Angle-freely-changeable nasal sinus mirror

Abstract

The invention discloses an angle-freely-changeable nasal sinus mirror, comprising a handle, a stainless steel tube, an observation device and an angle adjusting device. The angle adjusting device comprises an end plate arranged at the end of the stainless steel tube. A transparent front cover, wherein an outwardly protruding cover is arranged at the front end of the end plate, and a cavity is formed between the transparent front cover and the end plate; Flip plate, which can be flipped with respect to the end plate, and the flip angle range is not less than 0 DEG to 75 DEG; a steel wire with one end connected to the flap and the other end extending to the handle; a telescopic adjust mechanism is arranged on the handle and is connected with the steel wire to control the steel wire to move along the stainless steel pipe and drive the turnover plate to turn over; and the objective lens of the observation device is arranged on the flap. The angle-freely-changeable nasal sinus mirror can see the best operation position in any direction of nasal surgery, and only one nasal sinus mirror is required for the whole operation process, so that the operation is convenient to carry out and the equipment resources are saved. The angle-freely-changeable nasal sinus mirror can convert the lens angle to see the best operation position in any direction of nasal surgery.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a sinus mirror with freely convertible angles. Background technique [0002] At present, when treating rhinitis, sinusitis and other nasal cavity diseases, sinus mirrors are basically used. The main structure of sinus mirrors includes: a handle, a stainless steel tube installed at the front end of the handle, and an observation device installed in the stainless steel tube and the handle. The main components of the observation device are objective lens, light guide fiber and eyepiece. The objective lens and eyepiece are respectively arranged at the two ends of the stainless steel tube and the handle. The most commonly used objective lens is the CCD objective lens, and the image signal collected by it is sent to the eyepiece through the transmission line; One end of the optical fiber is connected to the light guide interface provided on the side of the handle to access the light ...

AI Technical Summary

Problems solved by technology

But even so, when medical staff perform nasal surgery, they often need to replace sinus mirrors of different degrees due to different operating angles, and it often happens in clinical work that several sinus mirrors need to be used in the same sinus surgery. The case of sinus mirrors with different lens powers, but because the lens angles are set in a series of steps, it cannot truly cover all angles. Even if the lens with multiple angles is replaced, it may not be possible to observe the best surgical site; In and out of the nasal cavity, the operation is troublesome, and repeated disinfection is required, which brings a lot of inconvenience to the operation and also causes a waste of surgical equipment resources.

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