Saddle-Shaped Interpositional Orthopedic Device for Bone Erosion Prevention
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Solution Overview
Problem
Conventional techniques for orthopedic pain management through implantable devices are invasive, often lead to bone erosion, and fail to restore normal range of motion and strength due to material erosion and the need for bone alteration.
Innovation Solution
An implantable interpositional orthopedic pain management device with a saddle-shaped structure that distracts bones to prevent direct contact, using materials with elastic moduli similar to bone to maintain joint stability and range of motion without invasive procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional implantable devices are used for orthopedic pain management, then pain relief is achieved, but bone erosion and material degradation occur over time
Solution Approach 1:
The patent introduces an interpositional device made of bone-like material as a mediator between degraded bone surfaces. This intermediary device prevents direct bone-to-bone contact that causes pain and friction, while its bone-mimetic composition prevents the harmful erosion effects seen with conventional metal or ceramic implants.
Solution Approach 2:
The patent applies homogeneity by using a device composed of material with elastic modulus similar to natural bone. This creates a homogeneous mechanical environment that matches the surrounding tissue, preventing stress shielding and minimizing harmful differences in material properties that lead to bone erosion and loosening.
2Reliability
If conventional surgical techniques are used to relieve orthopedic pain, then pain management is achieved, but range of motion and strength are reduced
Solution Approach 1:
The interpositional device serves as a mediator that restores the joint space and allows for controlled motion between bone surfaces. By preventing direct bone contact while maintaining joint architecture, the device enables pain-free movement and preserves range of motion and strength.
3Reliability
If invasive surgical procedures are performed for orthopedic pain management, then pain relief is achieved, but recovery time and surgical complexity increase
Solution Approach 1:
The interpositional device provides a minimally invasive solution by being inserted between bone surfaces without requiring extensive bone removal or reconstruction. This intermediary approach simplifies the surgical procedure, reduces operating time, and accelerates patient recovery compared to traditional invasive orthopedic surgeries.
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
The device effectively alleviates pain and restores joint stability and motion by preventing bone contact and erosion, offering a non-invasive solution for orthopedic pain management.
Implementation Method 1
using materials with elastic moduli similar to bone to maintain joint stability and range of motion
Data Source
AI summary
Techniques for implantable orthopedic pain management devices are disclosed, including a body having a body configured to be disposed in a cavity between a first toroidal shape and a second toroidal shape, the body being substantially saddle-shaped and configured to have a first saddle surface aligned on a first axis and a second saddle surface aligned on a second axis, and a channel formed on the body comprising a portion of the first saddle surface and another portion of the second saddle surface.