CN204072124U - A kind of eyelid force tester - Google Patents

Abstract

The utility model discloses an eyelid force tester, which comprises a shell with a tension sensor inside, a hand-held end connected to the top of the shell, and a suction cup connected to the tension sensor through a pull rod at the bottom of the shell. An analog-to-digital converter connected to the tension sensor, a processor connected to the analog-to-digital converter, and a digital display screen connected to the processor are provided, and a window for displaying the digital display screen is opened on the housing. When the utility model is in use, the suction cup is adsorbed on the eyelid skin of the testee, and the hand-held end is pulled upwards to pull the eyelids away from the cornea. The tension sensor converts the tension into an electrical signal and outputs the electrical signal to the analog-to-digital converter. The analog-to-digital converter converts the electrical signal into a digital signal, and outputs the digital signal to the processor, and the processor converts the digital signal into a force value and outputs it to the digital display screen, so as to measure the specific value of the eyelid force, which is helpful for evaluation The effect of eyelids on contact lenses.

Description

Eyelid tester

technical field

The utility model relates to a measuring device, in particular to an eyelid force tester for measuring eyelid strength of a human body.

Background technique

When formulating contact lenses, it is necessary to know the strength of the wearer's eyelids to evaluate the effect of wearing the lenses. At present, the fitter judges the strength of the eyelid by pulling the eyelid of the wearer. Although the method of lifting the eyelid to test the eyelid strength is convenient, this method is a subjective and empirical measurement method, and the accuracy of the judgment is different from that of the wearer. The experience of the fitter is largely related to the subjective component, and the method of lifting the eyelid to test the eyelid strength is only a qualitative method, not a quantitative method, and cannot test the specific value of the wearer's eyelid strength.

Contents of the invention

The purpose of the utility model is to provide an eyelid force tester which can accurately measure the specific value of the eyelid force.

The utility model adopts the following technical scheme: an eyelid force tester, which includes a shell with a tension sensor inside, a hand-held end connected to the top of the shell, and a suction cup connected to the tension sensor through a pull rod at the bottom of the shell. An analog-to-digital converter connected to the tension sensor, a processor connected to the analog-to-digital converter, and a digital display screen connected to the processor are arranged in the housing, and a digital display window is opened on the housing.

The hand-held end is an annular suspension ring for fingers to pass through.

The suction cup is made of silicone material.

The beneficial effects of the utility model are: when the utility model is in use, the hand-held end is located at the top and the suction cup is located at the bottom, the suction cup is adsorbed on the eyelid skin of the subject, and the hand-held end is pulled upwards, and the upward pulling force passes through the pull rod and with the aid of The suction cup conducts to the eyelid, pulls the eyelid out of the adsorption state with the cornea, and makes the eyelid leave the cornea. The tension sensor converts the tension into an electrical signal and outputs the electrical signal to the analog-to-digital converter. The analog-to-digital converter converts the electrical signal into digital Signal, and output the digital signal to the processor, the processor converts the digital signal into a force value and outputs it on the digital display screen, so as to measure the specific value of the eyelid force, which helps to evaluate the impact of the eyelid on the contact lens. The utility model has the advantages of simple structure, convenient use, small volume and very portable.

Further, the hand-held end of the ring-shaped ring structure is convenient for fingers to be inserted, and it is convenient to use fingers to hang and hold the tester housing with the palm, and a stable upward pulling force can be provided by one hand through the ring.

Furthermore, the silicone suction cup is soft and non-irritating to the skin, which can reduce the uncomfortable feeling of the testee.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model;

Fig. 2 is the schematic diagram that the housing of the eyelid tester in Fig. 1 is opened;

Fig. 3 is a functional block diagram of the eyelid force tester in Fig. 1 .

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The structure of an embodiment of the eyelid force tester of the present invention is shown in Figures 1 to 3. The eyelid force tester of this embodiment includes a housing 2, and a hand-held terminal 1 is connected to the top of the housing 2, and the hand-held terminal 1 adopts A ring-shaped suspension ring, which can be inserted by fingers, is convenient to use fingers to hang and hold the tester housing 2 with the palm, and can provide a stable upward pulling force on the eyelids with one hand through the suspension ring; the bottom of the housing 2 is provided with A suction cup 5 made of silica gel, the suction cup 5 can be adsorbed on the eyelid skin by negative pressure; a tension sensor 61 is arranged inside the housing 2, and a pull rod 4 is arranged between the suction cup 5 and the tension sensor 62, and the lower end of the pull rod 4 is connected to the suction cup 5 , the upper end is connected with the tension sensor 61, and the suction cup and the tension sensor are connected together by the pull rod, and the pull rod can be used for conducting the pulling force that the suspension ring is subjected to; the housing 2 is provided with an analog-to-digital converter 62 connected with the tension sensor 61, and an analog-to-digital conversion The processor 63 connected to the device 62, the digital display screen 3 connected to the processor 63, and the housing 2 is provided with a digital display window. The tension sensor 61 can convert the tension into an electrical signal, and output the electrical signal to the analog-to-digital converter 62, and the analog-to-digital converter 62 converts the electrical signal into a digital signal, and outputs the digital signal to the processor 63, and the processor 63 will The digital signal is converted into a force value and output to the digital display screen 3 .

When using this embodiment, the hand-held end is at the top and the suction cup is at the bottom. The suction cup is adsorbed on the eyelid skin of the testee, and the fingers are inserted into the suspension ring. It is transmitted to the eyelid through the rod, pulling the eyelid out of the adsorption state with the cornea, and finally the eyelid is separated from the cornea. The specific value of the measured eyelid force will be output on the digital display, so that the tester can directly read the value of the eyelid force. The eyelid dynamometer of this embodiment can quantitatively measure the strength of the eyelid, which is helpful for evaluating the influence of the eyelid on the contact lens.

The tension sensor, analog-to-digital converter and processor of the utility model can be realized by adopting the tension sensor, analog-to-digital converter and processor in the prior art.

In other embodiments of the present utility model, the hand-held end can also adopt an oval suspension ring, and can also adopt the form of a drawstring.

In other embodiments of the utility model, the suction cup can also be made of soft materials such as rubber.

Claims (3)

1. an eyelid force tester, it is characterized in that: it comprises the housing (2) that inside is provided with pulling force sensor (61), the top of housing (2) is connected with handheld terminal (1), the below of housing (2) is provided with the sucker (5) be connected with pulling force sensor (61) by pull bar (4), be provided with the analog-digital converter (62) be connected with pulling force sensor (61), the processor (63) be connected with analog-digital converter (62), the digital display screen (3) that is connected with processor (63) in described housing (2), (3) offer digital display screen window to described housing.

2. eyelid force tester according to claim 1, is characterized in that: described handheld terminal (1) be for finger through annular suspension ring.

3. eyelid force tester according to claim 1 and 2, is characterized in that: described sucker (5) is made up of silica gel material.