A detachable subdural space introducer

Abstract

The invention discloses a detachable subdural space guider which is used for inserting a drainage tube into a subdural space. The detachable subdural space guider is provided with a bullet-shaped rotary body. The bullet-shaped rotary body comprises a core rod and a guide sleeve, wherein the guide sleeve is formed by a first semicircular shell and a second semicircular shell in a mutually engaging mode. The core rod is sleeved with the guide sleeve in the axial direction. The far end of the first semicircular shell, the far end of the core rod and the far end of the second semicircular shell jointly form the bullet head portion of the bullet-shaped rotary body. Through the detachable subdural space guider, when the drainage tube touches the bevel inner sidewall of the far end of the first semicircular shell, the soft drainage tube automatically turns, enters the subdural space accurately and sucks and drains hydrops or hemorrhage in the subdural space; accordingly, the detachable subdural space guider facilitates drainage and is convenient to fix and capable of achieving efficient drainage treatment and avoiding brain tissue damage.

Description

Technical field [0001] The invention relates to medical equipment, in particular to a detachable subdural space introducer. Background technique [0002] Subdural effusion is a common and frequently-occurring disease in clinic. Surgical treatment is mainly based on skull drilling and drainage. However, because the subdural space is very shallow, the depth of the catheter should not be too deep, otherwise it will easily damage the brain tissue, which may cause postoperative complications in severe cases; or because the catheter is too shallow, the postoperative drainage tube is easy to fall off. At the same time, because the current intracranial drainage devices used in skull drilling and catheter drainage are not perfect enough, the performance is as follows: First, the lack of directional devices allows doctors to completely rely on their own operating experience in the process of catheter placement into the hematoma cavity It is difficult to ensure that the catheter can be ac...

AI Technical Summary

Problems solved by technology

However, because the subdural space is very shallow, the depth of the catheter cannot be too deep, otherwise it is easy to damage the brain tissue, which may cause postoperative complications in severe cases; or because the catheter is too shallow, the drainage tube is easy to fall off

At the same time, because the current intracranial drainage devices used in the drilling and drainage of the skull are not perfect, the performances are as follows: First, the lack of directional devices makes the doctor rely entirely on his own operating experience in the process of placing the catheter in the hematoma cavity. , it is difficult to ensure that the catheter can be accurately implanted in the subdural space, and it is easy to insert the drainage tube into the brain parenchyma, and the drainage effect cannot be achieved; second, there is a lack of keyhole hemostatic device, and the scalp bleeding during the operation affects the operation; third, the lack of Removable guide keyhole device

Because the existing drainage tube and the drainage bag are often designed as an integrated structure, once the drainage tube is inserted into the subdural space, the guiding device of the intracranial drainage device is set on the drainage tube and cannot be removed, which seriously affects the operation. implement

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