Energy-Based Lung Lesion Removal Device

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Solution Overview

Problem

Current methods for lung lesion removal are invasive, require multiple procedures, and have limited accuracy and specificity, especially for small and intermediate nodules, leading to potential missed diagnoses and extensive tissue damage.

Innovation Solution

A system and method for removing lung lesions that involves anchoring, creating a channel, forming a tissue core, ligating, and amputating the core using an energy-based device to minimize healthy tissue removal and allow for accurate diagnosis and potential localized treatment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional invasive methods are used for lung lesion removal, then the lesion can be removed, but extensive healthy lung tissue is damaged and multiple procedures are required

Engineering Contradiction:
Improvediagnostic accuracyVSAvoidhealthy lung tissue
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The patent extracts only the necessary tissue core containing the lesion through a targeted channel, rather than removing extensive healthy tissue. The device creates a precise pathway and retrieves only the core sample needed for diagnosis, minimizing collateral damage to surrounding lung parenchyma.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The procedure is divided into distinct sequential steps: anchoring the device, creating a channel, forming a tissue core, ligating, and amputating. This segmentation allows for controlled, stepwise removal of only the lesion-containing tissue, improving both diagnostic accuracy and tissue preservation.

Inventive Principle:
Principle #1Segmentation

2Reliability

If multiple procedures are performed for lesion removal, then complete removal can be achieved, but time and complexity increase

Engineering Contradiction:
Improvelesion removal completenessVSAvoidprocedure time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent combines multiple functions into a single integrated device and procedure: anchoring, channel creation, tissue core formation, ligation, and amputation all occur in one operational sequence. This consolidation eliminates the need for multiple separate procedures while maintaining complete lesion removal capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device performs preliminary anchoring and channel creation before tissue core formation, allowing the entire lesion removal process to be prepared and executed in advance within a single procedure, eliminating subsequent surgical interventions.

Inventive Principle:
Principle #10Preliminary action

3Loss of information

If biopsy is performed to diagnose lesion, then diagnosis can be obtained, but the entire lesion may not be removed for accurate diagnosis

Engineering Contradiction:
Improvediagnostic informationVSAvoidtissue sample完整性
Core Design Contradiction:
Loss of informationVSLoss of substance

Solution Approach 1:

The device extracts the entire tissue core containing the complete lesion structure rather than taking a partial biopsy sample. This ensures that the full architectural and histological information needed for accurate diagnosis is preserved in the retrieved core sample.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The anchoring and channel creation steps are performed preliminarily to ensure proper positioning and access before forming the complete tissue core. This preliminary preparation guarantees that the entire lesion can be captured intact for comprehensive diagnostic evaluation.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables the removal of entire lesions in a single procedure, reducing the need for secondary surgeries and minimizing healthy lung tissue damage, while providing a clear sample for diagnosis and potential localized treatment options.

Implementation Method 1

creating a tissue core including the lesion; ligating the tissue core

Methodology Applied
Scientific EffectEnergy-based cutting and coagulation: Joule Heating

Implementation Method 2

ligating the tissue core at a ligation point downstream from the tissue lesion

Methodology Applied
Scientific EffectEnergy-based ligation: Joule Heating

Data Source

PatentUS11723708B2Method for removing a tissue lesion
Publication Date: 2023.08.15 PRANA THORACIC INC
  • US11723708B2 patent drawing
  • US11723708B2 patent drawing
  • US11723708B2 patent drawing

AI summary

A method for removing a tissue lesion where an anchor is established with the lesion. A channel is created in the tissue leading to the anchored lesion. A tissue core is created which includes the lesion. The tissue core is ligated, amputated and removed from the channel.