Puncture needle for cerebrospinal fluid replacement

Abstract

The invention belongs to the technical field of medical apparatuses and equipment, and specifically relates to a puncture needle for cerebrospinal fluid replacement. The puncture needle is that a puncture needle head is fixedly connected with a puncture needle handle through a needle seat; second scales are printed on the outer sidewall of the puncture needle head; a medicine injection opening is fixed in one end of the puncture needle handle, close to the needle seat and is used in match with a heparin cap; a lifting pulling valve is fixedly arranged at the other end of the puncture needle handle; first scales are printed on the upper end of the lifting pulling valve; a baffle is fixedly arranged at the lower end of the lifting pulling valve; a liquid outlet is fixedly formed in the puncture needle handle, corresponding to the baffle; the heparin cap can be repeatedly punctured and replaced to use; the liquid outlet is connected with a device for collecting cerebrospinal fluid and a pressure measuring device for measuring cerebrospinal fluid pressure. The whole puncture needle is simple in structure, convenient to use and operate, and safe and sterile in operation environment, can effectively avoid intracranial infection, cerebral angiospasm, hydrocephalus, temporary paraplegia and cerebral hernia, and is small in manufacturing cost, and easy to achieve mass popularization and application.

Description

Technical field: [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a puncture needle used for cerebrospinal fluid replacement to replace the existing common puncture needle. Background technique: [0002] The principle of cerebrospinal fluid replacement is to replace bloody cerebrospinal fluid or inflammatory cerebrospinal fluid in the spinal canal by injecting an equal amount of sterile normal saline into the subarachnoid space, and finally inject dexamethasone into the spinal canal. The injected normal saline can reduce intracranial Keep the pressure relatively stable, dilute the cerebrospinal fluid, speed up the clearance of subarachnoid hemorrhage, relieve the irritation of meninges and nerve roots, reduce the occurrence of cerebral vasospasm and hydrocephalus, and inject dexamethasone to reduce exudation , prevent arachnoid adhesions, reduce cerebral edema. At present, the lumbar puncture needle used clinically for c...

AI Technical Summary

Problems solved by technology

At present, the lumbar puncture needle used clinically for cerebrospinal fluid replacement needs to be pulled out repeatedly during the process of sampling and injecting medicine, resulting in a working environment that is not completely closed, resulting in leakage of cerebrospinal fluid, increasing the risk of infection for patients, and pulling out the needle core at the same time When the external pressure suddenly decreases, the cerebrospinal fluid flows out rapidly, causing the pressure in the patient's spinal canal to drop, which is prone to intracranial infection, cerebral vasospasm, hydrocephalus, temporary paraplegia and even cerebral herniation. During the cerebrospinal fluid replacement operation, you need to hold the test tube containing cerebrospinal fluid with your hands all the time. The arm is prone to soreness and discomfort, and the cerebrospinal fluid may leak

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