For more than a year, Mr. Wei, 34, has persistent tinnitus in his ears. He can't hear others usually, but when he is noisier, he hears it more clearly, and the cause has not been diagnosed. After arriving at the First Hospital of Harbin Medical University, Professor Zhang Tianhong, the director of the Second Ear, Nose and Throat Ward, diagnosed him with "ear sclerosis" in both ears known as "Webster's Hearing". Professor Zhang Tianhong used the German Leica laser system to make a small hole of less than 1mm in Mr. Wei's right ear, and implanted a 4.5mm titanium alloy ossicle. The patient's hearing recovered well. This is the first laser-guided artificial osseous bone implantation in our province.

"Wechsler's Misunderstanding" is a rare disease that is unique to otosclerosis. The best treatment is surgery, which removes the hardened ossicles and replaces them with titanium alloy bones to improve hearing.

Professor Zhang Tianhong introduced that the ossicle to be replaced is called the sacrum, which is only 2.6-3.4mm long and weighs 2-4mg. It is the smallest and lightest bone in the human body. Patella sclerosis loses its ability to conduct sound waves, causing severe hearing loss and even severe conductive deafness. Otosclerosis manifests as slow and progressive hearing loss in both ears, and the symptoms of tinnitus are often misdiagnosed as sensorineural deafness, which delays the treatment of patients.

Ear sclerosis is treated with artificial ossicular implants. The doctor used a microscope to manually turn the patella floor into a small 1mm hole in the narrow ear canal and implanted an artificial auditory bone of titanium alloy. This surgery requires extremely high skills and techniques from doctors, and the error must not exceed 1 micron, otherwise it will penetrate the vestibular window membrane, cause inner ear infection and facial nerve damage, resulting in irreversible sensorineural hearing loss, permanent dizziness and facial paralysis. There are only a few large hospitals in China that can do it.

How to carry out this operation more safely has become the direction explored by otologists. The Department of Otorhinolaryngology of the First Hospital of Harbin Medical University has introduced the German Leica laser system for this purpose. The laser is used to precisely drill holes under the guidance of optical fibers. At the same time, the laser stops when it encounters water, which does not damage the vestibular window film, which avoids the risk of human operation and ensures manual labor. Safe implementation of osseous implantation. Professor Zhang Tianhong only took 30 minutes for Mr. Wei's operation. After hearing, his hearing improved significantly and he could communicate with people normally.

The second ward of the Department of Otorhinolaryngology of the First Hospital of Luohe Medical University has used the sacrum floor laser drilling technology to treat many cases of otosclerosis, and all of them have recovered well. In recent years, the second ward of the ENT department has carried out artificial hearing bone implantation for otitis media, otosclerosis and other conductive deaf patients to improve the hearing of nearly 1,000 patients. It has also launched a small incision round window approach to minimally invasive cochlear implantation surgery. Wait, have rich experience in minimally invasive and precise treatment of ear diseases.

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