Written and maintained by CASRAI Editorial Board
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This page describes products and general use; it is not medical advice.
A vented needle is a needle with a small channel along its outside surface that lets air move in or out of a vial while fluid is drawn or added. It has no filter. Pharmacy and clinic staff, buyers and students meet it as the sterile, single-use needle used to transfer medication between containers.
What is a vented needle?
A vented needle is a medication transfer needle with an integral vent. The Global Medical Device Nomenclature (GMDN) term is “Medication transfer needle, vented” (GMDN code 16628). The GMDN definition, as published in the FDA’s AccessGUDID database, describes a slender, rigid, sharp or blunt tube intended to be attached to a syringe and typically used in the pharmacy to aspirate and transfer fluid medication from a vial or ampule to another container for medication preparation or other purposes. It adds that the needle includes a thin channel cut along its outer surface forming an integral vent that relieves any back pressure in the vial during the transfer of medication, to help minimize risk of contamination, and that it does not include a filter. It is a single-use device.
Who uses it: pharmacy and clinical staff who prepare medication from vials and ampules, and the buyers and students who learn to tell transfer needles apart from standard injection needles.
How the vent works
When fluid is drawn out of a sealed vial, pressure inside the vial falls; when fluid is pushed in, pressure rises. A vented needle addresses this with a channel cut along the outer surface of the needle itself, so no separate air-inlet needle is needed. In the GMDN wording, the channel forms an integral vent that relieves back pressure during the transfer.
The key design fact is that the vent is only a channel. The GMDN definition states that the product does not include a filter, so nothing in the needle itself screens the air that moves through the vent.
Vented needle vs filtered vented vial access device
The two products are easy to confuse because both are used to vent a vial. They are built differently, as the table shows.
| Feature | Vented needle | Filtered vented vial access device |
|---|---|---|
| Example source | B. Braun Medical “Vented Needle” record in AccessGUDID (GMDN 16628) | BD SmartSite chemo-safety universal vented vial access device (MV0400) |
| Venting mechanism | Channel along the outer surface of the needle | 0.2 micron hydrophobic air-venting filter |
| Filter | None, per the GMDN definition | Yes, 0.2 micron hydrophobic |
| Needle | Yes, sharp or blunt tube attached to a syringe | Needle-free valve (SmartSite) for needleless access |
| Access pattern | Single-use transfer from a vial or ampule to another container | The manufacturer describes access to multiple-use vials, and a closed system when used with its Texium closed male luer |
The comparison matters when reading a product listing or a purchasing specification: “vented” on its own does not say whether the vent is a bare channel or a filtered path.
Regulatory identity
The AccessGUDID record for the B. Braun product lists FDA product code GAA, “Needle, Aspiration and Injection, Disposable”. The record also marks the device as exempt from premarket submission. It states that the device is single-use and sterile as packaged, with no sterilization required before use.
Sizes and specifications
The AccessGUDID record for the B. Braun vented needle lists “No Device Sizes”, so no gauge or length is stated here. Sizes are given on the manufacturer’s product labeling and catalog entry for each item. For how gauge numbers work, see how needle gauge numbers work.
Safe use and handling basics
- The device is labeled single-use, so it is not meant to be reprocessed or reused.
- It is supplied sterile in its package and does not need sterilization before use, according to the AccessGUDID record.
- Because it has no filter, do not treat it as a substitute for a filtered vial access device; the two are different products.
- Follow the manufacturer’s instructions for use for each product, and your organization’s policies on needle handling and sharps disposal. For sterile preparation rules in pharmacies, see the USP 797 sterile compounding guide.
Common mistakes
- Assuming “vented” means “filtered.” The GMDN definition for a vented needle says it has no filter; a filtered device is a different product.
- Treating it as a standard injection needle. It is classed as a medication transfer needle for moving medication between containers. For the general injection needle, see what a hypodermic needle is.
- Expecting reuse. The device is single-use.
FAQ
What is a vented needle?
A vented needle is a sterile, single-use medication transfer needle with a thin channel along its outer surface that relieves back pressure in a vial during transfer. It attaches to a syringe and has no filter. See injection needles for the wider needle category.
Does a vented needle have a filter?
No. The GMDN definition in AccessGUDID states that a vented needle does not include a filter. A filtered alternative is a separate product type, such as the BD SmartSite vented vial access device, which has a 0.2 micron hydrophobic air-venting filter.
Is a vented needle single-use?
Yes. The GMDN definition says it is a single-use device, and the AccessGUDID record lists it as packaged sterile and not requiring sterilization before use.
How is a vented needle different from a vented vial access device?
A vented needle is a sharp or blunt tube attached to a syringe with a vent channel along its outer surface. The BD device in the comparison above is needle-free and vents through a filter. See the table in the section above.
Related reading
Sources
- NLM AccessGUDID (FDA Global Unique Device Identification Database), B. Braun Medical Inc. “Vented Needle”, DI 04022495769886: https://accessgudid.nlm.nih.gov/devices/04022495769886. Checked 2026-10-29.
- BD, SmartSite chemo-safety universal vented vial access device (MV0400) product page: https://www.bd.com/en-ca/products-and-solutions/products/product-page.MV0400. Checked 2026-10-29.
