● Tracheal tube—commonly called an endotracheal tube. Note that a tracheal tube may be incorrectly placed in the esophagus, so the term does not mean a correctly positioned tube in the trachea. Moreover, a tracheostomy tube is not the same as a tracheal tube as used in these guidelines, even though both tubes are placed in the trachea. The procedure of placing a tracheal tube is still called en...

Thin-walled tube bending has common applications in the automobile and aerospace industries. The rotary-draw-bending method is a complex physical process with multi-factor interactive effects and is one of the advanced tube forming processes with high efficiency, high forming precision, low consumption and good flexibility for bending angle changes. However, it may cause a wrinkling phenomenon,...

In this study, for the first time, the heat transfer and the pressure drop of zinc oxide nanoparticles in alternating elliptical axis (AEA) tube have been investigated experimentally. The zinc oxide nanoparticles were at volumetric concentrations 1% and 2%. The base fluid was heat transfer oil and the experiments were conducted at constant wall temperature. Also, the study was done in Reynolds ...

● Tracheal tube—commonly called an endotracheal tube. Note that a tracheal tube may be incorrectly placed in the esophagus, so the term does not mean a correctly positioned tube in the trachea. Moreover, a tracheostomy tube is not the same as a tracheal tube as used in these guidelines, even though both tubes are placed in the trachea. The procedure of placing a tracheal tube is still called en...

BACKGROUND Endotracheal tube security is a critical safety issue. We compared the mobility of an in situ endotracheal tube secured with adhesive tape to the one secured with a new commercially available purpose-designed endotracheal tube-holder device (Haider Tube-Guard). We also observed for the incidence of oropharyngeal or facial trauma associated with the 2 tube fixation methods. METHODS ...

Selection of spiral capillary tube for refrigeration appliances and the effect of changes in the parameters such as capillary tube dimensions i.e. capillary tube diameter, coil pitch, capillary tube length and inlet conditions of refrigerant to the capillary tube i.e. degree of subcooling, inlet pressure on the mass flow rate of the refrigerant, also investigation about the coiling effect of sp...

The laryngeal tube (VBM Medizintechnik, Sulz, Germany) is a relatively new extraglottic airway, designed to secure a patent airway during either spontaneous breathing or controlled ventilation. In this review article, we have assessed the potential role of the laryngeal tube during anaesthesia and during cardiopulmonary resuscitation. There are four variations of the laryngeal tube: standard la...