Catheter and assembling method thereof, sputum suction tube assembly and endoscope kit

By using a transparent membrane and a fixing element for a sealed connection at the distal end of the catheter, the problem of poor stability of the transparent slide during the closure of the distal end opening of the catheter is solved, enabling clear imaging and safe use of the endoscope, simplifying the assembly process, and improving the installation stability and sealing of the transparent membrane.

CN121846471APending Publication Date: 2026-04-14HUNAN HUAXIN MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202610331807.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the current process of closing the distal opening of the catheter, the stability of the transparent glass slide is unreliable, resulting in poor imaging quality and difficulty in assembly, which affects the effectiveness and safety of the endoscope.

Method used

A transparent membrane is used to cover the catheter opening and is sealed to the catheter body and the transparent membrane by a fastener. The fastener is located on the outer periphery of the edge of the transparent membrane to ensure that the transparent membrane is fixed on the outer periphery of the catheter body, thereby improving the installation stability of the transparent membrane and the visibility of the assembly.

Benefits of technology

It achieves clear imaging of the endoscope, avoids endoscope contamination, simplifies the assembly process, improves the installation stability and sealing of the transparent membrane, and ensures the safety and structural stability of the catheter.

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Abstract

The invention provides a catheter and an assembling method thereof, a sputum suction tube assembly and an endoscope kit, and relates to the technical field of medical instruments. The catheter comprises a catheter body, a transparent film and a fixing piece, the transparent film covers the opening, and a regular light-transmitting area can be formed through the end face of the opening, so that the light-transmitting area is smoother and more reliable, and the imaging quality is effectively improved. The fixing piece is located on the periphery of the edge part of the transparent film. The catheter body, the transparent film and the fixing piece are relatively fixed and connected in a sealed mode. The fixing position of the transparent film can be arranged on the periphery of the catheter body on the basis that the catheter opening is sealed, so that the light-transmitting part and the fixing part of the transparent film are independently arranged. Even if the glue overflows, shrinks and the like occur in the assembly process, the transparent film can still meet the design requirements even if the light-transmitting part, corresponding to the opening, of the transparent film only changes slightly or does not change, and the image acquisition effect of the endoscope is ensured.
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