Apparatus for controlledly warming low flow rate infusates

Details Apparatus for controlledly warming low flow rate infusates Apparatus for controlledly warming low flow rate infusates

1997-11-25

2000-11-14

Bockelman, Mark

Surgery

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

Treating material introduced into or removed from body...

219687, A61F 712

Patent

active

061463590

ABSTRACT:
Infusate warming apparatus comprises a housing defining an internal cavity. A lossy asymmetric transmission line is situated in the housing which transmission line includes an elongated electrical conductor having opposite ends and a conduit for conducting infusate which is highly absorptive to electromagnetic energy of a first frequency through the housing in close proximity to the conductor. A connector extends into the housing for coupling an external electromagnetic signal of the first frequency to one end of the conductor so as to subject the infusate to an energy field which heats the infusate. A temperature sensor for sensing the infusate temperature and controlling the signal to maintain a constant infusate delivering temperature is also disclosed.

REFERENCES:
patent: 4680445 (1987-07-01), Ogawa
patent: 5245693 (1993-09-01), Ford et al.
patent: 5381510 (1995-01-01), Ford et al.
patent: 5437635 (1995-08-01), Fields et al.
patent: 5690614 (1997-11-01), Carr et al.

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