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.
(new question added 6/18/2008). The medication is used to prevent and treat blood clots in the veins, arteries and lungs. Heparin is commonly used before certain types of surgery, including coronary artery bypass graft surgery, and in kidney patients before they undergo dialysis.new question added 6/18/2008). Heparin is one of a class of medications called anticoagulants that are commonly referred to as blood thinners. Heparin makes an anti-clotting protein in your body work better, thus decreasing the clotting ability of the blood.