According to the angle of the mirror, there are 0, 30 and 70. Wide angle 0, wide angle 30, wide angle 70. Super wide angle 0, super wide angle 30, super wide angle 70.
There are also disinfection methods, mirrors made of high-temperature resistant materials, and mirrors that cannot withstand high temperatures. The lens has sapphire mirror and ordinary mirror.
As for the length, it is generally 330mm for abdominal cavity, 105mm and 50mm for otoscope, 175mm for paranasal sinus endoscope, laryngoscope and arthroscopy, 280mm for children's bronchoscope, 302mm for cystoscope and transurethral resection of prostate, and 205mm for children's cystoscope, which are relatively common and can be regarded as conventional specifications.
As for other strabismus, it is necessary to treat it specially.
Also pay attention to the difference between the lens diameter and the mirror body diameter. The general diameter is also divided according to the types of instruments, and the most common ones are φ 4 mm and φ10 mm. Children's instruments are generally φ 2.7 mm, of course, there are always some specially customized instruments. So it is impossible to cover everything. Generally speaking, as long as the lens can be completely clamped and placed safely.
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