Lacrimal sac scalpel
The utility model relates to a lacrimal sac scalpel which comprises a scalpel handle, a central control rod, a gear transmission mechanism and a blade. A sliding groove allowing the center control rod to slide is formed in the cutter handle, a cavity used for containing the gear transmission mechani...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a lacrimal sac scalpel which comprises a scalpel handle, a central control rod, a gear transmission mechanism and a blade. A sliding groove allowing the center control rod to slide is formed in the cutter handle, a cavity used for containing the gear transmission mechanism is formed in the cutter handle, the gear transmission mechanism comprises a gear and a rack, the rack is fixedly connected with the center control rod, the gear is meshed with the rack, the gear is rotatably connected with the cutter handle, the rack can horizontally move in the cavity, and the blade is detachably connected with the gear. An operator holds the knife handle with a hand to feed the blade into a nasal cavity to reach a dacryocyst part, the dacryocyst mucosa is longitudinally ripped firstly, the driving block is pushed to move through fingers, so that the central control rod and the rack are driven to slide, the gear is driven to rotate, the blade is driven to clockwise rotate by 90 degrees, and the |
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