Blood testing system and method
Some embodiments of a blood coagulation testing system include an analyzer console device and a single-use components configured to releasably install into the console device. In some embodiments, the blood coagulation testing system can operate as an automated thromboelastometry system that is particularly useful, for example, at a point-of-care site. The systems can be configured with features such as individual actuation systems for each measurement module, and firmware for initial and ongoing calibration and error detection.
1. A control console for measuring coagulation characteristics of a blood sample, the control console comprising:
a control unit housing;
a user interface coupled to the control unit housing for displaying coagulation characteristics of a blood sample; and
a plurality of individual thromboelastometry measurement modules housed in the control unit housing, each measurement module of the plurality of individual thromboelastometry measurement modules including a shaft configured to receive a probe for testing the blood sample using a probe and cup arrangement,
wherein each individual measurement module of the plurality of individual thromboelastometry measurement modules includes a dedicated actuation unit comprising a magnet that magnetically couples a spring wire to a slider unit and is configured to provide linear translation of a slider unit that drives rotation of a respective shaft of the individual measurement module independently from rotation of shafts of all other individual measurement modules of the plurality of individual thromboelastometry measurement modules.
2. The control console of claim 1 , wherein the actuation unit comprises a stepper motor, wherein the stepper motor includes a threaded driveshaft, wherein the actuation unit further comprises the slider unit, and wherein the slider unit comprises a threaded collar that is threadably engaged with the threaded drive shaft such that the stepper motor can drive the slider unit to translate linearly.
3. The control console of claim 2 , wherein the actuation unit further comprises a spring wire, and wherein a linear translation of the slider unit causes a pivoting of the shaft because of the spring wire extending between the slider unit and the shaft.
4. The control console of claim 1 , wherein the spring wire is magnetically attracted to a curved surface of the slider unit.
5. The control console of claim 1 , wherein each individual measurement module of the plurality of individual thromboelastometry measurement modules includes an evaluation unit for evaluating a charge-coupled device (CCD) component, the evaluation unit being configured to (i) receive brightness distribution data from the CCD, (ii) generate CCD calibration data based on the brightness distribution data, and (iii) compare the CCD calibration data to real-time-measured CCD brightness distribution data.