An electrolyte analyzer device and flow path scheme

Abstract

The invention discloses a flow passage scheme of an electrolyte analyzer. The flow passage scheme comprises a liquid checking and approval steps and concretely comprises the following steps: D1, switching on a calibrating liquid valve corresponding to to-be-calibrated liquid, switching off an air valve V1, rotating a main peristaltic pump, pumping the to-be-calibrated liquid from a flow passage board and pushing a to-be-calibrated liquid head to a rear photosensitive area of a sample box to complete the quantitation of the to-be-calibrated liquid; D2, switching off the calibrating liquid valve corresponding to the to-be-calibrated liquid, switching on the air valve V1, continuously rotating the main peristaltic pump, pushing the to-be-calibrated liquid head to a front photosensitive area of the sample box, and switching off the air valve V1 to complete the positioning of the to-be-calibrated liquid; and D3, after the calibration of the to-be-calibrated liquid is completed, switching on the air valve V1, and rotating the main peristaltic pump and a waste liquid pump in a matching manner to discharge the to-be-calibrated liquid in a pipeline into a waste liquid inlet of the flow passage board. The invention further provides an electrolyte analyzer device. According to the flow passage scheme and the device, the pressure accumulated at an electrode in running of a flow passage can be greatly reduced, and the negative pressure at the electrode can be reduced so as to play a role in protecting an electrode membrane.

Description

technical field [0001] The invention relates to medical electronic equipment, in particular to an electrolyte analyzer device and a flow path scheme. Background technique [0002] The existing flow path schemes applied to electrolytes and blood gas electrolyte analyzers have the following common points: [0003] Pumping liquid inlet: the electrode is located between the pumped liquid and the power source; forward flow path: the standard reagents are sucked in from the sampling needle, and discharged from the back of the flow path in the forward direction; the flow path is powered by a peristaltic pump; there is a preheated flow path way, the preheater is located at the front of the sample box. [0004] The above flow path scheme has the following defects: [0005] 1. Pumping type liquid inlet, the electrode is located between the pumped liquid and the power, and a large negative pressure will be generated at the electrode, which will cause great damage to the electrode mem...

AI Technical Summary

Problems solved by technology

[0005] 1. Pumping type liquid inlet, the electrode is located between the pumped liquid and the power, and a large negative pressure will be generated at the electrode, which will cause great damage to the electrode membrane after a long time;

[0006] 2. The entire flow path of the forward flow path will be polluted by the sample. In order to reduce the cross-contamination instrument, it is necessary to increase the negative pressure at the electrode, and the cleaning cannot guarantee complete cleanliness;

There are difficulties in installing the gas cylinder, long gas path, large gas consumption, and the time for the electrode to withstand negative pressure is increased due to pumping sampling;

[0008] 4. Most semi-automatic sampling racks do not have the function of cleaning the outer wall of the needle and need to be wiped manually

Large human error, high risk of cross-contamination, troublesome operation

Images