The DPIP Deltaphase® Isothermal Pad (8"x6") offers a sophisticated, self-regulating approach to body temperature stabilization, maintaining animals or biological cultures at a constant 37°C for several hours. By utilizing a specific thermodynamic phase-change principle rather than traditional electronics, these pads provide a steady heat source that is physically incapable of overheating. This unique design requires no electricity, wires, or feedback controllers, making it an ideal solution for sensitive NMR environments where electrical interference or signals must be eliminated. Whether integrated directly into a Thermo Controlled Surgery Platform or used as a standalone warming source, the Deltaphase pad ensures a safe, interference-free, and stable thermal environment for high-precision research.
The Deltaphase Isothermal Pad is based on the thermodynamic principle that a heat releasing phase change is isothermal, that is: that it occurs at constant temperature. A unique chemical solution is contained within a durable pouch. At room temperature this solution is in solid form. When heated to 39 degrees the solution becomes fluid. In this state, the pad is activated and ready for use. When an animal (or any cooler object) is placed in contact with the activated pad, heat leaves the solution as it undergoes a phase change back to the solid form. In this phase change, over 30 calories of heat are released per gram of solution, even though the temperature is constant. The pad remains isothermal until all the liquid phase has solidified. Only then does its temperature fall. The transition temperature has been preset to 39 degrees so that a small temperature gradient always exists for heat flow from pad to animal.
