Heat transfer liquid for a temperature control device for extracorporeal circulation
AssigneeLivaNova Deutschland GmbH
InventorsErwin Knott, Thomas Heckmaier, Filip De Somer
Life of this patent
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Abstract
The present application refers to a heat transfer liquid for a temperature control device for human body temperature control during extracorporeal circulation, a temperature control device, the use of heat transfer liquid for extracorporeal circulation and a method of human body temperature control using a heat transfer liquid. The head transfer liquid consists of ethylene glycol or propylene glycol at about 25 volume-percent to about 35 volume-percent, hydrogen peroxide at 0.05 volume-percent or less and sterile, filtered and de-mineralized water as rest.
Claims20
A temperature control system for human body temperature control during extracorporeal circulation, comprising:
- a temperature control liquid including sterile, filtered and demineralized water, and a disinfectant to inhibit microbial growth;
- a temperature control device adapted to heat or cool the temperature control liquid;
- at least one disinfectant sensor for measuring a concentration of the disinfectant in the temperature control liquid;
- a heat exchanger having a blood flow portion and a temperature control liquid flow portion, the heat exchanger configured to alter the temperature of blood flowing through the blood flow portion;
- and
- a computer coupled to the disinfectant sensor, the computer configured to indicate a measured concentration of disinfectant in the temperature control liquid, and to indicate a disinfection status of the temperature control liquid;
- wherein the temperature control system is adapted to heat or cool the heat transfer liquid based on an input provided by a user to the computer.
A temperature control system for human body temperature control during extracorporeal circulation, comprising:
- a temperature control liquid including sterile, filtered and demineralized water, and a disinfectant to inhibit microbial growth, wherein the disinfectant includes both hydrogen peroxide and ethylene glycol or propylene glycol;
- a temperature control device adapted to heat or cool the temperature control liquid;
- at least one disinfectant sensor for measuring a concentration of the disinfectant in the temperature control liquid;
- a heat exchanger having a blood flow portion and a temperature control liquid flow portion, the heat exchanger configured to alter the temperature of blood flowing through the blood flow portion;
- and
- a computer coupled to the disinfectant sensor, the computer configured to indicate a measured concentration of disinfectant in the temperature control liquid, and to indicate a disinfection status of the temperature control liquid, wherein the disinfection status includes a recommendation to add more disinfectant or to exchange the temperature control liquid;
- wherein the temperature control system is adapted to heat or cool the heat transfer liquid based on an input provided by a user to the computer.
Dependencies are inferred from the claim text.