Adjustable Radiating Section Length Electrosurgical Ablation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current electrosurgical devices face challenges in precisely controlling the ablation volume and pattern, making it difficult to avoid unintended tissue damage during procedures, as the extent of microwave energy radiation into tissue is hard to assess, leading to potential damage to healthy tissues or vital structures.
Innovation Solution
The development of an electrosurgical system with an ablation device featuring a radiating section of adjustable length and gap distance, allowing for selective adjustment of the ablation field, enabling more precise control over the ablation volume and pattern through a length adjustment member and a gap adjustment member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed-length radiating section is used in the ablation device, then the device structure is simple, but the ablation volume and pattern cannot be precisely controlled
Solution Approach 1:
The radiating section is designed with adjustable length through a telescopic mechanism, allowing it to extend or retract to different positions. This dynamic adjustment capability enables precise control over the ablation volume and pattern while maintaining a relatively simple overall device structure when not in use.
Solution Approach 2:
The length of the radiating section can be changed to different predetermined positions, allowing modification of the ablation parameters. By adjusting the radiating section length, clinicians can control the depth and volume of tissue ablation to match specific surgical requirements.
2Productivity
If the radiating section length is extended to increase ablation volume, then more tissue can be treated, but the risk of damaging healthy tissues increases
Solution Approach 1:
The adjustable radiating section allows the ablation zone to be dynamically adapted to the size and shape of the tumor. By extending the radiating section only as much as needed to encompass the tumor, clinicians can treat larger volumes while minimizing exposure of surrounding healthy tissues to microwave energy.
Solution Approach 2:
The ability to adjust the radiating section length enables localized treatment where the ablation energy is concentrated precisely where needed. This ensures that the extended ablation volume does not uniformly increase risk to healthy tissues, but rather focuses energy on the target lesion.
3Adaptability or versatility
If the ablation device uses a fixed gap distance, then the device is easier to manufacture, but the ablation pattern cannot be tailored to specific surgical needs
Solution Approach 1:
The gap between the radiating section and tissue can be adjusted to different predetermined distances, allowing customization of the ablation pattern. This dynamic adjustment capability provides versatility for different surgical scenarios while maintaining manufacturing simplicity through a standardized adjustment mechanism.
Solution Approach 2:
By changing the gap distance parameter, the ablation pattern can be optimized for different tissue types and tumor configurations. The adjustable gap allows clinicians to control the penetration depth and distribution of microwave energy to match specific surgical requirements.
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 solution enables more precise tissue ablation treatments, reducing the risk of unintended tissue damage, leading to shorter recovery times, fewer complications, and improved patient outcomes by allowing clinicians to tailor the ablation field to specific surgical needs.
Implementation Method 1
electromagnetic energy is passed through the probes into surrounding tissue
Implementation Method 2
electromagnetic energy is passed through the probes into surrounding tissue to heat and destroy tumor cells
Data Source
AI summary
An energy applicator for directing energy to tissue includes a feedline and a radiating section operably coupled to the feedline, wherein the radiating section has a length. The energy applicator also includes a length adjustment member adapted to allow for selective adjustment of the length of the radiating section.