Pen point type double-side-hole pure spinal anaesthesia puncture needle

Abstract

The invention relates to a pen point type double-side-hole pure spinal anaesthesia puncture needle. The puncture needle is provided with a needle handle and a needle body. The top end of the needle body is a needle point, and two symmetrical needle holes are formed in the side wall of the top point; two symmetrical needle handle side wings are arranged on the side wall of the needle handle, the length direction of the needle handle side wings is perpendicular to the length direction of the needle body, and anti-slipping protrusions are arranged at the outer ends of the needle handle side wings and face the needle body; anti-slipping threads are arranged on the external surface of the needle handle and the external surfaces of the needle handle side wings respectively; the needle point is conical. The pen point type double-side-hole pure spinal anaesthesia puncture needle has the advantages that it can be guaranteed that cerebrospinal fluid is drawn back smoothly, and whether the needle point reaches the subarachnoid space can be judged through visually observing drawback of the cerebrospinal fluid; the force-applying direction of puncturing and the needle body are kept in the same straight line, in this way, puncturing difficulty is lowered, and the success rate of puncturing is increased; damage to the ligament and spinal dura mater is small, and the probability of pain in back and loin, headache and other complications can be effectively lowered.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a pen-tip type double hole simple spinal anesthesia puncture needle. Background technique [0002] Spinal anesthesia is one of the modern clinical anesthesia techniques. Its principle is to use a puncture needle to reach the subarachnoid space through the skin, subcutaneous tissue, supraspinous ligament, interspinous ligament, ligamentum flavum and spinal dura mater from the spinous process space of the back of the human body. Anesthesia drugs are injected to anesthetize the spinal cord through the diffusion of drugs in the cerebrospinal fluid in the subarachnoid space to play an anesthesia effect. Because spinal anesthesia can directly anesthetize the spinal cord, it has a quick onset and perfect effect. It is popular as a regional block, especially for lower limbs, lower abdomen, old age or lung diseases, which are not suitable for general anesthesia. patients have a g...

AI Technical Summary

Problems solved by technology

[0005] However, in the process of spinal anesthesia, in addition to the above-mentioned complications, there may be other problems that affect the overall effect of spinal anesthesia, which requires careful observation, diligent thinking and summary in long-term clinical practice by those skilled in the art

Images