2 results about "Blood corpuscles" patented technology

State of art techniques for measurement of blood viscosity, RBC concentration and the like are in vitro methods. Embodiments of the present disclosure provide a method and system for in vivo non-invasive measurement of blood parameters using Laser Enabled Swept Frequency Acoustic Interferometry (LE-SFAI) principle. A Continuous Wave Laser diode based Photo Acoustic (CWPA) signal in frequency domain generated from laser excitation incident on a biological tissue of a subject carrying blood vessel is acquired by the ultrasound sensor and converted to a windowed time domain CWPA signal limited to two peaks. The signal characteristics such as risetime, amplitude, and time difference between first peak and the second peak are obtained to derive blood viscosity, Red Blood Corpuscles (RBC) concentration, and blood vessel diameter.

The application belongs to the technical field of cell culture, and particularly relates to a method for determining the number of particles in a unit volume of liquid and application. The method comprises the following steps: (1) using a dye to dye the liquid to be measured, and sequentially dropping the dyed liquid to be measured and a chromatographic separation liquid at one end of filter paper, the particles in the liquid to be measured are dispersed on the filter paper under the action of capillary chromatography, and the number of particles in the liquid to be measured is obtained by naked-eye counting; (2) according to the volume of the liquid to be measured, the number of particles in a unit volume of liquid is calculated. The determination method of the application does not need to purchase expensive instruments, does not need to take photos and use image analysis software for auxiliary counting, breaks through the limitation that a blood cell counter cannot determine particles with a particle size greater than 100 mu m, and can complete the determination of the number of particles by naked-eye observation, which is simple, efficient and low in cost.