초록 ▼

A system for warming blood or other liquids to body temperature and maintaining the liquid at that temperature for infusion into a patient. The system is characterized by a cylindrical condensation liquid heating chamber having an inner tubular air heater. A cylindrical heat retaining shell surround

A system for warming blood or other liquids to body temperature and maintaining the liquid at that temperature for infusion into a patient. The system is characterized by a cylindrical condensation liquid heating chamber having an inner tubular air heater. A cylindrical heat retaining shell surrounds and is spaced from the outer wall of the heating chamber. A flat flexible heat exchanging liquid warming envelope is held clamped between the outer wall of the heating chamber and the surrounding shell. An external outer elongated air hose is connected at one end to a warmed air outlet from the air heater and extends to the patient and surrounds an inner elongated warm liquid flow line to maintain the temperature of the liquid.

대표청구항 ▼

[ I claim:] [1.] A system for warming blood or other liquids to body temperature for infusion into a patient, said system comprising:A) a blood warmer apparatus having a closed elongated annular cylindrical condensation heating chamber with an outer cylindrical heat exchanging wall and an inner spac

[ I claim:] [1.] A system for warming blood or other liquids to body temperature for infusion into a patient, said system comprising:A) a blood warmer apparatus having a closed elongated annular cylindrical condensation heating chamber with an outer cylindrical heat exchanging wall and an inner spaced apart tubular heat exchanging wall, a cylindrical heat retaining shell closely spaced from and surrounding said heating chamber, and a flat flexible heat exchanging liquid warming envelope held clamped between the outer wall of said heating chamber and surrounding shell,B) a tubular air heating unit housed within the inner tubular wall of the heating chamber including:1) a cool air inlet at one end of said unit,2) a plurality of heat transfer fins extending longitudinally and radially inward from the inner tubular wall of the heating chamber,3) a fan for conducting air from said inlet past said fins, and4) a warmed air outlet from said housing,C) an external outer elongated air hose connected at one end to said warmed air outlet and extending to the patient, said air hose adapted to receive an inner elongated liquid flow line therein.