Manual processing systems and methods for providing blood components conditioned for pathogen inactivation
View Patent ↗Systems and methods manually process blood and blood components in sterile, closed environments, which further condition the blood components for subsequent pathogen inactivation processes. The systems and methods mate the manual collection of random donor platelet units with the creation of larger therapeutic doses of platelets targeted to undergo pathogen inactivation prior to long term storage and/or transfusion.
1. A manual closed blood collection system comprising
a primary container sized and configured to hold a unit of whole blood drawn from an individual donor for centrifugal separation,
a platelet unit container downstream of said primary container and sized and configured to hold a platelet concentrate and a first volume of plasma centrifugally separated from the unit of whole blood,
a plasma unit container sized and configured to hold a second volume of plasma centrifugally separated from the unit of whole blood,
an auxiliary container downstream of said platelet container,
a synthetic platelet additive solution carried within the auxiliary container in an at least an amount sufficient for mixing with the platelet concentrate and first volume of plasma to achieve a predetermined ratio of additive solution and plasma and provide a platelet concentrate mixture conditioned for a pathogen inactivation treatment,
the synthetic platelet additive solution comprising an aqueous solution comprising sodium chloride, sodium citrate, sodium acetate, and sodium phosphate for conditioning the platelet concentrate mixture for pathogen inactivation in the presence of a selected pathogen inactivating compound selected from a group comprising psoralens, methylene blue, dimethyl-methylene blue, riboflavin, or PEN 110 , or combinations thereof, tubing integrally coupling the primary container, the platelet unit container, the plasma unit container, and the auxiliary container to form a sterile, closed blood processing system,
an in-line filter adapted to remove leukocytes from separated platelets,
a filter by-pass branch extending around said filter; and
a one-way valve provided in said by-pass branch;
wherein said filter and one-way valve are located between said platelet container and said auxiliary container and allow for direct flow between said platelet and auxiliary containers.
2. A manual blood collection system according to claim 1
wherein, after processing in the sterile, closed blood processing system, the platelet concentrate mixture is held by the platelet unit container.
3. A manual blood collection system according to claim 2
wherein the platelet unit container comprises an appendage coupled to transfer tubing to transfer the platelet concentrate mixture from the platelet unit container to a selected destination.
4. A manual blood collection system according to claim 3
wherein the appendage couples to the transfer tubing to form an essentially sterile connection.
5. The manual closed blood collection system of claim 1 further comprising,
a) a flow path having one end terminating in a donor needle and another end communicating with an inlet of said primary container;
b) a flow path having one end communicating with an outlet of said primary container and another end communicating with a first connector;
c) a flow path having one end communicating with said first connector and another end communicating with a second connector that is downstream of said first connector;
d) a flow path having one end communicating with said second connector and another end communicating with a third connector that is downstream of said second connector,
e) wherein said one-way valve and in-line filter are in flow communication with and located between said third connector and said auxiliary container.