Segmented Bone Plate Structure for Minimally Invasive Fixation
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Solution Overview
Problem
Conventional bone plate structures for fixing distal radius fractures require large surgical wounds, leading to tissue damage and impaired wrist function post-surgery due to their single, large-diameter design.
Innovation Solution
A bone plate structure comprising a first and second bone plate with stacking and extending portions, allowing for minimally invasive implantation by expanding the outer diameter when stacked, with a surgery device using clamping and guiding components to facilitate precise placement and fixation through small incisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single large-diameter bone plate structure is used for fixing distal radius fractures, then the bone fixation strength is improved, but the surgical wound size increases causing tissue damage and impaired wrist function
Solution Approach 1:
The bone plate structure is divided into a first bone plate and a second bone plate that are inserted separately through small incisions. These two separate plates work together to provide the necessary fixation strength, eliminating the need for a single large-diameter plate that would require a large surgical wound.
Solution Approach 2:
The first bone plate and second bone plate are designed to be stacked together, with one plate positioned within or alongside the other. This nested configuration allows both plates to occupy a compact space while collectively providing the required structural strength for bone fixation.
2Strength
If a single large-diameter bone plate structure is used, then the bone fixation capability is improved, but the surgical operation complexity and tissue destruction increase
Solution Approach 1:
By segmenting the bone plate into two smaller plates that can be inserted through minimal incisions, the surgical procedure becomes less invasive despite the added component. The segmentation allows for simpler insertion procedures compared to maneuvering a single large plate through tissue.
Solution Approach 2:
The first and second bone plates are merged together through stacking to achieve the required fixation capability. This combining of multiple simple components creates the functional equivalent of a single complex large-diameter plate while maintaining surgical simplicity.
3Stability of the object's composition
If a single large-diameter bone plate structure is used, then the structural stability is improved, but the surgical wound size and recovery time increase
Solution Approach 1:
The segmentation into two smaller plates allows for minimally invasive insertion through small incisions, reducing surgical trauma and enabling faster patient recovery while maintaining the structural stability needed for bone fixation through the combined action of both plates.
Solution Approach 2:
The nested stacking configuration of the two bone plates provides structural stability comparable to a single large plate while minimizing the surgical footprint. This nested arrangement reduces tissue disruption and accelerates the healing and recovery process.
Data Source
AI summary
A bone plate structure adapted to fix a bone in an affected part is provided. The bone plate structure includes first and second bone plates. The first bone plate has a first stacking portion and a first extending portion and is adapted to be moved onto the bone through a wound of the affected part. The second bone plate has a second stacking portion and a second extending portion and is adapted to be moved onto the bone through the wound. When the first and second bone plates are located on the bone, the second bone plate is adapted to be moved relatively to the first bone plate, such that the first and second stacking portions are stacked with each other and the first and second extending portions are expanded relatively. A surgery device and a method for bone plate implant suitable for the bone plate structure is also provided.