Pressure-controlled dual irrigation-suction system for microneurosurgery: technical note
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Updated: Jun 20, 2026

Construction and Implantation of a Microinfusion System for Sustained Delivery of Neuroactive Agents.
Published on: March 17, 2008
Yoshikazu Okada1, Takakazu Kawamata, Akitsugu Kawashima
1Department of Neurosurgery, Tokyo Women's Medical University, Tokyo, Japan. yokada@nij.twmu.ac.jp
Objective:
We designed a new irrigation-suction system consisting mainly of a pressure-resistant irrigation fluid container, dual irrigation and suction devices, and an intracontainer pressure regulator.
Methods:
The intracontainer pressure can be regulated from 0 to 0.02 MPa. This system is simple and can be operated simultaneously by both an operator and an assistant. It is powered by compressed air, which is available in regular operating rooms of any hospital.
Results:
No complications including blood clots in the brain and vascular injuries related to this system were observed.
Conclusion:
The excellent and safe performance of this dual irrigation-suction system in clearing the operating field by an operator and/or an assistant has been proven in more than 300 neurosurgical operations.
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