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US 6,398,972 B1Granted
Method for producing platelet rich plasma and/or platelet concentrate
AssigneeHarvest Technologies Corporation
InventorsLou Blasetti, Sherwin V. Kevy
Life of this patent
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AssigneeHarvest Technologies Corporation
InventorsLou Blasetti, Sherwin V. Kevy
Estimating the term…
Platelet rich plasma and/or platelet concentrate is prepared by placing whole blood in a first chamber of a sterile processing disposable having two chambers. The processing disposable is subjected to a first centrifugation to separate red blood cells, and the resulting platelet rich plasma supernatant is decanted to the second chamber. The processing disposable is subjected to a second centrifugation to concentrate platelets. A volume of the platelet poor plasma supernatant in the second chamber is removed, and the platelets are re-suspended in the remaining plasma. The second chamber may contain anticoagulant to preclude aggregation of the platelets.
A method for producing a physiological product of selected composition comprising the steps of:
A method for making platelet rich plasma at point of care comprising the steps of placing blood in a first chamber of a sterile container having first and second chambers, wherein at least said second chamber is rigid and of defined volume, subjecting said container and blood to centrifugation to provide a supernatant comprising platelet rich plasma, transferring said platelet rich plasma from said first chamber to said second chamber, subjecting said platelet rich plasma to centrifugation to provide separated platelets and platelet poor plasma, removing a portion of said platelet poor plasma from said second chamber and leaving a remaining portion of said platelet poor plasma and said separated platelets in said second chamber, and suspending said separated platelets in said remaining portion of said platelet poor plasma to obtain said platelet rich plasma.
Dependencies are inferred from the claim text.