Product description

1. Uses of Spinal Needles

1. Spinal Anesthesia

   • Injection of local anesthetic into cerebrospinal fluid (CSF)

   • Commonly used for:

     • Lower limb surgeries

     • Lower abdominal surgeries

     • Obstetric procedures (e.g., cesarean section)

2. Diagnostic Lumbar Puncture

   • Collection of CSF to diagnose:

     • Meningitis

     • Subarachnoid hemorrhage

     • Multiple sclerosis

     • Other neurological disorders

3. Intrathecal Drug Administration

   • Delivery of medications directly into CSF, such as:

     • Chemotherapy

     • Antibiotics

     • Opioids for pain control

4. Measurement of CSF Pressure

   • Helps assess conditions like intracranial hypertension

2. Description of Spinal Needles

Structure

• Length: Usually 8–9 cm (longer for obese patients)

• Gauge: Common sizes are 22G, 23G, 25G, 26G, and 27G

  • Higher gauge = thinner needle

• Material: Stainless steel

• Components:

  • Hub: Connects to syringe

  • Shaft: Long, thin, hollow tube

  • Stylet: Solid inner wire that prevents tissue coring

  • Tip: Specially designed to minimize trauma

Types of Tips

1. Cutting Tip

   • Example: Quincke needle

   • Sharp bevel that cuts through tissue

   • Higher risk of post-dural puncture headache

2. Pencil-Point (Non-cutting) Tip

   • Examples: Whitacre, Sprotte

   • Separates rather than cuts dural fibers

   • Lower risk of headache (preferred)

3. Advantages

• Precise drug delivery

• Rapid onset of anesthesia

• Smaller doses required

• Reduced systemic side effects