An eye model device for simulating lacrimal duct flushing

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

Active Publication Date: 2022-07-29
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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  • An eye model device for simulating lacrimal duct flushing
  • An eye model device for simulating lacrimal duct flushing
  • An eye model device for simulating lacrimal duct flushing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1, an eye model device for simulating lacrimal duct flushing includes a model bracket 1, and a transparent nose model 2 is installed on the bracket 1. For the simulation of the lacrimal duct, we usually have five This situation needs to be simulated. The first case is for the upper lacrimal canaliculus 14 and the lower lacrimal canaliculus 14. If the flushing liquid is injected into the lacrimal canaliculus 14 through the puncta at the ends of the two groups of lacrimal canaliculi 14, the flushing liquid here will We can use diluted potassium permanganate solution, which is a light purple-red liquid, and is odorless and non-toxic. If the flushing liquid returns from the original path of the punctum, it means that the corresponding lacrimal canaliculus 14 is blocked. The second situation is that if the flushing liquid returns There is no resistance to the liquid, and the liquid enters the nasal cavity or pharynx smoothly, which means that the lacrimal duct is u...

Embodiment 2

[0041] Embodiment 2, on the basis of Embodiment 1, the dacryocystis 12 inflammation 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 back plate 3, and the The front end of the rotating shaft 17 is installed with two sets of arc-shaped plates 18 arranged symmetrically in the center. The arc-shaped plates 18 are matched with the rectangular gap 16 to realize the blocking of the rectangular gap 16. By rotating the rotating shaft 17, different The arc-shaped plate 18 on the side cooperates with the rectangular gap 16 to achieve sealing, and a rubber sealing ring structure is arranged between the arc-shaped plate 18 and the rectangular gap 16 to prevent the two from causing the nasolacrimal duct 11 in the process of cooperation. The liquid flows out from the gap between the two, the two sets of arc-shaped plates 18 are connected with a liquid storage tank 19...

Embodiment 3

[0044] Embodiment 3, on the basis of Embodiment 2, the rotation locking device includes a fixing ring 35 installed at the rear end of the back plate 3, the fixing ring 35 is provided with two sets of limit grooves 36 in the circumferential direction, and also includes a fixing ring 35 along the circumference. Two sets of radial blocks 37 are circumferentially opened on the rotating shaft 17 , the ends of the radial blocks 37 are slidingly fitted with a limit block 38 in the radial direction, and a limit block 38 is connected with the radial block 37 . The radially arranged first spring 39, the limit block 38 cooperates with the limit groove 36 to lock the rotation of the rotating shaft 17, and one or two sets of limit blocks 38 are installed on the end of the rotating shaft 17. The first spring 39 is compressed by manually pinching the two sets of limit blocks 38 to the sliding-fit drive plate 40 , so that the limit blocks 38 are disengaged from the limit grooves 36 . The rest...

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Abstract

The invention relates to an eye model device for simulating lacrimal duct flushing. The invention adopts the nasolacrimal duct, common lacrimal duct, lacrimal sac, lacrimal canaliculi, punctum and lacrimal gland to form the basic lacrimal duct structure of the eye. Realistic, the lacrimal canalicus is made of rubber material, which is convenient to achieve the flushing requirements of horizontal needle insertion. The switchable arc-shaped plate structure is used on the nasolacrimal duct, which will simulate the two conditions of dacryocystitis and no dacryocystitis. The severity of dacryocystitis is judged by the degree of color change of the nasolacrimal duct. At the same time, a multi-component scale plate is used to make a through hole with an adjustable radius on the nasolacrimal duct to simulate different stenosis of the nasolacrimal duct. The method can easily simulate five kinds of lacrimal duct flushing effects, the operation is simple, and the whole simulation process has various modes, which can guide the study of the clinical eye canal flushing work and mobilize the learners. Interest and passion, strong practicability, suitable for promotion and use.

Description

technical field [0001] The invention belongs to the technical field of medical facilities, and particularly relates to an eye model device for simulating lacrimal duct flushing of the eye. Background technique [0002] Lacrimal irrigation is a common nursing operation in ophthalmology. Lacrimal irrigation is a method of injecting a solution from the punctum into the lacrimal duct with a blunt round needle. It is suitable for cleaning the dirt in the lacrimal duct before intraocular surgery to assist in diagnosing whether the lacrimal duct is stenosis, obstruction or judging the location of the obstruction in patients with epiphora. Injection of pus in the lacrimal sac to treat lacrimal duct infection and relieve symptoms; routine irrigation before and after dacryocystorhinostomy to remove accumulated secretions in the lacrimal sac or to eliminate postoperative coagulation or exudate; neonatal dacryocystitis combined Treatment for blocked tear ducts. Possible complications ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/28
CPCG09B23/28
Inventor 景丹丹刘彦
Owner PEOPLES HOSPITAL OF HENAN PROV
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