US20060079809A1 - Blood Monitoring System - Google Patents
U.S. Pat. No. 4,919,596, assigned to IVAC Holdings describes a fluid supply monitoring and control apparatus for use in a medication infusion system. What can be wanted is a affected person fluid infusion supply system and blood monitoring system wherein the blood measurement unit is situated near the infusion pump, for ease of use in a critical care or surgical atmosphere. Each single use sensor is advanced sequentially and positioned for direct contact with a blood sample by means of an advancement means, whereby the development means contains a blood optical sensor for sensing the arrival and departure of undiluted blood within the sensor blood oxygen monitor cassette. Subsequently, the control unit mechanically resumes regular operation of infusion of the exterior infusion fluid delivery system. Further nonetheless, the combined measurement improves the accuracy of predicting whole blood glucose stage from measured plasma glucose level. FIGS. Three a - 3 d illustrate a sensor tape, as utilized in FIGS.
FIGS. 4 a - 4 d illustrate a sensor tape, as utilized in FIGS. FIG. 6 a is an illustration of a sensor cassette as used in the automated blood analysis gadget of the present invention. FIG. 6 c is an isolated and expanded illustration of the drum construction of a sensor cassette as used in the automated blood evaluation device of the current invention. FIG. 6 d is an remoted illustration of the take a look at strip handling mechanism of the sensor cassette as used within the automated blood evaluation gadget of the present invention. FIGS. 6 e and 6 f are expanded illustrations of the blood oxygen monitor pattern delivery operation as used within the as used in the automated blood analysis gadget of the current invention. FIGS. 6 g and 6 h are illustrations of the tubing cleaning operation as used in the automated blood analysis system of the current invention.
FIGS. 10 a and 10 b illustrate different strategies for controlling the move of fluids in connection to the automated blood evaluation system of the present invention, as proven in FIGS. FIG. 12 illustrates a table of blood bolus volumes in cubic centimeters in response to the tube diameter in mm and its size in cm. FIG. 14 illustrates an automated blood analysis device, similar to that shown in FIGS. FIG. 15 illustrates a machine just like that described with reference to FIGS. FIG. 18 depicts another non-obligatory embodiment of the automated blood analysis device, wherein a saline bag is added to the system for self-flushing. "clean" and undiluted blood pattern. If linked in parallel to an infusion fluid delivery system, the system automatically resumes normal infusion operation till the following blood chemistry studying is desired. Optionally, the system disposes of your complete blood pattern and simply resumes normal infusion operation.
Either single lumen or a number of lumen tubing buildings are connected to the catheter connected to the vascular access level. CL ⁇ , Mg, Ca); blood gases (pO 2 , pCO 2 , pH); cholesterol; bilirubin degree; and varied different parameters that can be measured from blood or plasma samples. 1 is a gadget for robotically measuring blood analytes and blood parameters. Automated blood analysis machine 1 is linked to a catheter or a venflon (not shown) resulting in the patient 2 , to be able to routinely gather blood samples and automatically measure required blood parameters. 1 comprises principal unit 3 ; sensor cassette 5 , which is ideally disposable; waste container 7 ; fluid container 9 ; first infusion pump 11 ; and second infusion pump thirteen . Eleven and second infusion pump 13 are volumetric infusion pumps as are properly-identified in the artwork to be used in intravenous fluid administration programs, although different sorts of pumps similar to peristaltic pumps, piston pumps, or syringe pumps can be used.
Also, however not limited to such makes use of, it is most well-liked that first infusion pump 11 is used to regulate the stream in the fluid delivery line from fluid container 9 and second infusion pump thirteen is used to control the move in line 16 used for drawing blood samples to sensor cassette 5 . Automated blood analysis gadget 1 additionally includes a series of tubes, together with line sixteen , that are described in further detail beneath. 1 includes a primary automated three-approach stopcock 15 for controlling the move inside line sixteen and a second automated three-method stopcock 17 for controlling the circulation of fluids to and from the exterior tubing and/or exterior gadgets. 15 and second stopcock 17 is ideally absolutely automated and controlled by foremost unit three . An automated sampling interface mechanism 18 described in further detail beneath, enables a blood pattern to be brought mechanically from line 16 to sensor 19 inside sensor cassette 5 .
