Multi-Functional Arthroscopic Probe for Joint Tissue Modification
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Solution Overview
Problem
Current arthroscopic surgical systems require frequent tool exchange and precise reorientation during procedures like subacromial decompression and bone removal, which complicates the process and increases procedural time.
Innovation Solution
A multi-functional arthroscopic probe with a working end configured for cutting soft tissue, applying RF energy, and bone cutting or burring, allowing these functions to be performed successively without removing the probe from the surgical site, utilizing a motor-driven hand piece with interchangeable tool probes and a ceramic cutting member with integrated RF electrodes and burr edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate tools are used for different tissue modification functions (soft tissue cutting, RF ablation, bone cutting), then functional versatility is improved, but device complexity and procedural time increase due to frequent tool exchange and reorientation
Solution Approach 1:
The patent combines multiple separate tools (soft tissue cutter, RF ablation probe, bone cutting burr) into a single integrated arthroscopic probe. The working end includes a cutting window for soft tissue, an RF electrode for ablation, and a burr for bone cutting, all accessible through one tool that can be exchanged as a single unit. This merging eliminates the need for multiple tool exchanges and reduces procedural complexity while maintaining functional versatility.
Solution Approach 2:
The arthroscopic probe is designed as a universal tool capable of performing multiple functions: soft tissue cutting through the cutting window, RF energy application through the electrode for ablation and coagulation, and bone cutting through the burr. This multi-functional design allows a single probe to replace multiple specialized tools, improving efficiency while managing device complexity through standardized interchangeability.
2Productivity
If a single multi-functional probe is used, then productivity is improved by reducing tool exchange, but device complexity increases due to integrating multiple functions in one tool
Solution Approach 1:
The probe is segmented into distinct functional modules at the working end: a cutting window for soft tissue, an RF electrode for ablation, and a burr for bone cutting. Each module can be independently designed and manufactured, then assembled into the complete probe. This segmentation allows for efficient production and assembly while enabling the single probe to deliver multiple functions without excessive complexity.
3Adaptability or versatility
If interchangeable tool probes are used with motor-driven hand piece, then adaptability is improved, but ease of operation deteriorates due to need for correct orientation and parameter configuration
Solution Approach 1:
The probe is pre-configured with all necessary functional elements (cutting window, RF electrode, burr) positioned in specific orientations before insertion. The cutting window is oriented to access soft tissue, the RF electrode is positioned for ablation, and the burr is configured for bone cutting. This preliminary configuration eliminates the need for intra-procedural reorientation, making operation easier while maintaining adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and flexible tissue modification within joints by reducing the need for tool exchange, enhancing procedural efficiency and safety by allowing continuous operation with a single probe, thereby streamlining procedures like subacromial decompression and bone removal.
Implementation Method 1
a first element for cutting soft tissue
Implementation Method 2
a second element for applying RF energy to tissue
Implementation Method 3
a third element for bone cutting or burring
Data Source
AI summary
A probe for treating shoulders and other joints has a working end which includes a first element for cutting soft tissue, a second element for applying RF energy to tissue, and a third element for cutting or burring bone. The probe is introduced to a working space in a patient's joint, such as the patient's subacromial space, typically under endoscopic viewing. Soft tissue is cut with the first element. Radiofrequency energy is applied with the second element to ablate or cauterize tissue, while bone may be burred with the third element. Successive treatments steps are performed by reorienting the treatment device in situ with removal or withdrawal of the working end.