Orthopedic Bonding Agent Tool with Vented Cells for Bone Penetration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The bond between orthopedic replacement joints and bones in joint replacement surgery tends to break down prematurely, limiting the lifespan of the replacement joint due to inadequate bonding.
Innovation Solution
A tool with a handle and head containing compartmentalized cells filled with bonding agent, designed to be shaped according to the bone, which applies pressure to inject the agent deep into the bone's surface, preventing lateral flow and ensuring uniform penetration by cutting into the bone and using vented cells to maintain the agent in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bonding agent is applied to bone surface during joint replacement, then attachment between replacement joint and bone is achieved, but the bond breaks down prematurely limiting joint lifespan
Solution Approach 1:
The bonding agent is divided into multiple compartments within the applicator tool, allowing controlled delivery of the bonding material in segmented portions directly into the bone marrow cavity. This segmentation enables precise placement and prevents premature bonding agent depletion, ensuring sustained bonding strength throughout the joint replacement procedure.
Solution Approach 2:
The bone surface is prepared in advance by creating a cavity or channel in the bone marrow cavity before applying the bonding agent. This preliminary preparation ensures optimal receptivity and creates a dedicated pathway for the bonding agent, preventing premature breakdown and extending the bond's effective duration.
2Strength
If bonding agent is forced deep into bone surface, then penetration and attachment strength are improved, but lateral flow of agent is prevented
Solution Approach 1:
The applicator tool features a localized delivery mechanism with a tip configured to insert into a specific cavity or channel in the bone marrow cavity. This local quality design ensures the bonding agent is delivered precisely where needed, deep into the bone surface, while the tool's structure prevents lateral flow by confining the agent within the designated pathway.
Solution Approach 2:
The applicator tool acts as an intermediary device between the bonding agent and the bone surface. It mediates the delivery process by forcing the agent deep into the bone while its structural design (including the cavity or channel configuration) simultaneously prevents lateral flow, ensuring the agent remains in place for optimal bonding.
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 tool enhances the bonding agent's hold on the replacement joint, providing a stronger and more durable attachment that reduces exposure to internal conditions, thereby extending the joint's longevity.
Implementation Method 1
A force may be applied to the base plate forcing the cells to cut into the bone and forcing the bonding agent into the cuts and pores in the bone
Implementation Method 2
The cells may be filled with the bonding agent. The top of the walls of the plurality of cells may be placed against the prepared bone end where the joint is being replaced. A force may be applied to the base plate forcing the cells to cut into the bone
Implementation Method 3
A force may be applied to the base plate forcing the cells to cut into the bone
Implementation Method 4
forcing the cells to cut into the bone and forcing the bonding agent into the cuts and pores in the bone
Implementation Method 5
a bonding agent (e.g., polymethylmethacrylate cement) is used to attach the replacement joint to the bone
Data Source
AI summary
The present disclosure relates to a tool for injecting a bonding agent into the prepared end of a bone for bonding a joint replacement device to the bone. The tool incorporates vented cells for containing the bonding agent. Force is applied to the back of the tool, while placing the front of the tool filled with bonding agent against the prepared bone area. The force causes the cells to cut into the end of the prepared bone. The force also causes the bonding agent to be forced deep into the cuts and pores of the bone.