https://www.selleckchem.com/products/epacadostat-incb024360.html 05 and 0.001, respectively. However, the model could not stratify countries in total deaths/cases and total deaths per population.The vein-viewer is a new revolution in the health industry. In fact, it is one of the must-have gadgets for any medical professional. The vein-viewer is device that helps to access easily veins when trying to collect a blood sample or for administering Intravenous (IV) cannulation. It is also an aid for dermatologist/aesthetic physician to access client's veins for sclerotherapy procedures or avoiding veins in cosmetic procedures. The vein-viewer is highly applicable where vascular positioning is really difficult; examples while canulating infants, obese, hairy/dark skins, dialysis/cancer patients etc. In addition, frequent attempts affect patients, causing trauma and subcutaneous haemorrhage. As palm/finger vein patterns are unique and complex, difficult to duplicate or steal as it is beneath the skin. So, in this Covid19 pandemic time, the vein-viewer finds applications in the secure non-contact bio-metric authentications for secure banking and attendance registering system to identify an individual. In this article I am trying to explain the design overview of vein-viewer system, its design challenges, cost aspects, its availability and also sharing a few inputs for the new compact, low-cost design and implementation.This paper sets out the rationale and design for a more physiologically representative bladder/urethral model than the current rigid funnel industry standard. We suggest this flexible model can better serve as a basis for evaluating new catheters. We investigated the parameters and the validation tests required to construct and test with more flexible materials. The protocol includes static and impact force tests, while measuring internal retention balloon pressure. We have designed a flexible elastomer bladder floor and urethral model and tested it with a Fo