Lower machine of capillary-type blood viscosity analyzer

Abstract

The invention discloses a lower machine of a capillary-type blood viscosity analyzer. The lower machine comprises a measurement module, a sampling module, a driving module, a power supply module and a control module. The measurement module comprises a U-shape capillary glass tube, a sample introduction mechanism, a sample discharge mechanism, an air duct, a sampling needle and a turntable; the driving module comprises a motor and a solenoid valve; the control module controls the driving module to drive the measurement module to carry out measurement work; and a measured result is fed back to the control module. The invention utilizes extremely abundant resource of a one-chip microcomputer C8051F340 to simplify a hardware circuit of the lower machine of a rheogeniometer to the most; and USB communication is employed to realize communication with an upper machine, so as to increase communication speed of the upper machine and the lower machine of the rheogeniometer as well as further enhance control precision and reliability of a system.

Description

Technical field [0001] The invention relates to a medical testing instrument, in particular to a capillary blood viscometer lower unit. Background technique [0002] Hemorheology is a discipline that studies the deformation of blood cells in the blood and the influence of plasma fluidity on blood flow. Many studies at home and abroad have shown that blood rheology indicators are highly correlated with the occurrence of cardiovascular and cerebrovascular diseases. By studying the relationship between blood rheology indicators and the pathogenesis of cardiovascular and cerebrovascular diseases, the prevention of such diseases can be further studied. , Diagnosis and treatment have become a hot spot in the field of biomedical engineering and medical research. As an important index of hemorheology, blood viscosity has important reference significance for medical research and clinical diagnosis. [0003] Hemorheology meter is an instrument for measuring blood viscosity. There are two m...

AI Technical Summary

Problems solved by technology

The early U-shaped capillary hemorheometer adopts the control structure of the PCI acquisition card with RS232 communication. This method has the disadvantages of easy interference and low control accuracy under the Windows multi-tasking operating system.

Although the existing U-shaped capillary blood rheometer has abandoned the PCI acquisition card method, it still uses the RS232 interface, and its communication rate is only 115200bps, which is difficult to meet the increasingly rich functions and rapid detection requirements

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