A personal experience with application of ARIZ-85v to solving a real life problem

Alex Acosta,
Barcelona, Spain.
e-mail: alex86_mail@yahoo.com

The problem: Medical gloves are disposable gloves used during medical examinations and procedures that help prevent contamination between caregivers and patients. Medical gloves are made of different polymers including latex, nitrile rubber, vinyl and neoprene.

Sharp objects such as scalpels and suture needles are a necessity of surgery. A risk that these objects carry is the accidental injury of surgical staff. Minor cuts and pin pricks sound relatively minor, but exposure to a patient’s blood – which often contaminates these objects – can carry serious risks. Ideas are needed for alternative materials or techniques to produce properties of materials that are more puncture resistant retain the tactile sensitivity of latex gloves.


In principle, we can apply the standards 1.2.1 or 1.2.2… from the analysis we know that we need to maintain the softness of the glove, so we can think about liquids, colloids, gels, foams, voids or similar substances for S3, but no good solution appears…

Reviewing more standards, e.g. 5.3.2 (use of substances capable of changing their phase state depending on work conditions), reminded me a TV experiment with non-Newtonian fluids, where a fluid upon application of a mechanical force turned from soft to hard.

Searching in patent database, I found this: https://www.google.com/patents/CA2662745A1?cl=en&dq=non+newtonian+surgery+glove&hl=ca&sa=X&ei=kFGLU_D7IIuO7QbpnYDICw