An external drainage device for a cerebral cistern effusion

By designing a sophisticated drainage device equipped with a puncture needle, the problem of the inability to puncture existing drainage tubes was solved, enabling effective drainage of cerebrospinal fluid during open bone window surgery and reducing surgical risks.

CN224370429UActive Publication Date: 2026-06-19SHENZHEN CHANGER MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN CHANGER MEDICAL TECH CO LTD
Filing Date
2025-01-26
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

Existing drainage tubes are too large and lack puncture capability, making them ineffective at draining cerebrospinal fluid, especially during open bone window surgery, leading to potential fluid accumulation risks.

⚗Method used

A thinner drainage device has been designed, equipped with a puncture needle, for cistern puncture via an open path. It includes a drainage container, drainage tube, and ventricular drainage tube, connected by a Botaruhl connector. The material can be PVC or silicone, and it is suitable for open bone window surgery.

🎯Benefits of technology

It achieves delicate drainage, allowing direct puncture through an open bone window to effectively drain cerebrospinal fluid and reduce surgical risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses an external drainage device for cistern effusion, including a drainage container and a drainage tube and a ventricular drainage tube connected thereto in sequence; a three-way valve is provided on the drainage tube; the front end of the ventricular drainage tube is provided with a puncture needle adapted to it, which is thinner than existing drainage tubes, and the puncture needle can be placed in front to perform cistern puncture through open paths, such as open bone windows, to drain cistern effusion. Drainage can be performed directly through channels established through the mastoid process, CAP approach, retrosigmoid sinus, and petrous region.
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