Infusion systems and methods for introducing fluids into the body within a desired temperature range
First Claim
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1. A controlled fluid infusion device comprising:
- a temperature controlled housing configured for containment of a compressible bag of fluid, wherein the housing includes a temperature altering device to alter the temperature of the fluid contained in said compressible bag to a preselected temperature, and a temperature sensor for monitoring the temperature of the fluid contained within said compressible bag;
a pressurization device positioned within said housing to exert a positive pressure on said compressible bag; and
a controller in communication with said housing for selectively activating said temperature device and said pressurization device to release a predetermined amount of fluid from said compressible bag of fluid when the temperature of the fluid reaches the preselected temperature.
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Abstract
The invention provides systems and methods for infusing a fluid into a patient. In one exemplary embodiment, a system comprises a volume of fluid and a temperature altering device in close proximity to the volume of fluid. The temperature altering device is employed to heat or cool the volume of fluid to a desired temperature. A positive pressure device is provided to place the volume of fluid under positive pressure while at the desired temperature. A transfer member is further provided to transfer at least some of the fluid into the patient while at the desired temperature.
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Citations
17 Claims
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1. A controlled fluid infusion device comprising:
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a temperature controlled housing configured for containment of a compressible bag of fluid, wherein the housing includes a temperature altering device to alter the temperature of the fluid contained in said compressible bag to a preselected temperature, and a temperature sensor for monitoring the temperature of the fluid contained within said compressible bag; a pressurization device positioned within said housing to exert a positive pressure on said compressible bag; and a controller in communication with said housing for selectively activating said temperature device and said pressurization device to release a predetermined amount of fluid from said compressible bag of fluid when the temperature of the fluid reaches the preselected temperature. - View Dependent Claims (2, 3)
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4. A fluid infusion system comprising:
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a thermal housing having a chamber configured for placement of a flexible fluid storage container formed with a transfer member for the release of fluid within said container, wherein said thermal housing includes a temperature altering device for heating or cooling the fluid contained within said container to a predetermined temperature; a positive pressure device positioned within said thermal housing that controllably expands to exert a pressurization force against said flexible fluid storage container housing to release fluid contained within said container; and a processor for controlling and monitoring the expansion of said positive pressure device within said thermal housing to provide a predetermined flow rate for the release of fluid from said flexible fluid storage container when the predetermined temperature is reached. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A portable infusion system for injecting a fluid into a patient comprising:
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an enclosed housing formed with a chamber to hold a fluid infusion bag; a temperature altering device positioned within said housing to change and to monitor the temperature of the fluid contained within said fluid infusion bag; a pressure regulation device positioned within said housing to control and to monitor the pressure of the fluid contained within said fluid infusion bag; and a control system in communication with said temperature altering device and said pressure regulation device, wherein said control system directs said pressure regulation device to pressurize the fluid within said fluid infusion bag to infuse the fluid into a patient at a controlled rate with a preselected temperature. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification