Self-opening style

SOS self-opening style (bag) STC stampable thermoplastic composite... 

Although noncompliance is common in almost all treatments, the issue of noncompliance in respiratory disease is particularly complex. First, treatment for respiratory disease involves inhalers, and problems with technique lead to unintentional noncompliance which may not occur in other diseases. Intentional and unintentional noncompliance therefore need to be contrasted. Second, recommendations for care can vary between prescribing physicians. Not only are variations possible within the guidelines, but also the way the doctor communicates and advises patients is very much open to the doctor s own judgment and style. In particular the degree to which the patient is empowered to self-manage may vary between physicians. A patient who is noncompliant with one set of instructions may be compliant with another. Third, in... 

A check valve is self-actuating and is designed to check reversal of flow. Fluid flow in the desired direction opens the valve reversal of flow closes it. There are three basic styles of check valves (1) swing check, (2) hft check, and (3) butterfly check. 

---