Endoscope Camera Head Segmentation for Sterilization

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Solution Overview

Problem

Existing endoscope systems require image signals to be transmitted externally for processing and display, leading to increased complexity and the need for separate sterilization of heavy components, which complicates the imaging and recording process.

Innovation Solution

A camera head system for endoscopes that integrates an image pickup device, image signal processing, and recording capabilities, with a detachable display device to reduce weight and size, allowing for direct connection to the eyepiece and separate sterilization of the camera head, while enabling image processing, recording, and display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If image signal processing and recording devices are integrated into the camera head, then image processing and recording are simplified, but the camera head becomes heavier and larger

Engineering Contradiction:
Improveimage processing and recording systemVSAvoidcamera head
Core Design Contradiction:
Device complexityVSWeight of moving object

Solution Approach 1:

The system is divided into two segments: a lightweight camera head that performs only image pickup, and a separate external device that handles image signal processing and recording. This segmentation allows the camera head to remain small and lightweight while the processing functions are performed externally, resolving the contradiction between integration benefits and weight constraints.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If the camera head is made compact for easy sterilization, then sterilization precision is improved, but image processing capabilities are reduced

Engineering Contradiction:
Improvesterilization processVSAvoidimage processing function
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The camera head is segmented to contain only essential components (lens, image pickup device, and minimal control circuits) that can withstand sterilization. Image processing functions are relocated to an external device that does not require sterilization, allowing the camera head to be made compact and sterilizable while maintaining full image processing capabilities in the external unit.

Inventive Principle:
Principle #1Segmentation

3Weight of moving object

If image signals are transmitted externally for processing, then the camera head can be lighter, but the overall system complexity increases

Engineering Contradiction:
Improvecamera headVSAvoidsystem configuration
Core Design Contradiction:
Weight of moving objectVSDevice complexity

Solution Approach 1:

The external device is designed with multi-functionality, serving as both the image signal processing unit and the recording device. This universal design consolidates multiple functions into a single external unit, reducing the overall system complexity despite the separation of the camera head from processing functions.

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

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

This configuration simplifies image processing and recording, reduces the size and weight of the camera head, and allows for precise sterilization, enhancing manageability and convenience by enabling on-board image processing and separate display, while maintaining the ability to record and display images effectively.

Implementation Method 1

an image pickup device which picks up an observation image from the eyepiece section connected by the connection device

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentUS7959558B2Camera head for endoscope, camera system for endoscope, and endoscope system
Publication Date: 2011.06.14 OLYMPUS CORPORATION(JP)
  • US7959558B2 patent drawing
  • US7959558B2 patent drawing
  • US7959558B2 patent drawing

AI summary

In a camera head for an endoscope, a camera system for an endoscope, and an endoscope system of the invention, a camera head section has: an adaptor connection section to be connected to an eyepiece section of an endoscope that enables observation of inside of a body cavity of a subject; a CCD which picks up an observation image from the eyepiece section connected by the adaptor connection section; an image signal processing device which processes an image signal of the observation image picked up by the CCD; a cable including a connector as an output device which outputs the image signal from the image signal processing device; and a recording device which records the image signal.