Blood Pump

 

INNOVATION: The Pulsar™ Blood Movement System

 

The revolutionary Pulsar™ Blood Movement System consists of two components: a single-use disposable Pulsar Blood Pump chamber assembly, which is part of the arterial bloodline, and a pneumatic system within the Allient System used to generate alternating positive and negative pressures within the pump chambers.

 

The Pulsar Blood Pump provides expanded safety and versatility advantages through its unique, pressure-limited, two-chamber design. The gentle, heart-like diaphragm pump cannot develop high pressure if occluded. Single-needle operation assures venous disconnect safety.

 

This innovative blood pump can accommodate both single- and dual-lumen vascular access without requiring a specialized blood set for each mode or a mechanical adjustment to change pump configuration. The desired mode is simply programmed into the system via touchscreen control prior to treatment.

 

 

The Pulsar Pump Chambers

 

The pump consists of two-chambers with a flexible medial diaphragm in each chamber. The top and bottom of each chamber opens to the blood tubing; the back is attached to a pneumatic system, which is used to move the diaphragm.

Vacuum pressure is used to draw blood into the chambers. Positive pressure is applied to push blood from the chambers and towards the dialyzer. Watch our blood pump video to see the pump in operation.

 

 

The chambers fill and empty in unison for single-needle dialysis and alternate, one filling while the other empties, with dual-needle access mode. Blood flow range in single-lumen mode is 150-200 ml/min and 150-400 ml/min in dual lumen mode.

 

Because the Pulsar pump is not a roller pump, high occlusion pressure cannot develop. Ultrasonic flow detectors on both blood inflow and outflow lines continuously provide direct measurement of blood flow rate.

 

 

Extra Level of Safety in Single-Lumen Mode

 

The Allient System provides air detectors on both the arterial and venous tubing. This provides an extra level of protection for the patient, especially in the single-lumen mode. If the bloodline should separate from the needle (or if the needle slips out of the patient), the resulting entry of air into the arterial line will be detected before the blood can reach the pump. As a result the pump immediately stops, clamps close on both the arterial and venous blood tubing and an audible alarm sounds. The benefit: patient safety.

 

 

A Major Advance in Single-Lumen Efficiency

 

With the Allient System’s innovative design, all traditional single-needle limitations have been significantly reduced or eliminated.

 

The Pulsar Blood Movement System:

• Does not add noise when in single-needle mode;
• Requires no additional blood volume;
• Requires no additional pumps to be coordinated to return blood;
• And features virtually non-existent incremental recirculation, estimated to be less than 1%.
• Finally, laboratory studies have suggested that there may be efficiency advantages to a pulsatile flow pattern vs. a standard roller pump flow pattern

Pulsar – the first truly new blood pump in the new millennium.