Hysteroscopic Distension, Shaving, and Suction Coordination

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Solution Overview

Problem

Current hysteroscopic surgery equipment lacks coordinated interaction between distension, shaving, and suction functions, requiring manual control by the surgeon, which is inefficient and cumbersome.

Innovation Solution

A surgical system integrating a controller to coordinate a distension device, shaving device with a suction channel, and collection device, including a distension fluid collection system, negative pressure supply, and storage container, allowing automated control of fluid delivery, shaving, and waste removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate distension device and suction device are used, then each device can be optimized independently, but the system complexity increases and manual coordination is required

Engineering Contradiction:
Improvedevice optimizationVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the distension device and suction device into an integrated surgical system with a single controller that coordinates both functions. The controller manages the distension pump, suction pump, and various sensors as unified components, eliminating the need for separate device operation while maintaining individual device optimization through modular design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated surgical system performs multiple functions including distension, suction, pressure monitoring, and fluid level monitoring through a single multi-functional platform. The system can adapt between different surgical modes by coordinating the same hardware components for different purposes.

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

2Reliability

If separate distension device and suction device are used, then each device can be optimized independently, but manual control effort increases

Engineering Contradiction:
Improvedevice optimizationVSAvoidmanual control effort
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system incorporates pressure sensors that continuously monitor intrauterine pressure and provide feedback to the controller. The controller automatically adjusts the distension and suction operations based on this feedback, eliminating the need for manual coordination and reducing surgeon workload while maintaining safe operating parameters.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The controller automatically manages the coordination between distension and suction functions without requiring manual intervention. The system self-regulates by monitoring pressure levels and fluid dynamics, automatically adjusting pump operations to maintain optimal conditions throughout the surgical procedure.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If automated coordination is implemented, then manual control effort is reduced, but device complexity increases

Engineering Contradiction:
Improvemanual control effortVSAvoidcontrol system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical coordination with an electronic control system that uses sensors, microprocessors, and automated algorithms to manage device operations. The controller electronically coordinates the distension pump, suction pump, and monitoring systems, substituting complex manual mechanical adjustments with automated electronic control.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If integrated system is used, then procedural efficiency is improved, but initial setup complexity increases

Engineering Contradiction:
Improveprocedural efficiencyVSAvoidsetup complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary setup and calibration automatically during initialization. The controller pre-configures the coordination between distension and suction systems, and automatically calibrates sensors before the surgical procedure begins, reducing the complexity of manual setup while ensuring optimal performance.

Inventive Principle:
Principle #10Preliminary action

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

Enhances automation and efficiency in hysteroscopic surgery by coordinating distension, shaving, and suction functions, reducing manual effort and improving procedural control.

Implementation Method 1

a negative pressure supply device configured to supply a negative pressure to the suction channel based on the control signals of the controller, such that the suction channel suctions tissue waste and fluid waste generated during the shaving operation

Methodology Applied
Scientific EffectNegative pressure suction: Suction

Implementation Method 2

a distension device configured to deliver distension fluid to a target cavity and perform a distension operation

Methodology Applied
Scientific EffectFluid distension: Pressure Increase

Implementation Method 3

a pressure measurement device that measures a liquid pressure in the delivery pipe to monitor a liquid pressure in the target cavity

Methodology Applied
Scientific EffectPressure measurement:

Data Source

PatentEP4640171A1Surgical system having cavity distention, shaving and aspiration functions and control method
Publication Date: 2025.10.29 SCIVITA MEDICAL TECHNOLOGY CO LTD
  • EP4640171A1 patent drawingFigure 1~2
  • EP4640171A1 patent drawingFigure 3~4
  • EP4640171A1 patent drawingFigure 5~6

AI summary

The present disclosure provides a surgical system having distension, shaving and suction functions comprise a controller, a distension device delivering distension fluid to a target cavity and performing a distension operation based on control signals of the controller, a shaving device performing a shaving operation in the target cavity based on the control signals of the controller, wherein the shaving device has a suction channel, and a collection device. The collection device comprises a distension fluid collection device collecting the distension fluid naturally discharged from the target cavity; and a negative pressure supply device supplying a negative pressure to the suction channel based on the control signals of the controller, such that the suction channel suctions tissue waste and fluid waste generated during the shaving operation. The present disclosure also provides a control method and a surgical apparatus having distension, shaving and suction functions.