Lacrimal passage flushing model

Abstract

The invention discloses a lacrimal passage flushing model, relates to the field of nursing teaching models, and provides an ophthalmology department lacrimal passage flushing model capable of presenting different blockage conditions of a lacrimal passage. The model comprises a simulated lacrimal passage and a main control device, the simulated lacrimal passage comprises an upper lacrimal punctum, an upper lacrimal ductule, a lower lacrimal punctum, a lower lacrimal ductule, a lacrimal duct, a lacrimal sac and a nasolacrimal duct, the lacrimal sac is connected to the upper end of the nasolacrimal duct, one end of the lacrimal duct is connected with the upper lacrimal ductule and the lower lacrimal ductule, the other end of the lacrimal duct is connected with the nasolacrimal duct and is close to the lacrimal sac, and the upper lacrimal punctum is located at the end of the upper lacrimal ductule. The lower lacrimal punctum is positioned at the end part of the lower lacrimal ductule; the upper lacrimal ductule, the lower lacrimal ductule, the lacrimal duct and the nasolacrimal duct are respectively provided with a pipe controller for controlling the opening and closing of a pipeline; and the main control device can enable each pipe controller to work. According to the invention, the conditions of normal lacrimal passage, blockage, stenosis, dacryocystitis and false passage puncture of lacrimal canaliculi can be simulated, so that various lacrimal passage flushing phenomena in the background technology are presented in teaching, and learning of students is facilitated.

Description

technical field [0001] The invention relates to the field of nursing teaching models, in particular to a lacrimal duct flushing model. Background technique [0002] Lacrimal duct flushing is a common nursing operation in ophthalmology. It is mainly used to inject solution into the lacrimal duct with a blunt round needle from the punctum, thereby assisting doctors in diagnosing lacrimal duct-related diseases. [0003] Different phenomena are encountered during lacrimal duct flushing, representing different obstructions of the lacrimal duct. 1. Apply light pressure to the syringe and it will be unobstructed and the patient's nasopharynx has flushing fluid flowing in, indicating that the lacrimal duct is normal and not blocked. 2. If the needle does not enter the lacrimal sac, the flushing fluid flows back from the origin, indicating that the lacrimal canaliculus on this side is blocked. 3. When the needle does not enter the lacrimal sac, the flushing fluid flows out from the...

AI Technical Summary

Problems solved by technology

Lacrimal duct flushing technique is one of the skills that ophthalmology nurses must master. Ordinary ophthalmology nurses learn this technique through books and video teaching, and then gradually accumulate experience in patients. However, this operation is delicate and easy to cause bleeding, pain, subcutaneous Accidents such as hematoma and cornea damage occur, so it is not suitable for inexperienced beginners to operate on patients' eyes

[0006] The general teaching mold is an ordinary teaching mold, and the material is made of ordinary plastic. It is relatively rough, and it is impossible to control the blocked part of the lacrimal duct. Therefore, there is a need for a teaching model that can help students to try, evaluate, judge, and accumulate experience for many times. It is urgently needed. A new type of lacrimal duct irrigation teaching mold that can control the blocked part of the lacrimal duct to help eye nurses understand, judge and learn

Images