CN115886722A - Eyeball surrounding pressure detection device - Google Patents
Eyeball surrounding pressure detection device Download PDFInfo
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- CN115886722A CN115886722A CN202111165658.4A CN202111165658A CN115886722A CN 115886722 A CN115886722 A CN 115886722A CN 202111165658 A CN202111165658 A CN 202111165658A CN 115886722 A CN115886722 A CN 115886722A
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Abstract
The invention belongs to the technical field of clinical medical detection devices, and relates to an eyeball surrounding pressure detection device. The detection device consists of a sensor module, an analog-to-digital conversion module and a data acquisition module, wherein the sensor module consists of a film pressure sensor, a sensor connector, a color flat cable and a signal processing module connector; one end of the analog-to-digital conversion module is connected with the sensor module, receives an analog signal transmitted by the sensor module, converts the analog signal into data information and displays the data information on the touch display screen in a curve form; the other end of the data acquisition module is connected with a computer of the data acquisition module, and the data information is synchronously transmitted to the computer of the data acquisition module; when the measurer operates and measures with two hands, the measurement is started and stopped through heel control. The device can realize the functions of local pressure measurement and multipoint simultaneous measurement of the contact surfaces of the eyeballs at each part of the upper eyelid, the lower eyelid, the canthus and the like, and visually and accurately acquire a data tracing curve.
Description
Technical Field
The invention relates to the technical field of clinical medicine ophthalmology detection devices, in particular to an eyeball surrounding pressure detection device which is mainly used for detecting pressure values applied to different parts of an eyeball by an upper eyelid and a lower eyelid.
Background
The prior art discloses that the source of pressure of eyelids on the surface of eyes is mainly composed of connective tissues and muscle contraction in eyelids, and clinical practice shows that diseases such as eyelid inversion, trichiasis, blepharospasm and the like can cause the pressure to rise, while diseases such as idiopathic eyelid skin relaxation and floating eye syndrome can cause the pressure to fall. Changes in pressure at different locations on the surface of the eyeball may cause keratoconjunctival disorders, changes in refractive status, and even affect vision. There is currently no accepted method of measurement for this parameter that is applied to clinical practice. Studies have reported that this pressure value is measured by pulling the eyelashes to measure the tension-displacement ratio, hydraulic pressure conduction, pneumatic pressure conduction, loading a strain sensor using a contact lens, and the like.
The eyelash pulling method is from the 80 s of the last century, the measurement sensitivity is low, the error factors are too much, and the reference value is low at present.
The hydraulic pressure atmospheric pressure conduction mode mainly detects the eyelid bulb pressure through liquid bag gasbag probe deformation transmission pressure to pressure gauge, and its main problem lies in hardly guaranteeing absolute watertight/airtight environment, the deformation of pipeline during the measurement, and the multiple conduction of minute pressure, the thickness of bag nature probe itself all can bring the measuring error who is difficult to avoid.
The method of using the contact lens loaded sensor has high measurement accuracy and sensitivity, but from the anatomical point of view, the upper eyelid partially covers the cornea, and the lower eyelid hardly covers the cornea, so the pressure of the contact surface of the lower eyelid and the two canthus to the eyeball cannot be measured. Meanwhile, the method can only detect the total pressure of the upper eyelid and the eyeball, and cannot realize local fixed-point measurement and multi-point measurement. And the manufacturing cost of the method for detecting the sensing module is very high.
Based on the current state of the art, the inventor of the present application intends to provide a device for detecting pressure around an eyeball to which ophthalmic clinical diagnosis and treatment can be applied.
Disclosure of Invention
The invention aims to provide a device for detecting eyeball surrounding pressure, which can be applied to ophthalmic clinical diagnosis and treatment based on the current situation of the prior art. The detection device can realize the functions of local pressure measurement and multipoint simultaneous measurement of the eyeball contact surfaces of each part such as the upper eyelid, the lower eyelid, the canthus and the like, and intuitively and accurately acquire the data tracing curve. Provides objective basis for diagnosis, treatment and curative effect evaluation of clinically relevant diseases.
The invention provides a pressure detection device around eyeballs, which consists of a sensor module, an analog-to-digital conversion module and a data acquisition module, wherein:
the sensor module consists of a film pressure sensor, sensor connectors, a color flat cable and a signal processing module connector, wherein one end of the film pressure sensor is provided with a plurality of sensor connectors, and the sensor connectors are connected with the signal processing module through the color flat cable;
the data acquisition module comprises a USB data line, a computer and a pedal; the pedal is connected with the computer through a data line;
the analog-digital conversion module comprises a main body part and a rocker arm, wherein the main body part is of a cuboid structure, an analog-digital conversion circuit is arranged in the main body part, a touch display screen is arranged in front of the main body part, a switch and a power line interface are arranged above the main body part, one side of the main body part is connected with a color flat cable through a color flat cable connector, the other side of the main body part is provided with a USB data line interface, and the USB data line interface is connected with a computer through a USB data line; the rocker arm is positioned behind the main body part, one end of the rocker arm is used for fixing the slit lamp microscope, and the angle of the rocker arm body can be adjusted;
the film pressure sensor on the sensor module is arranged between the ocular surface and the eyelid of the measured part, and transmits the collected electric signals to the signal processing module; one end of the analog-to-digital conversion module is connected with the sensor module, receives an analog signal transmitted by the sensor module, converts the analog signal into data information and displays the data information on the touch display screen in a curve form; the other end of the data acquisition module is connected with a computer of the data acquisition module, and the data information is synchronously transmitted to the computer of the data acquisition module; when the measurer operates and measures with two hands, the measurement is started and stopped through heel control.
In the invention, the computer is provided with special software which is compiled by matching with the film pressure sensor, the special software is the prior art, can realize the functions of starting test, stopping test, storing data, real-time curve tracing and the like, and can collect pressure data and draw a curve synchronously.
The film pressure sensor comprises a sensor, a circular film semiconductor resistance card, a resistance card extension part and two guide pins, wherein the sensor is sleeved outside the circular film semiconductor resistance card, two ports of the circular film semiconductor resistance card respectively extend out of the sensor and are connected with the resistance card extension part, the resistance card extension part is respectively connected with the two guide pins, and the guide pins are connected with a measuring unit and are used for measuring.
In the invention, the sensor is a single-point measurement sensor or a multi-point measurement sensor.
In the invention, the measuring unit is subjected to cold sealing and waterproof treatment by a polypropylene film.
The detection device of the invention has the advantages that: the local pressure measurement and multipoint simultaneous measurement functions of the eyeball contact surfaces of the upper eyelid, the lower eyelid, the canthus and other parts can be realized, and the data tracing curve can be intuitively and accurately acquired. Provides objective basis for diagnosis, treatment and curative effect evaluation of clinically relevant diseases.
Drawings
FIG. 1 is a schematic representation of the structure of the present invention;
FIG. 2 is a schematic representation of the sensor module structure of the present invention;
FIG. 3 is a schematic representation of a membrane pressure sensor configuration;
FIG. 4 is a block diagram of an analog-to-digital conversion module;
FIG. 5 is a block diagram of a data acquisition module;
FIG. 6 is a diagram showing the structure of an eyeball according to example 1;
FIG. 7 is a schematic view of the detection structure of embodiment 2;
reference numbers in the figures: 1 is a sensor module, 2 is an analog-digital conversion module, 3 is a USB data line, 4 is a computer, 5 is a pedal, 6 is a film pressure sensor, 7 is a sensor connector, 8 is a color flat cable, 9 is a signal processing module connector, 10 is a semiconductor resistance card, 11 is a resistance card extension part, 12 is a guide pin, 13 is a single-point measurement sensor, 14 is the multiple spot measuring transducer, 15 is the touch-type display screen, 16 is the switch, 17 is the power cord interface, 18 is the color flat cable connector, 19 is the USB data line interface, 20 is the rocking arm, 21 is the slit lamp display mirror, 22 is the cornea contact lens, 23 is the power cord, 24 is the maximum pressure value, 25 is the minimum pressure value, 26 is real-time pressure value.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1-5, the device comprises a sensor module 1, an analog-to-digital conversion module 2 and a data acquisition module, wherein: the sensor module 1 mainly functions to place the membrane pressure sensor 6 between the ocular surface and the eyelid of the measured part and transmit the collected electrical signals to the signal conversion module. One end of the analog-to-digital conversion module 2 is connected with the sensor module 1, the sensor module 1 is fixed on a slit lamp microscope 21 through a rocker arm 20, receives analog signals transmitted by the film pressure sensor 6, converts the analog signals into data information, and displays the data information on the touch display screen 15 in a curve form. The other end is connected with the data acquisition module and synchronously transmits the data information to the data acquisition module.
The computer in the data acquisition module is provided with special software which is compiled by matching with the sensor, so that the functions of starting test, stopping test, storing data, real-time curve tracing and the like can be realized, pressure data is acquired, and a curve is synchronously drawn.
The sensor module comprises a film pressure sensor 6, a sensor connector 7, a color flat cable 8 and a signal processing module connector 9.
The film pressure sensor comprises a sensor, a circular film semiconductor resistance chip 10, a resistance chip extension part 11 and two guide pins 12, wherein a measuring unit is subjected to cold sealing and waterproof treatment by a polypropylene film. The sensor is about 0.2mm thick, and has a total length of about 18-20mm excluding the introducer needle, with a 1lbs range. The sensor is a single-point measuring sensor 13 or a multi-point measuring sensor 14, the diameter of the circumference of the single-point measuring sensor 13 is about 10mm, and the diameter of the circumference of the resistance card is about 7mm; the diameter of the circumference of the multi-point measuring sensor 14 is about 8mm, and the diameter of the circumference of the resistance card is about 6mm.
The sensor connector is that three size is about 14mm × 5mm × 3mm plastics material cuboid, and one end has two 12 sockets of leading the needle to connect the sensor and leads the needle, and the other end links to each other with two data lines in the colored flat cable. Different sensors can conveniently be changed when different measurement demands on the one hand to the connector, make things convenient for the handheld direct contact sensor of avoiding of measurer to lead to measuring error simultaneously.
The color flat cable transmits electric signals, and the connector is connected with the analog-to-digital conversion module.
The analog-digital conversion module comprises a main body part and a rocker arm, wherein the main body part is a plastic cuboid with the size of about 120mm 75mm 45mm, an analog-digital conversion circuit is arranged in the main body part, the front part is provided with a touch display screen 15, the upper part is provided with a switch 16 and a power line interface 17, one side is provided with a color flat cable connector 18 connected with a color flat cable, and the other side is provided with a USB data line interface 19 connected with an upper computer through a data line. The rocker arm 20 is positioned at the rear of the main body part, one end of the rocker arm 20 can be fixed on an ophthalmic slit lamp microscope 21, and the arm body of the rocker arm 20 can be adjusted in angle.
The data acquisition module comprises a USB data line 3, a computer 4 and a pedal 5, wherein the USB data line 3 is connected with the analog-to-digital conversion module and the computer 4. The computer 4 is provided with special software to complete the functions of starting test, stopping test, storing data, real-time curve tracing and the like. The pedal is connected with the computer, and when a measurer operates and measures with both hands, the pedal controls the measurement to start and stop. The dedicated software is prior art.
The conventional detection method comprises the following steps:
(1) Preparing a tested person: and informing the notice before detection. The levofloxacin eye drops wash the conjunctival sac of the tested eye, the aleucaine eye drops are applied to the tested eye for 1-2 drops to perform local anesthesia on the two eyes, and the eyes are closed for rest for 5 minutes. The eye to be tested is fitted with a contact lens (22).
(2) Preparing by a detector: the analog-digital conversion module is fixed on a metal support column of the slit lamp microscope, the color flat cable joint of the sensor module is inserted into a corresponding interface of the analog-digital conversion module, and the data line is connected with the data acquisition module and the analog-digital conversion module. And opening the special software of the computer and setting a data storage path. Place the pedals in the proper position.
(3) And (3) detection: the tested person sits on the seat, and the head of the tested person is fixed on the detection position of the slit lamp microscope. The examiner wears sterile gloves, selects a corresponding sensor according to the measurement position (after plasma sterilization), and inserts the guide needle into the sensor connector. Under the illumination of a slit lamp, a sensor is arranged between an eyelid and an eye surface of a detection part, and after the hand is detected to be stable, a single treading is carried out to start the detection/two continuous treading detections are carried out, and data are stored. The resistance value of the sensor is reduced along with the increase of the pressure, the reciprocal of the resistance value and the pressure form an approximate linear relation, the sensor is connected to an analog-digital conversion (A/D conversion) module through a color flat cable, a data acquisition circuit converts the resistance value change of the pressure sensor caused by the pressure change into a voltage signal, the voltage signal is preprocessed through filtering, amplification and the like, the voltage signal is converted into pressure data through the corresponding relation of the resistance and the pressure, and the pressure data is displayed on computer software in real time and stored in a computer hard disk in a data table format. After the detection is finished, the sensor is taken out after the single stepping is finished.
Example 2
The apparatus described in example 1 was used.
The simple detection method comprises the following steps:
the simple detection is feasible under the condition that the site condition does not allow or carry the computer. The simple detection is only used for single-point measurement, only pressure data and curves are displayed, and data storage cannot be carried out.
(1) The subject is prepared for the conventional testing method.
(2) Preparing by a detector: the analog-digital conversion module is fixed in the slit lamp microscope metal support column, the sensor module color flat cable connector is inserted into a corresponding interface of the analog-digital conversion module, the analog-digital conversion module is connected with a power line (23), an upper switch is turned on, and it is determined that the display state of the touch display screen is normal.
(3) And (3) detection: the tested person sits, and the head is fixed on the slit lamp microscope detection position. The examiner presses the touch key of the display screen to start testing and confirms that the display screen starts to trace the measurement curve. The sterile glove is worn, a corresponding sensor is selected according to the measurement position (after plasma sterilization), and the guide needle is inserted into the sensor connector. Under slit-lamp illumination, the sensor was placed between the detection site eyelid and eye surface. The pressure data [ maximum pressure value 24, minimum pressure value 25 and real-time pressure value 26] and the curve are directly displayed on the display screen after the pressure change is subjected to analog-to-digital conversion as described in example 1. And after the detection is finished, the sensor is taken out, the touch key for stopping testing on the display screen is pressed down, and the switch of the analog-digital conversion module is closed.
The use result shows that the detection device can realize the functions of local pressure measurement and multipoint simultaneous measurement of the eyeball contact surface of each part such as the upper eyelid, the lower eyelid, the canthus and the like, and intuitively and accurately acquire the data tracing curve.
Claims (4)
1. The utility model provides a pressure detection device around eyeball, comprises sensor module, analog-to-digital conversion module and data acquisition module, its characterized in that:
the sensor module consists of a film pressure sensor, sensor connectors, a color flat cable and a signal processing module connector, wherein one end of the film pressure sensor is provided with a plurality of sensor connectors, and the sensor connectors are connected with the signal processing module through the color flat cable;
the data acquisition module comprises a USB data line, a computer and a pedal; the pedal is connected with the computer through a data line;
the analog-digital conversion module comprises a main body part and a rocker arm, wherein the main body part is of a cuboid structure and is internally provided with an analog-digital conversion circuit, a touch display screen is arranged in front of the main body part, a switch and a power line interface are arranged above the main body part, one side of the main body part is connected with a color flat cable through a color flat cable connecting port, the other side of the main body part is provided with a USB data line interface, and the USB data line interface is connected with a computer through a USB data line; the rocker arm is positioned behind the main body part, one end of the rocker arm is used for fixing the slit lamp microscope, and the angle of the rocker arm body can be adjusted;
the film pressure sensor on the sensor module is arranged between the ocular surface and the eyelid of the measured part, and transmits the collected electric signals to the signal processing module; one end of the analog-to-digital conversion module is connected with the sensor module, receives an analog signal transmitted by the sensor module, converts the analog signal into data information and displays the data information on the touch display screen in a curve form; the other end of the data acquisition module is connected with the computer of the data acquisition module, and the data information is synchronously transmitted to the computer of the data acquisition module; when the measurer operates and measures with two hands, the measurement is started and stopped through heel control.
2. The eyeball pressure detection apparatus according to claim 1, characterized in that: the film pressure sensor comprises a sensor, a circular film semiconductor resistance card, a resistance card extension part and two guide pins, wherein the sensor is sleeved outside the circular film semiconductor resistance card, two ports of the circular film semiconductor resistance card respectively extend out of the sensor and are used for being connected with the resistance card extension part, the resistance card extension part is respectively connected with the two guide pins, and the guide pins are connected with a measuring unit and used for measuring.
3. The eyeball pressure detection apparatus according to claim 1, characterized in that: the sensor is a single-point measurement sensor or a multi-point measurement sensor.
4. The eyeball pressure detection apparatus according to claim 1, characterized in that: the measuring unit is subjected to cold sealing and waterproof treatment by a polypropylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111165658.4A CN115886722A (en) | 2021-09-30 | 2021-09-30 | Eyeball surrounding pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111165658.4A CN115886722A (en) | 2021-09-30 | 2021-09-30 | Eyeball surrounding pressure detection device |
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| Publication Number | Publication Date |
|---|---|
| CN115886722A true CN115886722A (en) | 2023-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111165658.4A Pending CN115886722A (en) | 2021-09-30 | 2021-09-30 | Eyeball surrounding pressure detection device |
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| Country | Link |
|---|---|
| CN (1) | CN115886722A (en) |
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2021
- 2021-09-30 CN CN202111165658.4A patent/CN115886722A/en active Pending
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