M Dialysis AB
Monitoring Tissue Chemistry
71 High Cut Off Catheter for Clinical Use
71 High Cut Off Microdialysis Bolt Catheter
This sterile, single use microdialysis catheter is minimally invasive and designed for implantation in brain tissue through the PTO 2L bolt kit from Raumedic or the IM3 Bolt Kit Integra. The catheter has a 130 mm long shaft and a membrane length of 10 mm. The shaft has a reinforced stainless steel section measuring 16.5 mm in length. This reinforcement is located where the compression screw of the bolt is to be tightened.
The most important characteristic of this microdialysis catheter is the dialysing membrane that has pores big enough to
allow diffusion of large molecules such as cytokines.
The ”Gold tip” makes the catheter visible on CT
The tip of the catheter contains a gold thread. The ”Gold tip” is visible on CT-scanning and makes it possible to locate the
exact position of the catheter.
Sampling of large moleculesThe 71 High Cut-Off Bolt Microdialysis Catheter is connected to a Microdialysis Pump. To avoid ultrafiltration of the dialysis
membrane, the catheter should be perfused with Perfusion fluid CNS Dextran. The outlet tube extends to a holder for a
microvial that collects the dialysis sample.
The microdialysis samples can be analyzed in the ISCUSflex Microdialysis Analyzer for Glucose, Lactate, Pyruvate,
Glycerol, Glutamate and Urea or sent to a clinical laboratory for analysis of large molecules such as cytokines.