Fluid analysis system
First Claim
1. A fluid analysis system comprising:
- a fluid handling system that includes a patient end configured to provide access to a bodily fluid of a patient, wherein the fluid handling system is configured to draw a sample of bodily fluid from the patient through the patient end;
a sample preparation system in fluid communication with the fluid handling system, the sample preparation system comprising a cuvette, the cuvette comprising;
a first window piece;
a second window piece;
a spacer positioned between the first window piece and the second window piece to provide a gap between the first window piece and the second window piece; and
a first clamping element and a second clamping element positioned on opposite sides of the window pieces, wherein the first and second clamping elements are secured to each other to provide support to the first and second window pieces;
wherein the sample preparation system is configured to;
receive a portion of the sample of bodily fluid from the fluid handling system; and
separate the portion of the sample of bodily fluid into a plurality of components; and
a fluid measurement system configured to measure the concentration of an analyte in the portion of the sample of bodily fluid.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and method are disclosed for determining a concentration of an analyte in a fluid (e.g., blood). The system can draw blood from a patient and deliver the blood to a sample cell. A particular component of the fluid (e.g., plasma) may be separated and/or positioned such that the concentration of the analyte is measured in the particular component of the fluid (e.g., plasma). The sample cell can include a sample container that has two window pieces. The system can have a fluid passage having a tip configured to mate with a multi-lumen catheter without leaking. The multi-lumen catheter can have proximal and distal ports. A fluid pressure system can be configured to periodically draw fluid from vasculature through a proximal intravascular opening and the proximal port while maintaining a low pressure and/or flow rate to thereby reduce risk of reversing the fluid flow in a vessel and drawing infusates upstream into another intravascular opening.
239 Citations
20 Claims
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1. A fluid analysis system comprising:
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a fluid handling system that includes a patient end configured to provide access to a bodily fluid of a patient, wherein the fluid handling system is configured to draw a sample of bodily fluid from the patient through the patient end; a sample preparation system in fluid communication with the fluid handling system, the sample preparation system comprising a cuvette, the cuvette comprising; a first window piece; a second window piece; a spacer positioned between the first window piece and the second window piece to provide a gap between the first window piece and the second window piece; and a first clamping element and a second clamping element positioned on opposite sides of the window pieces, wherein the first and second clamping elements are secured to each other to provide support to the first and second window pieces; wherein the sample preparation system is configured to; receive a portion of the sample of bodily fluid from the fluid handling system; and separate the portion of the sample of bodily fluid into a plurality of components; and a fluid measurement system configured to measure the concentration of an analyte in the portion of the sample of bodily fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification