Magnetic Bone Modification System Periosteal Distraction
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Solution Overview
Problem
Current methods for modifying bone volume, such as autogenous bone grafting and synthetic bone replacement materials, are associated with increased surgical risks, immunological issues, and limited biological potency, lacking an ideal solution for reliable and well-tolerated bone formation or reduction.
Innovation Solution
A system utilizing a flat, extended lifting/pressure element inserted between the periosteum and bone, with a control element applying magnetic pressure or tension to create a targeted free space for bone formation or reduction, leveraging natural bone growth mechanisms by osteoblasts and osteoprogenitor cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If autogenous bone grafting is used to increase bone volume, then bone formation is achieved, but surgical risk increases due to requiring two surgeries
Solution Approach 1:
A lifting element is introduced as an intermediary device between the bone and periosteum to create and maintain a distraction space. This mediator enables bone formation by facilitating periosteal separation and subsequent bone growth without requiring bone harvesting from another site, thus eliminating the need for a second surgery while maintaining reliable bone formation.
Solution Approach 2:
The invention replaces the mechanical surgical intervention of harvesting and implanting bone grafts with a magnetic field-based system. A control element generates a magnetic field that acts on the lifting element to maintain the distraction space, substituting complex mechanical bone grafting procedures with a controllable magnetic field application that reduces surgical risk.
2Volume of stationary object
If synthetic bone substitute materials are implanted to increase bone volume, then bone volume is increased, but biological potency is limited resulting in incomplete restoration
Solution Approach 1:
The lifting element enables the body's own periosteum to perform bone formation naturally. By creating and maintaining a distraction space, the device allows osteoblasts and osteoprogenitor cells in the periosteum to self-organize and deposit new bone tissue, utilizing the body's intrinsic regenerative capabilities rather than relying on external synthetic materials with limited biological potency.
3Volume of stationary object
If metal plates or grids are used to create space for bone formation, then space is created, but infection risk increases due to tissue perforation
Solution Approach 1:
The invention replaces mechanical metal plates or grids that require tissue perforation and fixation with a magnetically actuated lifting element. This element can be inserted minimally invasively and controlled remotely via magnetic field, eliminating the need for extensive surgical exposure, drilling, and metal fixation hardware that create infection pathways.
4Volume of stationary object
If xenogeneic bone substitute material is implanted to increase bone volume, then bone volume is increased, but immunological problems occur due to species differences
Solution Approach 1:
The lifting element stimulates the patient's own periosteum to generate bone tissue through natural osteoblastic activity. This autologous bone formation process eliminates the need for xenogeneic materials that would trigger immunological responses, as the bone is produced by the patient's own cells rather than being introduced from another species.
5Volume of stationary object
If donor bone material is used to increase bone volume, then bone volume is increased, but availability is limited due to ethical and legal constraints
Solution Approach 1:
The lifting element transforms the bone formation process into a self-service system where the patient's own periosteum serves as the source of bone tissue. This eliminates dependence on limited donor bone supplies from ethical and legal constraints, as the system generates bone autonomously using the patient's existing biological resources.
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 gentle and reliable bone modification, allowing for controlled bone augmentation or reduction with minimal patient discomfort, utilizing magnetic force transmission to achieve desired bone shape and volume changes.
Implementation Method 1
the control element is designed to exert a magnetic pressure or tensile force on the lifting/pressure element
Data Source
Figure 1
Figure 2~3
AI summary
A system (1) for modifying a human or animal bone (2) should reliably enable, in an especially simple and in particular also especially well tolerated manner, a bone build-up or bone reduction of the bone (2) to be treated. For this purpose, according to the invention a lifting/pressing element (4) extending in a planar manner is provided for insertion between the periosteum (6) of the bone (2) to be treated and the underlying bone (2) or the overlying connective tissue, and a control element (10) associated with said lifting/pressing element is provided, the control element (10) being designed to apply a magnetic compressive or tensile force to the lifting/pressing element (4).