Before the limited hardware warranty expires, please contact Microsoft Surface Support at 1-866-425-8880 (or replacement number(s) provided by Microsoft) or choose from the.standard business hours. The limited hardware warranty terms for your Microsoft Surface hardware unit are located in the Surface Order Form Terms and Conditions that you agreed to as part of the purchase of your Surface hardware unit.
heparin lock. A device attached to an intravenous catheter to prevent it from clotting. It is used for intermittent administration of fluids or medication. See: heparin lock flush solution; venous access device.
The port can be left accessed for as long as required. The port is covered in a dressing to protect the site from infection and to secure the needle in position. If a port is used infrequently, it may be necessary to access the port, flush it with saline, and inject a new heparin lock to prevent clotting between uses. Alternatives