Cerebrospinal fluid puncturing drainer

Abstract

The cerebrospinal fluid piercing drainer includes a piercing unit and an external draining unit. The piercing unit includes piercing needle, piercing sheath, guide wire and draining pipe. The piercing needle and the outside piercing sheath are made of stainless steel material and are used in piercing; the flexible guide wire of plastic-steel material with shape memory function is used in replacing the piercing needle; the draining pipe of soft silicone gel is used in replacing the piercing sheath and draining. During piercing, the piercing needle and the outside piercing sheath are first pierced into proper position, the piercing needle is then withdrawn and the guide wire is penetrated through the piercing sheath, and the piercing sheath is finally withdrawn and the draining pipe is fed along the guide wire to the cavity to be drained or fed to cerebral side room or even farther position under the monitoring with DSA. The draining pipe has external end connected to the draining unit.

Description

technical field [0001] The invention relates to a medical device, in particular to a puncture and drainage device for cerebrospinal fluid. Background technique [0002] Subarachnoid hemorrhage and ventricular hemorrhage are common cerebrovascular diseases. It is characterized by sudden headache, vomiting, mental abnormalities or disturbance of consciousness as the first symptoms. Blood accumulates in the ventricular system and subarachnoid space, causing ventricle casting, cerebrospinal fluid circulation obstruction, acute intracranial hypertension and even brain herniation death. Survivors often have complications such as cerebral vasospasm, normal intracranial pressure hydrocephalus, most cranial neuritis, and spinal cord arachnoiditis due to reabsorption of hemorrhage, leading to serious consequences. Therefore, the key to early treatment is to remove hemorrhage in time and clear the circulation of cerebrospinal fluid. However, the current drai...

AI Technical Summary

Problems solved by technology

However, the current drainage tube or drainage method is difficult to reach the third and fourth ventricle beyond the lateral ventricle, and the drainage effect is not good.

Lumbar puncture is used to replace the cerebrospinal fluid to achieve the purpose of removing the subarachnoid effusion. However, after the cerebrospinal fluid is extracted, it cannot be indwelling and continuously drained. Only repeated punctures can remove the continuous accumulation of blood in the subarachnoid space, which increases the pain of the patient. and injury, and sometimes aggravate the condition, increase the chance of infection, let alone observe the hemorrhage and pressure changes of the subarachnoid space at any time, and its drainage efficiency is also low

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