Spinal needle and the intraspinal anaesthetic puncture device compromising the same

Abstract

The invention relates to a medical appliance, in particular relating to a puncture needle for lumbar anesthesia and the intraspinal anesthesia puncture device with the puncture needle for lumbar anesthesia. The puncture needle for lumbar anesthesia comprises a needle and a stylet, wherein, the needle comprises a first needle and a first neilsbed which is permanently connected with the first needle; the infusion hole of the needle is arranged on the sidewall of the first needlepoint; as the opening of the infusion hole is more closely to the front end of the first needlepoint, the leakage of liquid medicine out of the subarachnoid cavity is easy to be prevented when the lumbar anesthesia is injected. The intraspinal anesthesia puncture device of the invention comprises an extradural puncture needle and a puncture needle for lumbar anesthesia, wherein, at the matching place of the first neilsbed and the third neilsbed of the puncture needle for lumbar anesthesia a screw thread is arranged With cooperation of the screw thread, the needle for lumbar anesthesia is easy to be fixed and the length of the needle for lumbar anesthesia exceeding the epidural can be accurately adjusted, thus the occurrence of a phenomenon that the needle for lumbar anesthesia can not reach the subarachnoid cavity due to a short length of the needle for lumbar anesthesia is decreased.

Description

technical field [0001] The invention relates to a medical appliance, in particular to a puncture needle for spinal anesthesia and an anesthesia puncture device for spinal canal containing the puncture needle for spinal anesthesia. Background technique [0002] The spine is the backbone of the human body, and it is also the main channel and protective cover for the transmission of nerve information. The spine, as the central part of the human body, is structurally located in the center of the body, coordinating and controlling the activities of the head and limbs. Nerves from each pair of intervertebral foramina control sensory and motor functions throughout the body. When the human body is sick and needs to perform surgery or perform diagnostic inspection operations, in order to reduce the pain of the patient, ensure the safety of the patient, and create good surgical conditions, it is necessary to anesthetize the patient. Intraspinal anesthesia is an important way of anes...

AI Technical Summary

Problems solved by technology

During the puncture process, because it is difficult to control the exact position of the spinal anesthesia puncture needle in the body, the needle point of the spinal anesthesia puncture needle often passes through the arachnoid, and a part of the injection hole is outside the arachnoid, or when injecting spinal anesthesia During the drug process, the injection hole of the spinal anesthesia needle prolapses or partially protru

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