Adjustable Needle Guide Platform for Precise Puncture Angles

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Solution Overview

Problem

Existing medical devices for puncturing, such as puncture needles, require manual skill and dexterity, and often necessitate visual guidance like ultrasound, complicating the puncturing process and increasing the risk of undesired tears and injuries.

Innovation Solution

A medical device with a guiding platform pivotably attached to a base body, allowing adjustable angles for precise needle guidance, compatible with ultrasound visualization, facilitating controlled puncture without collateral damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual puncturing is performed without guidance devices, then the practitioner requires high skill and dexterity, but the risk of undesired tears and injuries increases

Engineering Contradiction:

Improvepuncture safetyVSAvoidoperational difficulty

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The guiding platform serves as an intermediary device between the needle and the puncture target. It provides a stable base that supports the needle at controlled angles, acting as a mediator that transfers the practitioner's manual control into precise, angle-controlled puncture movements, thereby reducing the skill requirement while maintaining safety

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If ultrasound visualization is used to guide puncture, then the precision of puncture positioning improves, but the complexity of the puncturing process increases

Engineering Contradiction:

Improvepuncture positioning precisionVSAvoidpuncture process complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The device segments the puncture guidance function into two independent parts: (1) the guiding platform that provides mechanical angle control and stability, and (2) the ultrasound visualization system that provides positional guidance. This segmentation allows each component to perform its specific function without adding complexity to the other, maintaining precision while reducing overall process complexity

Inventive Principle:

Principle #1Segmentation

3Ease of manufacture

If the guiding platform is fixed at a single angle, then the structure is simple, but the adaptability to different puncture angles is limited

Engineering Contradiction:

Improvestructural simplicityVSAvoidangle adjustment capability

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The guiding platform incorporates adjustable angle mechanisms that allow it to transition from a fixed structure to a dynamic, adaptable system. The platform can be adjusted to different angles to accommodate various puncture requirements, providing versatility while maintaining relatively simple construction through the use of adjustable rather than fixed geometric configurations

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP4656134A1Medical device for guiding a needle to a puncture position

Publication Date: 2025.12.03 ERRAZKIN TELLETXEA XABIER

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AI summary

Medical device for guiding a needle to a puncture position, comprising a guiding platform (2) to allow a longitudinal movement of the needle on the guiding platform (2) to a puncture position (200), the guiding platform (2) being coupled to a base body (1) which is supported on a puncture area. The guiding platform (2) is pivotably attached to the base body (1), such that said guiding platform (2) can be fixed at different angles of inclination with respect to the base body (1).