Cerebrospinal fluid puncturing drainer

A technology of cerebrospinal fluid and drainage device, which is applied in the direction of wound drainage device, puncture needle, suction device, etc. It can solve the problems of not being able to observe the situation of subarachnoid hemorrhage and pressure changes at any time, poor drainage effect, and exacerbation of the disease.

Inactive Publication Date: 2005-09-28
何明利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 co

Method used

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  • Cerebrospinal fluid puncturing drainer
  • Cerebrospinal fluid puncturing drainer
  • Cerebrospinal fluid puncturing drainer

Examples

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Effect test

Embodiment 1

[0023] Example 1, this embodiment is exclusively for one-time use of lumbar pool puncture and external drainage or lumbar pool catheterization for administration.

[0024] structure and composition

[0025] The disposable sterilized lumbar puncture drainage device is composed of lumbar puncture needle (needle sheath and needle core), guide wire 3, drainage tube 4, catheter 9 and cerebrospinal fluid drainage bag 7 parts. All parts are sterilized and sealed in sterile plastic bags.

[0026] (1) lumbar puncture needle,

[0027] A: Needle sheath 1: Made of stainless steel, the needle tip is beveled, which is conducive to piercing into the lumbar pool. The total length of the needle sheath is 105mm.

[0028] Base: outer diameter 4mm, inner diameter 3mm, length 5mm, cylindrical shape, funnel-shaped distal end, continuous with the needle stem.

[0029] Needle dry: cylindrical, 100mm long, 1.22mm outer diameter, 1.06mm inner diameter (No. 18 puncture needle), the inner cavity is c...

Embodiment 2

[0051] Embodiment 2, this embodiment is exclusively for one-time use of external drainage of ventricle puncture or catheterization of ventricle.

[0052] Disposable sterilized ventricular puncture drainage device is composed of 5 parts: ventricular puncture needle (needle sheath and needle core), guide wire, drainage tube, connecting tube and cerebrospinal fluid drainage bag. All parts are sterilized and sealed in sterile plastic bags.

[0053] (1) Ventricular puncture needle,

[0054] A: The outer sheath of the puncture needle; it is made of silicone, and the needle tip is round and blunt, so that it can cling to the needle core and reduce tissue damage. The lumen of the needle handle is smooth and funnel-shaped, which facilitates the insertion of the guide wire.

[0055] Substrate: 10mm outer diameter, 4mm inner diameter, 1mm thick, ring-shaped, the inner edge is connected with the needle handle wall.

[0056] Needle handle: conical shape, the outer diameter of the big en...

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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...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61M1/00A61M25/06A61M27/00
CPCA61B17/3415A61M27/006
Inventor 何明利
Owner 何明利
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