Closed Suction Device with Automated Shutoff Valve, Pressure and Volume Sensor

Tech ID: hac000805



Although endotracheal (ET) tubes are effectively used to treat patients requiring respiratory ventilation, several complications may still arise. In particular, many patients receiving ET intubation develop an infection of the lungs, which can lead to additional complications and significantly affect the mortality rate of intubated patients. Infections can occur due to contaminated pooled secretions entering the trachea and lungs from an ET tube, especially upon cessation of mechanical ventilation. One instance in which the flow of air stops is during suctioning, which is performed to clear the tube of secretions.


Closed suction systems (CSSs), which are the most commonly used suctioning systems in the United States, typically have a cavity that allows a caregiver to inject liquid, such as saline, into the circuit or airway, before, during or after the suction procedure. The injection requires a break in the system, which compromises the closed circuit and allows for contamination. The incidence of infections and complications associated with infections is also exacerbated if inaccurate volumes of fluids are administered. Further, an additional shortcoming of existing suctioning methods is that the administration of lavage fluid is not electronically tracked. Instead, electronic health records typically require respiratory therapists or nurses to estimate the time of lavage and suctioning performed.


Technology Description

Dr. Dani Hackner, an experienced pulmonologist, has developed a CSS that could reduce the risk of infection associated with ET intubation. This new system rinses and suctions the patient’s airway and/or ET tube without breaking the circuit, and is electronically controlled so that volumes of administered fluids can be electronically tracked and automatically recorded into the patient’s electronic health record.


Stage of Development

Prototype available



• Reduces infection by keeping a closed circuit during airway and/or ET tube suctioning

• Electronic administration of lavage fluids

  o Volumes are regulated and automatically recorded



Suctioning of the airways and ET tubes of intubated patients


Intellectual Property

• PCT application filed - PCT/US2017/017545

       o Nationalized in the U.S. and Europe 


Patent Information:
For Information, Contact:
Julien Brohan
Dani Hackner