Bone Repair Kit for Osteonecrosis Treatment
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Solution Overview
Problem
Current treatments for osteonecrosis of the femur, such as core decompression, are ineffective in preventing disease progression and often require later-stage surgical interventions like femur or hip joint replacement, significantly impacting the patient's quality of life and increasing medical costs.
Innovation Solution
A bone repairing kit and method that involves a drilling device to extract a bone column from the femur, a pushing device to remove the osteonecrosis area, a clamping member to shape the bone column, and a hole saw to create a protruding portion, allowing for single-stage femur repair without leaving the operating table, using a carrier and enzymes to facilitate bone regeneration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If core decompression is performed for osteonecrosis of the femur, then pain relief is achieved, but the disease progression is not prevented and femur collapse occurs in later stages
Solution Approach 1:
The invention segments the treatment into two distinct phases: first, core decompression to relieve pain and reduce pressure in the necrotic area; second, implantation of a bone regeneration promoter containing carrier into the created cavity to actively promote bone regeneration and prevent disease progression. This segmentation allows each component to address specific aspects of the disease effectively.
Solution Approach 2:
The bone regeneration promoter containing carrier acts as an intermediary substance that bridges the gap between core decompression and natural bone regeneration. It introduces external biological factors (growth factors, osteoinductive materials) that accelerate and enhance the bone healing process, preventing femur collapse while maintaining the benefits of core decompression.
2Strength
If femur or hip joint replacement is performed in later stages of osteonecrosis, then structural support is restored, but patient quality of life is significantly affected and medical treatment cost increases
Solution Approach 1:
The invention performs preliminary bone regeneration promotion immediately after core decompression, before femur collapse and arthritis occur. By introducing the bone regeneration promoter containing carrier in the early stages (stage 3), it prevents the need for complex joint replacement surgeries in later stages, thereby avoiding the associated quality of life impacts and increased medical costs.
Solution Approach 2:
The bone regeneration promoter containing carrier enables the bone tissue to self-regenerate and self-repair by providing osteoinductive factors and growth factors that stimulate natural bone healing processes. This self-service approach eliminates the need for mechanical replacement interventions, preserving patient quality of life and reducing treatment complexity.
3Reliability
If multiple surgical interventions are required for osteonecrosis treatment, then comprehensive care is provided, but treatment time increases and patient convenience decreases
Solution Approach 1:
The invention merges two previously separate surgical interventions (core decompression and bone regeneration promotion) into a single integrated procedure. The bone regeneration promoter containing carrier is implanted into the cavity created during core decompression in the same surgical session, providing comprehensive treatment while reducing the number of separate operations and associated recovery periods.
Data Source
AI summary
A bone repairing kit including a drilling device, a pushing device, a clamping member and a hole saw. An end of a tube body of the drilling device is a knife portion. When the tube body rotates with respect to a femur, a bone column is cut by the knife portion and located in the tube body. The pushing device includes a hollow tube and a push bar. The hollow tube is for receiving the tube body. The push bar is for touching and pushing the bone column in the tube body. The clamping member is for clamping the bone column. The hole saw includes a receiving body and cutting knives. The receiving body has a recess for receiving an end of the bone column. The cutting knives surrounding on an inner wall of the recess are for cutting an edge of the end of the bone column.