records.
FAQ
What does a drip chamber do?
It shows the fluid falling in drops so that flow can be seen, and it gives air in the system a place to collect, according to the patent text (checked 2026-10-30).
Is a drip chamber a separate medical device?
No. In 21 CFR 880.5440 it is one of the parts an intravascular administration set may include; the set as a whole is Class II.
What do 10, 15, 20 and 60 mean on an IV set?
They are drops per mL, the drop factor stated on the set. The GUDID records cited here list 10, 15 and 20 drops/mL on fixed sets and 10, 15 or 60 on one selectable set.
Where can I find the specifications for a particular set?
In the manufacturer’s instructions for use and the device’s GUDID record at AccessGUDID, searchable by device identifier.
Related CASRAI pages: Y-site and IV bag. Supplies are listed in the infusion supplies category.
Sources
- 21 CFR 880.5440, Intravascular administration set, Cornell LII, https://www.law.cornell.edu/cfr/text/21/880.5440, checked 2026-10-30.
- openFDA device classification API, regulation number 880.5440, https://api.fda.gov/device/classification.json, checked 2026-10-30.
- openFDA device UDI API (GUDID records), https://api.fda.gov/device/udi.json, checked 2026-10-30.
- US patent 6,099,512, Google Patents, https://patents.google.com/patent/US6099512, checked 2026-10-30 (cited as patent text, not as regulation).
