Integrally Formed Endoscope Insert Tube with Staggered Grooves

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Solution Overview

Problem

Existing endoscopes with integrally formed insert tubes face challenges in connecting the bending section and tube due to increased diameter requirements, leading to cost increases, reduced connection reliability, and loss of waterproof and reusability features as components are added.

Innovation Solution

An insert tube integrally formed with wide radii of curvature, featuring a catheter with a distal section, bending section, and extend section made of metal material, with staggered first and second line grooves on the bending section to enhance curvature and extensibility, allowing for elastic bending at various angles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the bending section and tube are connected through separate components, then the connection reliability is improved, but the device complexity and cost increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The bending section and tube are merged into a single integrally formed insert tube made of metal material, eliminating separate connection components and reducing device complexity while maintaining connection reliability through the integral structure

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If the diameter of the bending section and tube are increased to accommodate more components, then the components can be disposed, but the cost increases and connection becomes difficult

Engineering Contradiction:
Improvecomponent accommodationVSAvoidmanufacturing ease
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple components are nested within the lumen of the insert tube, allowing component accommodation without increasing the outer diameter, thereby maintaining ease of manufacture and connection while achieving versatility

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If the insert tube is made with wide radii of curvature, then the bending flexibility is improved, but the structural strength may be reduced

Engineering Contradiction:
Improvebending flexibilityVSAvoidstructural strength
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The insert tube is constructed as a composite structure with an inner tube and an outer tube, where the outer tube provides structural strength and the inner tube allows bending flexibility with wide radii of curvature, achieving both ease of operation and structural integrity

Inventive Principle:
Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution enables flexible and adjustable bending of the insert tube while maintaining waterproof integrity and reusability, reducing costs by optimizing the connection between the bending section and tube, and enhancing the endoscope's functionality.

Implementation Method 1

The bending section and the extend section are integrally formed through a metal material... the bending section is elastic and bent at any angle as needed

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10918268B2Insert tube and endoscope using the same
Publication Date: 2021.02.16 OPCOM
  • US10918268B2 patent drawing
  • US10918268B2 patent drawing
  • US10918268B2 patent drawing

AI summary

An insert tube and an endoscope using the same are provided. The insert tube comprises a catheter. The catheter comprises a distal section, a bending section and a extend section, and the distal section. The bending section and the extend section are integrally formed through a metal material. A plurality of a first line groove and a plurality of second line groove are formed and arranged in staggered relation on two corresponding sides of the bending section along the central axis direction of the catheter, respectively. At least one the second line groove is arranged between the first line grooves. The first line groove and the second line groove have a first arc length and a second arc length, respectively. A length of the first arc length is greater than a length of the second arc length.