Virtual Pathway Bone Lesion Access via Localizing Pin
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Solution Overview
Problem
Current surgical procedures for addressing bone lesions and tumors often weaken the bone structure by damaging surrounding load-bearing bone tissue, as they require opening the bone to access the lesion, which is particularly problematic in joints like the spine, knees, and shoulders.
Innovation Solution
A system and technique using an intra-articular localizing pinning member to create a virtual pathway for accessing bone lesions without penetrating the bony structure, allowing for precise localization and minimally invasive entry access points, enabling the delivery of substances or devices to modify or visualize the lesion while preserving the load-bearing bone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bone is opened or removed to provide access to the lesion, then the lesion can be accessed and treated, but the load bearing bone structure is weakened
Solution Approach 1:
A guide component acts as an intermediary device that enables access to the lesion through a remote entry point without requiring direct opening of the bone at the lesion site. The guide component includes a guide body with a guide bore that directs instruments along a trajectory to reach the lesion, allowing treatment while preserving the bone structure at critical load-bearing areas
Solution Approach 2:
The system utilizes a three-dimensional trajectory approach by positioning the entry point at a remote location and angling the guide bore to intersect the lesion from a different spatial dimension. This allows access to the lesion through a path that does not compromise the load-bearing bone structure, effectively solving the contradiction by changing the dimensional approach to lesion access
2Strength
If a remote entry point is used to access the lesion, then the load bearing bone structure is preserved, but the difficulty of accessing lesions distant to the entry point increases
Solution Approach 1:
The guide component serves as a mediator that bridges the gap between the remote entry point and the lesion. The guide body with its precisely oriented guide bore provides a mechanical intermediary that directs instruments along the correct trajectory, eliminating the difficulty of accessing distant lesions while maintaining bone structure integrity
Solution Approach 2:
The guide component is positioned and secured to the bone surface before the actual lesion access is attempted. This preliminary positioning establishes the correct trajectory and entry point, making the subsequent access to distant lesions straightforward and precise rather than difficult
3Reliability
If the entry access is created at a remote location from the lesion, then faster healing and reduced pain are achieved, but the precision of localization and access to the lesion decreases
Solution Approach 1:
The guide component acts as a precise intermediary that maintains accurate localization of the lesion despite the remote entry point. The guide bore is precisely oriented and positioned to ensure that instruments passed through it accurately reach the target lesion, thereby maintaining measurement precision while enabling the benefits of remote entry for healing and pain reduction
Data Source
AI summary
A technique for accessing extra articular lesions or abnormalities or intra osseous lesions or abnormalities or bone marrow lesions or all has the step of positioning the localizing pinning member onto cartilage or subchondral bone to define a virtual pathway through the cartilage or subchondral bone towards or into or through the lesion or abnormality or a desired target to create the virtual pathway utilizing an intra articular localizing pinning member to determine a location of the lesion or abnormality wherein the utilization of the localizing pinning member includes the step to locate or stabilize or both and thereafter using the virtual pathway to create an entry access.