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Eye model device for simulating eye lacrimal passage flushing

A model device and eye technology, applied to teaching models, educational tools, instruments, etc., to achieve the effect of strong hands-on operation ability, simple operation and various methods

Active Publication Date: 2021-04-09
PEOPLES HOSPITAL OF HENAN PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides an eye model device for simulating eye lacrimal duct flushing, which solves the problems mentioned in the above-mentioned background technology

Method used

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  • Eye model device for simulating eye lacrimal passage flushing
  • Eye model device for simulating eye lacrimal passage flushing
  • Eye model device for simulating eye lacrimal passage flushing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1, an eye model device for simulating eye lacrimal duct irrigation, including a model bracket 1, a transparent nose model 2 is installed on the bracket 1, about the simulation of the lacrimal duct, we usually have five Two situations need to be simulated. The first situation is for the upper lacrimal canaliculus 14 and the lower lacrimal canaliculus 14. If the irrigation liquid injected into the lacrimal canaliculus 14 through the lacrimal puncta at the ends of the two groups of lacrimal canaliculi 14, the irrigation liquid here We can use diluted potassium permanganate solution, which is a light purple-red liquid, odorless and non-toxic. If the flushing liquid returns from the punctum, it means that the corresponding canaliculus 14 is blocked. The second situation is that if flushing If the liquid has no resistance and the liquid enters the nasal cavity or pharynx smoothly, it indicates that the lacrimal duct is unobstructed, and all places are unobstructed. ...

Embodiment 2

[0041] Embodiment 2, on the basis of Embodiment 1, the described dacryocystitis 12 simulation device includes a rectangular notch 16 opened at the right end of the nasolacrimal duct 11, and also includes a rotating shaft 17 that is rotatably connected to the backboard 3. The front end of the rotating shaft 17 is equipped with two groups of arc-shaped plates 18 arranged symmetrically in the center. The arc-shaped plates 18 match the rectangular notch 16 to block the rectangular notch 16. By rotating the rotating shaft 17, different The arc-shaped plate 18 on the side cooperates with the rectangular notch 16 to realize blocking, and a sealing ring structure of rubber material is arranged between the arc-shaped plate 18 and the rectangular notch 16, so as to prevent the two from collapsing in the nasolacrimal duct 11 during the cooperation process. The liquid flows out from the gap between the two, and a liquid storage tank 19 placed on one side of the rotating shaft 17 is connect...

Embodiment 3

[0044] Embodiment 3. On the basis of Embodiment 2, the rotation locking device includes a fixed ring 35 mounted on the rear end of the back plate 3. The fixed ring 35 has two sets of limiting grooves 36 along the circumference, and also includes Two groups of radial blocks 37 are opened on the rotating shaft 17 in the circumferential direction. The ends of the radial blocks 37 slide radially to fit a limit block 38, and a stopper 38 is connected between the limit block 38 and the radial block 37. The first spring 39 arranged radially, the stop block 38 cooperates with the stop slot 36 to lock the rotation of the rotating shaft 17, and one or two sets of stop blocks 38 slide radially at the end of the main shaft Cooperating drive plate 40, by manually pinching two groups of limit blocks 38 to compress the first spring 39, the limit blocks 38 are disengaged from the limit groove 36, at this time the relative rotation between the rotating shaft 17 and the fixed ring 35 The restri...

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Abstract

The invention relates to an eye model device for simulating eye lacrimal passage irrigation, which adopts a basic eye lacrimal passage structure consisting of a nasolacrimal duct, a lacrimal duct, a lacrimal sac, a lacrimal canaliculus, a lacrimal punctum and a lacrimal gland, the image is vivid, the lacrimal canaliculus is made of a rubber material, and the irrigation requirement of horizontal needle insertion is conveniently met. A switchable arc-shaped plate structure is utilized on the nasolacrimal duct to simulate two groups of situations with and without dacryocystitis, the severity degree of dacryocystitis is judged according to the color change degree of mixed liquid, and meanwhile, through holes with adjustable radius sizes are formed in the nasolacrimal duct by utilizing a multi-component indexing plate to simulate different narrow situations of the nasolacrimal duct. The narrow condition is analyzed and researched by comparing the water quantity in the measuring cylinder in the device. The device can easily simulate five lacrimal passage flushing effects, is simple to operate and diverse in whole simulation process mode, plays a role in guiding learning of clinical eye passage flushing work, mobilizes the interest and passion of learners, and is high in practicability and suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of medical facilities, in particular to an eye model device for simulating eye lacrimal duct flushing. Background technique [0002] Lacrimal irrigation is a common nursing operation in ophthalmology. Lacrimal irrigation is a method of injecting solution from the lacrimal point to the lacrimal duct with a blunt round needle. It is suitable for cleaning the dirt in the lacrimal duct before intraocular surgery, assisting in the diagnosis of lacrimal duct stenosis, blockage or judging the location of the blockage in patients with epiphora; it can be removed for patients with chronic dacryocystitis accompanied by severe corneal ulcers or systemic diseases that are not suitable for surgery. Inject pus in the lacrimal sac and inject drugs to treat lacrimal duct infection and relieve symptoms; Routine washing before and after dacryocystorhinostomy to remove accumulated secretions in the lacrimal sac or eliminate po...

Claims

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Application Information

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IPC IPC(8): G09B23/28
CPCG09B23/28
Inventor 景丹丹刘彦
Owner PEOPLES HOSPITAL OF HENAN PROV
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