Preheat oven to 350°F. Line an 8x8-inch baking dish wish parchment paper or tin foil, leaving an overhang. Spray paper or foil with nonstick cooking spray.
In a small saucepan set over low heat cook the caramels with the heavy cream until completely smooth, stirring often.
In a large bowl combine butter, brown sugar, flour, oats, baking soda, and salt. Press half of the oatmeal mixture into the bottom of the prepared baking dish. Bake for 10 minutes.
Remove dish from oven and sprinkle chocolate chips evenly over oatmeal crust. Pour caramel evenly over chocolate chips. Crumble remaining oatmeal mixture over caramel. Return to oven and bake for an additional 15 to 20 minutes, or until the edges are lightly browned.
Let carmelitas cool completely in pan on a wire rack (this may take over an hour). Cut into 16 squares and serve at room temperature.