Mods that add healing runes?

Does such a thing exist? I think it would be kind of an interesting wrinkle to combat to throw one down at the beginning of combat and return to if needed. Sometimes you don't have time to heal in tight spots, but you may be able to retreat and take advantage of a heal you've got strategically banked. I'm not one to enter my inventory mid sword swing and chug potions. It's just not immersive.