Brachytherapy Balloon Catheter with Integrated Microdiodes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current brachytherapy systems face challenges in achieving precise and predictable radiation dose delivery, particularly in maintaining proper placement and minimizing exposure to non-target tissues, especially in complex anatomical areas like the bladder and rectum, where existing methods lack effective shielding and real-time monitoring capabilities.
Innovation Solution
The development of a catheter-based system incorporating a therapeutic balloon with integrated radiation rods and microdiodes, along with hyperthermia components, which allows for precise positioning and real-time monitoring, using balloons for shielding and tissue manipulation, and incorporating adjustable components for tailored treatment delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If brachytherapy devices are used for radiation delivery, then radiation dosage can be delivered to target tissues, but exposure to non-target tissues (bladder and rectum) cannot be effectively minimized
Solution Approach 1:
The device divides the radiation delivery system into multiple independent radiation sources (multiple rods with radioactive isotopes) that can be individually positioned and controlled. This segmentation allows selective irradiation of different tissue regions while sparing non-target organs like the bladder and rectum through independent source positioning and intensity control.
Solution Approach 2:
The patent introduces an intelligent control system and planning software as intermediaries between the radiation sources and target tissues. This intermediary layer enables real-time calculation of radiation dose distribution, simulation of treatment outcomes, and dynamic adjustment of source positions to minimize exposure to non-target tissues while maintaining therapeutic doses at the tumor site.
2Reliability
If multiple implants are performed following HDR brachytherapy protocol, then treatment efficacy is improved, but treatment time and procedural complexity increase
Solution Approach 1:
The system performs preliminary treatment planning and simulation before actual radiation delivery. The planning software calculates optimal source positions, intensities, and treatment schedules in advance, allowing multiple implants to be pre-programmed. This preliminary action reduces procedural time during actual treatment by eliminating real-time calculations and enabling seamless transitions between multiple implant sessions.
Solution Approach 2:
The device enables continuous or near-continuous radiation delivery across multiple implant sessions through automated source positioning and integrated planning systems. The treatment protocol can be executed as a continuous process with minimal interruption between implants, maintaining therapeutic radiation doses while reducing overall treatment time compared to traditional discrete implant approaches.
3Manufacturing precision
If precise positioning of radiation sources is achieved, then radiation dosage accuracy is improved, but device complexity and placement difficulty increase
Solution Approach 1:
The radiation sources are nested within a hierarchical structure consisting of movable source holders, positioning mechanisms, and an external control system. This nested architecture allows precise positioning through coordinated movement of multiple components at different levels, achieving high dosage accuracy while managing complexity through modular design where each nested layer handles a specific aspect of positioning control.
Solution Approach 2:
The patent replaces complex mechanical positioning systems with computer-controlled and software-driven positioning mechanisms. Automated algorithms calculate optimal source positions, and motorized or magnetically actuated systems execute positioning with high precision. This substitution reduces mechanical complexity while maintaining or improving positioning accuracy through digital control and real-time feedback.
4Reliability
If real-time monitoring capabilities are added, then treatment safety is improved, but device complexity and cost increase
Solution Approach 1:
The system incorporates real-time feedback mechanisms including detectors that monitor radiation dose delivery, source positioning accuracy, and tissue response during treatment. This feedback is continuously fed to the control system, which automatically adjusts source positions, intensities, and treatment parameters to maintain safety margins and prevent overdose to non-target tissues. The feedback loop enables dynamic safety monitoring without requiring overly complex hardware.
Solution Approach 2:
The monitoring system is integrated with the existing radiation delivery and control infrastructure, allowing multiple functions (radiation delivery, positioning control, dose monitoring, and safety verification) to be performed by shared components. This multi-functionality reduces overall system complexity by eliminating redundant dedicated monitoring hardware and leveraging the computational and control capabilities already present in the brachytherapy system.
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 system enables precise and customizable radiation therapy with reduced exposure to non-target tissues, allowing for real-time monitoring and adjustment, thereby enhancing treatment efficacy and safety in complex anatomical regions.
Implementation Method 1
the balloon is inflated to move the rods to the body cavity or treatment site
Implementation Method 2
therapeutic radiation procedures... Radioactive material is delivered by implements... radioactive dose into the applicator already positioned within the body cavity
Implementation Method 3
microdiodes can be incorporated to achieve real-time treatment capabilities
Implementation Method 4
hyperthermia components can be included
Data Source
AI summary
Radiation therapy or brachytherapy devices, systems and methods are in general catheter form and include at least one balloon that assists in placement of radio therapeutic members at desired treatment locations within an existing body cavity or at a site that was formed under a patient's skin for treatment purposes. One or more detectors, such as microdiodes, are present on the device, and a hyperthermia tube or the like is also included that delivers hyperthermia treatment for the target treatment site or sites. Data collected by the detector allows the medical professional to monitor radiation treatment and, when desired, interaction between hyperthermia treatment and radiation delivery by the radiation treatment member.