Catheter Placement Device Perpendicular Insertion Guide

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Solution Overview

Problem

The manual placement of intra-ventricular catheters often results in significant horizontal and vertical errors due to non-perpendicular angles of entry, which can lead to incorrect placement and potential neurological injury.

Innovation Solution

A catheter placement device with a location portion and a tubular upstand having a bore oriented perpendicularly to the body part, featuring a translucent medical-grade plastic design with a circular cross-section, gripping configurations, and a tubular collar to ensure precise and accurate catheter insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual catheter insertion is performed, then the procedure is simple and quick, but significant horizontal and vertical errors occur due to non-perpendicular angles of entry

Engineering Contradiction:

Improvesimplicity and speed of catheter insertionVSAvoidplacement accuracy (horizontal and vertical error)

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

A guide device is introduced as an intermediary tool between the manual insertion process and the catheter. The guide device includes a location portion that contacts the skull surface and a tubular upstand with a bore that defines the insertion trajectory, ensuring perpendicular entry while maintaining procedural simplicity

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide device is positioned and secured to the skull surface before catheter insertion. The location portion is attached to the skull, and the tubular upstand is positioned to define the correct perpendicular trajectory, preparing the pathway in advance to eliminate angular errors during actual catheter insertion

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If the angle of entry is not perpendicular, then insertion may be easier, but both horizontal and vertical error from the desired destination point increase significantly

Engineering Contradiction:

Improveease of catheter insertionVSAvoidangular precision of insertion

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The tubular upstand with its bore acts as a mechanical intermediary that enforces perpendicular insertion. The bore is oriented at a precise 90-degree angle to the location portion, and the catheter must pass through this defined trajectory, ensuring accurate angular precision while maintaining ease of insertion through the guide structure

Inventive Principle:

Principle #24Intermediary (Mediator)

3Length of moving object

If depth of penetration is increased, then the catheter reaches the ventricle, but horizontal and vertical error is exacerbated

Engineering Contradiction:

Improvedepth of catheter penetrationVSAvoidplacement accuracy

Core Design Contradiction:

Length of moving objectVSManufacturing precision

Solution Approach 1:

The guide device serves as a mechanical constraint that maintains the correct insertion trajectory throughout the entire penetration depth. The tubular upstand keeps the catheter aligned perpendicular to the skull surface, ensuring that even at increased depths of 5-8 cm, the horizontal and vertical errors remain minimal compared to unguided manual insertion

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10632283B2Catheter placement device

Publication Date: 2020.04.28 WITHERS TERESA KATHRYN

AI summary

A catheter placement device including a location portion for locating the device relative to a body part and a tubular up stand extending upwardly from the location portion and having a bore therethrough, the bore being oriented such that the bore extends angularly relative to the body part in use.