Heparain-bulking agent compositions and methods thereof
First Claim
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1. A method of preparing a heparin-bulking agent composition, the method comprising:
- providing a heparin component and at least one bulking agent;
dissolving the heparin component and the at least one bulking agent in a solution to form a heparin-bulking agent formulation;
drying the heparin-bulking agent formulation to form a heparin-bulking agent composition having a solid mass, the heparin component comprising about 3% to about 40% by weight of the solid mass and intermixed with the bulking agent comprising about 60% to about 97% by weight of the solid mass; and
grinding the solid mass of the heparin-bulking agent composition to a particulate size having an X10 and X90 value particle size distribution range between about 35 microns and about 400 microns such that the heparin-bulking agent composition comprises a free-flowing powder that is readily dissolvable upon contact with a blood sample in under 10 seconds.
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Abstract
A free-flowing anti-coagulant powder composition, the anti-coagulant composition containing heparin and a bulking agent that is lyophilized or spray dried and ground into a powder. The powdered anti-coagulant composition can be dry filled into syringes and other blood collections systems for rapid dissolution and mixing with collected blood sample without agitation of the container. The formulation may also retain a portion of the initial moisture, which may improve the shelf life and stability of the composition.
30 Citations
42 Claims
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1. A method of preparing a heparin-bulking agent composition, the method comprising:
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providing a heparin component and at least one bulking agent; dissolving the heparin component and the at least one bulking agent in a solution to form a heparin-bulking agent formulation; drying the heparin-bulking agent formulation to form a heparin-bulking agent composition having a solid mass, the heparin component comprising about 3% to about 40% by weight of the solid mass and intermixed with the bulking agent comprising about 60% to about 97% by weight of the solid mass; and grinding the solid mass of the heparin-bulking agent composition to a particulate size having an X10 and X90 value particle size distribution range between about 35 microns and about 400 microns such that the heparin-bulking agent composition comprises a free-flowing powder that is readily dissolvable upon contact with a blood sample in under 10 seconds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An anti-coagulant comprising:
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a plurality of particles of a heparin-bulking agent composition, each of the plurality of particles of the heparin-bulking agent composition having a heparin component intermixed with a bulking agent component, wherein the plurality of particles of the heparin-bulking agent composition are ground into a free-flowing powder adapted for use with a powder filling apparatus;
wherein the plurality of particles of the heparin-bulking agent composition have an X10 and X90 value particle size distribution range between about 35 microns and about 400 microns;wherein a predetermined amount of the free-flowing powder is readily dissolvable within a blood sample in under 10 seconds; and wherein the heparin component comprises about 3% to about 40% by weight of a solid content of each of the plurality of particles of the heparin-bulking agent composition and the bulking agent comprises about 60% to about 97% by weight of the solid content of each of the plurality of particles of the heparin-bulking agent composition. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A blood collection device, comprising:
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a container having an internal volume capable of receiving a blood sample; and a predetermined amount of a free-flowing powder of an anti-coagulant loaded into the internal volume of the container, the anti-coagulant comprising a heparin-bulking agent composition, the heparin-bulking agent composition having a heparin component intermixed with a bulking agent component, wherein the free-flowing powder comprises a plurality of particles having an X10 and X90 value particle size distribution range between about 35 microns and about 400 microns, wherein the predetermined amount of the free-flowing powder is readily dissolvable within a blood sample in under 10 seconds, and wherein the heparin component comprises about 3% to about 40% by weight of a solid content of each of the plurality of particles of the heparin-bulking agent composition and the bulking agent comprises about 60% to about 97% by weight of the solid content of each of the plurality of particles of the heparin-bulking agent composition. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of collecting a blood sample from a patient, the method comprising:
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providing a container having an internal volume capable of receiving a blood sample; loading a predetermined amount of an anti-coagulant powder into the internal volume of the container, the anti-coagulant powder comprising a heparin-bulking agent composition having a heparin component intermixed with at least one bulking agent component, wherein the free-flowing powder comprises a plurality of particles having an X10 and X90 value particle size distribution range between about 35 microns and about 400 microns, and wherein the heparin component comprises about 3% to about 40% by weight of a solid content of each of the plurality of particles of the heparin-bulking agent composition and the bulking agent comprises about 60% to about 97% by weight of the solid content of each of the plurality of particles of the heparin-bulking agent composition; drawing the blood sample from the patient into the internal volume of the container; and allowing the anti-coagulant powder to dissolve within the blood sample, wherein the predetermined amount of the free-flowing powder is readily dissolvable within the blood sample in under 10 seconds. - View Dependent Claims (38, 39, 40, 41, 42)
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Specification