Bone Treatment Cannula System for Necrotic Tissue Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current treatments for osteonecrosis, such as Legg-Calve-Perthes disease, face challenges in effectively promoting bone regeneration and removing necrotic tissue, leading to inadequate healing and potential complications like bone resorption.
Innovation Solution
A method involving drilling holes into affected bones, inserting needles or cannulas to wash out dead cell debris and necrotic fat with a biocompatible fluid, followed by the introduction of bone growth-promoting materials like autologous bone marrow or BMP-2, using a surgical instrument with drill bits and a drill guide for precise placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current treatments for osteonecrosis are used, then the treatment process is simple, but bone regeneration is inadequate and necrotic tissue is not effectively removed
Solution Approach 1:
The treatment process is divided into distinct functional modules: drilling holes in the bone, inserting needles/cannulas, washing necrotic tissue with biocompatible fluid, and introducing bone growth-promoting materials. This segmentation allows each step to be optimized independently while maintaining overall treatment effectiveness.
Solution Approach 2:
Before introducing bone growth-promoting materials, the method performs preliminary washing of necrotic tissue using biocompatible fluid through the inserted needles or cannulas. This preliminary cleaning action removes dead cell debris and necrotic fat, creating a better environment for subsequent bone regeneration.
2Manufacturing precision
If bone growth-promoting materials are introduced without washing, then the treatment is simpler, but therapeutic agents leak and distribution is poor
Solution Approach 1:
The method performs preliminary washing of the bone interior through inserted needles or cannulas using biocompatible fluid to remove necrotic tissue before introducing bone growth-promoting materials. This preliminary cleaning action improves the distribution and retention of therapeutic agents by eliminating barriers to material delivery.
Solution Approach 2:
Biocompatible fluid serves as an intermediary substance that facilitates the removal of necrotic tissue and creates a pathway for subsequent introduction of bone growth-promoting materials. The fluid acts as a mediator between the necrotic environment and the therapeutic materials, improving their distribution.
3Strength
If necrotic tissue is not cleared, then the treatment procedure is shorter, but bone healing is compromised and resorption increases
Solution Approach 1:
The method performs preliminary washing of necrotic tissue through inserted needles or cannulas using biocompatible fluid before introducing bone growth-promoting materials. This preliminary cleaning action, while adding time to the procedure, significantly improves bone healing quality by removing dead cell debris and necrotic fat that would otherwise compromise regeneration.
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
This approach enhances bone healing by clearing necrotic tissue, minimizing leakage of therapeutic agents, and improving the distribution and retention of bone growth materials, resulting in increased bone formation and reduced resorption.
Implementation Method 1
washing an interior of the bone with a washing fluid introduced through one or more of the needles or cannulas inserted into the bone
Implementation Method 2
introducing one or more bone growth promoting materials into the bone
Data Source
AI summary
The present invention includes a method and devices for treating osteonecrosis in, e.g., children, adolescents, and adults comprising: identifying a subject in need of treatment for osteonecrosis; drilling two or more holes into a bone in need of treatment for osteonecrosis; inserting two or more needles or cannulas into the holes in the bone; washing an interior of the bone with a washing fluid introduced through one or more of the needles or cannulas inserted into the bone; and after washing the interior of the bone introducing one or more bone growth promoting materials or cells into the bone.