scholarly journals Do Needleless Connector Manufacturer Claims on Bidirectional Flow and Reflux Equate to In Vitro Quantification of Fluid Movement?

2020 ◽  
Vol 25 (4) ◽  
pp. 28-36
Author(s):  
S. Matthew Gibson ◽  
Jonathan Primeaux
Keyword(s):  
Observational Study ◽  
Flow Control ◽  
Fluid Movement ◽  
Needleless Connector ◽  
Bidirectional Flow

Highlights NC labeling does not appear to correspond with manufacturer claims. Two of 13 NCs passed the test for bidirectional flow control. All NCs reflux either on connection or disconnection. Neutral displacement does not appear to be present in the NCs tested in this observational study. Accurate bidirectional flow control, reflux cycle, and volume of reflux beyond the manufacturer’s performance claims will assist in the proper use of NCs.

Dimensional variations of left-sided double-lumen endobronchial tubes: an observational study

2019 ◽  
Author(s):  
Niels Hegland ◽  
Sebastian Schnitzler ◽  
Jan Ellensohn ◽  
Marc P Steurer ◽  
Markus Weiss ◽  
...  
Keyword(s):  
Observational Study ◽  
Airway Management ◽  
Double Lumen ◽  
Tube Size ◽  
Size Selection ◽  
Dimensional Parameters

Abstract Background: Tube size selection is critical in ventilating patient`s lungs using double-lumen endobronchial tubes. Little information about relevant parameters is readily available from manufacturers. Methods: In this observational study in a benchmark in-vitro setup, several dimensional parameters of four sizes of left-sided double-lumen endobronchial tubes from six different manufacturers were assessed, such as distances and diameters of tube shaft, cuff lengths and diameters as well the angle at the tip. Results: Endobronchial tubes of ostensibly the same size revealed wide variation in measured parameters between brands from different manufacturers. In some parameters, there was an overlap between different sizes from the same manufacturer, i.e. diameters and distances did not increase with increasing nominal endobronchial tube size. The information about dimensions of endobronchial tubes provided by manufacturers’ leaflets is insufficient. Conclusions: Endobronchial tube size selection is complicated because clinically relevant parameters are unknown and vary considerably between different manufacturers. Keywords: Airway management, double-lumen endobronchial tubes

Fluid Movement Across the Wall of the Small Intestine in Vitro

1956 ◽  
Vol 187 (2) ◽  
pp. 244-246 ◽  
Author(s):  
T. Hastings Wilson
Keyword(s):  
Small Intestine ◽  
Sodium Chloride ◽  
Saline Solution ◽  
Isotonic Saline ◽  
Bicarbonate Secretion ◽  
Serosal Side ◽  
Fluid Movement ◽  
Mucosal Side

Small sacs of everted jejunum of the hamster were incubated in sugar free bicarbonate-saline solution in vitro. Both fluid and sodium chloride moved across the wall of the intestine from mucosal to serosal side. This movement of isotonic saline solution across the intestine was inhibited anaerobically. A small bicarbonate secretion was noted in the direction of serosal to mucosal side.

A lab-in-a-droplet bioassay strategy for centrifugal microfluidics with density difference pumping, power to disc and bidirectional flow control

Lab on a Chip ◽  
2013 ◽  
Vol 13 (18) ◽  
pp. 3698 ◽  
Author(s):  
Guanghui Wang ◽  
Ho-Pui Ho ◽  
Qiulan Chen ◽  
Alice Kar-Lai Yang ◽  
Ho-Chin Kwok ◽  
...  
Keyword(s):  
Flow Control ◽  
Density Difference ◽  
Centrifugal Microfluidics ◽  
Pumping Power ◽  
Bidirectional Flow

In Vitro Plasma-Induced Endothelial Oxidative Stress and Circulating Markers of Endothelial Dysfunction in Preeclampsia: An Observational Study

2009 ◽  
Vol 28 (2) ◽  
pp. 212-223 ◽  
Author(s):  
Julien Pottecher ◽  
Olivier Huet ◽  
Vincent Degos ◽  
Marie-Pierre Bonnet ◽  
Pascale Gaussem ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Endothelial Dysfunction ◽  
Observational Study ◽  
Circulating Markers

Analysis of in vitro and in vivo bidirectional flow velocities by phase-resolved Doppler Fourier-domain OCT

2009 ◽  
Vol 156 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Julia Walther ◽  
Gregor Mueller ◽  
Henning Morawietz ◽  
Edmund Koch
Keyword(s):  
Fourier Domain ◽  
Fourier Domain Oct ◽  
Bidirectional Flow ◽  
Flow Velocities

scholarly journals 32P Observational study to compare in vitro sensitivity to therapy in patients-derived organoids (PDOs) with real life outcome: The ChemoSenPDO study

2021 ◽  
Vol 32 ◽  
pp. S370
Author(s):  
J. Garcias-Donas ◽  
Z. Dantes ◽  
B. Jiménez ◽  
M. Yagüe ◽  
A. Manjunath ◽  
...  
Keyword(s):  
Observational Study ◽  
Real Life ◽  
In Vitro Sensitivity
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