Integrated Electrosurgical Device for Injection and Hemostasis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medical devices require the exchange of injection and energy delivery devices during procedures, increasing duration and risk, and often fail to provide adequate energy delivery in both cutting and hemostasis modes.
Innovation Solution
A medical device with a shaft featuring a passive and active electrode configuration, allowing for extension and retraction to facilitate simultaneous energy delivery and fluid application without device removal, utilizing a handle for control and a movable electrode for dual-mode energy application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If device exchange is performed during procedure, then energy delivery capability is improved, but procedure duration and risk increase
Solution Approach 1:
The patent combines the injection needle and energy delivery device into a single integrated medical device. The active electrode is positioned within the needle shaft, allowing the same device to perform both fluid injection and energy delivery functions without requiring device exchange during the procedure.
Solution Approach 2:
The medical device is designed with multi-functionality, serving both as an injection needle for fluid delivery and as an energy delivery device for tissue treatment. The movable active electrode can be positioned to enable energy delivery through the needle or through a separate port, providing universal applicability for different procedural needs.
2Adaptability or versatility
If device exchange is performed during procedure, then energy delivery capability is improved, but procedure risk increases
Solution Approach 1:
The patent combines the injection needle and energy delivery device into a single integrated medical device. The active electrode is positioned within the needle shaft, allowing the same device to perform both fluid injection and energy delivery functions without requiring device exchange during the procedure.
3Productivity
If single device is used for both injection and energy delivery, then procedure efficiency is improved, but energy delivery adequacy worsens
Solution Approach 1:
The active electrode is designed to be movable within the needle shaft, allowing dynamic repositioning between different positions. This enables the electrode to be extended for energy delivery through the needle or retracted for energy delivery through a separate port, adapting to different treatment requirements while maintaining procedural efficiency.
Solution Approach 2:
The device segments the energy delivery function into two possible pathways: through the needle shaft itself or through a separate port. This segmentation allows the single device to provide adequate energy delivery for different modes (cutting and hemostasis) by utilizing the appropriate pathway.
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 efficient and safe treatment of tissue by allowing simultaneous resection and hemostasis without device exchange, reducing procedure time and risk, while providing precise energy delivery and fluid management.
Implementation Method 1
treating tissue by delivering electrical energy to the tissue
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3C
AI summary
The present invention relates to a medical device, comprising a handle with a main part and a movable part, wherein at least one of the main part or the movable part includes a hub to couple an energy source to the handle, a shaft including a shaft lumen and a distal end, wherein the distal end includes a passive electrode, an active electrode, wherein the active electrode includes an electrode lumen in fluid communication with an outlet at a distal tip to deliver fluid, and a proximal support coupled to and partially overlapping with the active electrode, wherein the proximal support includes a proximal support lumen that fluidly couples the shaft lumen to the electrode lumen, wherein movement of the movable part of the handle controls a position of the proximal support relative to the shaft and also controls a position of the active electrode relative to the passive electrode.