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CN-121987136-A - Preoperative screening and postoperative prognosis device for refractive surgery based on cornea biomechanics parameters

CN121987136ACN 121987136 ACN121987136 ACN 121987136ACN-121987136-A

Abstract

The invention relates to the technical field of preoperative screening and postoperative prognosis evaluation of refractive surgery, and discloses a preoperative screening and postoperative prognosis device of refractive surgery based on cornea biomechanics parameters, which comprises a base, a shell and a lens, wherein the shell is fixedly arranged on the upper surface of the base; the device uses cornea biomechanical parameters as core detection indexes, can accurately identify high-risk patients with normal morphology but abnormal biomechanics, fills up traditional screening blind areas, reduces postoperative complication risks, can generate an individual assessment report, provides basis for an individual operation scheme, has the advantage of accurate assistance medical treatment, and also has the advantages of accurate detection, simplified operation, standard disinfection, and powerful support for refractive operation screening and prognosis assessment by multi-structure guarantee detection, and is used for tracking the eyeball position of a patient in real time in the detection process.

Inventors

  • LIU MEICHEN
  • LI BINGSHU
  • LI JIAHANG
  • Wang Shunzi

Assignees

  • 刘美辰

Dates

Publication Date
20260508
Application Date
20260202

Claims (10)

  1. 1. The refractive surgery preoperative screening and postoperative prognosis device based on cornea biomechanical parameters is characterized by comprising a base (101); The shell (102) is fixedly arranged on the upper surface of the base (101); A testing device (104) arranged in the shell (102) and used for measuring and analyzing biomechanical parameters of cornea; An eye movement tracking camera (105) which is arranged on the testing device (104) and is used for tracking the eyeball position of a patient in real time in the detection process; The touch display screen (106) is fixedly arranged on the upper surface of the base (101) and used for displaying test data, biomechanical parameter analysis diagrams and screening and prognosis evaluation results; the alarm (107) is fixedly arranged on one side of the base (101) close to the touch display screen (106) and is used for giving out an audible and visual alarm when the eyeball movement is detected to exceed a threshold value; The self-adaptive adjusting mechanism (2) is arranged on the shell (102), and the testing device (104) is connected with the self-adaptive adjusting mechanism (2) and is used for adjusting the relative position of the testing device (104) and eyes of a patient according to the eyes of the patient; A sterilizing mechanism (3) mounted on the housing (102) for sterilizing components in contact with or adjacent to the patient before and after testing; And the adjustable bearing mechanism (4) is integrated on the base (101) and the shell (102) and is used for supporting and stabilizing the head of a patient.
  2. 2. The refractive pre-operative screening and post-operative prognosis device based on corneal biomechanical parameters according to claim 1, characterized in that a mounting seat (103) is provided inside the housing (102), the testing device (104) is mounted on the mounting seat (103), the testing device (104) is integrated with a real-time positioning and observation module configured to: displaying a relative position relation diagram of a detection part of the testing device (104) and eyeballs of a patient on the touch display screen (106) in real time; visual alignment guidance is provided in the position relation diagram to assist an operator in achieving accurate positioning.
  3. 3. The refractive pre-operative screening and post-operative prognosis device based on corneal biomechanical parameters according to claim 1, characterized in that the eye tracking camera (105) is in communication with a central control unit of the testing device (104) configured to: during biomechanical parameter measurements by the testing device (104), analyzing in real time the video stream of the eye tracking camera (105) to monitor eye movements; When the movement amplitude or speed of the eyeballs exceeds a preset safety threshold, a signal is immediately sent to the alarm (107), a warning for interrupting measurement is triggered, the eyeballs are prompted on the touch display screen (106), and the detection result is affected.
  4. 4. The refractive pre-operative screening and post-operative prognosis device based on corneal biomechanical parameters according to claim 2, characterized in that the testing device (104) comprises: a housing mounted on the mount (103); a biomechanical stimulating module mounted on the front side of the housing for applying a controllable physical stimulus to the cornea; The high-speed optical response capturing module is arranged on the front side of the shell and is used for recording the dynamic deformation process of the cornea under the physical stimulus; The signal processing and parameter calculating module is arranged at the rear side of the shell and is used for analyzing the captured deformation data and calculating a group of cornea biomechanical parameters.
  5. 5. The refractive pre-operative screening and post-operative prognosis device based on corneal biomechanical parameters according to claim 4, wherein the biomechanical excitation module is a non-contact pneumatic actuator capable of emitting a controllable pulsed air flow; the signal processing and parameter calculating module calculates parameters including cornea hysteresis, cornea resistance factor and deformation amplitude ratio by analyzing the dynamic deformation process.
  6. 6. The refractive pre-operative screening and post-operative prognosis device based on corneal biomechanical parameters of claim 1, wherein the testing device (104) further comprises a risk assessment module for comparing the calculated biomechanical parameters to a predetermined risk model to generate an individualized pre-operative risk classification or post-operative prognosis assessment report.
  7. 7. The refractive preoperative screening and post-operative prognosis device based on corneal biomechanical parameters according to claim 5, wherein the controllable pulsed air flow generated by the biomechanical excitation module is split into two paths by an air flow distributor: A main air flow path which is emitted through the excitation window and acts on the cornea of the patient; and a branched air flow path, wherein the outlet of the branched air flow path faces to the lens component of the high-speed optical response capturing module and is used for blowing air to the surface of the lens to prevent the lens from fogging.
  8. 8. The refractive surgical pre-operative screening and post-operative prognosis device based on cornea biomechanics parameters according to claim 1, wherein the self-adaptive adjusting mechanism (2) comprises an annular movable cavity arranged on one side of the inner portion of the shell (102), an adjusting disc (201) is arranged in the movable cavity, electromagnet columns (202) which are distributed in annular equidistant mode are embedded in one side of the adjusting disc (201), an electromagnet ring (203) which is in an annular structure is fixedly arranged in the annular movable cavity of the shell (102), an adjusting handle (204) is fixedly arranged on one side of the adjusting disc (201), a control button (205) is arranged on the adjusting handle (204), and the testing device (104) is arranged on the adjusting disc (201).
  9. 9. The refractive surgery preoperative screening and postoperative prognosis device based on cornea biomechanics parameters according to claim 1, wherein the adjusting type supporting mechanism (4) comprises a rectangular groove formed in the upper surface of the base (101), guide rods (404) which are symmetrically arranged are arranged in the rectangular groove, moving blocks (403) are further arranged in the rectangular groove, a telescopic push rod (402) is fixedly arranged on the upper surface of the moving blocks (403), a chin rest (401) is fixedly arranged at the output end of the telescopic push rod (402), a lock pin (405) is slidably arranged on the moving blocks (403) through a sliding hole formed in the sliding block, a second spring (406) is wound on the surface of the lock pin (405), two groups of lock grooves (407) which are matched with the lock pin (405) are formed in the base (101), and a forehead rest plate (408) is fixedly arranged on one side of an open part of the shell (102).
  10. 10. The refractive preoperative screening and postoperative prognosis device based on corneal biomechanical parameters according to claim 1, characterized in that the disinfection mechanism (3) comprises a support plate (301) fixed on both sides of the housing (102), a convex plate (307) is fixed on one side of the support plate (301); Still include disinfection cover (302), disinfection cover (302) are slided on flange (307) through spacing spout, disinfection cover (302) inside wall fixed mounting has ultraviolet lamp (306), the top fixed mounting of casing (102) has bar seat (303), bar seat (303) are slided through the removal hole of seting up and are installed spacer pin (304), the surface of spacer pin (304) is around being equipped with first spring (305).

Description

Preoperative screening and postoperative prognosis device for refractive surgery based on cornea biomechanics parameters Technical Field The invention relates to the technical field of preoperative screening and postoperative prognosis evaluation of refractive surgery, in particular to a preoperative screening and postoperative prognosis device of refractive surgery based on cornea biomechanics parameters. Background Refractive surgery, particularly corneal laser surgery (e.g., LASIK, SMILE, etc.), has become a common method of correcting myopia, hyperopia, and astigmatism, and the safety and long-term stability of surgery are central concerns for both doctors and patients. The success of surgery depends not only on the delicate surgical procedure, but also on comprehensive and accurate preoperative screening and evaluation; At present, a preoperative screening system for refractive surgery mainly depends on detection of morphological parameters of cornea, the change of biomechanical characteristics of cornea is often early appearance of structural weakness, the change is possibly prior to macroscopic morphological change, a patient with cornea thickness and topography being normal can have abnormal biomechanical strength of cornea, if surgery is carried out on the patient, the structural strength of cornea tissue can be further weakened by cutting cornea tissue, the risk of serious complications such as iatrogenic keratosis and keratoconus after surgery is greatly increased, the cornea with the "biomechanical abnormality" is difficult to find by the conventional screening means based on morphology, and the blind area and the biggest hidden trouble of the conventional preoperative safety screening system are formed, so that a preoperative screening and postoperative prognosis device based on the biomechanical parameters of cornea is proposed to solve the problems. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a refractive surgery preoperative screening and postoperative prognosis device based on cornea biomechanical parameters, which solves the problems that the prior refractive surgery preoperative screening depends on cornea morphological parameters, is difficult to find cornea with normal morphology but abnormal biomechanics, is easy to cause complications such as postoperative iatrogenic keratoplasty, keratoconus and the like, and simultaneously solves the problems that the traditional equipment has insufficient detection accuracy, complex operation and irregular disinfection, and influences evaluation reliability and efficiency. The technical scheme of the invention is that the refractive surgery preoperative screening and postoperative prognosis device based on cornea biomechanical parameters comprises a base; the shell is fixedly arranged on the upper surface of the base; The testing device is arranged in the shell and is used for measuring and analyzing biomechanical parameters of the cornea; The eye movement tracking camera is arranged on the testing device and used for tracking the eyeball position of a patient in real time in the detection process; The touch display screen is fixedly arranged on the upper surface of the base and used for displaying test data, biomechanical parameter analysis graphs and screening and prognosis evaluation results; The alarm is fixedly arranged on one side of the base close to the touch display screen and used for giving out an acousto-optic warning when the eyeball movement is detected to exceed a threshold value; the self-adaptive adjusting mechanism is arranged on the shell, and the testing device is connected with the self-adaptive adjusting mechanism and is used for adjusting the relative position of the testing device and the eyes of the patient according to the eye position of the patient; a sterilization mechanism mounted on the housing for sterilizing components in contact with or adjacent to the patient before and after testing; and the adjusting type bearing mechanism is integrated on the base and the shell and is used for supporting and stabilizing the head of a patient. Preferably, a mounting seat is arranged inside the shell, the testing device is mounted on the mounting seat, and the testing device is integrated with a real-time positioning and observing module which is configured to: Displaying a relative position relation diagram of a detection part of the testing device and eyeballs of a patient on the touch display screen in real time; visual alignment guidance is provided in the position relation diagram to assist an operator in achieving accurate positioning. Preferably, the eye tracking camera is in communication with a central control unit of the testing device, the unit being configured to: In the process of measuring biomechanical parameters by the testing device, analyzing the video stream of the eye tracking camera in real time to monitor the movement of eyeballs; when the movement amplitude or spee