Discography is a procedure where a specific amount of contrast medium is injected into the intervertebral disc nucleus under the guidance of X-ray fluoroscopy, to observe the morphology of the nucleus pulposus, and determine the pathological characteristics of the disc. It can be performed via a posterior median approach or a lateral approach. The posterior median approach is suitable for L3-S1 segments. The lateral approach is suitable for L1-L3. For L5S1 discography, due to the obstruction by the ilium, the posterior median approach is preferred over the difficult lateral approach. The disposable spinal needle with a 22G puncture needle solves this problem.

What is a disposable spinal needle?

The disposable spinal needle is a product approved by the National Medical Products Administration as a Class III medical device, suitable for discography, and can also be used for lumbar puncture, nerve block, medication injection, and nutrition. During usage, it demonstrates advantages in safety, speed, and precision.

Advantages of disposable spinal needle in discography

High Safety

The disposable spinal needle is a single-use sterile instrument, effectively preventing the transmission of diseases between the medical staff and patients, thus reducing the risk of cross-infection. During the operation, a blunt stylet is used to puncture, reducing damage to critical nerves and blood vessels. The hollow fine needle can be prebent externally according to the different morphologies of the affected disc and, through the outer sheath, reach the target point, avoiding repeated punctures and subsequent harm to the patient. This minimally invasive approach allows for relatively fast postoperative recovery, reducing the suffering caused during treatment.

Strong Operability

This product has a relatively simple structure and straightforward operational steps, making it easy to learn. Four different needle designs meet the needs of various stages of the procedure. At the initial puncture positioning step, the sheath is clearly marked to precisely control the puncture depth; the pointed beveled puncture needle quickly penetrates the skin, and during deeper punctures, the blunt needle replaces it, effectively reducing or avoiding damage to the nerve roots. Finally, the hollow needle is used to inject contrast medium, nutrients, and other medications.

Precision and Effectiveness

Single-use spinal puncture needle sheaths are clearly marked to precisely control the puncture depth. The head of the hollow puncture needle can be shaped, making it easier to conduct high-iliac crest L4-L5 and L5-S1 discography and adjust the direction of injection, facilitating target-point accuracy. Through discography, detailed information on disc lesions can be quickly diagnosed, providing critical clinical insights and enabling targeted surgical management.

18G External Sheath

The internal and external walls of the sheath needle are smooth, marked with gradations for precise operation, enhancing puncture safety.

20G Dilation Needle

After local anesthesia, the 18G sheath combined with the 20G dilation needle is used to puncture the skin, passing through the lumbar fascia with a bevel-tipped needle.

20G Blunt Puncture Needle

Using a blunt puncture needle greatly reduces damage to nerves, blood vessels, and other critical tissues, avoiding rare but fatal complications like retroperitoneal hematoma.

22G Hollow Puncture Needle

The 22G moldable puncture needle can be shaped according to the disc morphology, adjusting the puncture direction, making it easier to reach the target site.