Avoiding blood trauma is a concern when pumping cardiac patients’ blood during surgery. With this in mind, a medical-device manufacturer decided to reuse the flow-path geometry of an existing arterial filter that had been proven safe and effective in many patients. The problem was ensuring that the as-built arterial filter geometry truly matched the complex computer-aided design (CAD) model that the company planned to use as the starting point for the new design.Re-using geometry for a new filter
Veins carry blood from all organs of the body back to the heart. A number of conditions can occur as a result of localized inflammation and clotting of veins, particularly in the legs. Deep vein thrombosis is the term often used for a blood clot that develops in the deep veins of the legs. There’s some risk that a part of the clot will break loose and travel in the bloodstream to lodge in the lung, which is a condition known as a pulmonary embolus. The mainstay of treatment is anticoagulant therapy using prescription drugs, but in some circumstances a venous filter is inserted to prevent blood clots from reaching the lung.

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