High-precision positioning prepressing mechanism and blood Qi analyzing instrument

Abstract

The invention discloses a high-precision positioning prepressing mechanism and a blood Qi analyzing instrument. The prepressing mechanism comprises a fixed assembly and a moving assembly, wherein thefixed assembly comprises a base plate, a motor and a slide rail; the slide rail and the motor are connected to the base plate, and the slide rail is arranged in the length direction of an output shaftof the motor; the moving assembly comprises a sliding block, a driving part and a mounting plate; the sliding block is in sliding connection with the slide rail; one end of the driving part sleeves the output shaft of the motor, and the other end of the driving part is connected to the sliding block which is connected to the mounting plate. The blood Qi analyzing instrument comprises the prepressing mechanism. According to the prepressing mechanism, the driving part and a conveying shaft of the motor are in threaded fitting to drive the sliding block to move relative to the slide rail, and thus the mounting plate for mounting a collecting plate assembly can be driven to move relative to a mounting slot in which an electrode card can be mounted; the aligning accuracy of the collecting plate assembly and the electrode card can be accurately controlled; in addition, the driving part is in threaded fitting with the conveying shaft of the motor, so that the linear moving precision can be improved, and as a result, the prepressing rate of an elastic pin of the collecting plate assembly to an electrode point on the electrode card can be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a high-precision positioning pre-compression mechanism and a blood gas analyzer. Background technique [0002] The blood gas analyzer refers to the use of electrodes to measure the acidity and alkalinity (pH) and partial pressure of carbon dioxide (PCO) in the blood in a short period of time. 2 ) and partial pressure of oxygen (PO 2 ) and other related indicators have very high requirements on the sensitivity and accuracy of the signal acquisition board components. However, when there is no signal or prompts an alarm when the instrument is in use, the signal acquisition board assembly of the existing blood gas analyzer cannot self-check, so it cannot be judged whether the problem is caused by the failure of the acquisition board assembly's own components or the acquisition board. The connection and communication failure between the components and the electrode card caus...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, propose a high-precision positioning preloading mechanism, and solve the technical problems of inconvenient maintenance and unstable use of blood gas analyzers in the prior art

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