155
ANESTHESIA AND ANALGESIA . . . Current Researches VOL.54, NO. 1, JAN.-FEB.,1975
EDWIN S. MUNSON ASSOCIATE EDITOR.
An Inexpensive BlGod Warmer C. L. WALTEMATH, M.D.
P.
H. ERBGUTH, M.D. Portland, Oregon*
OR THE past 2 years, we have used 2.5-L. laboratory .serologic baths (figure) as bIood warmers. This unit has proved reliable in maintaining bath temperature within 0.5" C. of a calibrated setting. Though it is relatively low priced, we have had no equipment failure. One unit was in constant operation for 2 months during laboratory use. There is sufficient capacity to warm two blood-transfusion lines simultaneously, yet it is of convenient size (15 x 17 x 25 cm.) and weight (3 kg.). Tests for current leak, during routine operating-room electrical hazard and ground testing, have always been negative.
F
The only deficiency in this unit is lack of a thermo-regulator that will, independent of the thermostat, shut off the unit when bath temperature exceeds 37" C . While none of our units has ever exceeded its preset temperature, the bath temperature, using a mercury-in-glass (supplied with the unit) or telethermometer, should be continuously monitored. The unit described (model 81) can be obtained for approximately $125 from Fisher Scientific, Pittsburgh, Pennsylvania. *Department of Anesthesiology, University of Oregon Medical School, Portland, Oregon 97201. Paper received: 4/22/74 Accepted for publication: 5/17/74
...
ANESTHESIA AND ANALGESIA . . . Current Researches VOL.54, NO. 1, JAN.-FEB.,1975
EDWIN S. MUNSON ASSOCIATE EDITOR.
An Inexpensive BlGod Warmer C. L. WALTEMATH, M.D.
P.
H. ERBGUTH, M.D. Portland, Oregon*
OR THE past 2 years, we have used 2.5-L. laboratory .serologic baths (figure) as bIood warmers. This unit has proved reliable in maintaining bath temperature within 0.5" C. of a calibrated setting. Though it is relatively low priced, we have had no equipment failure. One unit was in constant operation for 2 months during laboratory use. There is sufficient capacity to warm two blood-transfusion lines simultaneously, yet it is of convenient size (15 x 17 x 25 cm.) and weight (3 kg.). Tests for current leak, during routine operating-room electrical hazard and ground testing, have always been negative.
F
The only deficiency in this unit is lack of a thermo-regulator that will, independent of the thermostat, shut off the unit when bath temperature exceeds 37" C . While none of our units has ever exceeded its preset temperature, the bath temperature, using a mercury-in-glass (supplied with the unit) or telethermometer, should be continuously monitored. The unit described (model 81) can be obtained for approximately $125 from Fisher Scientific, Pittsburgh, Pennsylvania. *Department of Anesthesiology, University of Oregon Medical School, Portland, Oregon 97201. Paper received: 4/22/74 Accepted for publication: 5/17/74
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