Process and apparatus for collecting blood of a patient for autotransfusion
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United States of America Patent
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Jul 28, 1992
Issued Date -
N/A
app pub date -
Dec 13, 1990
filing date -
Feb 18, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process and apparatus is provided for collecting a patient's blood for re-use of autotransfusion, in which blood is collected from a patient and delivered for treatment in a container, outside the patient, for later re-use or retransfusion to the patient. The treatment given to the blood before autotransfusion may reside in treating the blood to resist coagulation, treating the blood for removal of fats from the blood, or in removing other substances from the blood. The treatment, insofar as it is used to cause the blood to resist coagulation, includes withdrawing calcium ions from the blood and replacing them with other ions in sufficiently small quantities that the amount of other substance that is added to the blood is not harmful, preferably by passing the blood through a bed of ion exchange polymeric resin material. Insofar as fats are moved from the blood, the treatment includes collecting blood from the patient and wicking fats from the blood by means of a hydrophobic lipophilic wick. Other treatments to the blood, which accomplish the removal of other substances from the blood will also be apparent.
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