CT Needle Support With Skin-Anchored Stabilization

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Solution Overview

Problem

Current CT-guided procedures face challenges with radiation exposure to operators and procedural complications due to inadequate needle stabilization, which limits the effectiveness and increases risks such as bleeding, infection, and radiation exposure.

Innovation Solution

A device comprising a base with adjustable elongated extensions and a flexible neck portion with a grasper to securely hold medical instruments like needles, allowing for reduced operator hand exposure and improved procedural stability during CT scans.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If current needle stabilization devices (towel clips, biopsy needle holders) are used, then needle positioning is achieved, but operator hand radiation exposure remains high and needle stability is compromised

Engineering Contradiction:
Improveoperator hand radiation exposureVSAvoidneedle stability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent introduces a stabilization device with a base portion that couples to the patient's skin and a needle holder portion that secures the needle. This intermediary device acts as a mediator between the needle and the patient's body, eliminating the need for the operator to physically hold the needle with their hand, thereby reducing radiation exposure while maintaining needle stability through the skin-anchored base.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If side-hand manipulation is used to avoid radiation, then operator hand exposure is reduced, but needle stability and precision are compromised

Engineering Contradiction:
Improveoperator hand radiation exposureVSAvoidneedle placement precision
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The stabilization device serves as a fixed intermediary anchored to the patient's skin, providing a stable reference point for needle placement. This eliminates the need for side-hand manipulation while maintaining precision, as the device's fixed position relative to the entry site ensures accurate needle guidance without requiring continuous manual adjustment.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The base portion is coupled to the patient's skin before needle insertion, establishing a predetermined stable reference point. This preliminary action ensures that the needle holder is already in the correct position and orientation, allowing for precise needle placement without requiring manual manipulation during the critical insertion phase.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If current stabilization devices are used, then some needle support is provided, but device complexity and difficulty of operation increase

Engineering Contradiction:
Improveneedle stabilizationVSAvoiddevice usability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The stabilization device is divided into distinct functional segments: a base portion for skin coupling and a needle holder portion for securing the needle. This segmentation allows each component to be optimized for its specific function while simplifying the overall operation, as the modular design enables easy attachment and adjustment without complex mechanisms.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11109933B2Devices for supporting a medical instrument and methods of use
Publication Date: 2021.09.07 SEELY MORGAN MELISSA
  • US11109933B2 patent drawing
  • US11109933B2 patent drawing
  • US11109933B2 patent drawing

AI summary

Various implementations include a device for holding and supporting a medical instrument in a position. For example, the medical instrument may include a percutaneous procedure apparatus, such as a needle (e.g., biopsy needle, anesthesia needle) or needle holder. In some implementations, the device holds and supports the percutaneous procedure apparatus and liberates the procedure operator's hands from direct beam exposure, which lowers the risk of complications and radiation exposure to patients and procedure operators. The device also increases the effectiveness of the procedure by holding and supporting the apparatus in the intended position.