Laryngeal Forceps Measurement Scale for Precise Stenosis Graft Sizing

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Solution Overview

Problem

There is a lack of objective tools to determine the exact width of the space created by dividing the posterior cricoid lamina during endoscopic posterior cricoid split and rib grafting procedures for stenosis repair, leading to subjective and variable graft sizing without established standards.

Innovation Solution

A laryngeal forceps with a measurement scale is used to measure the recipient site in the respiratory tract, allowing for precise alignment of pointer tips to determine the width, and the graft is shaped accordingly to fit the measured site, ensuring accurate placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If subjective surgeon-based graft sizing is used, then the procedure can be performed without specialized measurement tools, but the graft width varies and lacks standardization

Engineering Contradiction:

Improveprocedure simplicityVSAvoidgraft width consistency

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent replaces subjective visual estimation and manual measurement with a standardized measurement scale integrated into the laryngeal forceps. This mechanical measurement system provides objective, quantifiable data for graft width determination, eliminating variability while maintaining procedural simplicity through the integrated design of the measurement tool within the existing surgical instrument.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If no measurement tool is used, then the surgical procedure remains simple and quick, but the graft width cannot be precisely determined

Engineering Contradiction:

Improvesurgical efficiencyVSAvoidrecipient site width measurement

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The patent combines the measurement scale directly with the laryngeal forceps, merging two functions (measurement and surgical manipulation) into a single integrated tool. This allows precise measurement of the recipient site width to be performed during the surgical procedure without requiring separate measurement steps or additional tools, thereby maintaining surgical efficiency while enabling accurate graft width determination.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20260020871A1Stenosis repair using laryngeal forceps having measurement scale

Publication Date: 2026.01.22 KING SAUD UNIVERSITY

AI summary

A method for repairing for repairing stenosis in an airway of a patient is disclosed using laryngeal forceps having a measurement scale. The method includes harvesting a cartilage graft from a patient and inserting a laryngoscope into the respiratory tract of the patient. The stenotic region is prepared by removing stenotic tissue to create a recipient site for insertion of the cartilage graft. A width measurement of the recipient site is obtained using the laryngeal forceps. The width measurement is shown on the laryngeal forceps indicating a distance value between the first jaw tip and second jaw tip of the forceps. The measurement scale may include graduated markings or a digital display. A thumbscrew may be included for locking the jaws and handle in a fixed position. The forceps may include triangular jaws with pointers for precise alignment with and measurement of the stenotic region.