Rythmic™ Evolution Yellow

  • Rythmic Evolution Yellow Family
    Evolution Yellow family
  • Rythmic Evolution Organiser 500 series
  • Rythmic Evolution Organiser 500 series
  • Banana bag for Mini Rythmic Yellow
  • Mini Rythmic Yellow in Banana bag
    Micrel 76
  • Micrel 08_Website
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Rythmic™ Evolution Yellow is an ambulatory pump for Pain Management aiming to reduce the risk of medication errors in Epidural and Intrathecal routes.
Key features of the Rythmic™ Evolution Yellow portable pump:
  • Clear colour identification of infusion route from the pump to the patient via yellow colour coded infusion set
  • A higher pressure limit range
  • Custom menu with or without Bolus / Dose Limit Loading dose to fit therapy protocols and avoid set up errors
  • Easy review of patient history thanks to easy-to-read history menu on the pump and display of graphs
  • Simplified set up menu for 3-step start procedure: Enter Rate, Volume to Infuse and Start infusion.
  • Allows for "Preventive Maintenance" notices.
  • Ability to print history and events on a portable printer or download on a PC
  • Connectivity to our proprietary mobile GPRS device IP-Connect™ Pack that allows for the best infusion monitoring service available today through our web based MicrelCare Service system

Rythmic™ Evolution limits "unnecessary alarm" activity
The pump has been designed to reduce most of unnecessary potential alarms whilst preserving full safety: 
  • No air alarm thanks to the air in line eliminator incorporated in all sets
  • Automatic restart after occlusion release
  • Long battery autonomy (9 days at 2ml/h) to decrease the frequency of battery alarms and related changes

Rythmic™ Evolution offers "All in One" innovative, high safety, infusion sets      
  • Yellow striped tubing for colour idetification of Epidural space or Intrathecal infusion routes
  • All sets include all pre-assembled components thus avoiding additional unsafe connections
  • Soft drug bag convenient to fill and prime manually or via the pump
  • Built-in anti free flow/ back check valve, air eliminator and extension line on all sets 
 For more information, please visit our Epidural infusion sets page.

Rythmic™ Evolution range offers real mobility to patients
  • Small, ergonomic and compact for true and comfortable ambulatory therapies
  • Drug bags for volumes up to 200 ml placed in dedicated space inside the pump
  • Lightweight: 335 g with dry cell battery
  • Outstanding battery autonomy
The pumps are also supported by a wide range of Accessories.

Please click on the Specifications Tab on the right to see the specifications of the Rythmic™ Evolution pump.

Delivery modes

Continuous,  Bolus only, Continuous + Bolus, Programmed Automatic Bolus (PAB)


+/- 5 %

Flow rate

0.1 to 100 ml/h

Programming units



0.1 to 99.9 mg/ml/0.1 to 999.9 µg/ml

Volume to infuse

1 to 9999 ml

Bolus dose

0 or from 0.1 to 60ml with 0.1ml increment

Bolus flow rate

100 ml/h, adjustable from 50 to 100 ml/h with 10 ml/h increment

Lockout interval

0 to 999 minutes

Special functions

Protocol libraries (60 protocol per library)

Lockable pump keyboard

Autopriming through the pump

Dose limit / x hours and  Bolus limit / x hours

Loading dose

Clinician bolus override

Mandatory priming (enabled, warning only, disabled)

Therapy monitoring

Recording of patient pain scores with visual analogue scale (VAS)

VAS available in the pump history, printable and computer downloadable

"Ready to Connect" to the MicrelCare System for therapy monitoring through the web.


0.1 to 2.0 ml/h

Automatic restart of infusion after occlusion release


Safety features

Air in line eliminating filter

Lockable protective cover for drug container

Code protected stop of infusion

Free flow protection 

Programming within protocol limits

Dedicated therapy front face for regional analgesia (PCEA/PCRA yellow color code)

Occlusion alarm levels

Low (0.8 +/- 0.4 = 0.4 - 1.2 bar)

Middle (1.2 +/-0.4 = 0.8 - 1.6 bar)

High (1.6 +/- 0.4 = 1.2 - 2.0 bar)

Alarms & warnings

Occlusion near end and end of infusion

Keyboard continuously pressed

Low and depleted battery

Dose limit, bolus limit

Open mechanism, preventive maintenance warnig

Access code levels



Protocol libraries programmed with "Rythmic™   Evolution Therapy Manager" computer software

Direct programming on the pump possible with code

History, infusion graph / printout and PC download

Yes, including 6500 time stamped events event log

Infusion graph, bolus graph/list, pain level/graph/list

 "Plug and play" print facility

Battery life

9 days at 2 ml/h

Power supply

100 to 240 V, 50-60 Hz (with optional adaptor KS5.01.615.4)

Weight with battery

300g for Mini Rythmic™ Evolution

335g for Rythmic™ Evolution

740g for Rythmic™ Organizer 500 series


130mm x 75mm x 46mm for Mini Rythmic™ Evolution (including 100 ml bag) 

130mm x 133mm x 46mm for Rythmic™ Evolution (including 200 ml bag)

157mm x 299mm x 82mm for Rythmic™ Organiser 500 series (including 500 ml standard bag)


 Acute Pain Management Brochure - English

 Rythmic™ Evolution Yellow Technical Sheet - English

Please contact us to provide you with the latest Declaration of Conformity for Rythmic™ PCEA.

Regulatory Approvals

You can download the following quality certificates from the "About Us | About Micrel" section:

CE Mark

ISO 9001

ISO 13485

ISO 14001

Freedom without clinical compromise