Remote Surgery End Effector Scale Adjustment Mechanism

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Solution Overview

Problem

Existing technologies for remote surgery end effectors only adjust the scale factor according to screen magnification, without addressing how to operate the end effector in harmony with both modes of adjustment.

Innovation Solution

A device and method that include an input device unit, a screen magnification control unit, an operation scale control unit, and an end effector driving unit, which allow for the adjustment of screen magnification and operation scale in conjunction with each other, enabling harmonious operation of the end effector across different modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the scale factor is adjusted according to screen magnification (first mode), then the end effector operation can be adapted to different viewing magnifications, but the operation scale cannot be independently adjusted without affecting screen magnification

Engineering Contradiction:
Improveadaptability of end effector operation to screen magnificationVSAvoidindependent adjustment of operation scale
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent divides the scale adjustment function into two independent segments: screen magnification adjustment and operation scale adjustment. The operation scale control unit can adjust the operation scale independently without changing screen magnification, while the screen magnification control unit handles only visual magnification. This segmentation allows each function to operate independently, resolving the contradiction between adaptability and ease of operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary control unit that mediates between screen magnification changes and operation scale adjustments. This intermediary unit processes the scale factor calculations and coordinates the two adjustment modes, allowing the operation scale to be adjusted independently while maintaining compatibility with screen magnification changes.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If the screen magnification is increased for detailed viewing, then the detail operation of end effector is enabled, but the operation distance of end effector becomes smaller

Engineering Contradiction:
Improvedetail operation capabilityVSAvoidoperation distance of end effector
Core Design Contradiction:
Measurement precisionVSLength of moving object

Solution Approach 1:

The patent implements dynamic adjustment of the operation scale based on screen magnification changes. When screen magnification is increased for detailed viewing, the operation scale is automatically adjusted to maintain appropriate operation distance. This dynamic coordination allows the system to adapt the movement characteristics of the end effector to match the viewing magnification level.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter relationship between screen magnification and operation scale dynamically. By adjusting the scale factor according to the operation mode and screen magnification level, the system can maintain optimal operation distance even when viewing magnification changes, resolving the contradiction between detail viewing capability and operation distance.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If the operation scale is adjusted independently, then the operation distance can be modified, but the screen magnification becomes inconsistent with the operation scale

Engineering Contradiction:
Improveindependent adjustment of operation scaleVSAvoidconsistency between screen magnification and operation scale
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent implements a feedback mechanism where the operation scale control unit monitors screen magnification changes and adjusts the operation scale accordingly to maintain consistency. When screen magnification is changed, the system feeds back this information and automatically adjusts the operation scale parameter to maintain proper coordination between viewing and operation parameters.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent performs preliminary coordination between screen magnification and operation scale adjustments. Before allowing independent operation scale adjustment, the system preliminarily establishes the relationship between the two parameters and pre-calculates the appropriate scale factors, ensuring consistency is maintained throughout the operation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250114159A1Device for adjusting movement distance of remote surgery end effector, and method therefor
Publication Date: 2025.04.10 ROEN SURGICAL INC
  • US20250114159A1 patent drawing
  • US20250114159A1 patent drawing
  • US20250114159A1 patent drawing

AI summary

The present invention relates to a device for adjusting the movement distance of a remote surgery end effector, and a method therefor, and more particularly, to a device for adjusting the movement distance of a remote surgery end effector, and a method therefor, the device being capable of changing the operating scale of an end effector according to screen magnification or, oppositely, changing the screen magnification according to operating scale. To this end, the device for adjusting the movement distance of a remote surgery end effector includes: an input device unit for generating an manipulation command of an end effector according to manipulation by a user in a remote place; a screen magnification control unit for decreasing or increasing the screen magnification of a captured image in conjunction with the adjustment of a first operating scale of the end effector according to a screen magnification change input or an operation mode change; an operating scale control unit for adjusting the first operating scale of the end effector in conjunction with a decrease and an increase in screen magnification, and transmitting, to the screen magnification control unit, the first operating scale of the end effector converted according to an operating scale change input or an operation mode change; and an end effector driving unit for changing the movement distance of the end effector according to the first operating scale.