The CombiSet® True Flow bloodline with Twister® reverse flow device makes monthly blood flow measurement as simple as a twist.



Developed with patient and staff safety in mind, the Twister device's closed-system design eliminates the need to disconnect the bloodlines manually, thereby reducing the risk associated for blood and bloodborne pathogen exposure.

The Twister device is designed to perform optimally when used with our 2008® series hemodialysis machines, which account for over 90% of machines used for hemodialysis today in the U.S.


How the Twister Device Works

When using a 2008 series dialysis machine with OnLine Clearance (OLC) with Access Flow software, access flow measurements can be obtained by following the screen prompts provided throughout the process.1

When used in conjunction with the 2008 series machine and integrated OnLine Clearance (OLC) with Access Flow software, the Twister device provides an economical, effective, and simple solution to your facility's vascular access surveillance needs.




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Revolutionize Your Approach to Vascular Access Surveillance


1. For complete instructions, please reference the user's manual for the specific model 2008 series hemodialysis machine you are using to perform the test.

Caution: Federal (US) law restricts these devices to sale by or on the order of a physician.

Note: Read the Instructions for Use for safe and proper use of these devices. For a complete description of hazards, contraindications, side effects and precautions, see full package labeling.

© 2016, 2019, Fresenius Medical Care. All Rights Reserved. Fresenius Medical Care, the triangle logo, Fresenius Renal Technologies, BlueStar, Twister, CombiSet, 2008, and Optiflux are trademarks of Fresenius Medical Care Holdings, Inc. or its affiliated companies. All other trademarks are the property of their respective owners. P/N 102809-01 Rev C 07/2019