An<unk>  is a medical device used for the administration of insulin or other physician approved medicine into the subcutaneous tissue (the tissue layer just below the skin). The device is similar to infusion sets used by insulin pumps, except it is configured to receive a syringe instead of a tubing system. An<unk>  is usually a disposable device applied by the patient and worn for period of 3–5 days. When giving shots via an<unk> , the needle stays above the surface of the skin. Medication is delivered via a short soft cannula. An<unk>  can be used in conjunction with multiple daily<unk> s of insulin by people with diabetes. It can also be used for the subcutaneous administration of any other physician prescribed medication
Injection port
Trocar
Wound
Port 
Surgical instrument
Drain 
Surgical positions
Alternate care site