CN2936143Y - Correcting and testing device for oximeter - Google Patents

Abstract

The utility model relates to a calibrating testing device for blood oximeter. The utility model aims at providing a calibrating testing device for blood oximeter which has a long-term stability in line with the required optical properties and can use a small space to simulate an ideal darkroom and mankind conditions. The utility model is characterized in that the utility model is composed of an integral ball, the bottom of the integral ball is connected with a basement to form a stemmed goblet shaped body, the upper opening part of the integral ball is a work platform like a disk, an emission hole and three receiving holes are arranged on the work platform in turn along the diameter direction, with a respective diameter of 10 to 12mm and 0.5 to 5mm for the emission hole and the receiving holes. The utility model provides a permanent and stable test standard for both calibrating and static tests. The results of the calibrating test and that of the static test reach the designed ideal data, i.e. 62 percent. During the simulation process, the stability of the data is lower than 0.1 percent.

Description

Calibrated tester of oximeter

Technical field

This utility model relates to calibrated tester of oximeter.

Background technology

In the manufacture course of products of blood oxygen instrument, there is the important job demand of twice to finish at last, the one, calibration, the 2nd, static test.

Because two transmitting tubes and two receiving tubes are at grade on the detecting head, therefore calibration is once in the darkroom, by two transmitting tubes at a distance large tracts of land reflecting surface, curtain or smooth clean diffuse reflectors such as wall emission laser, form more equally distributed diffusing, it is basic identical to receive only the light intensity that pipe receives over against two of the parallel placement of wall direction.The major defect of this method is that the desirable darkroom of large space is difficult for forming, and large-area diffuse reflector is difficult to the optical characteristics of stable for extended periods of time.

Static test is to test by the normal structure to human body, investigates instrument and whether reaches design objective.Because different people or same individual are under different conditions, the oxygen content of tissue is variant certainly, so be difficult to as nonvolatil stable reference standard.

Summary of the invention

The purpose of this utility model is: provide a kind of satisfactory optical characteristics steady in a long-term that has, with the calibrated tester of oximeter of the desirable darkroom of little spatial simulation and people's concrete conditions in the establishment of a specific crime.

Concrete structural design scheme is as follows:

Calibrated tester of oximeter is characterized in that: comprise integrating sphere, its bottom is connecting base and is forming goblet shape,

Described integrating sphere is the hemispherical Shell of diameter 180-240 millimeter, and its inner surface is provided with the polyester fluorine ethylene material layer that thickness is the 1.5-2 millimeter;

The integrating sphere upper oral part is the disc work platforms, and on the work platforms, be sequentially with a launch hole and three receiver holes successively along diametric(al), described launch hole diameter is the 10-12 millimeter, and described receiver hole diameter is the 0.5-5 millimeter;

Be provided with the strip pressing plate with launch hole, receiver hole corresponding position, the strip pressing plate is fixed on the work platforms by screw.

Described launch hole diameter is 10 millimeters, and described receiver hole diameter is 3 millimeters; Described launch hole and adjacent batter center distance are 20 millimeters, and adjacent batter center distance is 10 millimeters.

Described launch hole diameter is 10 millimeters, and described three receiver hole diameters are respectively 5 millimeters, 1.65 millimeters, 0.5 millimeter; Described launch hole and adjacent batter center distance are 20 millimeters, and adjacent batter center distance is 10 millimeters.

Integrating sphere is called the logical ball of light again, is the complete spherical shell of a hollow.Inwall coating white diffuse reflector, and the diffusion of ball inwall each point is even.The illuminance that light source S produces on any 1 B on the ball wall is to be formed by stacking by the illuminance that multiple reflection light produces.Can be got by the integral calculus principle, the illuminance E of any 1 B is on the sphere:

$E=E_1+\frac{\mathrm{\Φ}}{4\mathrm{\π}{R}^2}$ $\frac{p}{1-p}---$ $\left(1\right)$

In the formula (1), E1 is that light source S directly impinges upon the illuminance on the B point, and the size of E1 is not only relevant with the position that B is ordered, and is also relevant with the position of light source in ball.See Fig. 4.

Useful technique effect of the present utility model is: an integrating sphere through particular design is provided, and it has satisfactory optical characteristics steady in a long-term, with the desirable darkroom of little spatial simulation and people's concrete conditions in the establishment of a specific crime.For the calibration and static test a nonvolatil stable testing standard is provided.Calibration and static test result all reach the desired quantity of design: 62%.Data stability in the simulation process＜0.1%.

Description of drawings

Fig. 1 is this utility model structural representation,

Fig. 2 is the work platforms table top figure with three same diameter receiver holes.

Fig. 3 is the work platforms table top figure with three different-diameter receiver holes.

Fig. 4 is the integrating sphere schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Embodiment 1:

Calibrated tester of oximeter comprises integrating sphere 5, and its bottom is connecting base 6 and forming goblet shapes, and integrating sphere 5 is 200 millimeters of diameters that are processed into by duralumin, the hemispherical Shell of 2 millimeters of wall thickness, and it is 2 millimeters polyester fluorine ethylene material layer that its inner surface scribbles thickness; The end disk diameter of base 6 is 5 millimeters of 120 millimeters, thickness, and middle part connecting rod diameter is 15 millimeters, high 70 millimeters.

Integrating sphere 5 upper oral parts are disc work platforms 4, on the work platforms 4, have a launch hole 7 and three receiver holes 8 along diametric(al) order successively; The launch hole diameter is 10 millimeters, and three receiver hole diameters are 3 millimeters.Launch hole 7 is 20 millimeters with adjacent batter 8 center distance, and adjacent batter center distance is 10 millimeters.

With launch hole, receiver hole corresponding position strip pressing plate 3 is installed, strip pressing plate 3 is fixed on the work platforms 4 by left screw 1 and right screw 2.See Fig. 1, Fig. 2.

When optical correction and static test, as long as being transmitted and received pipe probe, band simultaneously is placed on the position that preestablishes launch hole 7, receiver hole 8 on the work platforms 4, put pressing plate 3 usefulness screws 2 and fix and get final product.

Embodiment 2:

Described launch hole 7 diameters are 12 millimeters, and three receiver hole 8 diameters are respectively 5 millimeters, 1.65 millimeters, 0.5 millimeter; Launch hole 7 and diameter are that 5 millimeters receiver hole 8 is adjacent, and launch hole 7 is 20 millimeters with adjacent batter 8 center distance, and adjacent batter center distance is 10 millimeters.

Other is with embodiment 1.

Claims (3)

1, calibrated tester of oximeter is characterized in that: comprise integrating sphere, its bottom is connecting base and is forming goblet shape,

Described integrating sphere is the hemispherical Shell of diameter 180-240 millimeter, and its inner surface is provided with the polyester fluorine ethylene material layer that thickness is the 1.5-2 millimeter;

The integrating sphere upper oral part is the disc work platforms, and on the work platforms, be sequentially with a launch hole and three receiver holes successively along diametric(al), described launch hole diameter is the 10-12 millimeter, and described receiver hole diameter is the 0.5-5 millimeter;

Be provided with the strip pressing plate with launch hole, receiver hole corresponding position, the strip pressing plate is fixed on the work platforms by screw.

2, calibrated tester of oximeter according to claim 1 is characterized in that: described launch hole diameter is 10 millimeters, and described receiver hole diameter is 3 millimeters; Described launch hole and adjacent batter center distance are 20 millimeters, and adjacent batter center distance is 10 millimeters.

3, calibrated tester of oximeter according to claim 1 is characterized in that: described launch hole diameter is 10 millimeters, and described three receiver hole diameters are respectively 5 millimeters, 1.65 millimeters, 0.5 millimeter; Described launch hole and adjacent batter center distance are 20 millimeters, and adjacent batter center distance is 10 millimeters.