Surgery – Respiratory method or device – Ozone or ion generation
Patent
1975-07-21
1977-08-16
Crowder, Clifford D.
Surgery
Respiratory method or device
Ozone or ion generation
128214F, 128278, 128DIG12, 2223865, A61M 102, A61M 514
Patent
active
040419444
ABSTRACT:
A body fluid transfusion and displacement apparatus and method wherein the transfusion of blood, saline solutions or the like, may be maintained at an equilibrium in the patient volumetrically by means of apparatus which transfers blood out of the patient and into the patient as exactly the same volumetric rate; the apparatus having a pair of hollow needles, one of the needles being inserted into an artery, and the other of the needles being inserted into a vein; and wherein a pair of containers are separated by a deflectable member such that fluid transferred out of the patient displaces the deflectable member adjacent to one container and forces it into an area of the other container whereby the blood displaced from the patient positively acts against the deflectable member to control the delivery of fluid into the patient; the apparatus also having modifications of the flexible member, as well as a reversible pump and a vent valve and additionally, the apparatus is related to a method of transfusion displacement of body fluids relative to a patient.
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