Physiological fluid warmer

Details Physiological fluid warmer Physiological fluid warmer

1990-08-16

1993-10-19

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

607104, A61M 500

Patent

active

052540944

ABSTRACT:
A disposable physiological fluid warmer formed as a small compact box which may be attached to a patient's arm. The warmer includes two chambers within the box containing a heat exchanger element constructed from a continuous length of stainless steel tubing in the form of two parallel coils which are connected to one another by a straight length of tubing. A passage is provided along one side of the box between the chambers such that a warming fluid may be introduced through an aperture in the box into one of the chambers, flow into the other chamber, and then exit the warmer through another aperture in the box. A physiological fluid to be warmed is supplied to the coils through a first flexible plastic inlet tube and discharged for infusion into a patient through a second flexible plastic tube. The second tube has a length of less than one foot in order to minimize the amount of heat lost from the fluid as it travels from the warmer to the patient.

REFERENCES:
patent: 3612059 (1971-10-01), Ersek
patent: 3881483 (1975-05-01), Sausse
patent: 4047563 (1977-10-01), Kurata
patent: 4158693 (1979-06-01), Reed et al.
patent: 4177816 (1979-12-01), Torgeson
patent: 4293762 (1981-10-01), Ogawa
patent: 4531941 (1985-07-01), Zasuwa
patent: 4623333 (1986-11-01), Fried
patent: 4705505 (1987-11-01), Fried
patent: 4759749 (1988-07-01), Verkaart
patent: 4787833 (1988-11-01), Kroyer
patent: 4846177 (1989-07-01), Leonard
patent: 4878537 (1989-11-01), Verkaart
Ahuja et al., Phys. Med. Biol., Sep. 1978, vol. 23, No. 5 pp. 937-951.

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