Snake bone assembly component, active bending segment, endoscope and assembly method

CN118902360BActive Publication Date: 2025-02-28HUNAN HUAXIN MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411401417.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-02-28
Estimated Expiration
2044-10-09

AI Technical Summary

Technical Problem

When the active bent section of the endoscope is bent, the distal end is bent before the proximal end, resulting in a larger area of ​​scanning the distal end, which increases the difficulty for the doctor during operation.

Method used

Using a snake bone assembly assembly, adjacent snake bone joints are connected through a riveted piece, and a damping piece is provided at the connection of adjacent snake joints at the proximal end of the active bending section. The friction force generated by the damping piece from the proximal end to the distal end is gradually reduced, so that the distal end of the active bending section is bent first.

Benefits of technology

The bending method of bending the distal end of the active bending section is realized first and later bending the proximal end, which reduces the area sweeping the distal end during bending, reduces the difficulty of the doctor's operation, and has the advantage of applying less force to the traction rope and easy to achieve large-angle bending.

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Abstract

The present invention discloses a snake-bone assembly component, an active bending section, an endoscope and an assembly method, and relates to the technical field of medical devices. The snake-bone assembly component includes a rivet, which is used to connect two adjacent snake-bone sections of the active bending section. The snake-bone assembly component also includes a damping member, which is at least located at the connection between two adjacent snake-bone sections at the proximal end of the active bending section. From the proximal end to the distal end, the friction force generated by the damping member gradually decreases, and the damping member has a first state and a second state. The friction force generated by the damping member in the first state is greater than the friction force generated in the second state. When the active bending section changes from a straight state to a bent state, at least one group of damping members on the active bending section switches from the first state to the second state. The snake-bone assembly component can make the distal end of the active bending section bend first and the proximal end bend later; and when the active bending section is bent, it also has the advantages of applying less force to the traction rope and being easy to achieve large-angle bending.
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Citation Information

Patent Citations

  • Endoscope

    JP1990017103U

  • Endoscope

    JP1999009543A