ventilator circuit


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ventilator circuit

The external or internal pneumatic delivery component of a mechanical ventilator.
See also: circuit
Medical Dictionary, © 2009 Farlex and Partners
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Aerosol devices are usually placed in three different locations on the ventilator circuit: (1) attached to the vented mask with leak port, (2) located between the leak port and ventilator on the NIV circuit, or (3) placed between the leak port on the circuit and unvented mask.
How to optimize aerosol drug delivery during noninvasive ventilation: What to use, how to use it, and why?
In a systematic review and meta-analysis study about the effect of changing ventilator circuits in preventing ventilator-associated pneumonia concluded that routine change of ventilator circuits is not necessary and changing only when contaminated or damaged is adequate.22 In another study conducted in a pediatric ICU there was no difference between changing ventilator circuit every three days or every seven days in terms of risk of ventilator-associated pneumonia.23 In this study, the ratio of nurses replying "I change the ventilator circuits and moisturizers at least seven days after the procedure when there is no visible contamination" was 51.8% (Table-IV).
Precautions taken by nurses about the prevention of Hospital-Acquired Infections in Intensive Care Units
[6] is one of the few identified that investigated the prevalence of nebuliser contamination and decontamination and storage protocols for nebulisers used within a ventilator circuit. In this study, nebulisation was mainly performed using Micro Mist nebulisers, and more than half of these nebulisers (52%) presented with bacterial growth.
Contamination of nebulisers and surrounding air at the bedside of mechanically ventilated patients
Caption: Figure 1: Configuration of the ventilator circuit. A thermohygrometer was inserted between the distal end of the heated inspiratory circuit and the Y-piece.
Insufficient Humidification of Respiratory Gases in Patients Who Are Undergoing Therapeutic Hypothermia at a Paediatric and Adult Intensive Care Unit
In the United Kingdom, reusable ventilator circuits were also identified as the cause of a B.
Contaminated ventilator air flow sensor linked to Bacillus cereus colonization of newborns
Another way of preventing VAP is to keep the ventilator circuit clean.
The role of the nurse in ventilator-associated pneumonia/Rol de enfermeria en la neumonia asociada a la ventilacion mecanica
The ICU poses numerous challenges to students, including the physiologic instability of patients, involvement of multiple physiologic systems, the need for close monitoring of physiologic responses to movement and other physical therapy interventions, and the number and complexity of invasive and noninvasive monitoring and interventional devices (chest tube, feeding tube, electrocardiogram leads, tracheostomy tube with ventilator circuit, arterial line, etc).
Use of high fidelity human simulation to teach physical therapist decision-making skills for the intensive care setting
None of these studies identified a greater risk of VAP when extending ventilator circuit change intervals beyond 2 days (Han et al 2001; Lien et al 2001; Fink et al 1998; Kotilainen and Keroak 1997; Hess et al 1995).
Three versus seven day circuit changes of humidified oxygen circuitry: a feasibility study
Patients can breathe effectively through a ventilator circuit utilising the endotracheal tube (ET) and humidified oxygen.
Basic concepts in mechanical ventilation
Make sure that the ventilator circuit is intact, with the endotracheal tube in the correct position.
Mechanical ventilation in the emergency department: Intubation and mechanical ventilation are often needed in emergency treatment
* change of ventilator circuit no more often than every 48 hours, and
Evidence-based practice: use of the ventilator bundle to prevent ventilator-associated pneumonia
In addition to being a modular system, the endotracheal tube (ETT) Connector Access Valve completely isolates the suction catheter from the patient, maintains an obstruction-free airway after each suction episode, and minimizes ventilator circuit breaks, maintaining efficient ventilation reducing the potential for infection.
Closed Suction Catheter System

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