Blood loss measurement
First Claim
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1. A method of measuring loss of blood suffered by a patient during a surgical procedure including the steps of:
- (a) measuring the level of hemoglobin in the blood of the patient prior to the surgical procedure;
(b) collecting the blood and other matter from a surgical wound during the surgical procedure;
(c) measuring the level of hemoglobin in the blood collected from the surgical wound;
(d) comparing the level of hemoglobin in the blood of the patient prior to the surgical procedure with the hemoglobin level in the blood collected from the surgical wound during the surgical procedure; and
(e) determining the volume of collected blood from the comparison.
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Abstract
Apparatus and method for measuring blood loss by collecting a blood sample from a patient prior to a surgical procedure, measuring the level of hemoglobin in that blood sample, collecting blood and pathological fluid removed from the patient during the surgical procedure; measuring the level of hemoglobin in the blood collected from the surgical procedure; comparing the level of hemoglobin in the blood collected prior to the surgical procedure with the level of hemoglobin in the blood after the surgical procedure and employing that comparison to determine the volume of blood lost during the surgical procedure.
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Citations
14 Claims
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1. A method of measuring loss of blood suffered by a patient during a surgical procedure including the steps of:
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(a) measuring the level of hemoglobin in the blood of the patient prior to the surgical procedure; (b) collecting the blood and other matter from a surgical wound during the surgical procedure; (c) measuring the level of hemoglobin in the blood collected from the surgical wound; (d) comparing the level of hemoglobin in the blood of the patient prior to the surgical procedure with the hemoglobin level in the blood collected from the surgical wound during the surgical procedure; and (e) determining the volume of collected blood from the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for measuring loss of blood suffered by a patient during a surgical procedure, said apparatus comprising:
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(a) a first chamber for receiving a sample of blood of the patient prior to performance of the surgical procedure; (b) a second chamber for receiving blood from a surgical wound of the patient; (c) a third chamber for receiving used swabs employed in the surgical procedure, said third chamber including means for extracting blood from said swabs; (d) means for measuring the level of hemoglobin in the blood collected from the patient prior to the surgical procedure; (e) means for measuring the level of hemoglobin in the blood collected from the surgical wound and from the swabs; and (f) means for comparing the level of hemoglobin in the blood collected from the patient prior to the surgical procedure with the level of hemoglobin in the blood collected from both the surgical wound and the swabs for determining the amount of blood loss resulting from the surgical procedure. - View Dependent Claims (12, 13, 14)
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Specification