Core Clinical Functions Of Pencil Point Disposable Anesthesia Spinal Needle In Lumbar Puncture Diagnosis

https://www.unisis.co.jp/en/product/product-list/u_10100002/

The Pencil Point Disposable Anesthesia Spinal Needle is a professional atraumatic puncture device specially designed for neuraxial anesthesia and diagnostic lumbar puncture. Different from traditional cutting-type spinal needles, its unique blunt pencil-point tip abandons the cutting structure and adopts a tissue-separating penetration principle, which greatly reduces intraoperative trauma and postoperative complications. In modern neurological diagnosis and outpatient examination systems, this disposable spinal needle has become a key tool for screening intracranial infections, realizing accurate, low-cost and safe minimally invasive diagnosis.

In daily clinical diagnosis, many patients present with persistent fever and recurrent headache, while routine blood routine test results show normal indicators. In this case, peripheral blood examination cannot accurately rule out intracranial bacterial meningitis and central nervous system infections. Doctors will clinically arrange lumbar puncture surgery to obtain cerebrospinal fluid samples for professional laboratory testing. The examination results can directly and clearly determine whether the patient has intracranial infection, providing the gold-standard basis for subsequent targeted treatment plans. As the core sampling instrument for this operation, the Pencil Point Disposable Anesthesia Spinal Needle determines the safety and accuracy of the entire diagnostic process.

The product adopts high-quality medical stainless steel as the core material, with stable physical properties and excellent biocompatibility. It can smoothly penetrate the skin, subcutaneous tissue, supraspinous ligament, interspinous ligament and ligamentum flavum layer by layer, and accurately reach the subarachnoid space to extract standard cerebrospinal fluid samples. The biggest advantage of the pencil-point design is atraumatic penetration. Unlike sharp beveled needles that cut dural fibers and cause irreversible wounds, the blunt tip gently pushes apart ligament and dural tissues. The separated tissue structure can self-heal quickly after surgery, effectively avoiding common postoperative problems such as cerebrospinal fluid leakage and post-dural puncture headache.

This full-series spinal needle covers complete medical gauges from 16G to 27G, with a standard 90mm needle length and support for customized length processing. Each specification corresponds to an exclusive international standard color code, including white for 16G, light purple for 17G, pink for 18G, light grey for 19G, yellow for 20G, green for 21G, black for 22G, dark blue for 23G, purple for 24G, orange for 25G, brown for 26G and grey for 27G. The standardized color coding system helps medical staff quickly identify specifications in high-intensity clinical scenarios, effectively avoiding misoperation and improving diagnostic efficiency.

In terms of medical economy and outpatient adaptability, lumbar puncture examination supported by pencil-point spinal needles has extremely high cost performance. The total examination cost is less than 200 yuan, realizing perfect diagnostic accuracy at a low medical cost. More importantly, this minimally invasive puncture method is not limited to inpatient examination; it can be safely carried out in outpatient departments. After the operation, patients only need to lie flat for 4 to 6 hours for observation and rest, and they can recover and leave the hospital normally without long-term hospitalization, which greatly saves medical resources and patients' time costs.

As a multi-functional disposable puncture instrument integrating anesthesia and diagnosis, the Pencil Point Disposable Anesthesia Spinal Needle perfectly adapts to the dual clinical needs of neuraxial anesthesia and intracranial infection screening. Its atraumatic design, complete specifications, low-cost examination advantages and convenient outpatient operation mode make it an indispensable basic medical device in modern neurological minimally invasive diagnosis and treatment.