Enhanced Shield for Recurrent Laryngeal Nerve Protection

Publication ID: 24-11857696_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Shield for Recurrent Laryngeal Nerve Protection,” Published Technical Disclosure No. 24-11857696_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857696_0006_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,696.

Summary of the Inventive Concept

An advanced shield for protecting the recurrent laryngeal nerve during neck surgeries, offering improved safety, flexibility, and sensor-enabled detection of potential nerve damage.

Background and Problem Solved

During neck surgeries, the recurrent laryngeal nerve is susceptible to damage, which can result in vocal cord paralysis, breathing difficulties, and other complications. The original patent's shield, while providing some protection, has limitations in terms of flexibility, nerve irritation, and lack of real-time monitoring. The new inventive concept addresses these limitations by introducing a porous structure, adjustable tabs, built-in sensors, hydrophilic coatings, and a comprehensive kit for surgeons.

Detailed Description of the Inventive Concept

The enhanced shield features a porous structure that allows for fluid exchange and minimizes nerve irritation. The shield can be secured in place using adjustable tabs, ensuring a snug fit around the nerve. Additionally, a built-in sensor detects nerve activity and alerts the surgeon of potential nerve damage. The shield's hydrophilic coating reduces friction and prevents nerve adhesion. The comprehensive kit includes the shield, a surgical instrument for application, and instructions for use.

Novelty and Inventive Step

The new claims introduce several non-obvious advancements, including the porous structure, adjustable tabs, built-in sensor, and hydrophilic coating. These features improve the shield's performance, flexibility, and safety, providing a significant inventive step over the original patent.

Alternative Embodiments and Variations

Alternative embodiments could include shields with varying porosity levels, different types of sensors, or adjustable tabs with customizable shapes. Variations could also involve different materials for the shield, such as biodegradable or bioabsorbable materials.

Potential Commercial Applications and Market

The enhanced shield has significant commercial potential in the medical device industry, particularly in the field of neck surgery. The target market includes hospitals, surgical centers, and medical device manufacturers. The shield's improved safety features and real-time monitoring capabilities make it an attractive solution for surgeons and patients alike.

CPC Classifications

SectionClassGroup
A A61 A61L27/3834
A A61 A61L27/54
A A61 A61L27/58
A A61 A61L2430/22
A A61 A61L2430/32

Field of Art

Surgical medical devices and methods for nerve protection, specifically focusing on intraoperative nerve shielding techniques in neck and head surgeries, with expertise in biomaterials, surgical instrumentation, and protective medical technologies

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or surgical device designer with advanced training in medical device development, biomaterials engineering, and surgical intervention techniques, possessing knowledge of nerve protection strategies and medical device design principles

Obviousness Rationale

A person having ordinary skill in the art would recognize that the published technical disclosure represents predictable variations and incremental improvements to the source patent's core concept of nerve shielding. The additional features like porous structure, adjustable tabs, and sensor integration are logical extensions of the original nerve protection methodology that would be apparent to a skilled practitioner seeking to optimize surgical nerve protection techniques.

Obvious Combinations & Variations

Source Patent Element
Biologic tissue shield for covering recurrent laryngeal nerve
PTD Variation
Porous structure shield allowing fluid exchange and minimizing nerve irritation
Obviousness Reasoning
A PHOSITA would recognize that modifying shield material porosity is a predictable design variation to improve biocompatibility and reduce potential nerve inflammation, representing an obvious engineering optimization
Source Patent Element
Flexible biologic tissue that conforms to surrounding tissue
PTD Variation
Adjustable tabs for securing shield and preventing nerve damage
Obviousness Reasoning
Implementing mechanical securing mechanisms is a known technique for improving medical device positioning, representing an obvious enhancement to the original flexible tissue concept
Source Patent Element
Dissolvable or absorbable biologic tissue
PTD Variation
Hydrophilic coating to reduce friction and prevent nerve adhesion
Obviousness Reasoning
Surface modification techniques are well-established in medical device design, and applying a hydrophilic coating represents a predictable solution for improving tissue interaction and reducing potential complications
Source Patent Element
Neck surgery nerve protection method
PTD Variation
Built-in sensor to detect nerve activity and alert surgeon
Obviousness Reasoning
Integrating monitoring technologies into surgical devices is a known approach for improving surgical outcomes, and adding sensor capabilities represents an obvious technological progression
Source Patent Element
Biologic tissue shield for nerve protection
PTD Variation
Comprehensive surgical kit including shield, application instrument, and instructions
Obviousness Reasoning
Packaging medical devices with specialized instruments and usage guidelines is a standard practice in medical device development, representing an obvious commercial and usability enhancement
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed in this published technical disclosure would have been obvious to a person having ordinary skill in the art at the time of invention, with reasonable expectation of success, when considering the teachings of US Patent 11857696. The incremental technological improvements represent predictable variations that do not rise to the level of non-obvious innovation, thereby establishing this disclosure as valid prior art against potential future patent claims in nerve protection technologies.

Original Patent Information

Patent NumberUS 11,857,696
TitleShield for recurrent laryngeal nerve and associated methods