
    Design a function to calculate the effective contact surface area of a cylindrical medical sensor patch, excluding the top and bottom faces, to ensure optimal skin adhesion and continuous vital sign monitoring. The sensor patch has a radius r determining its circular coverage and height h containing the monitoring components.
    

    
def lateralsuface_cylinder(r, h):
    """
    Design a function to calculate the effective contact surface area of a cylindrical medical sensor patch, excluding the top and bottom faces, to ensure optimal skin adhesion and continuous vital sign monitoring. The sensor patch has a radius r determining its circular coverage and height h containing the monitoring components.
    

    """
def lateralsuface_cylinder(r, h):
    """
    Design a function to calculate the effective contact surface area of a cylindrical medical sensor patch, excluding the top and bottom faces, to ensure optimal skin adhesion and continuous vital sign monitoring. The sensor patch has a radius r determining its circular coverage and height h containing the monitoring components.
    

    """
    lateralsurface = 2 * 3.1415 * r * h
    return lateralsurface