Adjustable Cancer Therapy Delivery Assembly for Catheter Positioning
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Solution Overview
Problem
Existing cancer therapy delivery systems face challenges in precisely positioning catheters for targeted radiation therapy, particularly for unresectable tumors, and require effective shielding against beta radiation emitted by therapeutic microspheres.
Innovation Solution
A cancer therapy delivery assembly with adjustable components, including a rotatable component holder, vertical position adjustment, and transparent shielding, allows for precise catheter positioning and protection against beta radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed housing structure is used for cancer therapy delivery, then the device structure is simple, but the catheter positioning precision is insufficient
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed housing structure into an adjustable one. The outer housing can be moved vertically relative to the inner housing along guide rails, and the rotatable component holder can rotate to different angles. This dynamic adjustment capability allows precise positioning of the catheter while maintaining a relatively simple overall structure through modular design.
2Object-affected harmful factors
If shielding material is added to protect against beta radiation, then radiation protection is improved, but the device transparency and visibility are reduced
Solution Approach 1:
The patent applies the local quality principle by using transparent shielding material specifically in the areas where visibility is needed, rather than using opaque material throughout the entire device. The transparent shielding allows clinicians to observe the catheter positioning and microsphere delivery process while still providing adequate beta radiation protection. This localized application of transparency maintains protection effectiveness while improving visibility.
3Measurement precision
If manual adjustment mechanisms are used for vertical position, then the device complexity is low, but the positioning precision and ease of operation are reduced
Solution Approach 1:
The patent applies the intermediary principle by introducing a gear mechanism as a mediator between the manual input (handwheel or button) and the outer housing movement. The gear mechanism translates simple rotational or linear input into precise vertical positioning of the outer housing relative to the inner housing. This intermediary mechanism enhances positioning precision while keeping the overall adjustment system relatively simple and easy to operate.
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
Enables precise delivery of therapeutic microspheres to target sites while safeguarding clinicians and others from radiation exposure, enhancing the efficacy and safety of targeted radiation therapy.
Implementation Method 1
A transparent shielding member can be included that can be disposed over the rotatable component holder
Data Source
AI summary
Embodiments herein relate to a cancer therapy delivery system including a cancer therapy delivery assembly or box with adjustment features. In an embodiment, a cancer therapy delivery assembly includes a base, an inner housing disposed over the base, and an outer housing disposed over the inner housing. The outer housing is moveable along a vertical axis relative to the inner housing. The assembly can also include a rotatable component holder disposed on the outer housing and configured to rotate relative to the outer housing. The assembly can also include a transparent shielding member disposed over the rotatable component holder and a catheter support arm attached to the rotatable component holder. The catheter support arm can be configured to adjustably move inward or outward with respect to a center of the cancer therapy delivery assembly. Other embodiments are also included herein.