Segmented Implant System for Radiation Therapy
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Solution Overview
Problem
Radiation therapy is hindered by the shadowing or absorption effects of conventional implant systems, leading to inadequate treatment outcomes, as these systems interfere with the precise localization and power delivery of radiation, especially in cases where tumors require postoperative reconstruction.
Innovation Solution
An implant system with distinct regions, one made of a material that is impermeable to radioactive radiation for structural support and another region with structural modifications that allow penetration of radiation, enabling improved localization and power adjustment during radiation therapy and diagnostics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional implant system with uniform material composition is used to provide structural support, then mechanical strength and stability are ensured, but radiation therapy effectiveness deteriorates due to shadowing and absorption effects
Solution Approach 1:
The implant system is divided into multiple regions with different material compositions: a first region with radiation-absorbing material for structural support and a second region with radiation-permeable material for radiation therapy. This segmentation allows each region to perform its specific function independently, resolving the contradiction between mechanical strength and radiation therapy effectiveness.
Solution Approach 2:
Different regions of the implant are assigned different material properties tailored to their specific functions. The first region uses materials with high atomic numbers (e.g., tungsten, gold) for radiation absorption and structural support, while the second region uses materials with low atomic numbers (e.g., titanium, polyethylene) for radiation permeability. This local differentiation of material quality enables simultaneous optimization of both mechanical strength and radiation therapy effectiveness.
2Stability of the object's composition
If an implant system is designed to be impenetrable to radiation for structural support, then mechanical stability is improved, but localization precision and power adjustment in radiation therapy deteriorate
Solution Approach 1:
The implant is segmented into a first region for structural stability and a second region for radiation interaction. The second region's radiation-permeable material allows radiation to pass through with minimal interference, enabling precise localization and power adjustment while the first region maintains mechanical stability.
Solution Approach 2:
The second region specifically uses materials with low radiation absorption characteristics, creating a local zone of improved radiation penetrability. This local quality enhancement in the second region allows precise radiation delivery without compromising the overall mechanical stability provided by the first region.
3Ease of manufacture
If a uniform material implant is used to ensure ease of manufacture, then production simplicity is maintained, but radiation input optimization deteriorates
Solution Approach 1:
The implant uses composite material construction with a first material for structural support and a second material for radiation permeability. This composite approach optimizes radiation input by allowing controlled radiation passage through the second region while maintaining structural integrity, achieving better radiation therapy outcomes compared to uniform materials.
Solution Approach 2:
The second region is specifically designed with materials optimized for radiation interaction, creating a local zone that enhances radiation input to the treatment area. This local optimization of material quality in the second region improves radiation therapy effectiveness without significantly complicating the overall manufacturing process.
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 implant system optimizes radiation input by allowing precise targeting of tumors while protecting surrounding healthy tissue, enhancing the effectiveness of radiation therapy and diagnostics.
Implementation Method 1
the first region being arranged to support the structural part and being substantially impenetrable for a specified radioactive radiation for medical radiation therapy
Implementation Method 2
the section of the second region is penetrable for the specified radioactive radiation for medical radiation therapy
Data Source
AI summary
In order to improve local specificity and adjustability of the radiant power in radiation diagnostics and in post-operative radiation therapy, the invention devises an implant system (100, 100′, 100″, 100′″) having a structural part (50, 50′, 50″, 50′″) that can be implanted in a damaged tissue region (30) and has at least a first region (10a, 10b, 10c, 10d) made of a first material and at least a second region (20a, 20b, 20c, 20d) made of a second material, the first region (10a, 10b, 10c, 10d) being designed to support the structural part (50, 50′, 50″, 50′″) and being substantially impermeable to a predetermined radiation for the purpose of diagnostics or for medical radiation therapy, and the second region (20a, 20b, 20c, 20d) being designed to complement the first region (10a, 10b, 10c, 10d) to the structural part (50, 50′, 50″, 50′″) and further comprising at least one portion (22a, 2b, 22c, 22d) that is structurally modified. The portion (22a, 2b, 22c, 22d) of the second region (20a, 20b, 20c, 20d) is permeable to the predetermined radiation for the purpose of diagnostics or for medical radiation therapy.