Liquid temperature uniformizing machine for conjunctival-impression cytological examination and speed regulator

Abstract

The invention provides a liquid temperature uniformizing machine for conjunctival-impression cytological examination and a speed regulator. The liquid temperature uniformizing machine for conjunctival-impression cytological examination comprises voltage stabilizers IC1-IC2, potentiometers RP1-RP2, triodes VT1-VT2, a transformer T, diode D1-D6, capacitors C1-C5, resistors R1-R5 and wiring terminalsJI- J6. The liquid temperature uniformizing machine for conjunctival-impression cytological examination comprises a speed regulator of the liquid temperature uniformizing machine for conjunctival-impression cytological examination, a housing, a first motor fixing rod, a second motor fixing rod, a first machine cover, a second machine cover, a first motor, a second motor, a first motor power supply wire, a second motor power supply wire, a power wire and an attaching plug. The liquid temperature uniformizing machine has the advantages that an oscillating circuit is utilized to drive an oscillating motor to produce an excitation force and better improve the uniformity of a temperature field of liquid for conjunctival-impression cytological examination, and can reduce pollution caused by a liquid medium as much as possible while reducing the influence of nonuniform liquid medium temperature on the reliability of an examination result.

Description

technical field [0001] The invention relates to an ophthalmic examination device, in particular to a liquid homogenizer and speed regulator for conjunctival imprint cytology examination. Background technique [0002] Dry eye is a common eye disease in clinical practice. The symptoms are dryness, foreign body sensation, burning sensation, photophobia, blurred vision, visual fatigue, and visual fluctuations. In current clinical practice, there are many examination methods for dry eye syndrome, such as tear film break-up time, tear secretion test, and corneal fluorescein sodium staining, etc., but the most reliable examination method is conjunctival imprint cytology. Cytological examination of conjunctival blot requires the use of viscous liquids such as diethylene glycol diacrylate (PDDA) and cellulose acetate as the medium, and the temperature field of such viscous liquids is uneven and high, and the surface and bottom layers of the liquid exist A large temperature differenc...

AI Technical Summary

Problems solved by technology

However, the stirring device has the disadvantages of high noise, easy to contaminate the medium, and poor temperature uniformity, which brings a lot of inconvenience to conjunctival blot cytology examination.

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