Doctor suggested cortisone injection and on July 13 I had a shot in my shoulder. The pain lessened. I had been doing physiotherapy for 9 weeks before and after the shot. However I was at work and had to hop up over a small counter top. My life has been a severe painful nightmare since then. The pain I've been experiencing since that day is unbearable. I was not told that cortisone weakens the tendons in and around the area of the injection. The doctor gives me strong pain killers but they have side effects that I'm looking forward to.
An O-ring, also known as a packing, or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.
Rubber O-rings. When we talk about rubber o-rings, we are using the term rubber to describe a whole host of o-rings that are made from a synthetic rubber-like material called an elastomer.We are not talking about o-rings made from natural rubber.e also provide rubber o-rings in many types of elastomers including VitonÂ®, VitonÂ® Extreme ETP, KalrezÂ®, Simriz, nitrile (Buna-N), hydrogenated nitrile (HNBR), silicone, fluorosilicone, ethylene-propylene (EPR, EPDM), neoprene, polyurethane, Ethylene Propylene, and FEP encapsulated elastomers.