Specialized Void Filling Joint Prostheses for Extreme Environments

Publication ID: 24-11857205_0009_PTD
Published: November 07, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Specialized Void Filling Joint Prostheses for Extreme Environments,” Published Technical Disclosure No. 24-11857205_0009_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857205_0009_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. 11,857,205.

Summary of the Inventive Concept

A novel approach to joint replacement surgery, adapting void filling prostheses for high-security, disaster relief, extreme weather, search and rescue, and extreme cold weather conditions, ensuring enhanced stability, rapid deployment, and environmental resistance.

Background and Problem Solved

The original patent disclosed a void filling joint prosthesis for general orthopedic procedures. However, this invention is limited to conventional operating environments. The new inventive concept addresses the need for specialized joint prostheses capable of withstanding extreme conditions, such as high-impact environments, emergency situations, high-humidity or high-salinity environments, confined or remote environments, and extreme cold weather conditions.

Detailed Description of the Inventive Concept

The inventive concept comprises a family of void filling prostheses and corresponding surgical instrument sets, each tailored to a specific extreme environment. The high-security prosthesis features a reinforced central body and legs for enhanced stability. The disaster relief prosthesis is designed for rapid deployment and simplified surgical protocol. The extreme weather prosthesis incorporates corrosion-resistant materials and a protective coating. The search and rescue prosthesis is lightweight and adapted for use in confined environments. The extreme cold weather prosthesis features thermal insulation and a specialized surgical protocol.

Novelty and Inventive Step

The new claims introduce novel adaptations of the void filling prosthesis concept to address specific extreme environments, providing enhanced stability, rapid deployment, and environmental resistance. These adaptations are non-obvious and not anticipated by the original patent.

Alternative Embodiments and Variations

Alternative embodiments may include modular prostheses for customized assembly in various extreme environments, or prostheses with integrated sensors for real-time monitoring of implant performance. Variations may also include prostheses designed for specific joint types, such as shoulder or wrist joints.

Potential Commercial Applications and Market

The specialized void filling joint prostheses have significant commercial potential in the orthopedic industry, particularly in niches such as high-security facilities, disaster relief organizations, search and rescue operations, and extreme weather environments. The market for these prostheses is expected to grow as the need for specialized joint replacement solutions increases.

CPC Classifications

SectionClassGroup
A A61 A61B17/1675
A A61 A61B17/164
A A61 A61B17/17
A A61 A61B17/1764
A A61 A61F2/30724
A A61 A61F2/30734
A A61 A61F2/30767
A A61 A61F2/38
A A61 A61F2/3859
A A61 A61F2/461
A A61 A61B2090/036
A A61 A61B2090/062
A A61 A61F2002/3021
A A61 A61F2002/3069
A A61 A61F2002/3093
A A61 A61F2002/30332
A A61 A61F2002/30736

Field of Art

Orthopedic surgical techniques and prosthetic joint replacement, specifically focusing on void filling prostheses for bone reconstruction with expertise in surgical instrumentation, biomaterials, and joint reconstruction methods

Person of Ordinary Skill (PHOSITA) Profile

A biomedical engineer or orthopedic surgical device designer with advanced degree, 5-10 years experience in medical device development, familiar with surgical implant design, material science, and adaptive prosthetic technologies

Obviousness Rationale

A PHOSITA would recognize that the source patent's fundamental void filling joint prosthesis design provides a clear technical foundation for environmental adaptations. The disclosed variations represent predictable extensions of existing prosthetic design principles, utilizing known engineering strategies to modify material composition, structural reinforcement, and surgical deployment protocols. These adaptations demonstrate standard design optimization techniques within orthopedic prosthetic engineering.

Obvious Combinations & Variations

Source Patent Element
Press-fit fixation method for void filling prosthesis
PTD Variation
High-security prosthesis with reinforced central body and legs for enhanced stability
Obviousness Reasoning
Modifying prosthesis geometry for increased mechanical stability is a predictable design variation using known structural engineering principles, representing a routine design optimization for specific use environments
Source Patent Element
Surgical method for positioning prosthesis within bone void
PTD Variation
Simplified surgical protocol for disaster relief and emergency deployment scenarios
Obviousness Reasoning
Adapting surgical techniques for rapid deployment represents a standard engineering approach to contextualizing medical devices for specialized environments, using known procedural modification strategies
Source Patent Element
Femoral joint prosthesis with specific sidewall opening configuration
PTD Variation
Corrosion-resistant prosthesis with protective coating for extreme weather conditions
Obviousness Reasoning
Incorporating material science techniques to enhance environmental resistance is a predictable engineering solution, utilizing well-established material modification strategies known in medical device development
Source Patent Element
Void filling prosthesis for bone reconstruction
PTD Variation
Lightweight prosthesis designed for search and rescue operations in confined environments
Obviousness Reasoning
Reducing prosthesis weight and adapting dimensional characteristics represents a standard design optimization approach, applying known material selection and geometric modification techniques
Source Patent Element
Surgical method for implanting joint prosthesis
PTD Variation
Thermally-insulated prosthesis with specialized cold weather surgical protocol
Obviousness Reasoning
Developing environment-specific thermal management strategies is a predictable engineering response to operational constraints, utilizing known thermal insulation and procedural adaptation techniques
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857205 and the disclosed technical variations, a person having ordinary skill in the art would find the presented prosthetic adaptations obvious and predictable extensions of existing void filling joint prosthesis technologies. The systematic environmental modifications represent standard engineering design choices that would be readily conceived by a skilled practitioner without requiring inventive insight beyond the existing prior art.

Original Patent Information

Patent NumberUS 11,857,205
TitleVoid filling joint prosthesis and associated instruments
Assignee(s)Howmedica Osteonics Corp.