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MARTIN CHRIST

LyoCoN - Optimization of freezing for vials

Freezing of many vials in a freeze dryer normally works out as a stochastic process. All vials will freeze only within a certain time frame, e.g. 1 hour. Furthermore, this crystallization happens at different temperatures. Crystal structure and later drying behavior will diverge.
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lifescience@analis.be
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lifescience@analis.be ++(0)81 25 50 06
DESCRIPTION VIDEO
DESCRIPTION
 
At the push of a button initiated crytallisation of all vials inside the freezedry

 

This developed technology LyoCoN by Christ creates a controlled nucleation of all to be lyophilised vials:

After loading of the machine, the cold ice condenser accumulates ice crystals (pict. 1). Simultaneously the liquid product is cooled down close to the freezing point. In the next step a slight vacuum is established in the freezedryer (pict. 2).

The external recipient is kept under atmospheric pressure. Finally a pressure equilibration between recipient and freezedryer is started by opening a valve to the ice condenser. The air/gas from the recipient is injected into the ice condenser.

 

The resulting ice fog infiltrates all vials (pict. 3). These crystal nuclei immediately start homogenious crystallisation in all vials.


After this, the freezedryer is aerated completely to atmospheric pressure. Freezing of all crystallized vials can be continued in a conventional way, e.g. further freezing down, annealing etc.

 

 

 

Martin Christ LyoCoN – facts at a glance:

 

  • formation of the ice fog with moisture out of the product, no external media necessary. GMP-compliant!
  • simple basic principle – vacuum available anyhow. No overpressure design of the machine necessary

  • therefor also ideal for smaller pilot units + retrofit easy possible
  • no external waste media – which might contain drug/product - produced by LyoCoN.

 

 

 

figure 2

 

 

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VIDEO
MARTIN CHRIST website
MARTIN CHRIST
Martin Christ is one of the leading manufacturers of freeze drying units world-wide, with an experience of more than 50 years and offers an entire program of laboratory, pilot and production plants for all applications.
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Prices are quoted in euro (taxes excluded) and apply in the Benelux (recycling fee included). They are subject to change without notice. We reserve the right to adjust pricing errors and to limit quantities.

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