The present disclosure provides a particle analyzer and a particle test control method and device thereof. A method comprises, acquiring a blood sample in a test location; preparing a diluted sample by the acquired sample; after acquiring a diluted sample, monitoring whether a pore blocking event occurs during a counting process; when the pore blocking event occurs, suspending the test of the sample, and performing an unblocking operation; and after the unblocking operation is completed, re-counting the same diluted sample without re-acquiring and re-diluting the blood sample by the impedance method after the unblocking operation.

The present disclosure provides a particle analyzer and a particle test control method and device thereof. A method comprises, after acquiring a diluted sample, preserving a part of the diluted sample, and monitoring whether a pore blocking event occurs during a counting process; when the pore blocking event occurs, suspending the test of the sample, and performing an unblocking operation; and after the unblocking operation is completed, controlling a liquid addition system to again acquire the preserved part of the sample from a reaction cell or a tube of the liquid addition system and inject it into a counting cell, and then re-counting the sample in the counting cell by an impedance method. The method makes full use of the residual diluted sample for a second test to eliminate the impact of pore blocking that occurs in the first measurement of the sample on the test result, and there is no need to be place the sample tube again at test position for re-acquisition and re-dilution, thereby reducing the probability of pore blocking.

The present disclosure provides a particle analyzer and a particle test control method and device thereof. A method comprises, acquiring a blood sample in a test location; preparing a diluted sample by the acquired sample; after acquiring a diluted sample, monitoring whether a pore blocking event occurs during a counting process; when the pore blocking event occurs, suspending the test of the sample, and performing an unblocking operation; and after the unblocking operation is completed, re-counting the same diluted sample without re-acquiring and re-diluting the blood sample by the impedance method after the unblocking operation.

The present disclosure provides a particle analyzer and a particle test control method and device thereof. A method comprises, after acquiring a diluted sample, preserving a part of the diluted sample, and monitoring whether a pore blocking event occurs during a counting process; when the pore blocking event occurs, suspending the test of the sample, and performing an unblocking operation; and after the unblocking operation is completed, controlling a liquid addition system to again acquire the preserved part of the sample from a reaction cell or a tube of the liquid addition system and inject it into a counting cell, and then re-counting the sample in the counting cell by an impedance method. The method makes full use of the residual diluted sample for a second test to eliminate the impact of pore blocking that occurs in the first measurement of the sample on the test result, and there is no need to be place the sample tube again at test position for re-acquisition and re-dilution, thereby reducing the probability of pore blocking.

The present disclosure provides a particle analyzer and a particle test control method and device thereof. The method comprises: after acquiring a diluted sample, preserving a part of the diluted sample, and monitoring whether a pore blocking event occurs during a counting process; when the pore blocking event occurs, suspending the test of the sample, and performing an unblocking operation; and after the unblocking operation is completed, controlling a liquid addition system to again acquire the preserved part of the sample from a reaction cell or a tube of the liquid addition system and inject it into a counting cell, and then re-counting the sample in the counting cell by an impedance method. The method makes full use of the residual diluted sample for a second test to eliminate the impact of pore blocking that occurs in the first measurement of the sample on the test result, and there is no need to be place the sample tube again at test position for re-acquisition and re-dilution, thereby reducing the probability of pore blocking.

A biological particle counting system can include: an impedance particle counter comprising at least one sample aperture; a pump configured to pull particles through the at least one sample aperture of the impedance particle counter for counting, the pump producing a vacuum pressure; and a stepper motor configured to adjust a speed of the pump to substantially maintain the vacuum pressure.

The microparticle measuring apparatus is used in combination with a pore-based device. The pore-based device has a first liquid chamber and a second liquid chamber separated by a partition having a pore. A measuring instrument is structured to measure a current signal that flows between a first electrode provided in the first liquid chamber and a second electrode provided in the second liquid chamber. Upon detection of the clogging of the pore-based device during the measurement, the pressure controller generates pressure difference between the first liquid chamber and the second liquid chamber.

The microparticle measuring apparatus is used in combination with a pore-based device. The pore-based device has a first liquid chamber and a second liquid chamber separated by a partition having a pore. A measuring instrument is structured to measure a current signal that flows between a first electrode provided in the first liquid chamber and a second electrode provided in the second liquid chamber. Upon detection of the clogging of the pore-based device during the measurement, the pressure controller generates a pressure difference between the first liquid chamber and the second liquid chamber.