UnoMeter™ Safeti™ Plus – Closed System

The UnoMeter™ Safeti™ Plus closed system permits the precise and safe measurement of urine volume.


Unproblematic collection  Thanks to needle-free sampling with KombiKon™, there is no risk of needlestick injuries.

Speedy, reflux-free emptying  The double-lumen tube with a non-return valve ensures the speedy drainage of the tube into the chamber without reflux to the patient.

Precise and quick measurement  The clear scaling makes permits quick and precise reading of fill levels.

Low-risk venting  The protected hydrophobic bacterial filter permits low-risk venting of the system.

Kink protection  The anti-kink spiral prevents kinking.


  • Minimised risk of contamination thanks to reduced system length and thus increased distance to the floor
  • Variable fixing options by tape, strap and hook


The problem: needlestick injuries

More than 2% of all urine samples contain blood.[1]

Needlestick injuries are one of the main causes of infections with hepatitis B and C virus as well as HIV and constitute a great risk to nursing staff.[2] In Germany alone, approx. 500,000 needlestick injuries occur each year [3]. This results in consequential costs of about 30 million euros per year just in Germany.[4]

The solution: KombiKon™

The KombiKon™ urine sampling point allows nursing staff to take urine samples without the use of a needle and thus safely. With the amendment to the technical directive regarding ‘Biologische Arbeitsstoffe im Gesundheitswesen und in der Wohlfahrtspflege’ (‘Biological materials in health care and welfare work’) (TRBA 250), which came into force on 1 August 2006, the duty of employers to prevent needlestick injuries have now been set out in binding terms.

A clinical test has shown that KombiKon™ can be used without the risk of contamination to the urine drainage system for at least ten sample collections.[5] In addition, KombiKon™ is a universal connector suitable for most standard syringes thus rendering expensive special cannulas superfluous. 

1 Armstrong, Sara E. (1994): ‘The cost of needle-stick injuries. The impact of safer medical devices’.
2 ‘Needlestick prevention for worker safety: sharps injuries still a leading occupational hazard’, Environment of Care News, August 2005, Volume 8, Issue 8.
3 Bundesverband Medizintechnologie e. V., Fachbereich Nadelstich Prävention, Berlin, 2009.
4 Informationsbroschüre der Initiative SAFETY FIRST! ‘Der unterschätzte Arbeitsunfall, Infektionsrisiko durch Nadelstichverletzungen’, Heidelberg (2009).
5 Tvede, Michael (2003), University of Copenhagen (Denmark): ‘Leistungsfähigkeit des kanülenfreien Probeentnahmeanschlusses KombiKon’.


1 Insert syringe 2 Turn clockwise to lock in place 3 Take urine sample and withdraw syringe – the slit closes automatically 


Unomedical a/s (A ConvaTec Company)

Ordering Information

UnoMeter™ Safeti™ Plus – Closed System
REFDescriptionBottom outletTube lengthPackagingVolumeVPE
158100410190Chamber volume: 500 mlX110 cmsterile2000 ml10
158101210190Chamber volume: 500 mlX150 cmsterile2000 ml10