Patent ID: 7828831
Filing Date: 2010-11-09
Classification: A61F

Abstract:
1. A temperature controlled fluid therapy system comprising: a reservoir for containing fluid at a first temperature; a pump disposed within the reservoir and having an intake port and an output port, the pump for pulling the fluid from the reservoir into the intake port and forcing the fluid through the output port, the pump having a motor for driving the pump; a watertight blanket having an internal space through which the fluid at a second temperature may be circulated at a fluid flow rate, and having an outflow port and an inflow port that are in fluid communication with the internal space; an output conduit having a first end in fluid communication with the output port of the pump and a second end in fluid communication with the inflow port of the blanket; an intake conduit having a first end in fluid communication with the reservoir and a second end in fluid communication with the outflow port of the blanket; a first temperature sensor disposed within the reservoir for generating a first temperature signal related to the first temperature; a second temperature sensor disposed adjacent the blanket for generating a second temperature signal related to the second temperature; one or more analog-to-digital converters for converting the first and second temperature signals into digital signals; a power supply for providing power at least to the motor of the pump; and a microprocessor controller for receiving the digital signals corresponding to the first and second temperature signals, for determining based on the first temperature signal whether the system is to operate in a hot therapy mode or a cold therapy mode, for executing a first set of instructions if the system is to operate in the hot therapy mode and for executing a second set of instructions if the system is to operate in the cold therapy mode, and for controlling the speed of the motor based on the first or second set of instructions and on the first and second temperature signals, thereby controlling the fluid flow rate through the blanket and the temperature of the fluid in the blanket.