Operation Guide for Large Ear Anatomical Model

The anatomical model of the large ear is a commonly used tool in medical education and clinical training, especially in otology education and related surgical training, where it plays an important role. This model usually includes the shape of the ear, the ear canal, the eardrum, the ossicles and other parts, which can help students and doctors understand the anatomical structure and function of the ear. The following is an operation guide for the large ear anatomical model, which is applicable to multiple scenarios such as medical learning, surgical simulation, and patient education.

 1.  preliminary inspection and understanding of model structure

Before starting to use the large ear anatomy model, it is first necessary to be familiar with all the components of the model. Models typically include the following main structures:

  Outer ear  : Including the auricle and ear canal.

  Middle ear  : It includes the eardrum and ossicles (malleus, incus, stapes).

 Inner ear  : It includes structures such as the cochlea and vestibule (some advanced models may show the structure of the inner ear).

Ensure that the model is intact and can correctly display the ear canal, eardrum and other parts.

 2. Observe and learn the structure of the ear canal

By operating the model, one can first observe the appearance of the ear canal and the shape of the eardrum. Understanding the direction of the ear canal and the position of the eardrum is helpful for mastering the basic anatomy of the ear. At this point, the focus can be placed on:

  Shape of the ear canal  : Observe the curvature and length of the ear canal to understand how it guides the transmission of sound.

  Structure of the eardrum  : Examine the integrity of the eardrum and understand its relationship with the middle ear.

 3. Simulate ear diseases

Large ear anatomical models are often used to simulate ear diseases, such as perforated eardrums and ear canal infections. When conducting disease simulations, one can:

  Simulating Ear Canal Blockage  : By inserting different objects into the model, the situation of ear canal blockage is simulated to help students understand the impact of ear canal cleanliness and unobstructedness on hearing.

  Perforation of the eardrum  : By simulating eardrum injury, it demonstrates its impact on hearing and the surgical procedures in clinical treatment.

During the simulation process, by disassembling the model and observing pathological changes such as ruptured eardrums and effusion, learners can be helped to understand the pathogenesis of different ear diseases.

 4. Surgical operations and training

In ear surgery training, the anatomical model of the large ear also has an important simulation function. Through the model, students can repeatedly practice ear surgery operations, such as eardrum repair and ossicular reconstruction. The operation steps include:

  Ototomy  : Simulate the incision of the ear canal and perform ear cleaning.

  Eardrum repair surgery  : Use miniature tools to repair the eardrum, simulate the actual surgical environment, and familiarize with the operation techniques.

In surgical simulation, the detailed anatomical structure of the model helps trainees improve their surgical skills and reduce errors in actual operations. Especially in high-difficulty ear surgeries, it can effectively prevent complications and increase the success rate.

The large ear anatomical model is a highly effective medical learning tool. It not only helps students and doctors understand the anatomical structure of the ear but also can be used for disease simulation, surgical training, and patient education. Through the operation of the model, one can deepen the understanding of ear diseases and treatments, enhance clinical skills, and thereby better serve patients. During the usage process, correct operation and maintenance will ensure the long-term effectiveness of the model and provide lasting support for medical education.