Arthroscopic Hip Arthroplasty System with Navigation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current methods for hip joint arthroplasty require open surgical procedures, leading to significant iatrogenic soft tissue trauma, prolonged recovery, and increased morbidity, with no practical method for arthroscopic-assisted hip joint arthroplasty.

Innovation Solution

The development of arthroscopic systems and methods utilizing a distraction system, visualization system, reaming system, and fixation system, including computer-assisted navigation, to facilitate precise removal of diseased tissue and placement of biocompatible arthroplasty components through a retrograde approach, minimizing tissue trauma and enabling arthroscopic hip joint arthroplasty.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If open surgical procedures are used for hip joint arthroplasty, then complete access to the joint is achieved, but significant iatrogenic soft tissue trauma occurs

Engineering Contradiction:

Improveaccess to jointVSAvoidsoft tissue trauma

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an arthroscopic system as an intermediary tool that allows visualization and surgical intervention through small incisions rather than large open incisions. The arthroscope and specialized arthroplasty instruments serve as mediators to achieve joint access while minimizing soft tissue disruption, combining the benefits of open surgery accessibility with arthroscopic minimality.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional open mechanical surgical approaches with arthroscopic-based mechanical systems. Specialized arthroplasty instruments designed for arthroscopic use substitute for traditional open surgical tools, enabling bone resection, reaming, and implant placement through small portals while maintaining arthroscopic visualization.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If open surgical procedures are used for hip joint arthroplasty, then adequate exposure is obtained, but prolonged recovery time results

Engineering Contradiction:

Improvesurgical exposureVSAvoidrecovery time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent segments the surgical approach into multiple small portal incisions rather than one large incision. This segmentation allows for adequate exposure through distributed access points, each causing minimal tissue disruption, thereby enabling complete arthroplasty procedures while reducing overall trauma and accelerating recovery.

Inventive Principle:

Principle #1Segmentation

3Ease of operation

If traditional open approaches are used, then comprehensive joint access is achieved, but increased surgical morbidity occurs

Engineering Contradiction:

Improvejoint accessVSAvoidsurgical morbidity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The arthroscopic system acts as an intermediary that provides comprehensive joint access through indirect visualization and specialized instruments. This intermediary approach maintains the ability to perform complete arthroplasty procedures while reducing direct tissue disruption and associated surgical morbidity.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Object-affected harmful factors

If arthroscopic approach is developed for hip arthroplasty, then reduced tissue trauma is achieved, but procedural complexity increases

Engineering Contradiction:

Improvetissue traumaVSAvoidprocedural complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent employs a universal arthroscopic system that performs multiple functions including visualization, bone resection, reaming, and implant placement through a single integrated approach. This multi-functional system reduces the need for multiple specialized open surgical setups, thereby reducing tissue trauma while managing procedural complexity through consolidation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent inverts the traditional approach by using small incisions with magnified visualization rather than large incisions with direct visualization. This inversion requires specialized arthroplasty instruments designed for arthroscopic use, which operate in reverse fashion compared to traditional open instruments, enabling minimally invasive access while achieving complete arthroplasty procedures.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS8828008B2Apparatus for arthroscopic assisted arthroplasty of the hip joint

Publication Date: 2014.09.09 STUBBS ALLSTON J

AI summary

Devices, systems and methods for performing arthroscopic evaluations and procedures in and near the hip joint are provided. An arthroscopic assisted arthroplasty system is useful in the treatment of arthritic hip conditions, conserving healthy tissue, and limiting iatrogenic injury associated with traditional surgical exposures. A guide wire system employing retrograde and antegrade reamers along the femoral neck is useful in anatomic placement of instrumentation without formal hip dislocation. Fluoroscopy and computer assisted navigation enhance the system, methods, and apparatus. Acetabular and femoral collapsible prosthetic forms are useful in arthroscopic assisted placement. The devices, systems, and methods are effective to assist an operating surgeon in the addressing mild to moderate arthritic conditions of the femoral head and acetabulum where tissue conservation and surgical exposure morbidities should be limited.