Blood components each have their own storage requirements. Red cells are usually stored at 2 to 6 °C, platelets at 20 to 24 °C with continuous agitation, and plasma frozen, typically at -25 °C or colder. Every unit is scarce and donated, and a storage failure can affect patient care directly. Independent monitoring shows that every component stayed within its range, and alerts the right person when it does not.

Why blood storage monitoring is different

A blood bank combines several asset types with different ranges in one department, often with 24/7 use. Units move between the blood bank, operating theatres, wards and satellite refrigerators. Requirements from blood directives, national regulations and accreditation standards expect continuous monitoring, alarms and traceable records.

The failure modes that matter

  • A blood bank refrigerator drifts outside 2 to 6 °C, often because of door use or loading.
  • A platelet incubator or agitator stops, or temperature leaves 20 to 24 °C.
  • A plasma freezer warms because of compressor, power or door problems.
  • A satellite refrigerator on a ward or in theatre is not monitored as closely.
  • An alarm sounds locally but nobody is present to hear it.
  • The monitoring sensor or its communication path fails.
  • Evidence for release or discard decisions is incomplete.

Measure what represents the component

Probes in blood bank refrigerators are often placed in a product simulant so that the reading represents the blood bags rather than the air. For platelets, both temperature and agitator status are relevant. For plasma freezers, placement should reflect the warmest loaded position. Door contacts and power signals help explain events.

Limits, delays and response time

Limits follow the applicable standards and the hospital's own procedures. Delays should be short enough to allow timely action, because blood components tolerate little exposure. Escalation should reach a person on every shift, including the transfusion laboratory at night and the facility or technical team for equipment problems.

Escalation and responsibility

XiltriX Intelligence applies the limits, delays and contact sequence agreed with the customer. Escalation continues through the customer's configured contacts until someone acknowledges the alarm. The customer's own team assesses the blood storage unit, the stored material and the process, and carries out the physical response.
XiltriX does not respond to the customer's blood storage alarm. XiltriX Care provides 24/7 technical support when the monitoring system itself has a problem.

Continuity when systems fail

The event that threatens the blood storage can also affect the building around it. XiltriX Infrastructure uses independent sensors and monitoring stations with integrated battery support, resilient connectivity and local data buffering. A network interruption should not create a gap in the measurement record, and the loss of a sensor signal becomes visible as a fault in its own right.
The state of the monitoring chain is therefore part of the evidence, not an assumption.

XiltriX Resilience around blood and plasma storage

Infrastructure provides independent sensors, monitoring stations, battery support, resilient communication and local buffering.
Intelligence brings the measurements together per asset, department and site, with trends, warnings, alarms, escalation and a complete audit history.
Care supports installation, calibration, maintenance, periodic review and 24/7 technical response for the monitoring system.
Together, the three layers connect a condition to a person, a response and a record.

Questions to settle before implementation

  • Which components are stored where, including satellite refrigerators?
  • Which ranges and limits follow from the applicable standards?
  • Are probes placed in a product simulant where appropriate?
  • How is agitator status for platelets included?
  • Who responds on every shift, and how is acknowledgement recorded?
  • Which evidence supports release or discard decisions?
  • How are calibration and periodic checks planned?

Frequently asked questions

Why use a product simulant?

Air temperature changes quickly when a door opens. A simulant represents the temperature of the blood bags and reduces nuisance alarms, while real warming is still detected.

Should satellite refrigerators in theatres be monitored too?

Yes, where blood components are stored there. They are often the least observed units in the chain.

Who responds to a blood bank alarm?

The customer's designated team responds and decides on the use of the components. XiltriX provides and supports the monitoring chain, with 24/7 technical support for monitoring-system faults.

A practical next step

Map the full route of blood components in your hospital, from the blood bank to every satellite location. Each storage point on that route needs a defined range, a monitored sensor and a responsible person.