Method and apparatus for use in preparation of fibrinogen from a patient's blood
OwnerRobert Alterbauminventor
Life of this patent
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Abstract
In the preparation of concentrated fibrinogen extracted from the blood for making fibrin glue for use, e.g., as tissue adhesive or intra-arterial embolizing agent, the blood and subsequently obtained plasma are separated by centrifuging. In order to efficiently and rapidly prepare a small quantity of fibrinogen from a patient's own blood to be administered to the same patient during imminent surgery, an arrangement is disclosed wherein the blood or plasma to be centrifuged is transferred to a flat bag or packet which is then fitted into an insert fixture assembly which reliably secures the packet in the centrifuge cup in a suitable orientation.
Claims8
A method for use in the autologous preparation of fibrin glue wherein a patient's blood is separated in a centrifuge having cylindral cups pivotally mounted to a rotor to obtain plasma and wherein the plasma is separated in the centrifuge to produce concentrated fibrinogen, comprising the steps of:
- (A) transferring the blood or plasma into a substantially flat packet;
- (B) fixing the packet containing the blood or plasma in a recess of a substantially cylindrical insert fixture assembly;
- (C) inserting said cylindrical-shaped insert fixture assembly in a cup of the centrifuge having a complementary cylindrical shape so that the insert fixture assembly is held snugly within said centrifuge cup;
- (D) centrifuging the blood or plasma contained within said packet fixed in said insert fixture assembly held in said centrifuge cup to separate the blood or plasma into components;
- and
- (E) forming fibrin glue from one of said separated components.
Dependencies are inferred from the claim text.