NKV-550 Series Ventilator System

The NKV-550 Series Ventilator System was designed to create “Clinically Relevant Solutions. Optimizing Patient Care.” With more than 500 years of ventilation experience, the NK development team developed the NKV-550 Series Ventilator System with all the essential capabilities needed by bedside clinicians, such as invasive ventilation, non-invasive ventilation and high flow oxygen therapy. In order to provide Clinically Relevant Solutions. Optimizing Patient Care, the Ventilation System provides: Workflow Optimization, Lung Protection, Infection Control, Connectivity and Minimal Maintenance.


Join Our Upcoming Webinar

The Appropriate Application of HFNC, BIPAP and CPAP Post-Extubation

Thursday, September 26, 2019 at 9:00 AM PDT



Workflow Optimization

The NKV-550 assists the clinician to optimize their workflow. The entire graphic user interface (GUI) is a touch screen with Expansion buttons allowing clinicians to select and customize their screens and application configurations. The NKV-550 has eight key quick-access buttons most often used by clinicians, including but limited to delivery of manual breaths, delivery of elevated oxygen at a pre-set determine percentage, and performing inspiratory and expiratory hold maneuvers. Moreover, the NKV-550 has applications with guided steps for clinicians to perform either Open or Inline Suctioning. The Open Suction application includes optional pre-post oxygenation, circuit disconnect and reconnect; whereas the Inline (Closed) Suction application includes optional pre-post oxygenation. Most importantly, the clinician can touch any item on the GUI and receive helpful detail about the feature, parameter, and/or alarm. With the Ventilator System being app based, new applications can easily be uploaded onto the system.



Lung Protection

The NKV-550 Series Ventilator System, allows the clinician to set the patient’s body weight in order to calculate ml/kg, view in the monitoring section the measurement of tidal volume ml/kg and the estimated driving pressure, as well as being able to set a tidal volume alarm based on ml/kg. In addition, to setting the delivery of tidal volume based on a patient’s body weight, the literature strongly suggests further lung protection is needed. The Open Lung Approach has been used by many clinicians for patients receiving mechanical ventilation. This includes recruiting the lungs and determining the PEEP level necessary to maintain the lungs open by a decremental PEEP trial (i.e., PEEP titration). Even though lung recruitment has been demonstrated as beneficial for many patients receiving mechanical ventilation, this procedure is not often practiced.  The NKV-550 offers Lung Protection utilizing a suite of Gentle Lung applications. These applications include Recruitment Assessment (RA), Recruitment Maneuver (RM), PEEP Titration (PEEP-T), and Transpulmonary Pressure (TPP). The RA, RM, and PEEP-T give clinicians pre-selected Control Settings, however, allow the clinician to alter these settings based on the patient prior to initiating the selected application. Each of these applications are guided and at the completion of each of these applications, the clinician can study the relationship between PEEP and various other parameters (e.g., compliance, SpO2, EtCO2).

Infection Control

The NKV-550 Series Ventilator System offers Protective ControlTMfor clinicians treating patients with contagious diseases in strict isolation, and for patients undergoing a radiologic procedure. The NKV-550 ventilator allows the clinician to connect a second graphic user interface (second GUI) to the ventilator’s main unit in addition to the primary graphic user interface (primary GUI). The second GUI is connected to the ventilator through a wired cable, allowing the clinician to view the ventilator monitors and alarms, adjust ventilation and alarm settings, as well as audio pause the alarm sound while monitoring the patient from the observation window.


The NKV-550 Series Ventilator connects to the HL7 Gateway and data can transfer into the HIS/CIS HL7 System. Moreover, ventilator data can transfer to a designated NK patient monitors, or through various LAN systems.

Minimal Maintenance

Maintenance is required one to two years. The oxygen sensor needs to be replaced every year. The ventilator will display an on-screen informational message. To change the oxygen sensor, one screw is undone to remove the access cover. Every two years, the ventilator will display an on-screen informational message displaying the need to replace the external batteries. There is no need to go inside the ventilator to perform this function. Finally, the ventilator will display a PM Due icon every two years when the PM maintenance is due. During this time, filters and the rubber components need to be replaced with a low-cost PM kit.