In the medical field, especially in spinal puncture, a delicate and high-risk operation, the dimensional accuracy of disposable spinal needles is of great importance and shows significant advantages in many aspects.
First of all, disposable spinal needles have extremely strict precision control on the outer diameter. The accuracy of its outer diameter can usually reach the micron level, which enables it to be highly compatible with the intervertebral space of the human spine. During the puncture process, an outer diameter that is too thick may cause unnecessary damage to the surrounding muscles, ligaments and other tissues, causing complications such as postoperative pain and bleeding; while an outer diameter that is too thin may cause the puncture needle to be insufficient in strength, prone to bending or breaking, affecting the smooth progress of the puncture. For example, when performing a lumbar puncture to extract cerebrospinal fluid, a suitable and accurate outer diameter can accurately reach the target position with minimal damage to the tissue, reducing the patient's pain and reducing the risk of infection.
Secondly, the accuracy of the inner diameter size is also crucial. An accurate inner diameter can ensure accurate control of the flow rate of the puncture needle during cerebrospinal fluid extraction or drug injection. If the inner diameter is too large, the cerebrospinal fluid may be extracted too quickly, causing a sharp change in intracranial pressure and causing damage to the patient's nervous system; if the inner diameter is too small, it will make drug injection difficult, prolong the operation time, increase the patient's discomfort and surgical risks. With its precise inner diameter design, the disposable spinal needle can easily complete the task, whether it is in diagnostic puncture to obtain an appropriate amount of cerebrospinal fluid for testing, or in therapeutic puncture to accurately inject a prescribed dose of drugs, providing a solid guarantee for the effectiveness and safety of medical operations.
Furthermore, the scale markings on the needle body are also a reflection of its dimensional accuracy advantage. Clear and precise scales can help medical staff accurately grasp the depth of needle insertion. During spinal puncture, precise control of the depth of needle insertion is the key to avoiding damage to important structures such as the spinal cord. Medical staff can refer to the scale on the puncture needle based on the patient's physical characteristics and puncture site, and accurately push the needle to the predetermined depth with minimal error. Compared with the traditional puncture needle with inaccurate scale, this greatly improves the success rate and safety of puncture, and reduces the probability of serious medical accidents caused by improper needle insertion depth.
In summary, the advantages of disposable spinal needle in dimensional accuracy, whether it is the adaptation of the outer diameter to human tissue, the precise control of the inner diameter on the liquid flow, or the accurate guidance of the scale mark on the needle insertion depth, make it an indispensable key medical device in spinal puncture surgery, which effectively guarantees the smooth progress of the medical process and the life and health of patients.
