System and method for obtaining a cellular sample enriched with defined cells such as platelet rich plasma (prp)
AssigneeEstar Technologies Ltd
InventorAaron ESTERON
Life of this patent
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Abstract
A system for obtaining plasma enriched in platelets is disclosed which is closed to the atmosphere. The system includes: a collection tube containing an anticoagulant portion and a separation gel; a first collection syringe adapted to collect a portion of fluid relatively depleted in platelets from said collection tube after centrifugation; and a second collection syringe adapted to collect plasma enriched in platelets from said collection tube after centrifugation, said second collection syringe further comprising a filter unit adapted to filter cells included in said plasma enriched in platelets.
Claims14
A system for collecting plasma enriched in platelets or a cellular fraction enriched in stem cells, comprising:
- a collection tube having at least one stopper for maintaining said collection tube closed to the atmosphere and a separation gel with a density of 1.04 to 1.09 g/cm3;
- a syringe adapted to remove platelet poor plasma (PPP) or a cellular fraction depleted in stem cells from said collection tube after centrifugation
- a collection syringe adapted to collect plasma enriched in platelets or a cellular fraction enriched in stem cells from said collection tube after centrifugation, said collection syringe comprising a filter unit adapted to filter cells included in said plasma enriched in platelets or cellular fraction enriched in stem cells;
- and
- at least one needle for attaching to the collection syringe and adapted to be received in the collection tube while said collection tube remains closed to the atmosphere.
A method for obtaining a cellular sample, comprising:
- filling a collection tube having at least one stopper for maintaining the collection tube closed to the atmosphere and a separation gel comprising polyacrylic, polyolefin or polyester polymer with whole blood or a first cellular fraction that includes stem cells;
- centrifuging the collection tube to separate red blood cells from plasma enriched in platelets, or to separate a fraction depleted in stem cells from a fraction enriched in stem cells;
- and
- collecting with a collection syringe a fraction enriched in platelets or enriched in stem cells, wherein the collection syringe has a filter incorporated therein.
Dependencies are inferred from the claim text.