CT-D4 Dry Plasma Thawer

CT-D4 Dry Plasma Thawer Defroster
  • Thaws up to 4 plasma bags (450 ml) of Fresh Frozen Plasma (FFP) at a time
  • Water never touches the plasma bag – contained water system isolates the plasma bags & operator away from circulating water; significantly less likely to compromise sterility
  • Uses a patented massaging action to agitate and circulate the thawing plasma inside of the plasma bag – no unreliable mechanical parts involved
  • Bright white, corrosion-resistant, sanitary PVC construction is easy to clean & maintain
  • Low maintenance burden – unit needs to be drained & cleaned once every three months
  • Temperature setting from 25.0°C to 40.0°C (preset to 37.0°C) accurate to ±0.1°C
  • Compact (WxDxH): 35cm x 53cm x 35cm (14in x 21in x 14in)

Click Here to Download the CT-D4 Brochure as PDF

Click Here For US Department of Defense (DoD) National Stock Numbers (NSNs) Ordering Information

CT-D4 Dry Plasma Thawer Defroster Agitation


  • Leak sensors trigger visual and audio alarms
  • Primary and secondary overheat protection systems
  • Audible and visual high temperature alarm with self test
  • Thaw time fully programmable (to within 1 min)
  • Thaw temperature fully programmable (to within 0.1°C)


  • Convenient loading; plasma bags are placed between bladders with recirculating water at thawing temperature
  • Plasma bags remain visible throughout the thawing process to check progress


  • No wet plasma bags or overwrap bags to promote bacterial growth
  • Separate thawing compartments isolate leaks
  • Air entering and leaving the units is filtered through a 0.1 micron air filter to prevent spreading contaminants and to help keep internal water in the bath clean


  • FDA Cleared and CE Marked
  • Available in 115V or 230V
  • 2 year warranty (warranty extensions available)
  • Made in the USA

The CytoTherm CT-D4 Dry Plasma Thawer is a laboratory instrument that uses a patented thawing system (US Pat No. 7,722,839 B2) to thaw plasma while keeping the plasma bags dry throughout the thawing process.  Tempered water from an isolated water bath is recirculated through a bladder.  The frozen plasma bags are placed on one part of the bladder while the rest of the bladder is folded over to cover the plasma bags.  The bladder is divided into segments which are pressurized at different times during the thawing process to gently massage the plasma bags.  The pressurized bladder conforms to the shape of the plasma bags for efficient heat transfer and temperature uniformity, while the massaging action agitates and circulates the thawing contents of the plasma bag.

The CT-D4 comes with a rack that will thaw up to 4 plasma bags (450 ml) at a time (or 2 larger 1,000 ml bags at a time).  Plasma bag leakage is isolated to one of two separate sections and if a leak is detected, the thawing stops and an alarm sounds. The contained water system isolates the plasma bags & operator away from the circulating water and is significantly less likely to compromise sterility.

Link to Video on YouTube:  CT-D4 Dry Plasma Thawer Video on YouTube

Download Instruction Manual:  CT-D4 Dry Plasma Thawer Instruction Manual

US Department of Defense (DoD) / Defense Logistics Agency (DLA) Information

CT-D4 Dry Plasma Thawer 6640-01-610-8915 THAWING SYSTEM,PLASMA AND FROZEN CT-D4 5L498
Replacement Bladder For CT-D4 6640-01-623-2166 BLADDER,PLASMA THAWING SYSTEM CD4-BL 5L498
Replacement Air Filter For CT-D4 6640-01-623-9031 FILTER,AIR,PLASMA THAWING SYSTEM C4-FILT 5L498

CytoTherm is a U.S. government certified Service-Disabled, Veteran-Owned Small Business (SDVOSB).

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