Tissue Resection Coring for Complete Lung Lesion Removal

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Solution Overview

Problem

Current methods for removing tissue, particularly in cases like lung cancer, are invasive, require extensive surgery, and often result in substantial recovery periods, with challenges in diagnosing small and intermediate lung nodules due to limited biopsy accuracy and the need for secondary procedures.

Innovation Solution

A system and method for removing a core of tissue using a tissue resection device that includes anchoring, creating a channel, ligating, amputating, and removing the tissue core, with options for sealing the cavity, allowing for precise lesion removal and potential localized treatment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional biopsy methods are used to diagnose lung lesions, then the procedure is minimally invasive, but the accuracy is limited and often requires secondary procedures

Engineering Contradiction:
Improvebiopsy accuracyVSAvoidprocedure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts and removes the entire lung nodule/lesion from the lung tissue rather than taking a small biopsy sample. The resection device includes a coring mechanism that captures the complete lesion, allowing for accurate diagnosis while eliminating the need for multiple secondary procedures that are often required with traditional biopsy methods.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The resection device is divided into functional segments: an anchor for positioning, a coring mechanism for tissue removal, and a retrieval mechanism for extracting the lesion. This segmentation allows each component to perform its specific function optimally while working together to achieve complete lesion removal with minimal invasiveness.

Inventive Principle:
Principle #1Segmentation

2Reliability

If extensive surgery is performed to remove tissue, then complete lesion removal is achieved, but the recovery period is substantial

Engineering Contradiction:
Improvelesion removal completenessVSAvoidrecovery period
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces traditional open surgical mechanics with a minimally invasive percutaneous approach. The resection device is introduced through a small puncture in the chest wall, and the coring mechanism uses a drill-bit-like structure to remove the lesion through the chest wall and into a collection device, eliminating the need for large incisions and extensive surgical dissection while ensuring complete lesion removal.

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

Solution Approach 2:

The collection device is nested within the resection device, which itself is nested within the chest wall puncture tract. The coring mechanism is contained within the resection device body, and the entire assembly is introduced through a small entry point. This nested configuration allows complete lesion removal while minimizing the surgical footprint and promoting faster recovery.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Manufacturing precision

If traditional coring apparatus is used, then tissue core with predefined shape is obtained, but healthy tissue is removed unnecessarily

Engineering Contradiction:
Improvetissue core shape controlVSAvoidhealthy tissue removal
Core Design Contradiction:
Manufacturing precisionVSLoss of substance

Solution Approach 1:

The resection device incorporates imaging guidance (such as fluoroscopy or CT) that allows real-time visualization of the lung nodule and surrounding structures. The operator can adjust the coring parameters and imaging settings to target only the lesion area, capturing a tissue core with the desired shape and size while minimizing the removal of healthy tissue. The anchor component also allows precise positioning to ensure the coring drill contacts only the lesion.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12521168B2Tissue resection control systems and methods
Publication Date: 2026.01.13 PRANA THORACIC INC
  • US12521168B2 patent drawing
  • US12521168B2 patent drawing
  • US12521168B2 patent drawing

AI summary

A method for removing tissues may comprise disposing a tissue resection device at a target tissue site, causing the tissue resection device to resect a core of tissue from the target tissue site, removing the core of tissue from the body, wherein the removing the core of tissue from the body creates a core cavity at the target tissue site.