Magnetic Capsule Endoscope Control With a Compact Transmission Layout

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Solution Overview

Problem

The design of existing magnetically controlled capsule endoscope systems has a complicated transmission chain, resulting in a large volume and significant space occupation, particularly in the circumferential size of the magnetic control device.

Innovation Solution

A magnetic control device with a simplified transmission chain design, where the drive fitting portion is disposed on the housing portion rather than the shaft portion, and the first and second driving mechanisms are separately arranged, utilizing gear or belt transmission mechanisms to reduce the device's volume and save space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the drive fitting portion is arranged on the shaft portion, then the magnetic component can be controlled to rotate, but the transmission chain becomes complicated and the device volume increases

Engineering Contradiction:
Improverotation control of magnetic componentVSAvoidmagnetic control device volume
Core Design Contradiction:
Ease of operationVSVolume of stationary object

Solution Approach 1:

The patent merges the drive fitting portion with the housing portion instead of keeping it separate on the shaft portion. This integration reduces the number of components and simplifies the transmission chain, directly addressing the volume reduction goal while maintaining the rotation control function through the magnetic field interaction.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the drive fitting portion from the shaft portion and relocates it to the housing portion. This extraction simplifies the transmission chain by eliminating unnecessary intermediate components, reducing the overall device volume while preserving the essential rotation control capability through direct magnetic field coupling.

Inventive Principle:
Principle #2Taking out (Extraction)

2Volume of stationary object

If the first and second driving mechanisms are arranged separately, then the transmission chain is simplified and space is saved, but the structural complexity increases

Engineering Contradiction:
Improvemagnetic control device volumeVSAvoidtransmission chain structure
Core Design Contradiction:
Volume of stationary objectVSDevice complexity

Solution Approach 1:

The patent segments the driving mechanisms into two separate units: the first driving mechanism on the first support and the second driving mechanism on the second support. This segmentation simplifies the transmission chain by eliminating complex interconnections, reducing device volume, and making each mechanism independently controllable while maintaining overall system functionality.

Inventive Principle:
Principle #1Segmentation

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 achieves a compact magnetic control device with stable power transmission, allowing for efficient adjustment of the capsule endoscope's examination field of view while minimizing space occupation and simplifying the internal structure.

Implementation Method 1

a magnet built in the magnetically controlled capsule endoscope is controlled to drive the capsule endoscope to move

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

place a magnet outside a human body, and through an orderly changing magnetic field around the magnet

Methodology Applied
Scientific EffectMagnetism: Magnetism

Data Source

PatentUS12507871B2Magnetic control device and capsule endoscope control system
Publication Date: 2025.12.30 ANKON MEDICAL TECH (SHANGHAI) CO LTD
  • US12507871B2 patent drawing
  • US12507871B2 patent drawing
  • US12507871B2 patent drawing

AI summary

A magnetic control device and a capsule endoscope control system are provided. The magnetic control device comprises: a first support, a second support, a magnetic component, a first driving mechanism and a second driving mechanism. The magnetic component comprises a housing portion and a shaft portion connected to the housing portion, the housing portion is provided with a magnet and a drive fitting portion, and the shaft portion is rotatably connected to the second support. The first driving mechanism is disposed on the first support and is connected to the second support, the second driving mechanism is disposed on the second support and is connected to the magnetic component. The first driving mechanism drives the second support to drive the magnetic component to rotate around a first axis, the second driving mechanism drives the magnetic component to rotate around a second axis, the first axis intersects the second axis.