Orthobiologic Bone Fracture Stabilization Implants
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Solution Overview
Problem
Conventional bone fracture treatments disrupt the microvascular environment and trabecular bone architecture, leading to delayed healing and residual deformities, with existing bone substitutes failing to provide optimal stability and regeneration.
Innovation Solution
The use of orthobiologic rods and spheres, specifically designed to conform to the shape of the bone fracture cavity, which are made from materials like calcium phosphate and have structural features to minimize movement and promote stability, while being absorbable to avoid additional surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional surgical techniques are used to provide immediate stability, then fracture stabilization is achieved, but the microvascular environment and trabecular bone architecture are disrupted, leading to delayed healing
Solution Approach 1:
The patent employs porous trabecular bone graft substitute material that replicates the natural trabecular bone architecture. This porous structure allows preservation of the microvascular environment while providing mechanical stability to the fracture, thereby resolving the contradiction between stabilization and healing preservation
Solution Approach 2:
The invention creates a copy of the natural trabecular bone structure through the use of graft substitute material with replicated trabecular architecture. This copied structure provides the necessary stability while maintaining the biological environment needed for healing, avoiding disruption to the microvascular network
2Stability of the object's composition
If rigid metal plates and screws are used for surgical fixation, then fracture stability is improved, but additional surgical procedures are required for implant removal
Solution Approach 1:
The patent changes the material parameters by using absorbable bone graft substitute material instead of permanent metal implants. This material provides the necessary mechanical stability during healing and then gradually absorbs, eliminating the need for removal surgery and reducing overall device complexity
Solution Approach 2:
The invention uses a temporary, absorbable bone graft substitute material that serves its stabilizing function during the healing period and then naturally degrades and is absorbed by the body. This disposable approach eliminates the need for implant removal procedures
3Object-affected harmful factors
If non-surgical cast treatment is used, then surgical risks are avoided, but residual deformity and loss of fracture reduction occur
Solution Approach 1:
The patent introduces porous trabecular bone graft substitute material as an intermediary that provides internal structural support within the fracture site. This mediator maintains fracture reduction and prevents deformity while being less invasive than external fixation, bridging the gap between non-surgical and surgical approaches
Data Source
AI summary
Implants and methods for stabilizing bone fractures are provided. In one embodiment, the implants are spheres. In another embodiment, the implants are rods. The rods can be used to stabilize peripheral portions of a bone fracture. The rods can be shaped and configured to correspond to the shape of a region of bone against which the rod will be deployed. The rods can be provided with surface features for engaging adjacent rods and/or adjacent regions of bone to further stabilize the rods. The spheres can be inserted to fill a remaining volume of the fracture cavity. The implants can be made from orthobiologic materials.