The i-port is an injection port system for insulin dependent people. With the i-port Injection Port Therapy (IPT) system you will no longer have to puncture the skin multiple times daily for insulin doses. One puncture every 2-3 days is all you need to do with the i-port. The i-port was created by Catherine Patton (a type 1 diabetic) and is manufactured by Patton Medical Device, LP in Austin, TX. This injection Port Therapy system comes in two different sizes 6mm i-port or 9mm i-port. Diabetes Health Supplies is your one stop source for the i-port Insulin injection port.