Waste liquid discharging device, blood coagulation analyzer with waste liquid discharging device and discharge method

Abstract

The invention discloses a waste liquid discharging device, a blood coagulation analyzer with waste liquid discharging device and a discharging method. The waste liquid discharging device comprises: atransfer tank assembly, used for storing waste liquid, a first liquid level sensor which is arranged in the transfer tank assembly and is used for detecting the liquid level in the transfer tank assembly; a waste liquid pump, which comprises an inlet and an outlet, wherein the inlet is communicated with the lower end surface of the transfer tank assembly; a waste liquid barrel which is communicated with the outlet and is used for storing waste liquid; and a controller which is connected with the waste liquid pump and is used for controlling the start and stop of the waste liquid pump; the controller is also connected with the first liquid level sensor; when the first liquid level sensor detects that the liquid level in the transfer tank assembly reaches a preset liquid level, the first liquid level sensor issues an on signal to the controller, and the controller receives the signal and controls the waste liquid pump to start. The waste liquid discharging device, the blood coagulation analyzer with the waste liquid discharging device and the waste liquid discharging method realize the semi-automatic liquid discharge of the analyzer and prolong the service life of the waste liquid pump.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a waste liquid discharge device, a coagulation analyzer with a waste liquid discharge device and a waste liquid discharge method. Background technique [0002] In the coagulation analysis instrument, a certain amount of waste liquid will be generated when cleaning the sampling needle and other executive parts. In order to effectively collect the generated waste liquid, the following schemes are currently adopted: [0003] 1. Generally, the waste liquid outlet at the lower end of the cleaning tank is directly connected to the waste liquid pump inlet with a pipeline, and the waste liquid pump outlet is connected to the waste liquid bucket outside the machine, and the waste liquid pump is directly used to collect the waste liquid generated by these cleaning needles. However, in order to ensure that the waste liquid in the cleaning tank will not overflow from the top of th...

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Problems solved by technology

However, in order to ensure that the waste liquid in the cleaning tank will not overflow from the top of the cleaning tank during the cleaning process of the sampling needle, the waste liquid pump is required to be turned on all the time during the cleaning process, which shortens the service life of the waste liquid pump and may cause waste The liquid pump reaches the predetermined service life in a short period of time and needs to be replaced due to damage, which increases the maintenance cost of the whole machine

[0004] 2. Generally, it is necessary to use a negative pressure system alone to generate negative pressure on the closed waste liquid container. The waste liquid generated by cleaning is sucked into the waste liquid container by negative pressure, and finally the waste liquid pump passes through the pipeline from the bottom wall of the waste liquid container. The outlet directly pumps out the waste liquid, but in this set of negative pressure waste liquid discharge system, an additional set of negative pressure system device that provides negative pressure for the closed waste liquid container is added, which increases the cost of the whole machine, and the waste liquid is in the Foaming when entering waste container due to fast flow and splashing

[0005] 3. The waste liquid outlet at the lower end of the cleaning tank is directly connected to the waste liquid bucket outside the machine with pipelines. The waste liquid generated in the cleaning tank due to needle washing is left in the waste liquid bucket outside the machine by its own gravity. The structure of this scheme is relatively simple, but, It is required that the waste liquid inlet position of the waste liquid tank is lower than the waste liquid outlet position at the lower end of the cleaning tank during the waste liquid discharge process, so that the waste liquid can be discharged smoothly, which limits the use conditions and causes inconvenience

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