Needle Cover Alignment for Skewed Syringe Needle Return

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Solution Overview

Problem

Current automated syringe systems face issues with skewed needle heads causing needle cover placement deviations, potential leakage, and environmental pollution due to residual solution overflow, posing safety risks for medical staff.

Innovation Solution

A method and system involving a first and second clamping element with an adjusting element to align and insert the needle head into a needle cover's accommodating space, using triangular or arc-shaped openings to guide and correct the needle head's direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a robotic arm is used to clamp the syringe for needle cover placement and removal, then automation is improved, but the skewed needle head may pierce the transparent needle cover causing safety issues and environmental pollution

Engineering Contradiction:

ImproveautomationVSAvoidneedle head piercing needle cover

Core Design Contradiction:

Extent of automationVSObject-affected harmful factors

Solution Approach 1:

The adjusting element performs preliminary alignment of the needle head with the needle cover's accommodating space before the clamping element completes the insertion motion. This preliminary action ensures that even if the needle head is skewed, it will be properly oriented to avoid piercing the needle cover during the automated placement process.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If the needle head is skewed after use, then the syringe has completed its function, but the skewed needle head causes deviation in needle cover placement and clamping failure

Engineering Contradiction:

Improvesyringe functionalityVSAvoidneedle cover placement precision

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The adjusting element acts as an intermediary between the skewed needle head and the needle cover. It receives the skewed needle head and transforms its orientation to align with the needle cover's accommodating space, thereby mediating the placement process and ensuring precision despite the needle head's skewed state.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If the needle head is skewed, then the syringe operation is complete, but residual solution overflows causing environmental pollution and safety issues

Engineering Contradiction:

Improvesyringe operation completionVSAvoidresidual solution overflow

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The adjusting element performs preliminary alignment of the needle head with the needle cover before the clamping element initiates the insertion motion. This preliminary action ensures that the needle head is properly oriented to prevent residual solution from leaking out during the automated placement process, thereby preventing environmental pollution and safety issues.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260021018A1Needle cover return method, needle cover placement and removal system and adjusting device

Publication Date: 2026.01.22 INNOLUX CORP

AI summary

A cover return method is provided for a syringe, and includes: providing the syringe, wherein the syringe is fixed on a first clamping element and has a needle head; providing a needle cover, wherein the needle cover is fixed on a second clamping element and has an accommodating space; providing an adjusting element, wherein, when the first clamping element and the second clamping element are close to each other so that the needle head is adjacent to the needle cover, the adjusting element adjusts an extension direction of the needle head to be toward an extension direction of the accommodating space; and the first clamping element and the second clamping element continuing to be close to each other so that the needle head is inserted into the accommodating space of the needle cover.