Endoscope Head Miniaturization via Conductive Traction Cable Anchorage

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Solution Overview

Problem

The miniaturization of endoscopes is hindered by the difficulty in integrating devices like LEDs, cameras, and working channels due to the need for smaller endoscope heads, which complicates the integration of electrical supply systems.

Innovation Solution

An endoscope head design featuring a conductor track and traction cables integrated into the endoscope head body, allowing for electrical connection and eliminating the need for a space-consuming electrical supply cable, enabling a cost-effective and space-saving design with reduced material usage and increased design freedom.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the endoscope head is made smaller for miniaturization, then the size of the endoscope head is reduced, but the integration of devices such as LEDs, cameras, and working channels becomes increasingly difficult

Engineering Contradiction:
Improveendoscope head sizeVSAvoidintegration complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into the traction cable anchorage: it serves as both the mechanical anchor point for the traction cable and as an electrical connection point (electrically conductive body) to the conductor track. This merging of mechanical and electrical functions at a single location enables miniaturization while maintaining device integration capability.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a conventional electrical supply cable is used for the electronic instrument, then reliable electrical supply is achieved, but space is consumed and miniaturization is hindered

Engineering Contradiction:
Improveelectrical supply reliabilityVSAvoidendoscope head size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The traction cable is designed to serve dual purposes: mechanical function (controlling deflection through the anchorage system) and electrical function (supplying power through the conductive anchorage body to the conductor track). This multi-functionality eliminates the need for separate electrical supply cables, enabling miniaturization while maintaining reliable electrical supply.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If multiple separate components are used for electrical supply and mechanical anchoring, then functional reliability is maintained, but the number of parts and assembly steps increases

Engineering Contradiction:
Improvefunctional reliabilityVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the mechanical anchoring function and electrical connection function into a single integrated component (the traction cable anchorage with conductive body). This reduces the number of separate parts and assembly steps while maintaining both mechanical reliability and electrical connectivity through the unified design.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3076851B1Endoscope head and endoscope
Publication Date: 2022.08.03 DIGITAL ENDOSCOPY
  • EP3076851B1 patent drawingFigure 1(A)~1(C)
  • EP3076851B1 patent drawingFigure 2(A)~2(B)
  • EP3076851B1 patent drawingFigure 3

AI summary

The invention relates to an endoscope head on a deflecting end of an endoscope, comprising a moulded interconnect device (MID) moulded part (1) comprising at least one conducting path (21-28) applied on the same; at least one electronic instrument (3) which is seated in the MID moulded part (1) and can be electrically supplied by at least one conducting path (21-28) thereof; and a sensor (6). The invention further relates to an endoscope head on a deflecting end of an endoscope, comprising an endoscope head body (1) with at least one conducting path (21-28) applied on the same; at least one electronic instrument (3) which is seated in the endoscope head body (1) and can be electrically supplied by at least one conducting path (21-28) thereof; and at least one traction cable (4) the traction cable anchoring (41) thereof being seated in the endoscope head body (1); wherein the at least one traction cable (4) is electrically connected to the at least one conducting path (21-28) of the endoscope head body (1).