The Computer Assisted Resuscitation Algorithm (CARA) is a closed loop software system that drives a high output infusion pump (M100) used for fluid resuscitation of patients suffering from conditions that lead to hypotension. The system will be blood pressure as the control for a proportional closed-loop control algorithm. The CARA system will be ultimately fielded on up to 3 platforms: LSTAT (Life Support for Trauma and Transport), DataPak and WPSM, collectively known as HOSTS. The software will have to accommodate various blood pressure inputs (e.g. arterial line, non-invasive cuff, pulse wave, etc).
The CARA is intended to support primary intravenous fluid resuscitation therapy to rapidly restore intravascular volume and blood pressure in patients with clinical shock, bypotension, and hypoperfusion states as a result of hemorrhagic blood loss, occult hemorrhage, neurogenic shock and septic shock. Currently the uses for the CARA system will be for combat casualties. The normal use will be to attach a physiological monitoring device (PMD) like the LSTAT or DATAPAK to the patient by a caregiver, identified as a Medic, Nurse, or Doctor. Once the PMD is attached, vital signs will be taken and registered to the CARA. The CARA will respond according to the condition of the patient which will be determined by the patient's blood pressure. The intended use is for combat casualties but there may be times where civilians may be treated by the CARA as well. The CARA will be limited to providing the care attributed to the feature crystalloid and colloid solutions including, but not limited to dextrose, water, lactated Ringers, saline, dextran, and Hespan.