Endoscopic sinus surgery

When examining a patient, the traditional way often brings pain to the patient, while when examining an otolaryngoscope, the patient can sit or lie half-down. The doctor puts the patient's ear, throat and nasal cavity in, and then carefully examines the parts that need to be known. Because of the good illumination and high definition of medical endoscope, we can clearly see the deep and narrow structures that can not be directly peeped under the frontal endoscope. Such as uncinate process, ethmoid vesicle, maxillary sinus ostium, olfactory cleft, nasopharyngeal eustachian tube ostium, adenoid tissue, etc.

Traditional nasal examination methods can no longer be applied to modern medicine. At present, the examination of diseases such as nasal cavity is mainly realized by medical endoscope. At present, foreign video endoscopes are expensive, while domestic video endoscopes have few functions. Nasal surgery is a complicated operation in minor surgery, which requires very high technology and requirements. Since the advent of nasal endoscope, nasal surgery has made a new leap. After the application of nasal endoscope, it can go deep into the nasal cavity and take the polyp out of the groove to achieve clinical cure. The nasal endoscope system is equipped with a cold light source, a camera and a display, which can penetrate into the nasal cavity, so that all the lesions hidden in the nasal cavity can be clearly displayed. Its brightness is 20 times that of the shadowless lamp, and the small hole of 3.5 mm can enlarge the diseased tissue by 500 times. The whole process has a clear vision and can be seen at a glance, which makes the operation achieve a more delicate effect and reach areas that were difficult to reach before. It transforms the traditional destructive surgery into a functional surgery that preserves the physiological function of the nasal cavity as much as possible on the basis of completely removing the lesions. It has the advantages of less trauma, quick recovery, greatly improved cure rate and reduced pain of patients.

This functional endoscopic minimally invasive surgery can not only effectively treat nasal diseases such as rhinitis, sinusitis, nasal polyps, deviated nasal septum, epistaxis, sinus cyst, benign and malignant tumors of sinus, but also make some diseases that had to be completed by facial incision or nasal approach, among which pituitary tumor, cerebrospinal fluid rhinorrhea, optic nerve injury, malignant exophthalmos and other surgical effects are better than traditional brain surgery and ophthalmology methods.

Clinically, it is also found that hemorrhagic diseases such as hypertension, diabetes and chronic nasal inflammation are easy to cause vascular injury and intractable epistaxis. In the past, because the bleeding point was invisible, the anterior and posterior nostril packing method was usually used, which brought great pain to patients and the hemostasis efficiency was not high. Now nasal endoscope can directly find the bleeding point under direct vision, and use plasma knife or electrocoagulation knife to stop bleeding, which completely corrects the mistake of traditional location of bleeding point and fundamentally improves the hemostasis method. Using 1 LED light source and white LED light source, the illumination of the light source reaches above 300LUX in the working range, which saves the heavy cold light source and makes the color close to the sunlight, which makes the displayed image more realistic, reduces the cost, prolongs the service life, and makes the observation of the scenery clear, which changes the external way adopted by traditional rhinologists. This is especially important for rhinologists who deal with "hole eyes" all day, just like seeing the light in the dark.

4. Wide perspective. 6.2 ㎜ (0), 5.2 ㎜ (0), 4.4 ㎜ (0) and 6.2 mm (90), with four kinds of endoscopes with different diameters and angles, doctors can observe the nasal cavity and sinuses in all directions.

3. High resolution, no focal length limitation, and clear far and near scenery.

4. The nasal endoscope can enlarge the image. Moving the nasal endoscope from 3 cm away from the observation scene to 1 cm can enlarge the observation object.

⒌ The nasal endoscope can be connected with the camera system, so that the operation method and cavity can be completely displayed on the monitor, which is beneficial for the operation director, operator and assistant to observe. It has changed the disadvantage that others can't see clearly when a person performs surgery in the nasal department for many years, and learning surgery depends on his own understanding.