Blocked oxygen tubing

Tubing length for long-term oxygen therapy.

BACKGROUND Most patients on long-term oxygen therapy use stationary oxygen delivery systems. It is not uncommon for guidelines to instruct patients to use tubing lengths no longer than 19.68 ft (6 m) when using an oxygen concentrator and 49.21 ft (15 m) when using cylinders. However, these concepts are not based on sufficient evidence. Thus, our objective was to evaluate whether a 98.42-ft (30-...

Tygon" Roller Pump Tubing

A failure analysis was performed on Norton S-65-HL Tygon® tubing. Fatigue testing was performed on four sizes of this tubing, and essentially showed how the tubing wears out. A dynamic "life hours to failure" test, which was performed on the 3/8" internal diameter (ID) size, quantified when the tubing ruptured. Based on results of laboratory testing and the institution's clinical extracorporeal...

Tubing misconnections: normalization of deviance.

BACKGROUND Accidental connection of an enteral system to an intravenous (IV) system frequently results in the death of the patient. Misconnections are commonly attributed to the presence of universal connectors found in the majority of patient care tubing systems. Universal connectors allow for tubing misconnections between physiologically incompatible systems. METHODS The purpose of this rev...

Ureteral Catheter for Microinjection Tubing.

Electron Microscopy: Daniel C. Pease .............. 543 Incorporation of C14 From Carboxyl-labeled dl-Alanine Into the Proteins of Liver Slices: Ivan D. Frantz, Jr., Robert B. Loftfield, and Warren W. Miller ........ ...................... 544 Isolation of Avian Pneumoencephalitis (Newcastle Disease) Virus From the Yolk Sac of Four-Day-Old Chicks, Embryos, and Infertile Eggs: P. D. DeLay 545 An...

Silicone Tubing for Pharmaceutical Processing