Automatic pupil measuring device and method for critically ill patient
By designing the automatic pupil measurement device, using cameras and lights to collect and process pupil images, the problem of insufficient subjectivity and accuracy of traditional pupil examination methods is solved, and high-precision, continuous pupil monitoring and historical data preservation are achieved, which significantly improves the Accuracy of pupil evaluation in critically ill patients.
Patent Information
- Application Number
- CN202411500629.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-01-03
AI Technical Summary
Traditional pupil examination methods rely on subjective observations, have poor accuracy, are difficult to detect subtle pupil changes, and are difficult to achieve automated and continuous monitoring.
An automatic pupil measurement device including eye mask frame, camera, lamp, controller and memory is designed to identify pupil size, shape and light reflection by collecting and processing pupil images, providing accurate measurement results and continuous monitoring and save data.
It realizes objective and accurate pupil measurement, eliminates the limitations of subjective judgment, can detect small changes, provides continuous dynamic monitoring and historical data preservation, and improves the accuracy and reliability of evaluation.
Smart Images
Figure CN119235254A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and in particular to a pupil measurement device and method. Background Art
[0002] Pupillary observation of critically ill patients is an important means of assessing their neurological status, especially in the early detection of increased intracranial pressure and changes in brainstem function. In addition, pupil changes can also monitor the depth of analgesia and sedation and identify patients at risk of delirium.
[0003] Traditional pupil examination mainly relies on visual inspection, mainly observing the size, shape and symmetry of the pupil; checking the pupillary light reflex (direct and indirect); observing whether there is relative pupillary afferent disorder, etc. However, this method has poor accuracy, subjective limitations, and it is difficult to detect subtle changes. Summary of the invention
[0004] In view of this, the purpose of the present invention is to provide a device and method for automatically measuring the pupil of critically ill patients, so as to solve the technical problems of automatically measuring the pupil size, shape and light reflection.
[0005] The invention discloses an automatic pupil measurement device for critically ill patients, comprising an eye mask frame, wherein a partition is arranged in the middle of the eye mask frame to separate a left eye area and a right eye area, wherein a circuit board is arranged in the eye mask frame, wherein a left camera for collecting left eye images, a right camera for collecting right eye images, a left lamp for emitting light to the left eye, a right lamp for emitting light to the right eye, a controller, a memory and a battery are arranged on the circuit board, wherein the controller is respectively connected to the left camera, the right camera, the left lamp, the right lamp, the memory and the battery through the circuit board; and a display screen connected to the controller and the battery is also arranged on the eye mask frame.
[0006] The present invention also discloses a pupil measurement method based on the pupil automatic measurement device for critically ill patients, which comprises the following steps:
[0007] 1) The controller controls the left light and the right light to illuminate the left eye and the right eye simultaneously or alternately;
[0008] 2) The left camera and the right camera continuously capture left eye images and right eye images respectively;
[0009] 3) The controller processes the left eye image and the right eye image, identifies the size and shape of the left eye pupil and the right eye pupil in each frame of the image, and obtains the maximum diameter, minimum diameter, time of changing from the maximum diameter to the minimum diameter and roundness of the left eye pupil by counting the left eye data, and obtains the maximum diameter, minimum diameter, time of changing from the maximum diameter to the minimum diameter and roundness of the right eye pupil by counting the right eye data;
[0010] 4) The controller sends the statistical results to the memory for storage and to the display screen for display.
[0011] Beneficial effects of the present invention:
[0012] 1. The automatic pupil measurement device and method for critically ill patients of the present invention has objective measurement results, eliminating the problem that traditional pupil observation relies on the subjective judgment of medical staff and the consistency and accuracy of the evaluation results are insufficient.
[0013] 2. The automatic pupil measurement device and method for critically ill patients of the present invention have higher accuracy than manual naked eye observation and can detect tiny pupil changes that cannot be detected by naked eye observation, and tiny pupil changes may indicate important pathological changes.
[0014] 3. The automatic pupil measurement device and method for critically ill patients of the present invention isolates external light through an eye mask frame, thereby eliminating the technical problem of external ambient light interfering with pupil measurement.
[0015] 4. The automatic pupil measurement device and method for critically ill patients of the present invention can perform continuous dynamic monitoring of the pupil according to the situation, while traditional manual detection cannot achieve continuous dynamic monitoring.
[0016] 5. The automatic pupil measurement device and method for critically ill patients of the present invention saves the historical measurement data in a memory, so that medical staff can easily retrieve the historical data. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram of the three-dimensional structure of an automatic pupil measurement device for critically ill patients;
[0018] Figure 2 A three-dimensional schematic diagram of the automatic pupil measurement device for critically ill patients after the display screen is removed;
[0019] Figure 3 A three-dimensional schematic diagram of an automatic pupil measurement device worn on the head of a critically ill patient;
[0020] Figure 4 It is a three-dimensional schematic diagram of the eye mask frame and the partition. DETAILED DESCRIPTION
[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0022] As shown in the figure, the automatic pupil measurement device for critically ill patients in this embodiment includes an eye mask frame 1, a partition 2 is provided in the middle of the eye mask frame to separate the left eye area and the right eye area, and a headband 3 is also connected to the eye mask frame. In a specific implementation, the part of the eye mask frame that contacts the skin can be made of rubber material to improve the comfort of cooperation. A circuit board 4 is provided in the eye mask frame, and a left camera 5 for collecting left eye images, a right camera 6 for collecting right eye images, a left light 7 for emitting light to the left eye, a right light 8 for emitting light to the right eye, a controller 9, a memory 10 and a battery 11 are provided on the circuit board. The controller is connected to the left camera, the right camera, the left light, the right light, the memory and the battery respectively through the circuit board; the eye mask frame is also provided with a display screen 12 connected to the controller and the battery. The battery 11 supplies power to the entire device.
[0023] The pupil measurement method of the above-mentioned critically ill patient pupil automatic measurement device comprises the following steps:
[0024] 1) The controller controls the left and right lights to illuminate the left and right eyes simultaneously or alternately. Simultaneous illumination can observe the direct light radiation of the pupil; alternating illumination can observe the indirect light reflection of the eyes that are not illuminated by the light.
[0025] 2) The left camera and the right camera continuously capture left eye images and right eye images respectively.
[0026] 3) The controller processes the left eye image and the right eye image, and identifies the size and shape of the left eye pupil and the right eye pupil in each frame of the image. The left eye data is statistically obtained to obtain the maximum diameter, minimum diameter, time from the maximum diameter to the minimum diameter, and roundness of the left eye pupil; the right eye data is statistically obtained to obtain the maximum diameter, minimum diameter, time from the maximum diameter to the minimum diameter, and roundness of the right eye pupil.
[0027] 4) The controller sends the statistical results to the memory for storage and to the display screen for display.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.
Claims
1. An automatic pupil measurement device for critically ill patients, characterized by: The invention comprises an eye mask frame, wherein a partition is arranged in the middle of the eye mask frame to separate the left eye area and the right eye area, a circuit board is arranged in the eye mask frame, a left camera for collecting left eye images, a right camera for collecting right eye images, a left lamp for emitting light to the left eye, a right lamp for emitting light to the right eye, a controller, a memory and a battery are arranged on the circuit board, and the controller is respectively connected with the left camera, the right camera, the left lamp, the right lamp, the memory and the battery through the circuit board; and a display screen connected with the controller and the battery is also arranged on the eye mask frame.
2. The pupil measurement method of the critically ill patient automatic pupil measurement device according to claim 1, characterized in that: The following steps are involved: 1) The controller controls the left light and the right light to illuminate the left eye and the right eye simultaneously or alternately; 2) The left camera and the right camera continuously capture left eye images and right eye images respectively; 3) The controller processes the left eye image and the right eye image, identifies the size and shape of the left eye pupil and the right eye pupil in each frame of the image, and obtains the maximum diameter, minimum diameter, time of changing from the maximum diameter to the minimum diameter and roundness of the left eye pupil by counting the left eye data, and obtains the maximum diameter, minimum diameter, time of changing from the maximum diameter to the minimum diameter and roundness of the right eye pupil by counting the right eye data; 4) The controller sends the statistical results to the memory for storage and to the display screen for display.
Citation Information
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