Medical Grade Silicone is utilized in manufacturing of catheters, condoms, drains, feeding tubes, implants tubing, menstrual cups, seals and gaskets, and syringe pistons. Silicone drains have existed for several years. These drains or catheters could be either closed or open ended. Closed ends tend to be used when the patient has been transported by air to a medical facility, but open-ended types may be used if the in-patient is intubated or must undergo surgery. These kinds of catheters change from feeding tubes in they have no feeding tube.