Surgical Adapter Stopper Rotation Restriction Mechanism

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Solution Overview

Problem

Existing surgical instrument adapters require additional internal structure and space to prevent disk rotation with the spring-loaded input unit, leading to complexity and size issues.

Innovation Solution

A stopper with a rotation restriction portion is attached to the adapter main body, restricting disk rotations when attached and releasing the restriction when detached, allowing for a simpler adapter design without additional internal structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the disk is equipped with teeth engaged with the upper surface retractor plate to restrict rotation, then the disk rotation is prevented, but additional internal structure and space are required in the adaptor main body

Engineering Contradiction:

Improverotation restrictionVSAvoidadaptor structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The rotation restriction function is extracted from the adaptor main body and transferred to a separate stopper component. The stopper includes the rotation restriction portion with teeth that engage with the disk teeth, while the adaptor main body only provides the drive transmission member. This separation eliminates the need for additional internal structure in the adaptor main body.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The device is divided into distinct functional components: the adaptor main body containing the drive transmission member, and the stopper containing the rotation restriction portion. This segmentation allows each component to be optimized independently and simplifies the overall adaptor structure.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the adaptor includes internal structure for restricting disk rotation, then rotation is prevented, but the size of the adaptor main body increases

Engineering Contradiction:

Improverotation restrictionVSAvoidadaptor main body

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The rotation restriction mechanism is extracted from the adaptor main body and placed in the stopper. The stopper is a separate, compact component that can be easily attached and detached, preventing the need to increase the volume of the adaptor main body.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of operation

If the stopper body is detached from the adaptor main body, then the rotation restriction is released allowing disk rotation

Engineering Contradiction:

Improvedisk rotationVSAvoidrotation control

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The rotation restriction system is made dynamic through the detachable stopper. When the stopper is attached, rotation is restricted; when detached, rotation is free. This dynamic configuration allows the system to adapt its rotation control characteristics based on operational requirements.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11553978B2Stopper and adaptor

Publication Date: 2023.01.17 MEDICAROID CORP

AI summary

A stopper according to one or more embodiments may include: a stopper body; and a rotation restriction portion provided at the stopper body and configured to restrict rotations of the drive transmission member. The stopper may be configured such that the rotation restriction portion restricts the rotations of the drive transmission member in a state where the stopper body is attached to the adaptor main body and the rotation restriction portion releases the restriction of the rotations of the drive transmission member in a state where the stopper body is detached from the adaptor main body.