Plasma extraction apparatus
First Claim
1. A system for extracting plasma from blood received from a blood supply, the system comprising:
- a housing;
an inlet opening in the housing for receiving the blood;
a blood flow path in the housing beginning at the inlet opening and terminating at one of a blood flow path outlet and a blood flow path compression chamber for facilitating a blood flow in the blood flow path;
a filtration chamber within the housing for receiving the blood from the inlet opening, the filtration chamber comprising a membrane separating the blood flow path from a plasma compartment, wherein the blood flow path intersects with the filtration chamber at a fluid intersection;
a plasma flow path beginning at the plasma compartment and terminating at a manually operable plasma flow path compression chamber for pulling the plasma across the membrane from the blood flow path to the plasma compartment, wherein the plasma flow path compression chamber defines a cavity, at least a portion of the cavity being located within the housing.
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Accused Products
Abstract
A system that is suitable for extracting plasma from blood received from a blood supply is provided. The system comprises a housing, an inlet opening for receiving the blood, a filtration chamber comprising a membrane, and a plasma compartment. The membrane forms a barrier between the blood and the plasma extracted from the blood, and the plasma compartment collects the plasma extracted from the blood. In some embodiments, the system comprises a plasma flow path compression chamber for pulling plasma across the membrane. In some embodiments, the system comprises a blood flow path compression chamber for facilitating blood flow. Some embodiments of the system further comprise means for measuring plasma and blood analytes using spectroscopic and biosensor techniques.
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Citations
26 Claims
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1. A system for extracting plasma from blood received from a blood supply, the system comprising:
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a housing; an inlet opening in the housing for receiving the blood; a blood flow path in the housing beginning at the inlet opening and terminating at one of a blood flow path outlet and a blood flow path compression chamber for facilitating a blood flow in the blood flow path; a filtration chamber within the housing for receiving the blood from the inlet opening, the filtration chamber comprising a membrane separating the blood flow path from a plasma compartment, wherein the blood flow path intersects with the filtration chamber at a fluid intersection; a plasma flow path beginning at the plasma compartment and terminating at a manually operable plasma flow path compression chamber for pulling the plasma across the membrane from the blood flow path to the plasma compartment, wherein the plasma flow path compression chamber defines a cavity, at least a portion of the cavity being located within the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18)
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14. A system for extracting plasma from blood, comprising:
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a housing; an inlet opening in the housing for receiving the blood; a blood flow path beginning at the inlet opening and terminating at a manually operable blood flow path compression chamber for facilitating a blood flow in the blood flow path, wherein the blood flow path compression chamber defines a cavity, at least a portion of the cavity being located within the housing; a filtration chamber within the housing for receiving the blood from the inlet opening, the filtration chamber comprising a membrane separating the blood flow path from a plasma compartment, wherein the blood flow path intersects with the filtration chamber at a fluid intersection; and a first plasma flow path beginning at the plasma compartment and terminating at one of a first plasma flow path outlet and a first plasma flow path compression chamber for drawing the plasma across the membrane, from the blood flow path to the plasma compartment. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification