Automated Needle Insertion Location Identification in MRI Biopsy

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Solution Overview

Problem

The current process of identifying and positioning a biopsy needle during MRI-guided procedures is prone to errors and is time-consuming, requiring manual transfer of coordinates from an MRI image to a worksheet, which can lead to inaccuracies and repetition.

Innovation Solution

A system that automatically identifies a needle insertion location on an MRI image and provides a visual indication using a grid plate with a grid block and light guides, where the MRI image and marker are electronically transferred to a tablet computer to determine coordinates and insertion depth, and a visual indicator is used to guide the needle insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual transfer of coordinates from MRI image to worksheet is used, then the process can be performed with simple equipment, but the risk of error increases and the process becomes time-consuming

Engineering Contradiction:
Improveaccuracy of needle insertion location identificationVSAvoidcomplexity of automated location identification system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses a digital copy of the MRI image displayed on a monitor screen, allowing the technician to electronically mark the target location directly on the digital image rather than manually transferring coordinates. This digital copying approach eliminates manual transcription errors while maintaining system simplicity.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical/manual process of transferring coordinates by hand to a digital electronic system where the MRI image is displayed on a monitor and coordinates are automatically captured and processed by a computer algorithm, eliminating manual errors and reducing time consumption.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If manual coordinate transfer process is used, then the equipment required is simple, but the time required for the procedure increases

Engineering Contradiction:
Improvespeed of needle insertion location identificationVSAvoidcomplexity of automated location identification system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent employs digital copying of the MRI image on a monitor display, enabling rapid electronic identification and marking of the target location without manual coordinate transfer, thus significantly reducing procedure time while requiring only standard digital imaging equipment.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent enables continuous operation where the MRI image is displayed and coordinates are automatically captured and processed without interruption or manual intervention steps, allowing the identification process to continue seamlessly and reducing overall procedure time.

Inventive Principle:
Principle #20Continuity of useful action

3Measurement precision

If manual coordinate transfer is used, then the system complexity is low, but measurement precision of needle insertion location decreases

Engineering Contradiction:
Improveprecision of needle insertion locationVSAvoidcomplexity of automated location identification system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical coordinate transfer with an electronic digital system that automatically captures and processes coordinates from the MRI image display, providing higher measurement precision through electronic accuracy while using readily available digital equipment.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS9730762B2Automatic needle insertion location identification
Publication Date: 2017.08.15 NEOCOIL LLC
  • US9730762B2 patent drawing
  • US9730762B2 patent drawing
  • US9730762B2 patent drawing

AI summary

A system for automatically identifying a needle insertion location from a medical diagnostic image, such as an MRI image, and providing a visual indication of the needle insertion location is disclosed. A grid plate is located proximate to an anatomical region and is preferably incorporated in an MRI support structure utilized to immobilize the anatomical region. An MRI scanner obtains an MRI image of the anatomical region, and an MRI technician places a marker on the MRI image, identifying the needle insertion location. The MRI image and the marker are transferred from the MRI scanner to another device, such as a tablet computer, which is configured to convert the MRI image and the marker to coordinates and an insertion depth. A visual indicator is located proximate to or integrated with the grid plate that provides the needle insertion coordinates and insertion depth to the MRI technician.