Likvor CELDA System

The Likvor CELDA™ System is designed to perform commonly used protocols for assessment of the cerebrospinal fluid (CSF) dynamics in a safe, automatic, and reproducible way. With its flexibility and easy handling, the Likvor CELDA™ System sets a new standard for investigations of CSF-dynamics.

The system includes:

  • Large 19" touchscreen, easy operation
  • High resolution peristaltic pump
  • Two pressure sensors
  • Automatic valve control
  • Line laser aids in adjusting the zero pressure level to desired height
  • Ten protocols are available, including both automated constant pressure and constant flow protocols
  • Report in PDF format saved to USB memory stick

The Likvor CELDA™ System is available in the following languages: English, Swedish, French, German, Finish, Danish, Norwegian and Dutch. If interest in other languages please contact Likvor AB

The Likvor CELDA™ System consists of several parts; Instrument, software, tool set, and a bed specifically made for the investigation.


CELDA Instrument

Likvor CELDA SystemThe instrument uses a high resolution peristaltic pump to perform accurate infusion of artificial CSF or drainage of CSF, and two pressure sensors are used to measure ICP. These are built onto a sterile single use tube set that is connected to the patient by lumbar puncture. Solenoid valves control direction of CSF flow, through the sterile tube set, to or from the patient. The Likvor CELDA™ Instrument also carries a built in laser allowing the instrument to be levelled to the patient, ensuring the accuracy of recorded ICP pressures.


CELDA Software

The Likvor CELDA™ Software contains ten different optional pre-programmed protocols including the most commonly used methods to investigate CSF dynamics. In addition to built-in hardware alarm limits, the software also controls the incoming data ensuring that investigations are performed in a safe and controlled way. The Likvor CELDA™ Instrument is equipped with a three-stage warning system that provides different alerts when any error occurs to ensure patient safety. CELDA Tool



The tools are disposables to the Likvor CELDA™ System. These are used for each investigation, and contains the pressure sensors and tubes used for patient connection.




The bed is custom made for these investigations. There is a hole in the back and the operator can place the bed at an angle, all useful for the lumbar puncture. 



Likvor CELDA System

The Likvor CELDA™ System has been developed to facilitate the investigation of the dynamics of the CSF system and to provide standardized results that will enable studies that compare data from different research groups. The Likvor CELDA™ System replaces many of today's methods. It can determine the patient’s intracranial pressure (ICP) at rest, and uses an infusion test to calculate the outflow resistance Rout. The infusion test can also be used to determine shunt functionality in patients that have already been operated on. In addition, the CELDA™ Software has two analysis protocols: preoperative and postoperative assessment of CSF dynamics. In both cases, the CELDA™ Software calculates the mean ICP, the flow and the resistance, all in real time. For postoperative assessment of shunted patients, the siphon functionality is examined comparing ICP lying down and sitting up.

The Likvor CELDA™ System, the first commercial instrument for better diagnostics of NPH, is also a superior instrument for testing existing shunt systems. Following a shunt implantation, follow-up visits necessary to evaluate whether unchanged or worsened symptoms can be corrected by shunt adjustment and also to discover any cases of shunt dysfunction requiring surgical shunt revision. Even improved patients could benefit with better adjustment of the shunt. In a pre- and postoperative evaluation with the automatic protocol it is easy to determine if a patient’s shunt works as intended. Using the instrument in postoperative care can avoid many unnecessary operations and can optimize shunt functionality.


Please reach out to us to discuss the possibilities for implementing CELDA System in your investigations or research.