Interchangeable Surgical Applier Mechanism for Multi-Function Actuation

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Solution Overview

Problem

Conventional surgical actuators with non-detachable appliers require multiple devices for different functions, leading to high costs and inefficiencies due to the need for device changes.

Innovation Solution

A surgical actuator with an interchangeable applier mechanism, featuring a sliding driving rod and pivot mechanism that allows easy attachment and detachment of different appliers, enabling a single actuator body to perform various functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a non-detachable applier design is used, then the device structure is simple, but the adaptability is poor and multiple devices are needed for different functions

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The surgical device is divided into two independent parts: a reusable actuator body and detachable appliers. The actuator body contains the driving mechanism while the appliers contain the functional elements. This segmentation allows different appliers to be attached to the same actuator body, improving adaptability without requiring multiple complete devices.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The actuator body is designed as a universal platform that can accommodate multiple types of appliers through a standardized connection interface. This allows a single actuator body to perform multiple surgical functions by simply changing the attached applier, eliminating the need for multiple specialized devices.

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

2Adaptability or versatility

If multiple surgical devices are used for different functions, then the adaptability is improved, but the cost increases and device changes become troublesome

Engineering Contradiction:
ImproveadaptabilityVSAvoidease of operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The standardized connection interface between the actuator body and appliers enables universal compatibility. Surgeons can switch between different surgical functions by simply detaching one applier and attaching another to the same actuator body, making device changes quick and straightforward while maintaining adaptability.

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

3Adaptability or versatility

If multiple surgical devices are used for different functions, then the adaptability is improved, but the cost increases

Engineering Contradiction:
ImproveadaptabilityVSAvoidcost
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

By separating the expensive actuator body from the disposable or interchangeable appliers, the system allows one expensive component to serve multiple functions. This reduces the total cost compared to purchasing multiple complete surgical devices, as the reusable actuator body is shared across different applier attachments.

Inventive Principle:
Principle #1Segmentation

4Device complexity

If a non-detachable applier design is used, then the device structure is simple, but the time required for device changes increases

Engineering Contradiction:
Improvedevice complexityVSAvoidtime
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The detachable design allows the applier to be quickly removed and replaced on the actuator body without requiring complex disassembly procedures. The standardized interface enables rapid attachment and detachment, significantly reducing the time needed to switch between different surgical functions compared to non-detachable designs.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4231935B1Surgical actuator with interchangeable applier
Publication Date: 2025.12.03 TAIWAN SURGICAL
  • EP4231935B1 patent drawingFigure 1
  • EP4231935B1 patent drawingFigure 2~2A
  • EP4231935B1 patent drawingFigure 3~3A

AI summary

The present invention provides a surgical actuator with interchangeable applier. By adapting the structure design and mechanism of the present invention, the actuator is able to install with different types of appliers as desire with different functions. A single actuator could adapt with many different kinds of appliers providing various functions.