Endotracheal Cleaning Suction Brush

Tech ID: ros000913



Patients in need of breathing support are generally treated with placement of a breathing tube. Physicians insert an endotracheal tube (ETT) through the mouth or nose into the windpipe in a process called endotracheal intubation. Patients in need of chronic ventilator support (i.e., ALS or post head trauma) receive a surgical opening in front of the neck (tracheo[s]tomy) providing access to the windpipe via a tracheal tube (TT). In both scenarios, lung secretions, blood, vapor, and bacterial seeding (with generation of slimy microfilms) lead to build up along the inner surface of the tube. Over short periods of time, such build-up becomes the perfect bacterial breeding ground and hardens to a solid film.

Build-up in the inner ETT/TT lumen increases the risk of ventilator associated pneumonia. Further, with progressive luminal narrowing, air flow resistance increases leading to increased work of breathing by the patient which has been shown to delay recovery and liberation from the ventilator.  Both bacterial seeding and luminal narrowing of the ETT/TT correlate to increased length of hospital stay and health care costs.


Technology Description

Dr. Axel Rosengart of Cedars-Sinai Medical Center (CSMC) has designed a device that combines tracheal suctioning and ETT cleaning into one convenient function. This combination cleaning catheter adds a suction-brush segment to the suction catheter which allows ETT/TT brush cleaning and immediate aspiration of brushed off endoluminal debris each time the patient secretions are removed by conventional in-line suctioning.


Stage of Development

Concept only



The major disadvantages of existing products are that they (a) require disconnecting the ventilator (risks for atelectasis, hypoxemia, aspiration); (b) require the patient to undergo a specific, separate cleaning event; (c) the cleaning device needs in-servicing and is single-use only; and (d) may cause ETT/TT dislodgement during cleaning.

In contrast, Dr. Rosengart’s device:

a)       Allows ETT/TT cleaning to occur simultaneously with suctioning which transforms cleaning into an automatic, built-in provider function.

b)       Does not require ventilator disconnection which increases safety for the patient and lowers the risks of adverse events due to ventilator disconnection.

c)       Is without the risk for ETT/TT dislodgement during cleaning.



Breathing support


Intellectual Property

•       PCT application PCT/US2016/060661 filed.


Patent Information:
For Information, Contact:
Julien Brohan
Axel Rosengart