Control with Ultrasonic Precision

Symptomatic hypotension is still one of the most serious problems that can occur during hemodialysis.1 Ultrafiltration leading to a blood volume reduction is one of the primary stress factors for blood pressure control.2

The Blood Volume Monitor (BVM) provides routine feedback control of relative blood volume (RBV). By measuring blood volume changes, the effect of ultrafiltration on blood volume reduction can be quantified and limited to a level that is tolerated by the patient.

Additionally, individualized patient alert levels can be established. When the relative blood volume (RBV) alert level is reached, ultrafiltration ceases.

Cardiovascular Stability with Thermal Control
Ultrafiltration also leads to vasoconstriction and a reduction in body surface heat loss.3

When this occurs the temperature of the patient may increase which may result in thermal related hypotension.

The Blood Temperature Module (BTM) controls the dialysate temperature in response to the physiological needs of the patient. In a closed loop bio-feedback system, the control algorithm of the BTM will compensate a change in body temperature by regulating the temperature of the dialysate.

The BTM can also be used to monitor access recirculation.

A temporary lowering of the dialysate temperature results in a reduction of the venous temperature. The BTM looks for a corresponding temperature drop in the arterial line to determine the amount of access recirculation. Regular monitoring can alert the operator of vascular access complications.