Integrated Osteochondral Coring Tool for Precise Graft Cavities
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Solution Overview
Problem
Current osteochondral restoration methods require multiple surgical instruments and significant surgical skill to precisely remove lesions in articulating joints, often failing to match the size and geometry of the lesion accurately.
Innovation Solution
A combined surgical apparatus comprising a tube, drill shaft, and coring housing with a cutting blade, allowing precise core removal of circular sections of cartilage and bone to create a cavity for graft reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple surgical instruments are used to remove lesions, then the surgeon can address various lesion types, but the procedure becomes time-consuming and complex
Solution Approach 1:
The patent combines multiple surgical functions (coring, cutting, and lesion removal) into a single integrated apparatus. The device integrates a coring component with cutting blades and a housing that performs multiple operations simultaneously, eliminating the need to switch between separate instruments and thereby reducing procedure time while maintaining versatility in treating different lesion types.
Solution Approach 2:
The surgical apparatus is designed as a multi-functional device that can perform coring, cutting, and lesion removal operations. The universal design allows the single instrument to adapt to various lesion types and anatomical locations, providing the versatility of multiple specialized tools while simplifying the surgical workflow and reducing overall procedure time.
2Adaptability or versatility
If multiple surgical instruments are used, then different functions can be performed, but the device complexity and skill requirement increase
Solution Approach 1:
The patent merges multiple surgical instruments into a single integrated apparatus that combines coring, cutting, and lesion removal capabilities. This consolidation reduces the number of separate tools the surgeon must manage while maintaining the functional versatility needed to address different lesion types and surgical requirements.
Solution Approach 2:
The apparatus is designed as a universal surgical tool that performs multiple functions through integrated components. The device includes adjustable cutting blades, coring mechanisms, and housing structures that can be configured for different surgical tasks, thereby reducing device complexity while preserving broad adaptability across various osteochondral restoration scenarios.
3Ease of operation
If manual coring tools are used, then the surgeon has control, but precision in matching lesion size and geometry is difficult to achieve
Solution Approach 1:
The patent incorporates adjustable and movable components within the surgical apparatus, including adjustable cutting blades and depth-controlled coring mechanisms. These dynamic features allow the surgeon to maintain manual control while achieving precise cavity dimensions that match the lesion size and geometry, overcoming the limitations of fixed manual coring tools.
Solution Approach 2:
The apparatus allows for adjustment of critical parameters such as cavity depth, diameter, and shape through movable components and interchangeable elements. This capability enables the surgeon to precisely match the lesion characteristics while maintaining ease of operation, thereby resolving the contradiction between manual control and manufacturing precision.
4Device complexity
If fixed cutting blades are used in coring tools, then the structure is simple, but the ability to match varying lesion geometries is limited
Solution Approach 1:
The patent replaces fixed cutting blades with adjustable and movable blade configurations that can be repositioned to match varying lesion geometries. This dynamic design maintains relatively simple structure while significantly improving adaptability to different lesion sizes, shapes, and locations, allowing the same apparatus to handle diverse surgical requirements.
Solution Approach 2:
The apparatus incorporates adjustable parameters including blade angle, position, and depth control that can be modified to match the specific geometry of each lesion. These parameter changes enable the device to adapt to varying lesion characteristics without requiring completely different instruments for each case, thereby maintaining structural simplicity while enhancing versatility.
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 precise and efficient creation of a cavity for graft reception, reducing the need for multiple tools and improving surgical precision in osteochondral restoration.
Implementation Method 1
at least one cutting blade disposed at the distal end of the drill shaft
Data Source
AI summary
There is disclosed apparatus for effecting osteochondral restoration. In an embodiment, the apparatus includes a tube having a distal end, a proximal end and a lumen extending therebetween. A drill shaft is rotatably disposed in the lumen of the tube, the drill shaft comprising a distal end and a proximal end. At least one cutting blade is disposed at the distal end of the drill shaft. A coring housing extends from the distal end of the tube and disposed around the at least one cutting blade, the coring housing terminating in a distal cutting surface. Other embodiments are also disclosed.