Patent ID: 7176419
Filing Date: 2007-02-13
Classification: A61B,A61F,A61G

Abstract:
1. A heating pad system comprising: a lower foam pad; an upper foam pad having an upper surface; a thermal-electric heating element sandwiched between the upper and lower foam pads; a power unit for providing electrical power to the thermal-electric heating element, the power unit including a control panel having at least one temperature selector, the temperature selector for selecting at least one heating pad temperature; a first temperature sensor for measuring heating pad temperatures, wherein at least a portion of the first temperature sensor is positioned adjacent to the upper surface of the upper foam pad, and wherein the power unit includes a temperature control circuit coupled to the first temperature sensor to control electrical power provided to the thermal-electric heating element based on a selected heating pad temperature and a measured heating pad temperature; and a second temperature sensor for measuring heating pad temperatures, wherein at least a portion of the second temperature sensor is positioned adjacent to the upper surface of the upper foam pad, and wherein the power unit includes a temperature display for displaying measured heating pad temperatures received from the second temperature sensor.