Chemotherapy treatment often requires frequent access to the bloodstream, and for many patients, this is made possible through the use of a chemotherapy port

(chemo port). To access the port safely and effectively, a specialized medical device known as the Huber needle is used. This article explores what needle is used for

chemotherapy ports, the correct Huber needle size, the benefits of using this needle, and the steps of port access.

What Needle Is Used for Chemotherapy Ports?

When patients receive a chemotherapy port, it is implanted beneath the skin, usually in the chest area. The port connects to a catheter that leads directly to a large vein,

allowing medication to be delivered efficiently without repeated peripheral IV sticks.

The needle specifically designed for accessing a chemotherapy port is the Huber needle. Unlike a conventional hypodermic needle, the Huber needle has a non-coring,

angled tip that prevents damage to the port's silicone septum. This non-coring feature ensures that the septum can withstand hundreds of punctures throughout the

course of treatment.

   Why not use a regular needle?

   Regular hypodermic needles can core out pieces of silicone when puncturing the septum, leading to port damage, leakage, or increased infection risk. That is why only

Huber needles are recommended for chemo port access.

What Size Huber Needle to Access Port?

Choosing the right Huber needle size is essential for effective port access and patient comfort. The correct size depends on the patient's anatomy, the depth of the port,

and the clinical procedure.

Common Huber needle gauges:

19G to 22G are the most frequently used sizes.

19G: Larger inner diameter, often used for rapid infusion or blood transfusion.

20G: Standard for chemotherapy infusions.

22G: Smaller size, useful for patients with delicate veins or when slower infusion is acceptable.

Length of the Huber needle:

Typically ranges from 0.5 inch to 1.5 inches.

Shorter lengths are used for patients with less subcutaneous tissue, while longer lengths are required for deeper ports.

How to select the right size:

   Assess the depth of the port under the skin.

   Choose a gauge that balances infusion needs and patient comfort.

   Ensure the needle reaches the septum fully without causing extra pressure on the skin.

Healthcare providers typically assess port depth by palpating the site, then choose the appropriate Huber needle size for secure access.

Benefits of Using Huber Needle for Chemo Port

The Huber needle plays a vital role in ensuring safe, comfortable, and effective chemotherapy treatment. Here are the key benefits:

1. Non-Coring Tip Design

   Prevents silicone particles from being cored out during access.

   Extends the life of the chemotherapy port.

2. Reduced Risk of Infection

   The needle is designed to provide a tight seal when properly placed, reducing exposure to bacteria.

   Many Huber needles come with safety features to prevent accidental needle sticks.

3. Patient Comfort

   Compared to repeated IV insertions, port access with a Huber needle is less painful.

   Patients undergo fewer needle sticks overall, improving quality of life during long-term treatment.

4. Reliable Delivery of Medication

    Ensures chemotherapy drugs are delivered directly into a large central vein for fast dilution.

    Reduces the risk of vein irritation or extravasation compared to peripheral IV infusion.

5. Versatility in Treatment

    Suitable for chemotherapy, blood transfusion, IV fluids, and laboratory blood draws.

    Can handle both short infusions and long-term continuous therapy.

6. Safety for Healthcare Workers

    Many modern Huber needles include safety wings and protective sheaths that minimize the risk of needle-stick injuries.

How to Access a Chemotherapy Port with a Huber Needle

Accessing a chemotherapy port requires sterile technique and careful handling. Below is a general overview of the process (to be performed only by trained medical

professionals).

1. Gather Supplies

    Sterile gloves

    Antiseptic solution (chlorhexidine or alcohol)

    Sterile drape and dressing

    Huber needle (appropriate gauge and length)

    Saline flush and heparin (if required)

    Syringes and infusion set

2. Prepare the Site

    Wash hands and wear sterile gloves.

    Palpate the port to locate the septum.

    Clean the skin over the port in a circular motion with antiseptic solution.

    Allow the site to dry completely.

3. Insert the Huber Needle

    Hold the port steady with non-dominant hand.

    Insert the Huber needle at a 90-degree angle through the skin into the septum until resistance is met.

    Ensure the needle is fully seated within the port chamber.

4. Check for Blood Return

    Attach a syringe and gently aspirate.

    Presence of blood return confirms correct placement in the vein.

5. Flush and Secure

    Flush with saline to clear the line.

    Apply a sterile dressing over the access site.

    Secure the Huber needle with tape or stabilization device.

6. Begin Infusion

    Connect the chemotherapy tubing or IV set.

    Monitor for patient comfort and any signs of leakage or complications.

7. De-accessing the Port

    When infusion is complete, flush with saline (and heparin if protocol requires).

    Remove the Huber needle carefully at a 90-degree angle.

    Apply sterile gauze over the site.

Conclusion

The Huber needle is the essential needle for chemo ports, designed to provide safe, reliable, and comfortable access for patients undergoing chemotherapy. Selecting the

correct Huber needle size—both gauge and length—is crucial for effective treatment and patient well-being.

By using the right technique, this specialized medical device ensures reduced infection risk, extended port life, and improved comfort for cancer patients. Understanding

the role of the Huber needle for chemotherapy ports helps both patients and caregivers feel more confident during the treatment journey.