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Related Experiment Video

Updated: Jul 18, 2026

Endoscopic Third Ventriculostomy and Pineal Biopsy from a Single Entry Point

Endoscopic Third Ventriculostomy and Pineal Biopsy from a Single Entry Point

Published on: June 28, 2024

Ramathibodi external ventricular drainage collecting device.

Ake Hansasuta¹, Nuttacha Chiannilkulchai

¹Department of Surgery, Division of Neurological Surgery, Faculty of Medicine, Ramathibodi Hospital, Rama VI Rd, Bangkok 10400, Thailand. ake2296@pol.net

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet

|November 30, 2006

Summary

This study introduces the Ramathibodi External Ventricular Drainage (EVD) collecting device, a low-cost alternative made from repurposed medical items. It enables accurate cerebrospinal fluid measurement and intracranial pressure monitoring for neurosurgical patients.

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Last Updated: Jul 18, 2026

Endoscopic Third Ventriculostomy and Pineal Biopsy from a Single Entry Point

Endoscopic Third Ventriculostomy and Pineal Biopsy from a Single Entry Point

Published on: June 28, 2024

Area of Science:

Neurosurgery
Medical Device Engineering
Health Economics

Background:

External Ventricular Drainage (EVD) is crucial for managing neurosurgical conditions.
Commercially available EVD devices are expensive, posing a barrier in resource-limited settings.
The need for cost-effective EVD solutions is significant.

Purpose of the Study:

To introduce and evaluate the Ramathibodi External Ventricular Drainage (EVD) collecting device.
To assess the feasibility and accuracy of a low-cost, repurposed EVD device.
To demonstrate the clinical utility and economic benefits of the RAMA EVD device.

Main Methods:

The RAMA EVD collecting device is constructed from previously-used medical items.
The device was utilized with neurosurgical patients.
Cost analysis was performed comparing the RAMA EVD to commercial alternatives.
Cerebrospinal fluid (CSF) output measurement and intracranial pressure monitoring capabilities were assessed.

Main Results:

The RAMA EVD device costs approximately 100 baht, significantly less than commercial devices (>3,000 baht).
Over 200 RAMA EVD devices have been successfully used in neurosurgical patients since 2002.
Accurate CSF output measurement and intracranial pressure monitoring were achieved.

Conclusions:

The RAMA EVD collecting device offers a highly cost-effective solution for neurosurgical care.
Its simple assembly and low cost make it suitable for widespread adoption.
The authors recommend the RAMA EVD for use in other hospitals in Thailand and similar settings.