A nozzle assembly, an endoscope distal end assembly, and an endoscope

CN116898380BActive Publication Date: 2026-07-07HUNAN VATHIN MEDICAL INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN VATHIN MEDICAL INSTR CO LTD
Filing Date
2023-08-24
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The nozzle assembly of existing endoscopes can only clean the lens and cannot clean human tissue at the same time, resulting in the lens being unable to clearly capture the clear morphology of the tissue.

Method used

Design a nozzle assembly comprising a first channel and a second channel for spraying and cleaning a lens and tissue, respectively. The cleaning object is controlled by sliding a flow channel switch, providing multiple cleaning modes. The inner wall of the lens mount is used as the flow channel wall to achieve miniaturization of the nozzle assembly or improve the cleaning effect.

Benefits of technology

It enables simultaneous cleaning of the lens and tissue, improving the accuracy and cleaning effect of endoscopic inspection. It is stable, easy to operate, and easy to control.

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    Figure CN116898380B_ABST
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Abstract

The application discloses a nozzle assembly, an endoscope front end assembly and an endoscope, and relates to the technical field of medical devices. The nozzle assembly is provided with a first channel and a second channel on the nozzle, a first slot and a second slot are formed in the side wall of the support seat, the first slot and the second slot are respectively surrounded by the inner wall of the lens seat to form a first flow channel and a second flow channel, the first flow channel is communicated with the first channel, the second flow channel is communicated with the second channel, a first switching port and a second switching port that are at least partially misaligned are arranged on the flow channel switching piece, the proximal end of the flow channel switching piece is communicated with the cleaning liquid pipe, the support seat is further provided with a mounting hole in the axial direction, the flow channel switching piece is slidably mounted in the mounting hole, and based on the sliding of the flow channel switching piece, the liquid in the cleaning liquid pipe is sprayed out through the first channel and / or the second channel. The nozzle assembly can control the cleaning object of the nozzle by controlling the sliding of the flow channel switching piece, and the nozzle assembly is also beneficial to the miniaturization of the nozzle assembly.
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