Disposable Endoscope System with Detachable Control Base

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Solution Overview

Problem

The high cost and complex sterilization requirements of reusable medical endoscopes lead to increased operational expenses and risks of cross-infection, while the development cycle of endoscopes focuses on durability and resistance, making them even more expensive and limiting their availability.

Innovation Solution

A disposable endoscope system with a tubular part having multiple joints, linear transmission parts for bending, a camera unit, and a wire harness, where the driving mechanism is separated from the image collection parts, allowing for a simpler and cost-effective design that eliminates the need for sterilization and reduces equipment costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If reusable endoscopes are used to reduce cost, then acquisition cost is reduced, but sterilization complexity and time cost increase

Engineering Contradiction:
Improveacquisition costVSAvoidsterilization complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent applies the disposable principle by designing an endoscope that is intended for single use only. The entire endoscope including the tubular part, camera unit, and transmission wires is discarded after one use, eliminating the need for complex sterilization procedures. This resolves the contradiction by accepting higher per-use material cost in exchange for eliminating sterilization complexity and time cost.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Reliability

If sterilization procedures are implemented to prevent cross infection, then patient safety is improved, but time cost and operational expense increase

Engineering Contradiction:
Improvepatient safetyVSAvoidsterilization time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

By making the endoscope disposable, the patent eliminates the need for sterilization procedures entirely. Each new endoscope is factory-sealed and sterile, and after single use it is discarded, ensuring patient safety without requiring time-consuming sterilization processes in the hospital setting.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of manufacture

If expensive endoscopes are equipped to reduce acquisition cost per unit, then budget constraint is relaxed, but the number of equipped endoscopes is limited

Engineering Contradiction:
Improveacquisition cost per unitVSAvoidnumber of equipped endoscopes
Core Design Contradiction:
Ease of manufactureVSQuantity of substance

Solution Approach 1:

The disposable endoscope design significantly reduces the acquisition cost per unit compared to reusable endoscopes. Although the per-unit cost is higher than mass-produced disposable items, the elimination of sterilization infrastructure requirements and the ability to equip multiple low-cost disposable units per procedure allows hospitals to increase the total number of endoscopes available without proportionally increasing budget requirements.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

4Reliability

If sterilization equipment and dedicated chambers are set up, then sterilization capability is improved, but operating cost increases

Engineering Contradiction:
Improvesterilization capabilityVSAvoidoperating cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The disposable endoscope eliminates the need for dedicated sterilization chambers and equipment entirely. Hospitals can simply store unopened disposable endoscopes in controlled environments and use them directly, replacing the need for expensive sterilization infrastructure and reducing operating costs while maintaining sterilization capability through factory sealing.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

5Duration of action of stationary object

If frequent cleaning and sterilization are performed to extend service life, then durability is improved, but environmental pollution increases

Engineering Contradiction:
Improveservice lifeVSAvoidchemical waste
Core Design Contradiction:
Duration of action of stationary objectVSObject-generated harmful factors

Solution Approach 1:

By switching to disposable endoscopes, the patent eliminates the need for repeated cleaning and sterilization cycles. While the disposable unit itself becomes waste, it avoids the generation of large amounts of chemical waste from sterilization agents, cleaning solutions, and disposable protective gear required for reusable endoscope maintenance.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentEP3202305B1Disposable endoscope and system
Publication Date: 2020.07.01 DONG TAO
  • EP3202305B1 patent drawingFigure 1
  • EP3202305B1 patent drawingFigure 2
  • EP3202305B1 patent drawingFigure 3

AI summary

A disposable endoscope (200) and system, the disposable endoscope (200) comprising: a tubular component (201), a linear drive piece (202) controlling the tubular component (201) to bend, an image pickup unit (203) installed at the front end of the tubular component (201) and a wiring harness connected thereto, a cladding layer (204) wrapping around the integral structure, and a connector head (205) and a disposable fixing piece (206) both disposed at one end of the linear drive piece (202) away from the tubular component (201). A first connector (2021) is fixed at a connector head (205) at one end of the linear drive piece (202) and is detachably engaged with a corresponding second connector (301) of an external control base (300); the first connector (2021) is fixed by the disposable fixing piece (206) with respect to the connector head (205), and can be moved in a length direction within a through hole (2051) of the connector head (205) after the disposable fixing piece (206) is removed. The disposable endoscope system separates the control base (300) used to control a drive from the disposable endoscope (200) inserted into a cavity of a human body and used to capture images, realizing disposability of an endoscope, and thereby omitting existing complicated cleaning and sterilization processes.