Subcutaneous Injection Guide Frame for Depth Control

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Solution Overview

Problem

Current subcutaneous injection methods require manual dexterity and can be challenging, especially when administering to moving patients, as they rely on pinching skin and using a syringe to control needle placement, leading to potential discomfort and premature needle withdrawal due to mechanical limitations.

Innovation Solution

A device with a peripheral frame and skin penetration plates that allow for controlled penetration of the injection needle into subcutaneous tissue without entering muscle tissue, facilitating precise and comfortable subcutaneous injections by ensuring the needle penetrates to the appropriate depth and remains stable during administration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the syringe is used to direct the placement of the injection needle with manual control, then the injection can be administered, but considerable manual dexterity is required and proper placement is difficult when the patient or syringe moves

Engineering Contradiction:

Improveease of needle placementVSAvoidreliability of proper needle placement

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent introduces a mechanical guide device with a frame and positioning elements that act as an intermediary between the syringe and the patient's body. This guide device provides a stable reference frame that ensures proper needle placement depth and angle, eliminating the need for manual dexterity while maintaining reliable placement even when the patient moves.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the manual mechanical control system (syringe holder requiring manual dexterity) with a mechanical guide system that uses fixed geometric relationships and positioning structures. This substitution eliminates the need for operator skill while ensuring consistent, reliable needle placement through mechanical constraints.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Object-affected harmful factors

If the injection needle is inserted quickly to reduce pain, then less pain is experienced, but the insertion may be slower than optimum due to the mechanical arrangement and concern to achieve proper positioning

Engineering Contradiction:

Improvepain during injectionVSAvoidspeed of needle insertion

Core Design Contradiction:

Object-affected harmful factorsVSProductivity

Solution Approach 1:

The patent incorporates preliminary action by pre-configuring the needle within the guide device at the correct angle and depth before contact with the patient. The guide structure is prepared in advance to automatically ensure proper positioning, allowing the operator to simply press the device against the skin for immediate, painless insertion without needing to carefully position the needle during the act.

Inventive Principle:

Principle #10Preliminary action

3Device complexity

If the injection needle is controlled solely by the syringe at a considerable distance from the needle end, then the syringe can be used to direct placement, but the needle may move after insertion causing discomfort and premature withdrawal

Engineering Contradiction:

Improvesimplicity of control mechanismVSAvoidstability of needle position

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent segments the injection system into two distinct functional components: a guide device that ensures stable, accurate needle placement and a syringe that delivers the therapeutic. The guide device remains in contact with the injection site to maintain needle stability, while the syringe can be positioned at a distance for comfortable operation. This segmentation allows the simple syringe mechanism to be combined with a stable guiding structure.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10500351B2Aid for subcutaneous tissue injection and process of effecting the injection with the aid

Publication Date: 2019.12.10 MICHELS SHAWN MICHAEL

AI summary

The present disclosure is concerned with a device for facilitating a subcutaneous injection and a process for administering the subcutaneous injection. The device has a peripheral frame and an injection needle or an aperture in a central portion of the frame adapted to hold an injection needle. The peripheral frame has an arm or arms adapted to contact the skin at points distant enough from each other to allow the arms or arm to penetrate into the skin a distance greater than the thickness of the skin, a central portion which joins the arms above the terminal portions or portion and an injection needle affixed to the central portion, facing in the same direction as the penetration ends of the arms or an aperture in the central portion adapted to hold an injection needle facing in the same direction as the penetration ends of the arms.